/* 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) { vec4 tmp_Color = color + vec4(0.25); gl_FragColor = vec4(tmp_Color.r / length(tmp_Color.r), 0.0, 0.0, 1.0); }