/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/


attribute vec4 gtf_Vertex;
attribute vec4 gtf_Color;
uniform mat4 gtf_ModelViewProjectionMatrix;
varying vec4 color;

bool _any(in bvec3 a)
{
	bool temp = false;

	if(a[0]) temp = true;
	if(a[1]) temp = true;
	if(a[2]) temp = true;

	return temp;
}

void main (void)
{
	vec3 c = floor(1.5 * gtf_Color.rgb);   // 1/3 true, 2/3 false
	color = vec4(vec3(_any(bvec3(c))), 1.0);
	gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
}