/* 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) { vec2 c = (color.rg * 99.0) + 1.0; gl_FragColor = vec4(1.0 / sqrt(c), 0.0, 1.0); }