cpp end

setuo: clang cache to gitignore
feat: rewrite to c
2026-04-03 12:34:06 +02:00 · 2026-04-03 12:33:45 +02:00 · 2026-04-01 23:51:02 +02:00
31 changed files with 3788 additions and 130 deletions
--- a/.clangd
+++ b/.clangd
@@ -1,3 +1,3 @@

-CompileFlags:
-  Add: [-std=c++20]
+#CompileFlags:
+#  Add: [-std=c++20]
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 build
+.cache
--- a/56
+++ b/56
@@ -0,0 +1,56 @@
+#include "fastmath.hpp"
+#include "polygon.hpp"
+#include <QApplication>
+#include <QImage>
+#include <QLabel>
+#include <QPixmap>
+#include <iostream>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+// testing fastmath.h
+/*
+void test(vec<2> *in) {
+    vec<2> v = {{decimal(1.0), decimal(0.5)}};
+    in = &v;
+}*/
+
+int main(int argc, char *argv[]) {
+    vec3 v1 = vec3(5.0f, 40.0f, 2.0f);
+    vec3 v2 = vec3(5.0, 10.0, 2.2);
+    vec3 v3 = v1;
+    std::cout << v1 << v2 << decimal(0.5) * v2 << (v1 + v2) << v1 * v2 << "\n"
+              << v1.cross(v2) << v1.len() << "\n"
+              << v1.normalize() << std::endl;
+
+    decimal d = decimal(2.0f);
+    d += decimal(0.5);
+    std::cout << "\n"
+              << decimal(2.0) / decimal(-0.5) << "\n"
+              << decimal(2.0).sqrt() << "\n"
+              << d << std::endl;
+
+    polygon p = {vec3(0.0, 0.0, 0.0), vec3(0.0, 1.0, 0.0), vec3(1.0, 0.0, 0.0)};
+    std::cout << p.contains(vec3(0.1, 0.1, 0.1)) << std::endl;
+
+    std::cout << matN<3>::identity() * v1 << std::endl;
+
+    // QApplication a(argc, argv);
+    //
+    // uint8_t *pixel = new uint8_t[64 * 64 * 3];
+    //
+    // for (int i = 1; i < 64 * 64 * 3; i += 3) {
+    //     pixel[i] = 255;
+    // }
+    //
+    // QWidget widget;
+    // widget.setAutoFillBackground(true);
+    // widget.setGeometry(0, 0, 500, 500);
+    // QLabel display(&widget);
+    // QImage img((unsigned char *)pixel, 64, 64, QImage::Format_RGB888);
+    // display.setPixmap(QPixmap::fromImage(img).scaled(widget.size()));
+    // widget.show();
+    // return a.exec();
+}
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,14 +2,15 @@ cmake_minimum_required(VERSION 3.15)

 project(SDFVisual VERSION 0.1
 		DESCRIPTION "CPU SDF Renderer"
-		LANGUAGES CXX)
+		LANGUAGES C)

-find_package(Qt6 REQUIRED COMPONENTS
-    Widgets Gui
-)
+# find_package(Qt6 REQUIRED COMPONENTS
+#     Widgets Gui
+# )

-set (CMAKE_CXX_STANDARD 20)
-add_executable(one main.cpp)
+# set (CMAKE_CXX_STANDARD 20)
+set (C_STANDARD 11)
+add_executable(one src/main.c)

-target_link_libraries(one m Qt6::Widgets Qt6::Gui)
-# target_link_libraries(one m)
+# target_link_libraries(one m Qt6::Widgets Qt6::Gui)
+target_link_libraries(one m)
--- a/MainWindow.hpp
+++ b/MainWindow.hpp
@@ -0,0 +1,32 @@
+#include <QImage>
+#include <QKeyEvent>
+#include <QLabel>
+#include <QObject>
+#include <QPixmap>
+#include <QTimer>
+#include <QWidget>
+#include <iostream>
+
+class MainWindow : public QWidget {
+  public:
+    std::function<void(QKeyEvent *)> keyDownCallBack;
+
+    MainWindow() : display(QLabel(this)) {
+        setAutoFillBackground(true);
+        setGeometry(0, 0, 500, 500);
+        display.setFocusPolicy(Qt::StrongFocus);
+    }
+
+    void updateLabel(uint8_t *pixel) {
+        QImage img((unsigned char *)pixel, 64, 64, QImage::Format_RGB888);
+        display.setPixmap(QPixmap::fromImage(img).scaled(size() * 1));
+    }
+
+    void keyPressEvent(QKeyEvent *e) {
+        keyDownCallBack(e);
+        QWidget::keyPressEvent(e);
+    }
+
+  private:
+    QLabel display;
+};
--- a/beziercurve.hpp
+++ b/beziercurve.hpp
@@ -0,0 +1,11 @@
+#include "fastmath.hpp"
+
+template <class T>
+T calcHandels(const T curr, const T prev, const T next, T &left, T &right) {
+    T prev
+}
+
+template <class T> T bezierCurve(T a, T ad, T b, T bd, float t) {
+    return std::pow(1 - t, 3.0) * a + 3 * std::pow(1 - t, 2.0) * t * ad +
+           3 * (1 - t) * std::pow(t, 2.0) * bd + std::pow(t, 3.0) * b;
+}
--- a/fastmath.hpp
+++ b/fastmath.hpp
@@ -35,6 +35,8 @@ struct decimal {
    }
    inline decimal &operator+=(const decimal &d) { return (*this) = {i + d.i}; }

+    inline decimal &operator-=(const decimal &d) { return (*this) = {i - d.i}; }
+
    inline friend decimal operator-(const decimal &d1, const decimal &d2) {
        return {d1.i - d2.i};
    }
@@ -91,7 +93,7 @@ template <int n, class Dev> struct vec {
    }

    friend Dev operator+(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
-        Dev newV = {};
+        Dev newV;

        for (int i = 0; i < n; i++) {
            newV.v[i] = v1.v[i] + v2.v[i];
@@ -99,16 +101,24 @@ template <int n, class Dev> struct vec {
        return newV;
    }
    friend Dev operator+=(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
-        Dev newV = {};
+        Dev newV;

        for (int i = 0; i < n; i++) {
            newV.v[i] = v1.v[i] + v2.v[i];
        }
        return newV;
    }
+    friend Dev operator-=(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
+        Dev newV;
+
+        for (int i = 0; i < n; i++) {
+            newV.v[i] = v1.v[i] - v2.v[i];
+        }
+        return newV;
+    }

    friend Dev operator-(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
-        Dev newV = {};
+        Dev newV;

        for (int i = 0; i < n; i++) {
            newV.v[i] = v1.v[i] - v2.v[i];
@@ -125,7 +135,7 @@ template <int n, class Dev> struct vec {
    }

    Dev operator-() {
-        Dev newV = {};
+        Dev newV;
        for (int i = 0; i < n; i++) {
            newV.v[i] = -v[i];
        }
@@ -135,21 +145,21 @@ template <int n, class Dev> struct vec {
    friend Dev operator*(const vec<n, Dev> &v, const decimal &d) {
        int32_t f = d.i >> HALF_SHIFT;

-        Dev newV = {};
+        Dev newV;
        for (int i = 0; i < n; i++) {
            newV.v[i] = (v.v[i].i >> HALF_SHIFT) * f;
        }
        return newV;
    }
    static Dev max(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
-        Dev newV = {};
+        Dev newV;
        for (int i = 0; i < n; i++) {
            newV.v[i] = std::max(v1.v[i], v2.v[i]);
        }
        return newV;
    }
    static Dev min(const vec<n, Dev> &v1, const vec<n, Dev> &v2) {
-        Dev newV = {};
+        Dev newV;
        for (int i = 0; i < n; i++) {
            newV.v[i] = std::min(v1.v[i], v2.v[i]);
        }
@@ -194,7 +204,7 @@ template <int n, class Dev> struct vec {
    }

    constexpr static Dev zero() {
-        Dev newV = {};
+        Dev newV;
        for (int i = 0; i < n; i++) {
            newV[i] = decimal(0);
        }
@@ -203,6 +213,8 @@ template <int n, class Dev> struct vec {
 };
 struct vec2 : public vec<2, vec2> {

+    vec2() : vec<2, vec2>() {};
+
    vec2(float x, float y) : vec<2, vec2>(decimal(x), decimal(y)) {}

    vec2(double x, double y) : vec<2, vec2>(decimal(x), decimal(y)) {}
@@ -211,6 +223,8 @@ struct vec2 : public vec<2, vec2> {

    vec2(decimal x, decimal y) : vec<2, vec2>(x, y) {}

+    template <class origVec> vec2(origVec v) : vec<2, vec2>(v.v[0], v.v[1]) {}
+
    decimal &x() { return v[0]; }
    decimal &y() { return v[1]; }
 };
--- a/main.cpp
+++ b/main.cpp
@@ -1,14 +1,11 @@
+#include "MainWindow.hpp"
 #include "fastmath.hpp"
+#include "plane.hpp"
 #include "polygon.hpp"
 #include "renderer.hpp"
 #include "rendertarget.hpp"
 #include "testModel.hpp"
 #include <QApplication>
-#include <QImage>
-#include <QLabel>
-#include <QObject>
-#include <QPixmap>
-#include <QTimer>
 #include <chrono>
 #include <functional>
 #include <math.h>
@@ -46,40 +43,11 @@ char *drawToString(unsigned short *img) {
    return textImg;
 }

-void drawImage(unsigned short *img) {
-    decimal heightPerPix = decimal(1.0) / decimal((float)(HIGHT * FAA_FAC));
-    decimal widthPerPix = decimal(1.0) / decimal((float)(WIDTH * FAA_FAC));
-
-    polygon poly = polygon(vec3(0.9, 0.9, 0.0) * decimal(128.0),
-                           vec3(0.5, 0.1, 0.0) * decimal(128.0),
-                           vec3(0.1, 0.9, 0.0) * decimal(128.0));
-
-    // printf("\n hpp: %f, wpp: %f
-    // \n",TO_FLOAT(heightPerPix),TO_FLOAT(widthPerPix)); calcViewPos(t);
-    for (decimal y = 0; y < decimal((float)(RHIGHT)); y += decimal(1.0)) {
-        for (decimal x = 0; x < decimal((float)(RWIDTH)); x += decimal(1.0)) {
-
-            vec3 p = vec3(x, y, 0.0);
-
-            if (poly.contains(p)) {
-
-                img[(y.i >> SHIFT_AMOUNT) * RWIDTH + (x.i >> SHIFT_AMOUNT)] =
-                    (unsigned short)23; // (((-normal[1]+(1 <<
-                                        // SHIFT_AMOUNT))*14)>>SHIFT_AMOUNT);
-            }
-        }
-    }
-    printf("done writing %d \n", *(img + sizeof(unsigned short) * 32 * 32));
-}
-
 int main(int argc, char *argv[]) {
    Rendertarget target(128, 128);
    Renderer renderer;
    renderer.target = &target;

-    polygon poly =
-        polygon(vec3(0.9, 0.9, 1.0), vec3(0.5, 0.1, 1.0), vec3(0.1, 0.9, 1.0));
-
    std::chrono::steady_clock::time_point begin =
        std::chrono::steady_clock::now();
    renderer.render(&testModel, mat4::translation(vec3(0.0f, -1.0f, 5.0f)) *
@@ -103,23 +71,48 @@ int main(int argc, char *argv[]) {
            arr[c] += target.pixels[start + c];
        }
    };
+    vec3 pos;

    QApplication a(argc, argv);
-    QWidget widget;
-    widget.setAutoFillBackground(true);
-    widget.setGeometry(0, 0, 500, 500);
-    QLabel display(&widget);
-    QImage img((unsigned char *)pixel, 64, 64, QImage::Format_RGB888);
+    MainWindow widget;
+    widget.setWindowTitle("SoftwareRenderer");

    // display.setPixmap(QPixmap::fromImage(img).scaled(widget.size()));
+    auto keyEvent = [&pos](QKeyEvent *e) {
+        decimal step = decimal(0.5);
+        switch (e->key()) {
+        case Qt::Key_W:
+            pos.z() += step;
+            break;
+        case Qt::Key_S:
+            pos.z() -= step;
+            break;
+        case Qt::Key_A:
+            pos.x() += step;
+            break;
+        case Qt::Key_D:
+            pos.x() -= step;
+            break;
+        }
+    };
+    widget.keyDownCallBack = keyEvent;

    float rot = 0.f;
    std::function<void()> renderLoop = [&addTo, &target, &pixel, &renderer,
-                                        &display, &widget, &img, &rot]() {
+                                        &widget, &rot, &pos]() {
        std::chrono::steady_clock::time_point begin =
            std::chrono::steady_clock::now();
-        renderer.render(&testModel, mat4::translation(vec3(0.0f, -1.0f, 5.0f)) *
-                                        mat4::rotateOnY(rot));
+
+        target.clearDepth();
+        target.clearTarget();
+
+        // renderer.render(&testModel, mat4::translation(vec3(0.0f,
+        // -1.0f, 5.0f)) *
+        //                                 mat4::rotateOnY(rot));
+        // renderer.render(&testModel, mat4::translation(vec3(1.0f,
+        // -1.0f, 7.0f)) *
+        //                                 mat4::rotateOnY(rot));
+        renderer.render(&plane, mat4::translation(pos));
        std::chrono::steady_clock::time_point end =
            std::chrono::steady_clock::now();

