#version 430 core in vec2 vTexPos; out vec4 fColor; uniform sampler2D screenTexture; void main() { // vec4 col = vec4(0,0,0,0); // for (int i = 0; i < 9; i++) // { // col += // } fColor = texture(screenTexture, vTexPos); // fColor = vec4(1,1,1,0); }