/* 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_Color; attribute vec4 gtf_Vertex; uniform mat4 gtf_ModelViewProjectionMatrix; varying vec4 color; void main (void) { vec3 c = floor(1.5 * gtf_Color.rgb); // 1/3 true, 2/3 false vec3 result = vec3(notEqual(bvec3(c), bvec3(true))); color = vec4(result, 1.0); gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex; }