@@ -143,7 +136,8 @@ int main(int argc, char *argv[]) {
            }
        }
        // QImage img((unsigned char *)pixel, 64, 64, QImage::Format_RGB888);
-        display.setPixmap(QPixmap::fromImage(img).scaled(widget.size() * 1));
+        widget.updateLabel(pixel);
+
        rot += 0.1f;
    };
    renderLoop();
--- a/mathTest.cpp
+++ b/mathTest.cpp
@@ -0,0 +1,63 @@
+#include "fastmath.hpp"
+#include "polygon.hpp"
+#include <QApplication>
+#include <QImage>
+#include <QLabel>
+#include <QPixmap>
+#include <iostream>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+// testing fastmath.h
+/*
+void test(vec<2> *in) {
+    vec<2> v = {{decimal(1.0), decimal(0.5)}};
+    in = &v;
+}*/
+
+int main(int argc, char *argv[]) {
+    vec3 v1 = vec3(5.0f, 40.0f, 2.0f);
+    vec3 v2 = vec3(5.0, 10.0, 2.2);
+    vec3 v3 = v1;
+    std::cout << v1 << v2 << decimal(0.5) * v2 << (v1 + v2) << v1 * v2 << "\n"
+              << v1.cross(v2) << v1.len() << "\n"
+              << v1.normalize() << std::endl;
+
+    decimal d = decimal(2.0f);
+    d += decimal(0.5);
+    std::cout << "\n"
+              << decimal(2.0) / decimal(-0.5) << "\n"
+              << decimal(2.0).sqrt() << "\n"
+              << d << std::endl;
+
+    polygon p = {vec3(0.0, 0.0, 0.0), vec3(0.0, 1.0, 0.0), vec3(1.0, 0.0, 0.0)};
+    std::cout << p.contains(vec3(0.1, 0.1, 0.1)) << std::endl;
+
+    mat4 m = mat4::translation({2.0f, 3.0f, 5.0f});
+
+    std::cout << matN<3>::identity() * v1 << std::endl;
+    std::cout << m << std::endl;
+    std::cout << mat4::identity().cutTo<mat3>() << std::endl;
+    std::cout << m * vec4(v1, decimal(1.0f)) << std::endl;
+    std::cout << mat4::rotateOnX(1.5707f) * vec4(1.f, 0.f, 0.f, 0.f)
+              << std::endl;
+
+    // QApplication a(argc, argv);
+    //
+    // uint8_t *pixel = new uint8_t[64 * 64 * 3];
+    //
+    // for (int i = 1; i < 64 * 64 * 3; i += 3) {
+    //     pixel[i] = 255;
+    // }
+    //
+    // QWidget widget;
+    // widget.setAutoFillBackground(true);
+    // widget.setGeometry(0, 0, 500, 500);
+    // QLabel display(&widget);
+    // QImage img((unsigned char *)pixel, 64, 64, QImage::Format_RGB888);
+    // display.setPixmap(QPixmap::fromImage(img).scaled(widget.size()));
+    // widget.show();
+    // return a.exec();
+}
--- a/parseObj.py
+++ b/parseObj.py
@@ -1,5 +1,5 @@
 # Open the file in read mode
-file = open("test.obj", "r")
+file = open("plane.obj", "r")

 # Read the entire content of the file
 content = file.read().split("\n")
@@ -8,13 +8,13 @@ file.close()

 startVerts = 0
 verts = []
-for index,line in enumerate(content):
-    if line[0] == 'o':
+for index, line in enumerate(content):
+    if line[0] == "o":
        startVerts = index + 1
        content = content[startVerts:]
        break

-for index,line in enumerate(content):
+for index, line in enumerate(content):
    if "vn" in line:
        endVerts = index
        verts = content[:endVerts]
@@ -23,28 +23,50 @@ for index,line in enumerate(content):


 normals = []
-for index,line in enumerate(content):
+for index, line in enumerate(content):
    if "vt" in line:
        normals = content[:index]
        content = content[index:]
        break

-startFaces = 0;
+startFaces = 0
 faces = []
-for index,line in enumerate(content):
-    if line[0] == 'f':
+for index, line in enumerate(content):
+    if line[0] == "f":
        startFaces = index
        faces = content[startFaces:-1]
        break

-colors = ["vec3(" +",".join(vert.split(" ")[4:7]) + ")" for vert in verts]
-verts = ["vec3(" +",".join(vert.split(" ")[1:4]) + ")" for vert in verts]
-faces = [ ",".join(["{" + str(int((d.split("/")[0])) - 1) + "," +  str(int((d.split("/")[2])) - 1) + "}" for d in face.split(" ")[1:4]]) for face in faces]
-normals = ["vec3(" + ",".join(normal.split(" ")[1:4]) + ")" for normal in normals]
+colors = ["{" + ",".join(vert.split(" ")[4:7]) + "}" for vert in verts]
+verts = ["{" + ",".join(vert.split(" ")[1:4]) + "}" for vert in verts]
+faces = [
+    ",".join(
+        [
+            str(int((d.split("/")[0])) - 1) + "," + str(int((d.split("/")[2])) - 1)
+            for d in face.split(" ")[1:4]
+        ]
+    )
+    for face in faces
+]
+normals = ["{" + ",".join(normal.split(" ")[1:4]) + "}" for normal in normals]

-out = "#include \"model.hpp\" \n const model testModel({" + ",".join(verts) +"},{" + ",".join(faces) + "},{" + ",".join(normals) + "},{"+ ",".join(colors)+"});"
+out = (
+    '#include "../renderer.h" \n const model testModel = {(vec3[]){'
+    + ",".join(verts)
+    + "},(int[]){"
+    + ",".join(faces)
+    + "},(vec3[]){"
+    + ",".join(normals)
+    + "},(vec3[]){"
+    + ",".join(colors)
+    + "},"
+    + str(len(verts))
+    + ","
+    + str(len(faces) * 6)
+    + "};"
+)

-with open("testModel.hpp", "w") as f:
-  f.write(out)
-print(out)
+with open("src/models/plane.h", "w") as f:
+    f.write(out)
+print(faces)
 # Close the file
--- a/plane.hpp
+++ b/plane.hpp
@@ -0,0 +1,2 @@
+#include "renderer.h"
+ const model testModel = create_model((vec3[]){{{7.334897,-2.436740,4.541961},{-7.899121,-2.436740,4.541961},{7.334897,-2.436740,35.009995},{-7.899121,-2.436740,35.009995}},(int[]){{1,0},{2,0},{0,0},{1,0},{3,0},{2,0}});
--- a/plane.mtl
+++ b/plane.mtl
@@ -0,0 +1,12 @@
+# Blender 5.1.0 MTL File: 'test.blend'
+# www.blender.org
+
+newmtl Material.001
+Ns 0.000000
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.500000
+d 1.000000
+illum 2
--- a/plane.obj
+++ b/plane.obj
@@ -0,0 +1,727 @@
+# Blender 5.1.0
+# www.blender.org
+mtllib plane.mtl
+o Cylinder.002
+v 0.698513 0.757563 0.000000 0.0000 0.4470 0.0334
+v 0.044645 2.825787 0.000000 0.0000 0.4470 0.0334
+v 0.656388 0.757563 0.238906 0.0000 0.4470 0.0334
+v 0.041953 2.825787 0.015270 0.0000 0.4470 0.0334
+v 0.535092 0.757563 0.448996 0.0000 0.4470 0.0334
+v 0.034200 2.825787 0.028697 0.0000 0.4470 0.0334
+v 0.349257 0.757563 0.604930 0.0000 0.4470 0.0334
+v 0.022323 2.825787 0.038664 0.0000 0.4470 0.0334
+v 0.121296 0.757563 0.687901 0.0000 0.4470 0.0334
+v 0.007753 2.825787 0.043967 0.0000 0.4470 0.0334
+v -0.121296 0.757563 0.687901 0.0000 0.4470 0.0334
+v -0.007753 2.825787 0.043967 0.0000 0.4470 0.0334
+v -0.349257 0.757563 0.604930 0.0000 0.4470 0.0334
+v -0.022323 2.825787 0.038664 0.0000 0.4470 0.0334
+v -0.535092 0.757563 0.448996 0.0000 0.4470 0.0334
+v -0.034200 2.825787 0.028697 0.0000 0.4470 0.0334
+v -0.656388 0.757563 0.238906 0.0000 0.4470 0.0334
+v -0.041953 2.825787 0.015270 0.0000 0.4470 0.0334
+v -0.698513 0.757563 -0.000000 0.0000 0.4470 0.0334
+v -0.044645 2.825787 0.000000 0.0000 0.4470 0.0334
+v -0.656388 0.757563 -0.238906 0.0000 0.4470 0.0334
+v -0.041953 2.825787 -0.015270 0.0000 0.4470 0.0334
+v -0.535092 0.757563 -0.448996 0.0000 0.4470 0.0334
+v -0.034200 2.825787 -0.028697 0.0000 0.4470 0.0334
+v -0.349257 0.757563 -0.604930 0.0000 0.4470 0.0334
+v -0.022323 2.825787 -0.038664 0.0000 0.4470 0.0334
+v -0.121296 0.757563 -0.687901 0.0000 0.4470 0.0334
+v -0.007753 2.825787 -0.043967 0.0000 0.4470 0.0334
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+f 47/49/47 65/47/65 64/50/64
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+f 17/80/17 80/79/80 15/79/15
+f 3/34/3 73/70/73 1/70/1
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+f 1/90/1 90/89/90 35/89/35
+f 13/77/13 78/75/78 11/75/11
+f 23/83/23 83/82/83 21/82/21
+f 33/88/33 88/87/88 31/87/31
+f 9/73/9 76/72/76 7/72/7
+f 19/81/19 81/80/81 17/80/17
+f 29/86/29 86/85/86 27/85/27
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+f 107/28/107 54/35/54 53/38/53
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+f 103/21/103 50/44/50 49/48/49
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+f 109/104/109 6/4/6 4/105/4
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+f 111/104/111 18/107/18 16/13/16
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+f 110/104/110 24/19/24 22/108/22
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+f 110/104/110 28/24/28 26/22/26
+f 110/104/110 30/109/30 28/24/28
+f 110/104/110 32/26/32 30/109/30
+f 109/104/109 32/26/32 110/104/110
+f 109/104/109 36/31/36 34/29/34
+f 109/104/109 2/110/2 36/31/36
+f 109/104/109 4/105/4 2/1/2
+f 111/104/111 10/9/10 8/7/8
+f 110/104/110 22/108/22 20/16/20
+f 109/104/109 34/29/34 32/26/32
+f 111/104/111 109/104/109 112/104/112
+f 110/104/110 111/104/111 112/104/112
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+f 58/61/58 121/71/121 57/113/57
+f 59/60/59 122/74/122 58/61/58
+f 59/60/59 124/78/124 123/76/123
+f 60/114/60 120/54/120 124/78/124
+f 131/111/131 136/58/136 132/114/132
+f 129/112/129 132/114/132 130/60/130
+f 127/55/127 130/60/130 128/61/128
+f 126/113/126 127/55/127 128/61/128
+f 135/65/135 125/56/125 126/113/126
+f 142/60/142 132/114/132 146/114/146
+f 147/115/147 133/59/133 131/111/131
+f 148/116/148 135/65/135 126/113/126
+f 145/57/145 134/64/134 140/117/140
+f 146/114/146 136/58/136 143/58/143
+f 138/62/138 131/111/131 129/112/129
+f 141/118/141 126/113/126 128/61/128
+f 58/61/58 148/116/148 141/118/141
+f 42/112/42 147/115/147 138/62/138
+f 60/114/60 143/58/143 61/58/61
+f 40/56/40 140/117/140 39/64/39
+f 57/113/57 139/63/139 148/116/148
+f 43/111/43 144/59/144 147/115/147
+f 59/60/59 146/114/146 60/114/60
+f 56/65/56 140/117/140 139/63/139
+f 42/112/42 137/55/137 41/55/41
+f 58/61/58 142/60/142 59/60/59
+f 61/58/61 144/59/144 44/59/44
+f 41/55/41 145/57/145 40/56/40
+f 2/1/2 4/105/4 92/2/92
+f 92/2/92 4/105/4 6/4/6
+f 6/4/6 8/7/8 94/6/94
+f 8/7/8 10/9/10 95/8/95
+f 10/9/10 12/11/12 96/10/96
+f 12/11/12 14/106/14 97/12/97
+f 97/12/97 14/106/14 16/13/16
+f 16/13/16 18/107/18 99/15/99
+f 99/15/99 18/107/18 20/16/20
+f 20/16/20 22/108/22 101/18/101
+f 101/18/101 22/108/22 24/19/24
+f 24/19/24 26/22/26 103/21/103
+f 26/22/26 28/24/28 104/23/104
+f 28/24/28 30/109/30 105/25/105
+f 105/25/105 30/109/30 32/26/32
+f 32/26/32 34/29/34 107/28/107
+f 34/29/34 36/31/36 108/30/108
+f 36/31/36 2/110/2 91/32/91
+f 5/33/5 75/33/75 74/34/74
+f 54/35/54 37/94/37 72/36/72
+f 53/38/53 54/35/54 71/37/71
+f 52/40/52 53/38/53 70/39/70
+f 51/42/51 52/40/52 69/41/69
+f 50/44/50 51/42/51 68/43/68
+f 66/46/66 49/48/49 50/44/50
+f 65/47/65 48/95/48 49/48/49
+f 47/49/47 48/95/48 65/47/65
+f 63/51/63 46/96/46 47/49/47
+f 45/52/45 46/96/46 63/51/63
+f 120/54/120 114/97/114 45/52/45
+f 137/55/137 127/55/127 125/56/125
+f 143/58/143 136/58/136 133/59/133
+f 142/60/142 141/118/141 128/61/128
+f 138/62/138 129/112/129 127/55/127
+f 139/63/139 140/117/140 134/64/134
+f 38/66/38 118/102/118 119/67/119
+f 72/69/72 37/103/37 38/66/38
+f 1/70/1 72/69/72 55/68/55
+f 55/68/55 119/67/119 5/33/5
+f 5/33/5 119/67/119 121/71/121
+f 121/71/121 122/74/122 9/73/9
+f 122/74/122 123/76/123 11/75/11
+f 123/76/123 124/78/124 13/77/13
+f 124/78/124 120/54/120 15/79/15
+f 15/79/15 120/54/120 62/53/62
+f 17/80/17 62/53/62 63/51/63
+f 19/81/19 63/51/63 64/50/64
+f 64/50/64 65/47/65 23/83/23
+f 65/47/65 66/46/66 25/84/25
+f 66/46/66 67/45/67 27/85/27
+f 67/45/67 68/43/68 29/86/29
+f 68/43/68 69/41/69 31/87/31
+f 69/41/69 70/39/70 33/88/33
+f 70/39/70 71/37/71 35/89/35
+f 35/89/35 71/37/71 72/36/72
+f 90/119/90 73/120/73 74/121/74
+f 74/121/74 75/122/75 76/91/76
+f 76/91/76 77/123/77 78/124/78
+f 78/124/78 79/125/79 80/126/80
+f 80/126/80 81/127/81 82/128/82
+f 82/128/82 83/129/83 84/92/84
+f 84/92/84 85/130/85 86/131/86
+f 86/131/86 87/132/87 88/93/88
+f 88/93/88 89/133/89 90/119/90
+f 90/119/90 74/121/74 76/91/76
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+f 15/79/15 80/79/80 79/77/79
+f 25/84/25 85/84/85 84/83/84
+f 35/89/35 90/89/90 89/88/89
+f 11/75/11 78/75/78 77/73/77
+f 21/82/21 83/82/83 82/81/82
+f 31/87/31 88/87/88 87/86/87
+f 7/72/7 76/72/76 75/33/75
+f 17/80/17 81/80/81 80/79/80
+f 3/34/3 74/34/74 73/70/73
+f 27/85/27 86/85/86 85/84/85
+f 1/90/1 73/90/73 90/89/90
+f 13/77/13 79/77/79 78/75/78
+f 23/83/23 84/83/84 83/82/83
+f 33/88/33 89/88/89 88/87/88
+f 9/73/9 77/73/77 76/72/76
+f 19/81/19 82/81/82 81/80/81
+f 29/86/29 87/86/87 86/85/86
+f 108/30/108 91/32/91 37/94/37
+f 107/28/107 108/30/108 54/35/54
+f 106/27/106 107/28/107 53/38/53
+f 105/25/105 106/27/106 52/40/52
+f 104/23/104 105/25/105 51/42/51
+f 103/21/103 104/23/104 50/44/50
+f 102/20/102 103/21/103 49/48/49
+f 101/18/101 102/20/102 48/95/48
+f 100/17/100 101/18/101 47/49/47
+f 99/15/99 100/17/100 46/96/46
+f 98/14/98 99/15/99 45/52/45
+f 113/98/113 97/12/97 98/14/98
+f 96/10/96 97/12/97 113/98/113
+f 95/8/95 96/10/96 115/99/115
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+f 93/5/93 94/6/94 117/101/117
+f 38/66/38 92/2/92 93/5/93
+f 91/3/91 92/2/92 38/66/38
+f 43/111/43 113/98/113 114/97/114
+f 42/112/42 115/99/115 113/98/113
+f 41/55/41 116/100/116 115/99/115
+f 41/55/41 40/56/40 117/101/117
+f 40/56/40 39/64/39 118/102/118
+f 39/64/39 56/65/56 119/67/119
+f 44/59/44 114/97/114 120/54/120
+f 57/113/57 121/71/121 119/67/119
+f 58/61/58 122/74/122 121/71/121
+f 59/60/59 123/76/123 122/74/122
+f 59/60/59 60/114/60 124/78/124
+f 60/114/60 61/58/61 120/54/120
+f 131/111/131 133/59/133 136/58/136
+f 129/112/129 131/111/131 132/114/132
+f 127/55/127 129/112/129 130/60/130
+f 126/113/126 125/56/125 127/55/127
+f 135/65/135 134/64/134 125/56/125
+f 142/60/142 130/60/130 132/114/132
+f 147/115/147 144/59/144 133/59/133
+f 148/116/148 139/63/139 135/65/135
+f 145/57/145 125/56/125 134/64/134
+f 146/114/146 132/114/132 136/58/136
+f 138/62/138 147/115/147 131/111/131
+f 141/118/141 148/116/148 126/113/126
+f 58/61/58 57/113/57 148/116/148
+f 42/112/42 43/111/43 147/115/147
+f 60/114/60 146/114/146 143/58/143
+f 40/56/40 145/57/145 140/117/140
+f 57/113/57 56/65/56 139/63/139
+f 43/111/43 44/59/44 144/59/144
+f 59/60/59 142/60/142 146/114/146
+f 56/65/56 39/64/39 140/117/140
+f 42/112/42 138/62/138 137/55/137
+f 58/61/58 141/118/141 142/60/142
+f 61/58/61 143/58/143 144/59/144
+f 41/55/41 137/55/137 145/57/145
--- a/polygon.hpp
+++ b/polygon.hpp
@@ -10,28 +10,39 @@ struct polygon {
    bool small = false;
    decimal baryFactor;

