#pragma MSP stage(vertex) layout(location=0) in vec4 position; layout(location=1) in vec4 color; out VertexOut { vec4 out_color; }; void main() { gl_Position = position; out_color = color; } #pragma MSP stage(fragment) layout(location=0) out vec4 frag_color; void main() { frag_color = out_color; } /* Expected output: vertex layout(location=0) in vec4 position; layout(location=1) in vec4 color; out VertexOut { vec4 out_color; }; void main() { gl_Position = position; out_color = color; } */ /* Expected output: fragment layout(location=0) out vec4 frag_color; in VertexOut { vec4 out_color; }; void main() { frag_color = out_color; } */