graph/shaders/post.vert

#version 460 core

layout(location = 0) out vec2 outUV;

void main() {
    outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
    gl_Position = vec4(outUV * 2.0 + -1.0, 0.0, 1.0);
}