+    decimal dot00;
+    decimal dot01;
+    decimal dot11;
+    vec2 v0;
+    vec2 v1;
+
    decimal bounding[4]; // min x, max x, min y, max y
    vec3 normals[3];
    vec3 colors[3];
    vec3 barycentrics;
    vec3 boundingBarycentrics;

-    polygon(const vec3 &v1, const vec3 &v2, const vec3 &v3)
-        : points{v1, v2, v3}, delta{} {}
-    polygon() : points{}, delta{} {}
-
    void calcDelta() {

-        for (int i = 0; i < 3; i++) {
-            int n = (i + 1) % 3;
+        // for (int i = 0; i < 3; i++) {
+        //     int n = (i + 1) % 3;
+        //
+        //     delta[i * 3] = points[i].y() - points[n].y();
+        //     delta[i * 3 + 1] = points[n].x() - points[i].x();
+        //     delta[i * 3 + 2] =
+        //         points[i].x() * points[n].y() - points[i].y() *
+        //         points[n].x();
+        //     if (delta[i * 3].i == 0 && delta[i * 3 + 1].i == 0)
+        //         small = true;
+        // }
+
+        v0 = vec2(points[2]) - vec2(points[0]);
+        v1 = vec2(points[1]) - vec2(points[0]);
+
+        dot00 = v0 * v0;
+        dot01 = v1 * v0;
+        dot11 = v1 * v1;

-            delta[i * 3] = points[i].y() - points[n].y();
-            delta[i * 3 + 1] = points[n].x() - points[i].x();
-            delta[i * 3 + 2] =
-                points[i].x() * points[n].y() - points[i].y() * points[n].x();
-            if (delta[i * 3].i == 0 && delta[i * 3 + 1].i == 0)
-                small = true;
-        }
        bounding[0] = points[0].x();
        bounding[1] = points[0].x();
        bounding[2] = points[0].y();
@@ -47,11 +58,14 @@ struct polygon {
                bounding[3] = points[i].y();
        }

-        baryFactor =
-            (points[1].x() - points[0].x()) * (points[2].y() - points[1].y()) -
-            (points[1].y() - points[0].y()) * (points[2].x() - points[1].x());
-
-        if (baryFactor.isSmall()) {
+        // baryFactor =
+        //     (points[1].x() - points[0].x()) * (points[2].y() - points[1].y())
+        //     - (points[1].y() - points[0].y()) * (points[2].x() -
+        //     points[1].x());
+        std::cout << dot00 << " " << dot01 << " " << dot11 << std::endl;
+        baryFactor = dot00 * dot11 - dot01 * dot01;
+        std::cout << "baryFactor:" << baryFactor << std::endl;
+        if (baryFactor.i == 0) {
            small = true;
        } else
            baryFactor = decimal(1.0) / baryFactor;
@@ -62,10 +76,10 @@ struct polygon {
    }

    vec3 avgNormal() {
-        vec3 result;
-        for (int i = 0; i < 3; i++) {
-            result += normals[i];
-        }
+        vec3 result = normals[0] + normals[1] + normals[2];
+        // for (int i = 0; i < 3; i++) {
+        //     result += normals[i];
+        // }
        return result * decimal(0.3333);
    }

@@ -74,7 +88,7 @@ struct polygon {
        //    return false;
        for (int i = 0; i < 3; i++) {
            if (small)
-                return true;
+                return false;
            vec3 d = p;
            if ((d.x() * delta[i * 3] + d.y() * delta[i * 3 + 1] +
                 delta[i * 3 + 2]) > decimal(0.2))
@@ -86,9 +100,9 @@ struct polygon {
        if (small)
            return true;
        else
-            return (barycentrics[0] >= decimal(-0.01)) &&
-                   (barycentrics[1] >= decimal(-0.01)) &&
-                   (barycentrics[2] >= decimal(-0.01));
+            return (barycentrics[0] >= decimal(-0.0)) &&
+                   (barycentrics[1] >= decimal(-0.0)) &&
+                   (barycentrics[0] + barycentrics[1] <= decimal(1.0));
    }
    friend std::ostream &operator<<(std::ostream &os, const polygon &p) {
        for (int i = 0; i < 3; i++) {
@@ -119,13 +133,25 @@ struct polygon {
        // if (small)
        //     return vec3(decimal(0.333), decimal(0.333), decimal(0.333));

-        barycentrics[0] = (points[1].x() - s.x()) * (points[2].y() - s.y()) -
-                          (points[2].x() - s.x()) * (points[1].y() - s.y());
-        barycentrics[1] = (points[2].x() - s.x()) * (points[0].y() - s.y()) -
-                          (points[0].x() - s.x()) * (points[2].y() - s.y());
+        vec2 v2 = vec2(s) - vec2(points[0]);
+        decimal dot02 = v0 * v2;
+        decimal dot12 = v1 * v2;
+
+        barycentrics = {};
+        barycentrics[0] = dot11 * dot02 - dot01 * dot12;
+        barycentrics[1] = dot00 * dot12 - dot01 * dot02;
+
+        // barycentrics[0] = (points[1].x() - s.x()) * (points[2].y() -
+        // s.y()) -
+        //                   (points[2].x() - s.x()) * (points[1].y() -
+        //                   s.y());
+        // barycentrics[1] = (points[2].x() - s.x()) * (points[0].y() -
+        // s.y()) -
+        //                   (points[0].x() - s.x()) * (points[2].y() -
+        //                   s.y());
        barycentrics = barycentrics * baryFactor;
        barycentrics[2] = decimal(1.0) - barycentrics[1] - barycentrics[0];
-        // return result;
+        // barycentrics[0]; return result;
        boundingBarycentrics = vec3::max(
            vec3::min(barycentrics, vec3(1.0, 1.0, 1.0)), vec3(0.0, 0.0, 0.0));
    }
--- a/renderer.hpp
+++ b/renderer.hpp
@@ -6,11 +6,10 @@
 #include "model.hpp"
 #include "polygon.hpp"
 #include "rendertarget.hpp"
-#include <bits/stdc++.h>
 #include <cstring>
 #include <memory.h>

-#define SCREEN_SPACE_SIZE 8.0
+#define SCREEN_SPACE_SIZE 2.0

 class Renderer {

@@ -22,9 +21,9 @@ class Renderer {

    void toScreenSpace(vec3 *np, mat4 matrix) {
        vec4 tp = (matrix * vec4(*np, decimal(1.0f)));
-        tp.x() = tp.x() / tp.z() * decimal(2.0) * decimal(SCREEN_SPACE_SIZE) +
+        tp.x() = tp.x() / tp.z() * decimal(SCREEN_SPACE_SIZE) +
                 decimal(SCREEN_SPACE_SIZE);
-        tp.y() = tp.y() / tp.z() * decimal(2.0) * decimal(SCREEN_SPACE_SIZE) +
+        tp.y() = tp.y() / tp.z() * decimal(SCREEN_SPACE_SIZE) +
                 decimal(SCREEN_SPACE_SIZE);
        *np = vec3(tp.x(), tp.y(), tp.z());
    }
@@ -41,12 +40,6 @@ class Renderer {
            decimal((float)(target->height / SCREEN_SPACE_SIZE / 2));

        // TODO clear target with memset
-        if (clearTarget) {
-            // memset((wchar_t *)target->pixels, 0,
-            //        target->height * target->width * sizeof(target[0]));
-            target->clearDepth();
-            target->clearTarget();
-        }

        vec3 verts[model->verts.size()] = {};

