[require] GLSL >= 1.00 [vertex shader] attribute vec4 piglit_Position; void main() { gl_Position = piglit_Position; } [fragment shader] void main() { for (int i=0; i<8; i++) { if (i > 4) { gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0); continue; } gl_FragColor = vec4(1.0, 0.0, 0.0, 0.0); } } [test] draw rect -1 -1 2 2 relative probe rgb (0.03, 0.25) (0.0, 1.0, 0.0)