feat: added sin distortions

main.cpp

@@ -112,8 +112,12 @@ 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. * glfwGetTime());
+
         glBindVertexArray(fsq.getVAO());
         glDrawArrays(GL_TRIANGLES, 0, 6);
 

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;
@@ -55,7 +56,7 @@ float planeMin(vec3 pos){
 }
 
 float sphereMin(vec3 pos){
-    return length(pos - center) - radius;
+    return length(pos - center) - radius + 0.2*sin(5*pos.x+t)*sin(5*pos.y+t)*sin(5*pos.z+t);
 }
 
 Ray minFn(Ray ray){