@@ -79,22 +72,37 @@ class Renderer {

            int startX = std::max<int>(
                (testP.bounding[0] * invWidthScale).i >> SHIFT_AMOUNT, 0);
-            int endX = std::min<int>((testP.bounding[1] * invWidthScale).i >>
-                                         SHIFT_AMOUNT,
-                                     (uint32_t)target->width - 1);
+            int endX = std::max<int>(
+                std::min<int>((testP.bounding[1] * invWidthScale).i >>
+                                  SHIFT_AMOUNT,
+                              (uint32_t)target->width - 1),
+                0);
            int startY = std::max<int>(
                (testP.bounding[2] * invHeightScale).i >> SHIFT_AMOUNT, 0);
            int endY = std::min<int>((testP.bounding[3] * invHeightScale).i >>
                                         SHIFT_AMOUNT,
                                     target->height - 1);

+            std::cout << "Polys:\n" << testP.baryFactor << "\n";
+            for (int i = 0; i < 3; i++) {
+                std::cout << testP.points[i];
+            }
+            std::cout << "Boundings:\n";
+            std::cout << testP.bounding[0] << " " << startX << "\n";
+            std::cout << testP.bounding[1] << " " << endX << "\n";
+            std::cout << testP.bounding[2] << " " << startY << "\n";
+            std::cout << testP.bounding[3] << " " << endY << "\n";
+
            vec3 pos = vec3(testP.bounding[0], testP.bounding[2], 0.0);
-            for (int x = startX; x < endX; x++) {
-                for (int y = startY; y < endY; y++) {
+            for (int x = 0; x < target->width; x++) {
+                for (int y = 0; y < target->height; y++) {
+                    // for (int x = startX; x < endX; x++) {
+                    //     for (int y = startY; y < endY; y++) {

-                    if (testP.depContains(pos)) {
+                    testP.calcBarycentric(pos);
+                    if (testP.contains(pos)) {

-                        testP.calcBarycentric(pos);
+                        // testP.calcBarycentric(pos);
                        decimal depth = testP.calcDepth();
                        if (depth < target->getDepth(x, y)) {
                            // std::cout << factors << std::endl;
@@ -105,8 +113,8 @@ class Renderer {
                                decimal(0.5);
                            ;
                            target->setDepth(x, y, depth);
-                            target->set(x, y,
-                                        (color * decimal(120.0)) * lightFac);
+                            // target->set(x, y,
+                            //             (color * decimal(120.0)) * lightFac);

