/* 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. */ #ifdef GL_ES precision mediump float; #endif varying vec4 color; void main (void) { const vec3 min_c = vec3(0.25, 0.25, 0.25); const vec3 max_c = vec3(0.75, 0.75, 0.75); vec3 c = color.rgb; if(c[0] < min_c[0]) c[0] = min_c[0]; if(c[1] < min_c[1]) c[1] = min_c[1]; if(c[2] < min_c[2]) c[2] = min_c[2]; if(c[0] > max_c[0]) c[0] = max_c[0]; if(c[1] > max_c[1]) c[1] = max_c[1]; if(c[2] > max_c[2]) c[2] = max_c[2]; gl_FragColor = vec4(c, 1.0); }