[require]
GLSL >= 1.20

[vertex shader file]
glsl-mvp.vert

[fragment shader]
#version 120
void main()
{
   const vec2 v1 = clamp(vec2(-10.0, -15.0), vec2(-5.0, 5.0), vec2(1.0, 10.0));
   const vec2 v2 = clamp(v1, -0.25, 1.25);
   gl_FragColor = vec4(0.0, v2.x + v2.y, 0.0, 1.0);
}

[test]
clear color 0.0 0.0 0.0 0.0
clear
ortho
draw rect 10 10 10 10
probe rgb 15 15 0.0 1.0 0.0