                            // target->set(x, y,
                            // vec3(lightFac * decimal(200.0), 0, 0));
@@ -117,8 +125,8 @@ class Renderer {
                            //     x, y,
                            //     (testP.avgNormal() + vec3(1.0, 1.0, 1.0)) *
                            //         decimal(120.0));
-                            // target->set(x, y,
-                            //             testP.barycentrics * decimal(200.0));
+                            target->set(x, y,
+                                        testP.barycentrics * decimal(200.0));
                            // if (!factors.isSmall())
                            //   target->set(x, y, vec3(0., 255.0, 0.));
                        }
--- a/src/gameObjs.h
+++ b/src/gameObjs.h
@@ -0,0 +1,26 @@
+#include "models/plane.h"
+#include "renderer.h"
+
+typedef struct {
+  mat4x4 transform;
+  vec3 velocity;
+  model model;
+} gameObj;
+
+gameObj rocket = {
+    {{1., 0., 0., 0.}, {0., 1., 0., 0.}, {0., 0., 1., 0.}, {0., -1., -10., 0.}},
+    {0.0, 0.0, 0.0},
+    testModel};
+
+const gameObj *allGameObjs[] = {&rocket};
+
+int vertBufferSize() {
+  int count = sizeof(allGameObjs) / sizeof(void *);
+  int result = 0;
+  for (int i = 0; i < count; i++) {
+    if (result < allGameObjs[i]->model.vert_size) {
+      result = allGameObjs[i]->model.vert_size;
+    }
+  }
+  return result * sizeof(vec4);
+}
--- a/src/linmath.h
+++ b/src/linmath.h
@@ -0,0 +1,612 @@
+#ifndef LINMATH_H
+#define LINMATH_H
+
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#ifdef LINMATH_NO_INLINE
+#define LINMATH_H_FUNC static
+#else
+#define LINMATH_H_FUNC static inline
+#endif
+
+#define MAX(x, y) (((x) > (y)) ? (x) : (y))
+#define MIN(x, y) (((x) < (y)) ? (x) : (y))
+
+#define REPEAT_1(FN) FN(0)
+#define REPEAT_2(FN) REPEAT_1(FN) FN(1)
+#define REPEAT_3(FN) REPEAT_2(FN) FN(2)
+#define REPEAT_4(FN) REPEAT_3(FN) FN(3)
+
+#define add(i) r[i] = a[i] + b[i];
+#define set(i) r[i] = v;
+#define sub(i) r[i] = a[i] - b[i];
+#define scale(i) r[i] = v[i] * s;
+#define add_scale(i) r[i] = v[i] * s;
+#define dot(i) p += a[i] * b[i];
+#define min(i) r[i] = a[i] < b[i] ? a[i] : b[i];
+#define max(i) r[i] = a[i] > b[i] ? a[i] : b[i];
+#define dup(i) r[i] = src[i];
+
+#define LINMATH_H_DEFINE_VEC(n)                                                \
+  typedef float vec##n[n];                                                     \
+  LINMATH_H_FUNC void vec##n##_set(vec##n r, float const v) {                  \
+    REPEAT_##n(set);                                                           \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_add(vec##n r, vec##n const a, vec##n const b) { \
+    REPEAT_##n(add);                                                           \
+  }                                                                            \
+                                                                               \
+  LINMATH_H_FUNC void vec##n##_sub(vec##n r, vec##n const a, vec##n const b) { \
+    REPEAT_##n(sub);                                                           \
+  }                                                                            \
+                                                                               \
+  LINMATH_H_FUNC void vec##n##_scale(vec##n r, vec##n const v,                 \
+                                     float const s) {                          \
+    REPEAT_##n(scale);                                                         \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_add_scale(vec##n r, vec##n const v,             \
+                                         float const s) {                      \
+    REPEAT_##n(add_scale);                                                     \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_to_str(vec##n const v, char *b) {               \
+    strcat(b, "(");                                                            \
+    for (int i = 0; i < n; ++i) {                                              \
+      char s[20] = {0};                                                        \
+      sprintf(s, "%f, ", v[i]);                                                \
+      strcat(b, s);                                                            \
+    }                                                                          \
+    b[strlen(b) - 2] = '\0';                                                   \
+    strcat(b, ")");                                                            \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_print(vec##n const v) {                         \
+    char r[n * 20 + 5] = {0};                                                  \
+    vec##n##_to_str(v, r);                                                     \
+    strcat(r, "\n");                                                           \
+    printf("%s", r);                                                           \
+  }                                                                            \
+  LINMATH_H_FUNC float vec##n##_dot(vec##n const a, vec##n const b) {          \
+    float p = 0.f;                                                             \
+    REPEAT_##n(dot);                                                           \
+    return p;                                                                  \
+  }                                                                            \
+  LINMATH_H_FUNC float vec##n##_len(vec##n const v) {                          \
+    return sqrtf(vec##n##_dot(v, v));                                          \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_norm(vec##n r, vec##n const v) {                \
+    float k = 1.f / vec##n##_len(v);                                           \
+    vec##n##_scale(r, v, k);                                                   \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_min(vec##n r, vec##n const a, vec##n const b) { \
+    REPEAT_##n(min);                                                           \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_max(vec##n r, vec##n const a, vec##n const b) { \
+    REPEAT_##n(max);                                                           \
+  }                                                                            \
+  LINMATH_H_FUNC void vec##n##_dup(vec##n r, vec##n const src) {               \
+    REPEAT_##n(dup)                                                            \
+  }
+
+LINMATH_H_DEFINE_VEC(2)
+LINMATH_H_DEFINE_VEC(3)
+LINMATH_H_DEFINE_VEC(4)
+
+#undef set
+#undef add
+#undef sub
+#undef scale
+#undef add_scale
+#undef dot
+#undef min
+#undef max
+#undef dup
+
+LINMATH_H_FUNC void vec3_mul_cross(vec3 r, vec3 const a, vec3 const b) {
+  r[0] = a[1] * b[2] - a[2] * b[1];
+  r[1] = a[2] * b[0] - a[0] * b[2];
+  r[2] = a[0] * b[1] - a[1] * b[0];
+}
+
+LINMATH_H_FUNC void vec3_reflect(vec3 r, vec3 const v, vec3 const n) {
+  float p = 2.f * vec3_dot(v, n);
+  int i;
+  for (i = 0; i < 3; ++i)
+    r[i] = v[i] - p * n[i];
+}
+
+LINMATH_H_FUNC void vec4_mul_cross(vec4 r, vec4 const a, vec4 const b) {
+  r[0] = a[1] * b[2] - a[2] * b[1];
+  r[1] = a[2] * b[0] - a[0] * b[2];
+  r[2] = a[0] * b[1] - a[1] * b[0];
+  r[3] = 1.f;
+}
+
+LINMATH_H_FUNC void vec4_reflect(vec4 r, vec4 const v, vec4 const n) {
+  float p = 2.f * vec4_dot(v, n);
+  int i;
+  for (i = 0; i < 4; ++i)
+    r[i] = v[i] - p * n[i];
+}
+
+typedef vec4 mat4x4[4];
+
+LINMATH_H_FUNC void mat4x4_getPos(vec3 r, mat4x4 const M) {
+  r[0] = M[3][0];
+  r[1] = M[3][1];
+  r[2] = M[3][2];
+}
+
+LINMATH_H_FUNC void mat4x4_identity(mat4x4 M) {
+  int i, j;
+  for (i = 0; i < 4; ++i)
+    for (j = 0; j < 4; ++j)
+      M[i][j] = i == j ? 1.f : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_dup(mat4x4 M, mat4x4 const N) {
+  int i;
+  for (i = 0; i < 4; ++i)
+    vec4_dup(M[i], N[i]);
+}
+LINMATH_H_FUNC void mat4x4_row(vec4 r, mat4x4 const M, int i) {
+  int k;
+  for (k = 0; k < 4; ++k)
+    r[k] = M[k][i];
+}
+LINMATH_H_FUNC void mat4x4_col(vec4 r, mat4x4 const M, int i) {
+  int k;
+  for (k = 0; k < 4; ++k)
+    r[k] = M[i][k];
+}
+LINMATH_H_FUNC void mat4x4_transpose(mat4x4 M, mat4x4 const N) {
+  // Note: if M and N are the same, the user has to
+  // explicitly make a copy of M and set it to N.
+  int i, j;
+  for (j = 0; j < 4; ++j)
+    for (i = 0; i < 4; ++i)
+      M[i][j] = N[j][i];
+}
+LINMATH_H_FUNC void mat4x4_add(mat4x4 M, mat4x4 const a, mat4x4 const b) {
+  int i;
+  for (i = 0; i < 4; ++i)
+    vec4_add(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_sub(mat4x4 M, mat4x4 const a, mat4x4 const b) {
+  int i;
+  for (i = 0; i < 4; ++i)
+    vec4_sub(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_scale(mat4x4 M, mat4x4 const a, float k) {
+  int i;
+  for (i = 0; i < 4; ++i)
+    vec4_scale(M[i], a[i], k);
+}
+LINMATH_H_FUNC void mat4x4_scale_aniso(mat4x4 M, mat4x4 const a, float x,
+                                       float y, float z) {
+  vec4_scale(M[0], a[0], x);
+  vec4_scale(M[1], a[1], y);
+  vec4_scale(M[2], a[2], z);
+  vec4_dup(M[3], a[3]);
+}
+LINMATH_H_FUNC void mat4x4_mul(mat4x4 M, mat4x4 const a, mat4x4 const b) {
+  mat4x4 temp;
+  int k, r, c;
+  for (c = 0; c < 4; ++c)
+    for (r = 0; r < 4; ++r) {
+      temp[c][r] = 0.f;
+      for (k = 0; k < 4; ++k)
+        temp[c][r] += a[k][r] * b[c][k];
+    }
+  mat4x4_dup(M, temp);
+}
+LINMATH_H_FUNC void mat4x4_mul_vec4(vec4 r, mat4x4 const M, vec4 const v) {
+  int i, j;
+  for (j = 0; j < 4; ++j) {
+    r[j] = 0.f;
+    for (i = 0; i < 4; ++i)
+      r[j] += M[i][j] * v[i];
+  }
+}
+LINMATH_H_FUNC void mat4x4_translate(mat4x4 T, float x, float y, float z) {
+  mat4x4_identity(T);
+  T[3][0] = x;
+  T[3][1] = y;
+  T[3][2] = z;
+}
+LINMATH_H_FUNC void mat4x4_translate_in_place(mat4x4 M, float x, float y,
+                                              float z) {
+  vec4 t = {x, y, z, 0};
+  vec4 r;
+  int i;
+  for (i = 0; i < 4; ++i) {
+    mat4x4_row(r, M, i);
+    M[3][i] += vec4_dot(r, t);
+  }
+}
+LINMATH_H_FUNC void mat4x4_from_vec3_mul_outer(mat4x4 M, vec3 const a,
+                                               vec3 const b) {
+  int i, j;
+  for (i = 0; i < 4; ++i)
+    for (j = 0; j < 4; ++j)
+      M[i][j] = i < 3 && j < 3 ? a[i] * b[j] : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_rotate(mat4x4 R, mat4x4 const M, float x, float y,
+                                  float z, float angle) {
+  float s = sinf(angle);
+  float c = cosf(angle);
+  vec3 u = {x, y, z};
+
+  if (vec3_len(u) > 1e-4) {
+    vec3_norm(u, u);
+    mat4x4 T;
+    mat4x4_from_vec3_mul_outer(T, u, u);
+
+    mat4x4 S = {{0, u[2], -u[1], 0},
+                {-u[2], 0, u[0], 0},
+                {u[1], -u[0], 0, 0},
+                {0, 0, 0, 0}};
+    mat4x4_scale(S, S, s);
+
+    mat4x4 C;
+    mat4x4_identity(C);
+    mat4x4_sub(C, C, T);
+
+    mat4x4_scale(C, C, c);
+
+    mat4x4_add(T, T, C);
+    mat4x4_add(T, T, S);
+
+    T[3][3] = 1.f;
+    mat4x4_mul(R, M, T);
+  } else {
+    mat4x4_dup(R, M);
+  }
+}
+LINMATH_H_FUNC void mat4x4_rotate_X(mat4x4 Q, mat4x4 const M, float angle) {
+  float s = sinf(angle);
+  float c = cosf(angle);
+  mat4x4 R = {{1.f, 0.f, 0.f, 0.f},
+              {0.f, c, s, 0.f},
+              {0.f, -s, c, 0.f},
+              {0.f, 0.f, 0.f, 1.f}};
+  mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Y(mat4x4 Q, mat4x4 const M, float angle) {
+  float s = sinf(angle);
+  float c = cosf(angle);
+  mat4x4 R = {{c, 0.f, -s, 0.f},
+              {0.f, 1.f, 0.f, 0.f},
+              {s, 0.f, c, 0.f},
+              {0.f, 0.f, 0.f, 1.f}};
+  mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Z(mat4x4 Q, mat4x4 const M, float angle) {
+  float s = sinf(angle);
+  float c = cosf(angle);
+  mat4x4 R = {{c, s, 0.f, 0.f},
+              {-s, c, 0.f, 0.f},
+              {0.f, 0.f, 1.f, 0.f},
+              {0.f, 0.f, 0.f, 1.f}};
+  mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_invert(mat4x4 T, mat4x4 const M) {
+  float s[6];
+  float c[6];
+  s[0] = M[0][0] * M[1][1] - M[1][0] * M[0][1];
+  s[1] = M[0][0] * M[1][2] - M[1][0] * M[0][2];
+  s[2] = M[0][0] * M[1][3] - M[1][0] * M[0][3];
+  s[3] = M[0][1] * M[1][2] - M[1][1] * M[0][2];
+  s[4] = M[0][1] * M[1][3] - M[1][1] * M[0][3];
+  s[5] = M[0][2] * M[1][3] - M[1][2] * M[0][3];
