#version 450 layout(location = 0) in vec2 in_uv; layout(location = 0) out vec4 out_color; void main() { out_color = vec4(in_uv, 0.0, 1.0); if ((in_uv.x > 0.5)) { out_color = vec4(1.0, in_uv.y, 0.0, 1.0); } }