feat: included glm to Cmake

CMakeLists.txt

@@ -4,8 +4,13 @@ project(64kDemo VERSION 0.1
 		DESCRIPTION "CPU SDF Renderer"
 		LANGUAGES CXX)
 
+set (CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
 SET(CMAKE_CXX_FLAGS "-Os -s")
 
+
 add_executable(one main.cpp)
 
-target_link_libraries(one m glfw GLEW GL)
+find_package(glm REQUIRED)
+
+target_link_libraries(one m glfw GLEW GL glm::glm)

PerformanceAnalyser.hpp

@@ -0,0 +1,40 @@
+#include <GL/glew.h>
+#include <cmath>
+#include <iostream>
+
+class PerformanceAnalyser {
+  private:
+    double lastFrameTime = 0;
+    int frameCount = 0;
+    double timeAcc = 0;
+    double lastFps = 0;
+
+  public:
+    PerformanceAnalyser(int framesToAcc = 10, bool autoPrint = true)
+        : framesToAcc(framesToAcc), autoPrint(autoPrint) {};
+
+    int framesToAcc;
+    bool autoPrint;
+
+    int getFPS() { return lastFps; }
+
+    void update(float time) {
+
+        timeAcc += (time - lastFrameTime);
+        lastFrameTime = time;
+        frameCount++;
+
+        if (frameCount == framesToAcc) {
+
+            lastFps = double(framesToAcc) / timeAcc;
+
+            if (autoPrint) {
+                std::cout << "Fps: " << std::round(lastFps * 10.0) * 0.1 << "\n"
+                          << std::flush;
+            }
+
+            frameCount = 0;
+            timeAcc = 0;
+        }
+    }
+};

build.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+cd build
+cmake --build .
+CMD="#!/bin/bash
+dd bs=1 skip=%s<\$0|unlzma>/tmp/C;chmod +x /tmp/C;trap '' HUP;/tmp/C&"
+COUNT=$(printf "$CMD" | wc -c)
+EXTRA=$(printf "$COUNT" | wc -c)
+COUNT=$((COUNT + EXTRA + 1))
+echo "$CMD" | sed 's/%s/'"$COUNT"'/' > two
+chmod +x two
+sstrip one
+lzma -9 one
+cat one.lzma >> two
+rm one.lzma

main.cpp

@@ -1,7 +1,9 @@
 #include "FullScreenQuad.hpp"
+#include "PerformanceAnalyser.hpp"
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
 #include <cstdio>
+#include <iostream>
 
 const char *vertexShaderSource =
 #include "fsq.glsl"
@@ -104,7 +106,15 @@ int main(int argc, char **argv) {
 
     FullScreenQuad fsq{};
 
+    PerformanceAnalyser perf{};
+
+    double time = glfwGetTime();
+
     while (!glfwWindowShouldClose(window)) {
+
+        time = glfwGetTime();
+        perf.update(time);
+
         processInput(window);
         /* Render here */
 
@@ -112,8 +122,12 @@ int main(int argc, char **argv) {
         glClear(GL_COLOR_BUFFER_BIT);
 
         glUseProgram(shaderProgram);
+
         int aspectLocation = glGetUniformLocation(shaderProgram, "aspect");
         glUniform1f(aspectLocation, aspect);
+        int timeLocation = glGetUniformLocation(shaderProgram, "t");
+        glUniform1f(timeLocation, 2. * time);
+
         glBindVertexArray(fsq.getVAO());
         glDrawArrays(GL_TRIANGLES, 0, 6);
 

readme.md

@@ -8,6 +8,9 @@
     - [ ] Shader Management
         - [ ] Configure Preprocessor
         - [ ] Shader Storage
+    - [x] Binary compression
+
+- [x] C++ Math Lib
 
 - [ ] SDF
     - [ ] Basic Shape Rendering
@@ -25,7 +28,7 @@
         - [ ] Rounding
         - [ ] Boolean
         - [ ] Infinite
-        - [ ] Displacement
+        - [x] Displacement
         - [ ] Twist
         - [ ] Bend
 

sdf.glsl

@@ -5,6 +5,7 @@ out vec4 FragColor;
 in vec2 texCoords;
 
 uniform float aspect;
+uniform float t;
 
 vec3 center = vec3(0.0,-4.0,20.0);
 float radius = 5.0;
@@ -27,7 +28,7 @@ struct Ray {
 };
 
 Ray createRay(vec3 dir, vec3 pos){
-    return Ray(dir, pos, .0, .0, SmallHit(80.,0.,false), vec3(.0));
+    return Ray(dir, pos, .0, .0, SmallHit(80.,0.,false), vec3(1.0));
 }
 
 Ray applyMin(Ray ray, float min) {
@@ -51,7 +52,7 @@ Ray applyMin(Ray ray, float min) {
 
 
 float planeMin(vec3 pos){
-    return pos.y - planeHeight;
+    return pos.y - planeHeight+ 0.2*sin(5*pos.x+t)*sin(5*pos.y+t)*sin(5*pos.z+t);
 }
 
 float sphereMin(vec3 pos){
@@ -87,11 +88,13 @@ Ray march(Ray ray){
     //ray.min = minFn(ray.pos);
     ray = minFn(ray);
     int c = 0;
-    while(( c < 200) && (ray.min < 100.0f) && (ray.min > 0.01f) ) {
+    while(( c < 1000) && (ray.min < 100.0f) && (ray.min > 0.01f) ) {
         ray = minFn(ray);    
         c++;
     }
-
+    if(ray.min > 0.01){
+        ray.color = vec3(1.0);
+    }
     return ray;
 }
 
@@ -141,11 +144,14 @@ void main()
 
     light *= shLeve;
 
+    Ray reflectR = createRay(reflect(ray.dir,normal),ray.pos + 0.1* normal);
+    reflectR = march(reflectR);
+
     if(ray.min <= 0.2){
-        //FragColor = vec4(vec3(shRay.small.min)*0.1,1.0);
-        FragColor = vec4(ray.color * (light+0.3), 1.0);
+        //FragColor = vec4(0,1,0,1.0);
+        FragColor = vec4(mix(ray.color,reflectR.color,0.3) * (light+0.3), 1.0);
     } else {
-        FragColor = vec4(.0,0.0,0.0,1.0);
+        FragColor = vec4(ray.color,1.0);
     }
 
 }