+
+  c[0] = M[2][0] * M[3][1] - M[3][0] * M[2][1];
+  c[1] = M[2][0] * M[3][2] - M[3][0] * M[2][2];
+  c[2] = M[2][0] * M[3][3] - M[3][0] * M[2][3];
+  c[3] = M[2][1] * M[3][2] - M[3][1] * M[2][2];
+  c[4] = M[2][1] * M[3][3] - M[3][1] * M[2][3];
+  c[5] = M[2][2] * M[3][3] - M[3][2] * M[2][3];
+
+  /* Assumes it is invertible */
+  float idet = 1.0f / (s[0] * c[5] - s[1] * c[4] + s[2] * c[3] + s[3] * c[2] -
+                       s[4] * c[1] + s[5] * c[0]);
+
+  T[0][0] = (M[1][1] * c[5] - M[1][2] * c[4] + M[1][3] * c[3]) * idet;
+  T[0][1] = (-M[0][1] * c[5] + M[0][2] * c[4] - M[0][3] * c[3]) * idet;
+  T[0][2] = (M[3][1] * s[5] - M[3][2] * s[4] + M[3][3] * s[3]) * idet;
+  T[0][3] = (-M[2][1] * s[5] + M[2][2] * s[4] - M[2][3] * s[3]) * idet;
+
+  T[1][0] = (-M[1][0] * c[5] + M[1][2] * c[2] - M[1][3] * c[1]) * idet;
+  T[1][1] = (M[0][0] * c[5] - M[0][2] * c[2] + M[0][3] * c[1]) * idet;
+  T[1][2] = (-M[3][0] * s[5] + M[3][2] * s[2] - M[3][3] * s[1]) * idet;
+  T[1][3] = (M[2][0] * s[5] - M[2][2] * s[2] + M[2][3] * s[1]) * idet;
+
+  T[2][0] = (M[1][0] * c[4] - M[1][1] * c[2] + M[1][3] * c[0]) * idet;
+  T[2][1] = (-M[0][0] * c[4] + M[0][1] * c[2] - M[0][3] * c[0]) * idet;
+  T[2][2] = (M[3][0] * s[4] - M[3][1] * s[2] + M[3][3] * s[0]) * idet;
+  T[2][3] = (-M[2][0] * s[4] + M[2][1] * s[2] - M[2][3] * s[0]) * idet;
+
+  T[3][0] = (-M[1][0] * c[3] + M[1][1] * c[1] - M[1][2] * c[0]) * idet;
+  T[3][1] = (M[0][0] * c[3] - M[0][1] * c[1] + M[0][2] * c[0]) * idet;
+  T[3][2] = (-M[3][0] * s[3] + M[3][1] * s[1] - M[3][2] * s[0]) * idet;
+  T[3][3] = (M[2][0] * s[3] - M[2][1] * s[1] + M[2][2] * s[0]) * idet;
+}
+LINMATH_H_FUNC void mat4x4_orthonormalize(mat4x4 R, mat4x4 const M) {
+  mat4x4_dup(R, M);
+  float s = 1.f;
+  vec3 h;
+
+  vec3_norm(R[2], R[2]);
+
+  s = vec3_dot(R[1], R[2]);
+  vec3_scale(h, R[2], s);
+  vec3_sub(R[1], R[1], h);
+  vec3_norm(R[1], R[1]);
+
+  s = vec3_dot(R[0], R[2]);
+  vec3_scale(h, R[2], s);
+  vec3_sub(R[0], R[0], h);
+
+  s = vec3_dot(R[0], R[1]);
+  vec3_scale(h, R[1], s);
+  vec3_sub(R[0], R[0], h);
+  vec3_norm(R[0], R[0]);
+}
+
+LINMATH_H_FUNC void mat4x4_frustum(mat4x4 M, float l, float r, float b, float t,
+                                   float n, float f) {
+  M[0][0] = 2.f * n / (r - l);
+  M[0][1] = M[0][2] = M[0][3] = 0.f;
+
+  M[1][1] = 2.f * n / (t - b);
+  M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+  M[2][0] = (r + l) / (r - l);
+  M[2][1] = (t + b) / (t - b);
+  M[2][2] = -(f + n) / (f - n);
+  M[2][3] = -1.f;
+
+  M[3][2] = -2.f * (f * n) / (f - n);
+  M[3][0] = M[3][1] = M[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_ortho(mat4x4 M, float l, float r, float b, float t,
+                                 float n, float f) {
+  M[0][0] = 2.f / (r - l);
+  M[0][1] = M[0][2] = M[0][3] = 0.f;
+
+  M[1][1] = 2.f / (t - b);
+  M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+  M[2][2] = -2.f / (f - n);
+  M[2][0] = M[2][1] = M[2][3] = 0.f;
+
+  M[3][0] = -(r + l) / (r - l);
+  M[3][1] = -(t + b) / (t - b);
+  M[3][2] = -(f + n) / (f - n);
+  M[3][3] = 1.f;
+}
+LINMATH_H_FUNC void mat4x4_perspective(mat4x4 m, float y_fov, float aspect,
+                                       float n, float f) {
+  /* NOTE: Degrees are an unhandy unit to work with.
+   * linmath.h uses radians for everything! */
+  float const a = 1.f / tanf(y_fov / 2.f);
+
+  m[0][0] = a / aspect;
+  m[0][1] = 0.f;
+  m[0][2] = 0.f;
+  m[0][3] = 0.f;
+
+  m[1][0] = 0.f;
+  m[1][1] = a;
+  m[1][2] = 0.f;
+  m[1][3] = 0.f;
+
+  m[2][0] = 0.f;
+  m[2][1] = 0.f;
+  m[2][2] = -((f + n) / (f - n));
+  m[2][3] = -1.f;
+
+  m[3][0] = 0.f;
+  m[3][1] = 0.f;
+  m[3][2] = -((2.f * f * n) / (f - n));
+  m[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_look_at(mat4x4 m, vec3 const eye, vec3 const center,
+                                   vec3 const up) {
+  /* Adapted from Android's OpenGL Matrix.java.                        */
+  /* See the OpenGL GLUT documentation for gluLookAt for a description */
+  /* of the algorithm. We implement it in a straightforward way:       */
+
+  /* TODO: The negation of of can be spared by swapping the order of
+   *       operands in the following cross products in the right way. */
+  vec3 f;
+  vec3_sub(f, center, eye);
+  vec3_norm(f, f);
+
+  vec3 s;
+  vec3_mul_cross(s, f, up);
+  vec3_norm(s, s);
+
+  vec3 t;
+  vec3_mul_cross(t, s, f);
+
+  m[0][0] = s[0];
+  m[0][1] = t[0];
+  m[0][2] = -f[0];
+  m[0][3] = 0.f;
+
+  m[1][0] = s[1];
+  m[1][1] = t[1];
+  m[1][2] = -f[1];
+  m[1][3] = 0.f;
+
+  m[2][0] = s[2];
+  m[2][1] = t[2];
+  m[2][2] = -f[2];
+  m[2][3] = 0.f;
+
+  m[3][0] = 0.f;
+  m[3][1] = 0.f;
+  m[3][2] = 0.f;
+  m[3][3] = 1.f;
+
+  mat4x4_translate_in_place(m, -eye[0], -eye[1], -eye[2]);
+}
+
+typedef float quat[4];
+#define quat_add vec4_add
+#define quat_sub vec4_sub
+#define quat_norm vec4_norm
+#define quat_scale vec4_scale
+#define quat_dot vec4_dot
+
+LINMATH_H_FUNC void quat_identity(quat q) {
+  q[0] = q[1] = q[2] = 0.f;
+  q[3] = 1.f;
+}
+LINMATH_H_FUNC void quat_mul(quat r, quat const p, quat const q) {
+  vec3 w, tmp;
+
+  vec3_mul_cross(tmp, p, q);
+  vec3_scale(w, p, q[3]);
+  vec3_add(tmp, tmp, w);
+  vec3_scale(w, q, p[3]);
+  vec3_add(tmp, tmp, w);
+
+  vec3_dup(r, tmp);
+  r[3] = p[3] * q[3] - vec3_dot(p, q);
+}
+LINMATH_H_FUNC void quat_conj(quat r, quat const q) {
+  int i;
+  for (i = 0; i < 3; ++i)
+    r[i] = -q[i];
+  r[3] = q[3];
+}
+LINMATH_H_FUNC void quat_rotate(quat r, float angle, vec3 const axis) {
+  vec3 axis_norm;
+  vec3_norm(axis_norm, axis);
+  float s = sinf(angle / 2);
+  float c = cosf(angle / 2);
+  vec3_scale(r, axis_norm, s);
+  r[3] = c;
+}
+LINMATH_H_FUNC void quat_mul_vec3(vec3 r, quat const q, vec3 const v) {
+  /*
+   * Method by Fabian 'ryg' Giessen (of Farbrausch)
+  t = 2 * cross(q.xyz, v)
+  v' = v + q.w * t + cross(q.xyz, t)
+   */
+  vec3 t;
+  vec3 q_xyz = {q[0], q[1], q[2]};
+  vec3 u = {q[0], q[1], q[2]};
+
+  vec3_mul_cross(t, q_xyz, v);
+  vec3_scale(t, t, 2);
+
+  vec3_mul_cross(u, q_xyz, t);
+  vec3_scale(t, t, q[3]);
+
+  vec3_add(r, v, t);
+  vec3_add(r, r, u);
+}
+LINMATH_H_FUNC void mat4x4_from_quat(mat4x4 M, quat const q) {
+  float a = q[3];
+  float b = q[0];
+  float c = q[1];
+  float d = q[2];
+  float a2 = a * a;
+  float b2 = b * b;
+  float c2 = c * c;
+  float d2 = d * d;
+
+  M[0][0] = a2 + b2 - c2 - d2;
+  M[0][1] = 2.f * (b * c + a * d);
+  M[0][2] = 2.f * (b * d - a * c);
+  M[0][3] = 0.f;
+
+  M[1][0] = 2 * (b * c - a * d);
+  M[1][1] = a2 - b2 + c2 - d2;
+  M[1][2] = 2.f * (c * d + a * b);
+  M[1][3] = 0.f;
+
+  M[2][0] = 2.f * (b * d + a * c);
+  M[2][1] = 2.f * (c * d - a * b);
+  M[2][2] = a2 - b2 - c2 + d2;
+  M[2][3] = 0.f;
+
+  M[3][0] = M[3][1] = M[3][2] = 0.f;
+  M[3][3] = 1.f;
+}
+
+LINMATH_H_FUNC void mat4x4o_mul_quat(mat4x4 R, mat4x4 const M, quat const q) {
+  /*  XXX: The way this is written only works for orthogonal matrices. */
+  /* TODO: Take care of non-orthogonal case. */
+  quat_mul_vec3(R[0], q, M[0]);
+  quat_mul_vec3(R[1], q, M[1]);
+  quat_mul_vec3(R[2], q, M[2]);
+
+  R[3][0] = R[3][1] = R[3][2] = 0.f;
+  R[0][3] = M[0][3];
+  R[1][3] = M[1][3];
+  R[2][3] = M[2][3];
+  R[3][3] = M[3][3]; // typically 1.0, but here we make it general
+}
+LINMATH_H_FUNC void quat_from_mat4x4(quat q, mat4x4 const M) {
+  float r = 0.f;
+  int i;
+
+  int perm[] = {0, 1, 2, 0, 1};
+  int *p = perm;
+
+  for (i = 0; i < 3; i++) {
+    float m = M[i][i];
+    if (m < r)
+      continue;
+    m = r;
+    p = &perm[i];
+  }
+
+  r = sqrtf(1.f + M[p[0]][p[0]] - M[p[1]][p[1]] - M[p[2]][p[2]]);
+
+  if (r < 1e-6) {
+    q[0] = 1.f;
+    q[1] = q[2] = q[3] = 0.f;
+    return;
+  }
+
+  q[0] = r / 2.f;
+  q[1] = (M[p[0]][p[1]] - M[p[1]][p[0]]) / (2.f * r);
+  q[2] = (M[p[2]][p[0]] - M[p[0]][p[2]]) / (2.f * r);
+  q[3] = (M[p[2]][p[1]] - M[p[1]][p[2]]) / (2.f * r);
+}
+
+LINMATH_H_FUNC void mat4x4_arcball(mat4x4 R, mat4x4 const M, vec2 const _a,
+                                   vec2 const _b, float s) {
+  vec2 a;
+  memcpy(a, _a, sizeof(a));
+  vec2 b;
+  memcpy(b, _b, sizeof(b));
+
+  float z_a = 0.;
+  float z_b = 0.;
+
+  if (vec2_len(a) < 1.) {
+    z_a = sqrtf(1. - vec2_dot(a, a));
+  } else {
+    vec2_norm(a, a);
+  }
+
+  if (vec2_len(b) < 1.) {
+    z_b = sqrtf(1. - vec2_dot(b, b));
+  } else {
+    vec2_norm(b, b);
+  }
+
+  vec3 a_ = {a[0], a[1], z_a};
+  vec3 b_ = {b[0], b[1], z_b};
+
+  vec3 c_;
+  vec3_mul_cross(c_, a_, b_);
+
+  float const angle = acos(vec3_dot(a_, b_)) * s;
+  mat4x4_rotate(R, M, c_[0], c_[1], c_[2], angle);
+}
+#endif
--- a/src/main.c
+++ b/src/main.c
@@ -0,0 +1,174 @@
+#include "gameObjs.h"
+#include "linmath.h"
+#include "renderer.h"
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <time.h>
+#include <unistd.h>
+
+#define PI 3.141592653589793f
+#define WIDTH 512
+#define HEIGHT 512
+#define PIX_COUNT (WIDTH * HEIGHT)
+
+volatile sig_atomic_t stop = 0;
+struct termios oldt;
+void handle_sigint(int sig) { stop = 1; }
+
+void restore_terminal() {
+  tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
+  printf("\033[?1049l");
+}
+static char encoding_table[] = {
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+    'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+    'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
+
+void base64encode(render_target *t, char *buff) {
+  for (int i = 0; i < PIX_COUNT * 4; i += 4) {
+    uint8_t r = t->pixels[i];
+    uint8_t g = t->pixels[i + 1];
+    uint8_t b = t->pixels[i + 2];
+    int s = 0;
+    s |= r << 16;
+    s |= g << 8;
+    s |= b;
+
+    buff[i] = encoding_table[s >> 18];
+    s &= 0777777;
+    buff[i + 1] = encoding_table[s >> 12];
+    s &= 07777;
+    buff[i + 2] = encoding_table[s >> 6];
+    s &= 077;
+    buff[i + 3] = encoding_table[s];
+  }
+}
+
+void setupKeyboard() {
+
+  struct termios newt;
+
+  // Save original terminal settings
+  if (tcgetattr(STDIN_FILENO, &oldt) == -1) {
+    perror("tcgetattr failed");
+    exit(1);
+  }
+
+  // Copy old settings to newt
+  newt = oldt;
+
+  // Disable canonical mode (ICANON) and echo (ECHO)
+  newt.c_lflag &= ~(ICANON | ECHO);
+  newt.c_cc[VMIN] = 0;  // minimum bytes
+  newt.c_cc[VTIME] = 0; // timeout (0 = no wait)
+
+  // Apply new settings
+  if (tcsetattr(STDIN_FILENO, TCSANOW, &newt) == -1) {
+    perror("tcsetattr failed");
+    exit(1);
+  }
+}
+
+void printImage(char *buff) {
+  int buffSize = PIX_COUNT * 4;
+  int start = 0;
+  int chunkSize = MIN(4096, buffSize - start);
+  int notLast = start < buffSize - 4096;
+
+  printf("\033_Gf=24,s=%d,v=%d,a=T,t=d,m=%d;%.*s\033\\", HEIGHT, WIDTH, notLast,
+         chunkSize, buff);
+  start += 4096;
+  while (start < buffSize) {
+    notLast = start < buffSize - 4096;
+    int chunkSize = MIN(4096, buffSize - start);
+    printf("\033_Gm=%d;%.*s\033\\", notLast, chunkSize, buff + start);
+    start += 4096;
+  }
+  printf("\n");
+}
+
+int main(void) {
+  signal(SIGINT, handle_sigint);
+  printf("\033[?1049h\n");
+
+  setupKeyboard();
+
+  render_target target = {WIDTH, HEIGHT, malloc(PIX_COUNT * 4)};
+  clearTarget(&target);
+
+  vec4 *buffer = malloc(vertBufferSize());
+  mat4x4 projMat = {};
+  mat4x4 viewMat = {};
+  mat4x4 drawMat = {};
+  mat4x4_identity(viewMat);
+  mat4x4_perspective(projMat, 45.0 / 180.0 * PI, 1, 2.f, 20.0f);
+
+  const int buffSize = PIX_COUNT * 4;
+
+  char *encodeBuff = malloc(buffSize);
+  memset(encodeBuff, 0, buffSize);
+  char lastKey;
+
+  clock_t start = clock();
+  clock_t now = clock();
+  clock_t renderC;
+
+  float deltaTime; // in seconds
+
+  while (!stop) {
+    now = clock();
+    deltaTime = ((float)(now - start)) / CLOCKS_PER_SEC;
+    start = now;
+    printf("total time: %fms\n", deltaTime * 1000);
+    printf("render time: %fms\n", ((float)renderC) / (0.001 * CLOCKS_PER_SEC));
+
+    if (read(STDIN_FILENO, &lastKey, 1) == -1) {
+      perror("read failed");
+      stop = 1;
+      continue;
+    }
+
+    switch (lastKey) {
+    case 'w':
+      rocket.velocity[1] = (rocket.velocity[1] * 0.9 + 20 * 0.1);
+      break;
+    case 's':
+      mat4x4_translate_in_place(viewMat, 0, 0, 0.2);
+      break;
+    case 'a':
+      mat4x4_translate_in_place(viewMat, -0.2, 0, 0);
+      break;
+    case 'd':
+      mat4x4_translate_in_place(viewMat, 0.2, 0, 0);
+      break;
+    }
+
+    lastKey = 0;
