#version 330 uniform vec2 onScreenPos, onScreenSize; layout (location = 0) in vec2 vert; layout (location = 1) in vec2 texCoord; out vec2 fragVert; out vec2 fragTexCoord; void main() { gl_Position = vec4(onScreenPos + onScreenSize * texCoord, 1, 0); fragVert = texCoord * 2 - vec2(1, 1); fragTexCoord = texCoord; }