[require]
GLSL >= 1.10

[vertex shader]
void main()
{
	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}

[fragment shader]
void main()
{
	float sum;
	vec3 c = vec3(0.0);
	for(sum = 10.0; sum >= 4.5; sum -= 1.0){
		c.x += 0.1;
	}
	for(sum = 10.0; sum >= 5.0; sum -= 1.0){
		c.y += 0.1;
	}
	for(sum = 10.0; sum >= 5.5; sum -= 1.0){
		c.z += 0.1;
	}
	gl_FragColor = vec4(c, 1.0);
}

[test]
draw rect -1 -1 2 2
probe rgb 1 1 0.6 0.6 0.5