+
+    rocket.velocity[1] +=
+        (-4.0f + 0.5 * powf(MIN(rocket.velocity[1], 0.0), 2.0f)) * deltaTime;
+
+    mat4x4_translate_in_place(rocket.transform, rocket.velocity[0] * deltaTime,
+                              rocket.velocity[1] * deltaTime,
+                              rocket.velocity[2] * deltaTime);
+    // mat4x4_translate_in_place(viewMat, 0, 0, .1);
+    mat4x4_mul(drawMat, projMat, rocket.transform);
+    clearTarget(&target);
+    renderC = clock();
+    render(&target, &rocket.model, &drawMat, buffer);
+    renderC = clock() - renderC;
+
+    base64encode(&target, encodeBuff);
+    printf("\033[H");
+    printImage(encodeBuff);
+    printf("\033[J");
+  }
+
+  restore_terminal();
+}
--- a/src/models/plane.h
+++ b/src/models/plane.h
@@ -0,0 +1,355 @@
+#include "../renderer.h"
+const model testModel = {
+    (vec3[]){
+        {0.698513, 0.757563, 0.000000},    {0.044645, 2.825787, 0.000000},
+        {0.656388, 0.757563, 0.238906},    {0.041953, 2.825787, 0.015270},
+        {0.535092, 0.757563, 0.448996},    {0.034200, 2.825787, 0.028697},
+        {0.349257, 0.757563, 0.604930},    {0.022323, 2.825787, 0.038664},
+        {0.121296, 0.757563, 0.687901},    {0.007753, 2.825787, 0.043967},
+        {-0.121296, 0.757563, 0.687901},   {-0.007753, 2.825787, 0.043967},
+        {-0.349257, 0.757563, 0.604930},   {-0.022323, 2.825787, 0.038664},
+        {-0.535092, 0.757563, 0.448996},   {-0.034200, 2.825787, 0.028697},
+        {-0.656388, 0.757563, 0.238906},   {-0.041953, 2.825787, 0.015270},
+        {-0.698513, 0.757563, -0.000000},  {-0.044645, 2.825787, 0.000000},
+        {-0.656388, 0.757563, -0.238906},  {-0.041953, 2.825787, -0.015270},
+        {-0.535092, 0.757563, -0.448996},  {-0.034200, 2.825787, -0.028697},
+        {-0.349257, 0.757563, -0.604930},  {-0.022323, 2.825787, -0.038664},
+        {-0.121296, 0.757563, -0.687901},  {-0.007753, 2.825787, -0.043967},
+        {0.121296, 0.757563, -0.687901},   {0.007753, 2.825787, -0.043967},
+        {0.349257, 0.757563, -0.604930},   {0.022323, 2.825787, -0.038664},
+        {0.535092, 0.757563, -0.448996},   {0.034200, 2.825787, -0.028697},
+        {0.656388, 0.757563, -0.238906},   {0.041953, 2.825787, -0.015269},
+        {0.544639, 2.240545, 0.000000},    {0.511793, 2.240545, 0.186277},
+        {0.409479, 2.128906, 0.371044},    {0.290178, 2.227410, 0.470774},
+        {0.100778, 2.227410, 0.539710},    {-0.100778, 2.227410, 0.539710},
+        {-0.290178, 2.227410, 0.470774},   {-0.409479, 2.128906, 0.371044},
+        {-0.511793, 2.240545, 0.186277},   {-0.544639, 2.240545, -0.000000},
+        {-0.511793, 2.240545, -0.186277},  {-0.417217, 2.240545, -0.350087},
+        {-0.272319, 2.240545, -0.471671},  {-0.094576, 2.240545, -0.536364},
+        {0.094576, 2.240545, -0.536364},   {0.272319, 2.240545, -0.471671},
+        {0.417218, 2.240545, -0.350087},   {0.511793, 2.240545, -0.186277},
+        {0.694426, 1.474881, 0.252751},    {0.527394, 1.631239, 0.497527},
+        {0.367433, 1.488016, 0.632126},    {0.127608, 1.488016, 0.719415},
+        {-0.127608, 1.488016, 0.719415},   {-0.367433, 1.488016, 0.632126},
+        {-0.527394, 1.631239, 0.497527},   {-0.694426, 1.474881, 0.252751},
+        {-0.738993, 1.474881, -0.000000},  {-0.694426, 1.474881, -0.252751},
+        {-0.566102, 1.474881, -0.475016},  {-0.369497, 1.474881, -0.639987},
+        {-0.128325, 1.474881, -0.727766},  {0.128325, 1.474881, -0.727766},
+        {0.369497, 1.474881, -0.639987},   {0.566102, 1.474881, -0.475016},
+        {0.694426, 1.474881, -0.252751},   {0.738993, 1.474881, 0.000000},
+        {0.410385, -0.154204, 0.000000},   {0.385635, -0.154204, 0.140360},
+        {0.314373, -0.154204, 0.263790},   {0.205192, -0.154204, 0.355403},
+        {0.071263, -0.154204, 0.404150},   {-0.071263, -0.154204, 0.404150},
+        {-0.205192, -0.154204, 0.355403},  {-0.314373, -0.154204, 0.263790},
+        {-0.385635, -0.154204, 0.140360},  {-0.410385, -0.154204, -0.000000},
+        {-0.385635, -0.154204, -0.140360}, {-0.314373, -0.154204, -0.263790},
+        {-0.205192, -0.154204, -0.355403}, {-0.071263, -0.154204, -0.404150},
+        {0.071263, -0.154204, -0.404150},  {0.205192, -0.154204, -0.355403},
+        {0.314373, -0.154204, -0.263790},  {0.385635, -0.154204, -0.140360},
+        {0.237705, 2.675272, 0.000000},    {0.223370, 2.675272, 0.081300},
+        {0.182093, 2.675272, 0.152794},    {0.118853, 2.675272, 0.205859},
+        {0.041277, 2.675272, 0.234094},    {-0.041277, 2.675272, 0.234094},
+        {-0.118853, 2.675272, 0.205859},   {-0.182093, 2.675272, 0.152794},
+        {-0.223370, 2.675272, 0.081300},   {-0.237705, 2.675272, -0.000000},
+        {-0.223370, 2.675272, -0.081300},  {-0.182093, 2.675272, -0.152794},
+        {-0.118853, 2.675272, -0.205859},  {-0.041277, 2.675272, -0.234094},
+        {0.041277, 2.675272, -0.234094},   {0.118853, 2.675272, -0.205859},
+        {0.182093, 2.675272, -0.152794},   {0.223370, 2.675272, -0.081300},
+        {0.046326, 2.839588, 0.000000},    {-0.023163, 2.839588, -0.040120},
+        {-0.023163, 2.839588, 0.040120},   {0.000000, 3.137896, 0.000000},
+        {-0.272319, 2.240545, 0.471671},   {-0.417218, 2.141971, 0.350087},
+        {-0.094576, 2.240545, 0.536364},   {0.094576, 2.240545, 0.536364},
+        {0.272319, 2.240545, 0.471671},    {0.417217, 2.141971, 0.350087},
+        {0.566102, 1.618174, 0.475016},    {-0.566102, 1.618174, 0.475016},
+        {0.369497, 1.474881, 0.639987},    {0.128325, 1.474881, 0.727766},
+        {-0.128325, 1.474881, 0.727766},   {-0.369497, 1.474881, 0.639987},
+        {0.237002, 2.117707, 0.625731},    {0.257333, 1.652925, 0.728921},
+        {0.082310, 2.117707, 0.682034},    {0.089371, 1.652925, 0.766453},
+        {-0.082310, 2.117707, 0.682034},   {-0.089371, 1.652925, 0.766453},
+        {-0.237002, 2.117707, 0.625731},   {-0.257333, 1.652925, 0.728921},
+        {-0.334441, 2.019176, 0.544276},   {0.334441, 2.019176, 0.544276},
+        {0.369362, 1.735177, 0.671046},    {-0.369362, 1.735177, 0.671046},
+        {0.096339, 2.201041, 0.616476},    {-0.096339, 2.201041, 0.616476},
+        {0.489408, 1.656222, 0.539235},    {0.391442, 2.102530, 0.455240},
+        {0.118417, 1.527654, 0.730721},    {-0.118417, 1.527654, 0.730721},
+        {-0.489408, 1.656222, 0.539235},   {-0.391442, 2.102530, 0.455240},
+        {0.277396, 2.201041, 0.550577},    {-0.340969, 1.527654, 0.655392},
+        {-0.277396, 2.201041, 0.550577},   {0.340969, 1.527654, 0.655392}},
+    (int[]){
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+        131, 131, 129, 129, 126, 126, 129, 129, 127, 127, 125, 125, 126, 126,
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+        129, 129, 125, 125, 124, 124, 126, 126, 134, 134, 133, 133, 124, 124,
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+        138, 138, 134, 134, 144, 144, 124, 124, 133, 133, 145, 145, 131, 131,
+        135, 135, 137, 137, 146, 146, 130, 130, 140, 140, 147, 147, 125, 125,
+        57,  57,  56,  56,  147, 147, 41,  41,  42,  42,  146, 146, 59,  59,
+        145, 145, 142, 142, 39,  39,  144, 144, 139, 139, 56,  56,  55,  55,
+        138, 138, 42,  42,  43,  43,  143, 143, 58,  58,  141, 141, 145, 145,
+        55,  55,  38,  38,  139, 139, 41,  41,  137, 137, 136, 136, 57,  57,
+        140, 140, 141, 141, 60,  60,  142, 142, 143, 143, 40,  40,  136, 136,
+        144, 144},
+    (vec3[]){{0.9841, -0.1778, -0.0000},  {0.9146, 0.4043, -0.0000},
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+             {0.7540, -0.1768, 0.6327},   {0.4942, 0.7357, 0.4632},
+             {0.4920, -0.1778, 0.8522},   {0.3013, 0.7980, 0.5219},
+             {0.1709, -0.1778, 0.9691},   {0.1541, 0.7357, 0.6596},
+             {-0.1709, -0.1778, 0.9691},  {-0.1010, 0.5378, 0.8370},
+             {-0.4920, -0.1778, 0.8522},  {-0.4573, 0.4043, 0.7921},
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+             {-0.9247, -0.1778, 0.3366},  {-0.6483, 0.7357, 0.1964},
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+             {-0.9247, -0.1778, -0.3366}, {-0.6483, 0.7357, -0.1964},
+             {-0.7538, -0.1778, -0.6325}, {-0.6743, 0.5378, -0.5060},
+             {-0.4920, -0.1778, -0.8522}, {-0.4573, 0.4043, -0.7921},
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+             {-0.6347, 0.1973, 0.7472},   {-0.9423, 0.0728, 0.3267},
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+             {-0.1729, 0.0944, -0.9804},  {0.1729, 0.0944, -0.9804},
+             {0.4978, 0.0944, -0.8622},   {0.7626, 0.0944, -0.6399},
+             {0.9355, 0.0944, -0.3405},   {0.9955, 0.0944, -0.0000},
+             {0.6306, -0.7761, -0.0000},  {0.5926, -0.7761, 0.2157},
+             {0.4830, -0.7761, 0.4053},   {0.3153, -0.7761, 0.5461},
+             {0.1095, -0.7761, 0.6210},   {-0.1095, -0.7761, 0.6210},
+             {-0.3153, -0.7761, 0.5461},  {-0.4831, -0.7761, 0.4053},
+             {-0.5925, -0.7761, 0.2157},  {-0.6306, -0.7761, -0.0000},
+             {-0.5925, -0.7761, -0.2157}, {-0.4831, -0.7761, -0.4053},
+             {-0.3153, -0.7761, -0.5461}, {-0.1095, -0.7761, -0.6210},
+             {0.1095, -0.7761, -0.6210},  {0.3153, -0.7761, -0.5461},
+             {0.4830, -0.7761, -0.4053},  {0.5925, -0.7761, -0.2157},
+             {0.7312, 0.6821, -0.0000},   {0.6871, 0.6821, 0.2501},
+             {0.5656, 0.6745, 0.4746},    {0.3656, 0.6821, 0.6333},
+             {0.1270, 0.6821, 0.7201},    {-0.1270, 0.6821, 0.7201},
+             {-0.3656, 0.6821, 0.6333},   {-0.5656, 0.6745, 0.4746},
+             {-0.6871, 0.6821, 0.2501},   {-0.7312, 0.6821, -0.0000},
+             {-0.6871, 0.6821, -0.2501},  {-0.5601, 0.6821, -0.4700},
+             {-0.3656, 0.6821, -0.6333},  {-0.1270, 0.6821, -0.7201},
+             {0.1270, 0.6821, -0.7201},   {0.3656, 0.6821, -0.6333},
+             {0.5601, 0.6821, -0.4700},   {0.6871, 0.6821, -0.2501},
+             {0.9437, 0.3307, -0.0000},   {-0.4719, 0.3307, -0.8173},
+             {-0.4719, 0.3307, 0.8173},   {-0.0000, 1.0000, -0.0000},
+             {-0.4787, 0.5258, 0.7031},   {-0.7169, 0.4126, 0.5620},
+             {-0.1342, 0.4369, 0.8895},   {0.1342, 0.4369, 0.8895},
+             {0.4787, 0.5258, 0.7031},    {0.7169, 0.4126, 0.5620},
+             {0.7577, 0.1650, 0.6315},    {-0.7577, 0.1650, 0.6315},
+             {0.4534, 0.1969, 0.8693},    {0.1663, 0.2444, 0.9553},
+             {-0.1663, 0.2444, 0.9553},   {-0.4534, 0.1969, 0.8693},
+             {0.4906, 0.3661, 0.7907},    {0.3424, -0.0553, 0.9379},
+             {0.1431, 0.4003, 0.9051},    {0.1012, -0.0377, 0.9942},
+             {-0.1431, 0.4003, 0.9051},   {-0.1012, -0.0377, 0.9942},
+             {-0.4906, 0.3661, 0.7907},   {-0.3424, -0.0553, 0.9379},
+             {-0.7362, 0.2805, 0.6159},   {0.7362, 0.2805, 0.6159},
+             {0.6174, 0.1400, 0.7741},    {-0.6174, 0.1400, 0.7741},
+             {0.1165, 0.7887, 0.6037},    {-0.1165, 0.7887, 0.6037},
+             {0.7537, 0.0880, 0.6512},    {0.8090, 0.3734, 0.4541},
+             {0.1400, -0.2577, 0.9560},   {-0.1400, -0.2577, 0.9560},
+             {-0.7537, 0.0880, 0.6512},   {-0.8090, 0.3734, 0.4541},
+             {0.5043, 0.6625, 0.5539},    {-0.4814, -0.2028, 0.8527},
+             {-0.5043, 0.6625, 0.5539},   {0.4814, -0.2028, 0.8527}},
+    (vec3[]){{0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.8556, 0.8746, 1.0000}, {0.8556, 0.8746, 1.0000},
+             {0.8556, 0.8746, 1.0000}, {0.8556, 0.8746, 1.0000},
+             {0.8556, 0.8746, 1.0000}, {0.8556, 0.8746, 1.0000},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.8556, 0.8746, 1.0000},
+             {0.8556, 0.8746, 1.0000}, {0.8556, 0.8746, 1.0000},
+             {0.8556, 0.8746, 1.0000}, {0.8556, 0.8746, 1.0000},
+             {0.8556, 0.8746, 1.0000}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.9696, 1.0000, 0.0000}, {0.9695, 0.9999, 0.0005},
+             {0.9696, 1.0000, 0.0000}, {0.9696, 1.0000, 0.0000},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.0000, 0.4470, 0.0334}, {0.0000, 0.4470, 0.0334},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900},
+             {0.1450, 0.1371, 0.1900}, {0.1450, 0.1371, 0.1900}},
+    148,
+    1752,
+    20.f};
--- a/src/polygon.h
+++ b/src/polygon.h
@@ -0,0 +1,83 @@
