[require]
GLSL >= 1.10

[vertex shader]
uniform float a[3];

float func(float array[3]);

varying vec4 color;

void main()
{
	gl_Position = gl_Vertex;
	color = vec4(func(a), vec3(1.0));
}

float func(float array[3])
{
	return array[2];
}

[fragment shader]
varying vec4 color;

void main()
{
	gl_FragColor = color;
}

[test]
uniform float a[0] 0.25
uniform float a[1] 0.5
uniform float a[2] 0.75
draw rect -1 -1 2 2
probe all rgba 0.75 1.0 1.0 1.0