[require]
GLSL >= 1.10

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

[fragment shader]
uniform vec4 color;
void main()
{
	gl_FragColor = vec4(0.0, pow(color.b, 2.0), 0.0, 0.0);
}

[test]
uniform vec4 color 0.0 0.0 0.5 0.0
draw rect -1 -1 2 2
probe rgb 1 1 0.0 0.25 0.0