+
+#ifndef POLYGON_H
+#define POLYGON_H
+
+#include "linmath.h"
+
+typedef struct {
+    vec3 points[3];
+    vec3 colors[3];
+    vec3 normals[3];
+
+    vec3 barycentrics;
+    float baryFactor;
+
+    float dot00;
+    float dot01;
+    float dot11;
+    float v0[2];
+    vec2 v1;
+
+    float bounding[4]; // min x, max x, min y, max y
+
+} polygon;
+
+void preCalc(polygon *p) {
+
+    p->v0[0] = p->points[2][0] - p->points[0][0];
+    p->v0[1] = p->points[2][1] - p->points[0][1];
+
+    p->v1[0] = p->points[1][0] - p->points[0][0];
+    p->v1[1] = p->points[1][1] - p->points[0][1];
+
+    p->dot00 = vec3_dot(p->v0, p->v0);
+    p->dot01 = vec3_dot(p->v1, p->v0);
+    p->dot11 = vec3_dot(p->v1, p->v1);
+
+    p->baryFactor = 1.0f / (p->dot00 * p->dot11 - p->dot01 * p->dot01);
+
+    p->bounding[0] = p->points[0][0];
+    p->bounding[1] = p->points[0][0];
+    p->bounding[2] = p->points[0][1];
+    p->bounding[3] = p->points[0][1];
+    for (int i = 1; i < 3; i++) {
+        if (p->bounding[0] > p->points[i][0])
+            p->bounding[0] = p->points[i][0];
+        if (p->bounding[1] < p->points[i][0])
+            p->bounding[1] = p->points[i][0];
+        if (p->bounding[2] > p->points[i][1])
+            p->bounding[2] = p->points[i][1];
+        if (p->bounding[3] < p->points[i][1])
+            p->bounding[3] = p->points[i][1];
+    }
+}
+
+void calcBarycentric(polygon *p, vec3 s) {
+
+    vec2 v2 = {s[0] - p->points[0][0], s[1] - p->points[0][1]};
+    float dot02 = vec3_dot(p->v0, v2);
+    float dot12 = vec3_dot(p->v1, v2);
+
+    p->barycentrics[0] = (p->dot11 * dot02 - p->dot01 * dot12) * p->baryFactor;
+    p->barycentrics[1] = (p->dot00 * dot12 - p->dot01 * dot02) * p->baryFactor;
+
+    p->barycentrics[2] = 1.f - p->barycentrics[1] - p->barycentrics[0];
+}
+void calcNormal(vec3 d, polygon *p) {
+    vec3_scale(d, p->normals[0], p->barycentrics[0]);
+    vec3_add_scale(d, p->normals[1], p->barycentrics[1]);
+    vec3_add_scale(d, p->normals[2], p->barycentrics[2]);
+}
+
+void calcColor(vec3 d, polygon *p) {
+    vec3_scale(d, p->colors[0], p->barycentrics[0]);
+    vec3_add_scale(d, p->colors[1], p->barycentrics[1]);
+    vec3_add_scale(d, p->colors[2], p->barycentrics[2]);
+}
+
+float calcDepth(polygon *p) {
+    return p->points[0][0] * p->barycentrics[0] +
+           p->points[1][0] * p->barycentrics[1] +
+           p->points[2][0] * p->barycentrics[2];
+}
+#endif
--- a/src/quick.h
+++ b/src/quick.h
@@ -0,0 +1,8 @@
+#ifndef QUICK_H
+#define QUICK_H
+
+struct vec3 {
+    int i[3];
+};
+
+#endif
--- a/src/renderer.h
+++ b/src/renderer.h
@@ -0,0 +1,222 @@
+#ifndef RENDERER_H
+#define RENDERER_H
+
+#include "linmath.h"
+#include "rendertarget.h"
+
+typedef struct {
+  vec3 *verts;
+  int *index;
+  vec3 *normals;
+  vec3 *color;
+  int vert_size;
+  int index_size;
+  float shininess;
+} model;
+
+typedef struct {
+  vec4 *points[3];
+  float dot00;
+  float dot01;
+  float dot11;
+  vec2 v0;
+  vec2 v1;
+  vec3 norm;
+  float baryFactor;
+  float bounding[4]; // min x, max x, min y, max y
+
+  vec3 barycentrics;
+} polygon;
+
+// model static inline create_model(vec3 *verts, int *index, int vert_size,
+//                                  int index_size) {
+//   model m = {verts, 0, 0, index, vert_size, index_size};
+//   // printf("%f\n", verts[0][0]);
+//   vec3_print(verts[0]);
+//   return m;
+// };
+//
+const vec3 lightDir = {0.707, 0.707, 0.0f};
+
+void initPoly(polygon *p) {
+  vec4 **points = p->points;
+  float *bounding = p->bounding;
+
+  // vec2_sub(p->v0, *points[2], *points[0]);
+  // vec2_sub(p->v1, *points[1], *points[0]);
+
+  vec3 v0 = {};
+  vec3 v1 = {};
+  vec3_sub(v0, *points[2], *points[0]);
+  vec3_sub(v1, *points[1], *points[0]);
+
+  vec3_mul_cross(p->norm, v0, v1);
+
+  vec2_dup(p->v0, v0);
+  vec2_dup(p->v1, v1);
+
+  p->dot00 = vec2_dot(p->v0, p->v0);
+  p->dot01 = vec2_dot(p->v0, p->v1);
+  p->dot11 = vec2_dot(p->v1, p->v1);
+
+  p->baryFactor = 1.0f / (p->dot00 * p->dot11 - p->dot01 * p->dot01);
+
+  bounding[0] = (*points[0])[0];
+  bounding[1] = (*points[0])[0];
+  bounding[2] = (*points[0])[1];
+  bounding[3] = (*points[0])[1];
+
+  for (int i = 1; i < 3; i++) {
+    if (bounding[0] > (*points[i])[0])
+      bounding[0] = (*points[i])[0];
+    if (bounding[1] < (*points[i])[0])
+      bounding[1] = (*points[i])[0];
+    if (bounding[2] > (*points[i])[1])
+      bounding[2] = (*points[i])[1];
+    if (bounding[3] < (*points[i])[1])
+      bounding[3] = (*points[i])[1];
+  }
+}
+
+void calcBarycentrics(polygon *p, vec2 s, vec3 r) {
+  vec2 v2 = {};
+  vec2_sub(v2, s, *p->points[0]);
+
+  float dot02 = vec2_dot(p->v0, v2);
+  float dot12 = vec2_dot(p->v1, v2);
+
+  r[2] = p->dot11 * dot02 - p->dot01 * dot12;
+  r[1] = p->dot00 * dot12 - p->dot01 * dot02;
+  vec3_scale(r, r, p->baryFactor);
+  r[0] = 1.f - r[1] - r[2];
+}
+
+float fApplyBary(const vec3 bary, float a, float b, float c) {
+  return bary[0] * a + bary[1] * b + bary[2] * c;
+}
+
+void vApplyBary(const vec3 bary, const vec3 a, const vec3 b, const vec3 c,
+                vec3 dst) {
+  vec3 tmp = {};
+  dst[0] = 0;
+  dst[1] = 0;
+  dst[2] = 0;
+  vec3_scale(tmp, a, bary[0]);
+  vec3_add(dst, dst, tmp);
+  vec3_scale(tmp, b, bary[1]);
+  vec3_add(dst, dst, tmp);
+  vec3_scale(tmp, c, bary[2]);
+  vec3_add(dst, dst, tmp);
+}
+
+void render(render_target *target, const model *model, mat4x4 *matrix,
+            vec4 *buffer) {
+
+  vec4 tmp = {};
+
+  for (int i = 0; i < model->vert_size; i++) {
+    tmp[0] = model->verts[i][0];
+    tmp[1] = model->verts[i][1];
+    tmp[2] = model->verts[i][2];
+    tmp[3] = 1.0f;
+
+    mat4x4_mul_vec4(buffer[i], *matrix, tmp);
+
+    vec4_scale(buffer[i], buffer[i], 1.0 / buffer[i][3]);
+    // vec4_print(buffer[i]);
+  }
+
+  polygon p = {};
+
+  vec3 *normals[3] = {};
+  vec3 *colors[3] = {};
+
+  for (int i = 0; i < model->index_size; i += 6) {
+    p.points[0] = buffer + model->index[i];
+    p.points[1] = buffer + model->index[i + 2];
+    p.points[2] = buffer + model->index[i + 4];
+
+    initPoly(&p);
+
+    if (p.norm[2] > 0)
+      continue;
+
+    normals[0] = model->normals + model->index[i + 1];
+    normals[1] = model->normals + model->index[i + 3];
+    normals[2] = model->normals + model->index[i + 5];
+
+    colors[0] = model->color + model->index[i];
+    colors[1] = model->color + model->index[i + 2];
+    colors[2] = model->color + model->index[i + 4];
+
+    float texWidth = 2.0f / target->width;
+    float texHight = 2.0f / target->width;
+
+    // float startX = MAX(-1.0f, p.bounding[0]);
+    // float startY = MAX(-1.0f, p.bounding[2]);
+    // float endX = MIN(1.0f, p.bounding[1]);
+    // float endY = MIN(1.0f, p.bounding[3]);
+
+    float startX = (MAX(-1.0f, p.bounding[0]) + 1.0f) * 0.5f * target->width;
+    float endY = (-MAX(-1.0f, p.bounding[2]) + 1.0f) * 0.5f * target->height;
+    float endX = (MIN(1.0f, p.bounding[1]) + 1.0f) * 0.5f * target->width;
+    float startY = (-MIN(1.0f, p.bounding[3]) + 1.0f) * 0.5f * target->height;
+
+    vec2 sp = {};
+    vec3 bary = {};
+    vec4 val = {0};
+    vec3 nor = {};
+    vec3 color = {};
+
+    vec3 viewDir = {};
+    vec3 halfWay = {};
+
+    for (int y = startY; y < endY; y += 1) {
+      for (int x = startX; x < endX; x += 1) {
+        // for (float y = startY; y < endY; y += texHight) {
+        //   for (float x = startX; x < endX; x += texWidth) {
+        float fX = ((float)x) * texWidth - 1.0f;
+        float fY = 1.0f - ((float)y) * texHight;
+        sp[0] = fX;
+        sp[1] = fY;
+        calcBarycentrics(&p, sp, bary);
+        if (bary[0] >= 0.0f && bary[1] >= 0.0f && bary[2] >= 0.0f) {
+          uint8_t depth = (uint8_t)(255.0 * fApplyBary(bary, (*p.points[0])[2],
+                                                       (*p.points[1])[2],
+                                                       (*p.points[2])[2]));
+          // if (depth < getDepth(target, x, y)) {
+          vApplyBary(bary, (*normals[0]), (*normals[1]), (*normals[2]), nor);
+          vApplyBary(bary, (*colors[0]), (*colors[1]), (*colors[2]), color);
+
+          viewDir[0] = fX;
+          viewDir[1] = -fY;
+          viewDir[2] = 2.144663;
+
+          vec3_norm(viewDir, viewDir);
+          vec3_add(halfWay, viewDir, lightDir);
+          vec3_norm(halfWay, halfWay);
+
+          vec3_dup(val, color);
+          float diffuse = MAX(vec3_dot(nor, lightDir), 0.0f);
+          // float l = powf(MAX(vec3_dot(halfWay, nor), 0.0), 2.0);
+          float spec = powf(MAX(vec3_dot(halfWay, nor), 0.0), model->shininess);
+          spec *= (model->shininess + 8.0) / 25.1327;
+          // val[0] = nor[0] * 0.5 + 0.5;
+          // val[1] = nor[1] * 0.5 + 0.5;
+          // val[2] = nor[2] * 0.5 + 0.5;
+          // val[0] = ((float)depth) / 255.0f;
+          // val[1] = ((float)depth) / 255.0f;
+          // val[2] = ((float)depth) / 255.0f;
+          vec3_scale(val, val, diffuse * 0.5 + spec + 0.5);
+          // vec3_set(val, l);
+          val[3] = ((float)depth) / 255.0f;
+
+          set(target, x, y, val);
+          // }
+        }
+      }
+    }
+  }
+}
+
+#endif
--- a/src/rendertarget.h
+++ b/src/rendertarget.h
@@ -0,0 +1,55 @@
+#ifndef RENDER_TARGET
+#define RENDER_TARGET
+#include "linmath.h"
+#include <stdint.h>
+#include <string.h>
+typedef struct {
+  int width;
+  int height;
+  uint8_t *pixels;
+} render_target;
+
+int bufferSize(int width, int height) {
+  return width * height * 4 * sizeof(uint8_t);
+}
+
+void clearTarget(render_target *r) {
+  memset(r->pixels, 0, 4 * r->height * r->width * sizeof(uint8_t));
+  for (int i = 3; i < r->height * r->height * 4; i += 4) {
+    r->pixels[i] = 255;
+  }
+}
+
+void setColor(render_target *r, int x, int y, vec3 val) {
+  int start = (r->width * y + x) * 4;
+  r->pixels[start + 0] = (uint8_t)(val[0] * 255);
+  r->pixels[start + 1] = (uint8_t)(val[1] * 255);
+  r->pixels[start + 2] = (uint8_t)(val[2] * 255);
+}
+void getColor(render_target *r, int x, int y, int dst[3]) {
+  int start = (r->width * y + x) * 4;
+  dst[0] = r->pixels[start + 0];
+  dst[1] = r->pixels[start + 1];
+  dst[2] = r->pixels[start + 2];
+}
+void set(render_target *r, int x, int y, vec4 val) {
+  int start = (r->width * y + x) * 4;
+  r->pixels[start + 0] = (uint8_t)(val[0] * 255);
+  r->pixels[start + 1] = (uint8_t)(val[1] * 255);
+  r->pixels[start + 2] = (uint8_t)(val[2] * 255);
+  r->pixels[start + 3] = (uint8_t)(val[3] * 255);
+}
+void get(render_target *r, int x, int y, int dst[4]) {
+  int start = (r->width * y + x) * 4;
+  dst[0] = r->pixels[start + 0];
+  dst[1] = r->pixels[start + 1];
+  dst[2] = r->pixels[start + 2];
+  dst[3] = r->pixels[start + 3];
+}
+void setDepth(render_target *r, int x, int y, float val) {
+  r->pixels[(r->width * y + x) * 4 + 3] = (uint8_t)(val * 255);
+}
+uint8_t getDepth(render_target *r, int x, int y) {
+  return r->pixels[(r->width * y + x) * 4 + 3];
+}
+#endif
--- a/switch.sh
+++ b/switch.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+if [ -e "mathTest.cpp" ]; then
+	mv main.cpp oldMain.cpp
+	mv mathTest.cpp main.cpp
+else
+	mv main.cpp mathTest.cpp
+	mv oldMain.cpp main.cpp
+fi
--- a/test.bin
+++ b/test.bin
--- a/test.fbx
+++ b/test.fbx
--- a/test.gltf
+++ b/test.gltf
@@ -0,0 +1,297 @@
+{
+	"asset":{
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+}
--- a/test.mtl
+++ b/test.mtl
@@ -0,0 +1,12 @@
+# Blender 5.0.0 MTL File: 'test.blend'
+# www.blender.org
+
+newmtl Material.001
+Ns 0.000000
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.500000
+d 1.000000
+illum 2
--- a/test.obj
+++ b/test.obj
@@ -0,0 +1,836 @@
+# Blender 5.0.0
+# www.blender.org
+mtllib test.mtl
+o Cylinder.003
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+f 164/125/158 163/62/158 171/60/162
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+f 169/63/161 166/65/159 165/122/159
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+f 172/134/162 171/60/162 167/62/160
+f 10/7/10 152/115/151 159/137/156
+f 152/115/151 151/114/150 160/9/156
--- a/test.usdc
+++ b/test.usdc
--- a/testModel.hpp
+++ b/testModel.hpp
Author	SHA1	Message	Date
Amy Retzerau	85dbded287	cpp end	2026-04-03 12:34:06 +02:00
Amy Retzerau	cd77088dbf	setuo: clang cache to gitignore	2026-04-03 12:33:45 +02:00
Amy Retzerau	f19e61b585	feat: rewrite to c	2026-04-01 23:51:02 +02:00