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/*
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)
{
vec3 c = 2.0 * (color.rgb - 0.5);
if((c[0] < 0.0)) c[0] *= -1.0;
if((c[1] < 0.0)) c[1] *= -1.0;
if((c[2] < 0.0)) c[2] *= -1.0;
gl_FragColor = vec4(c, 1.0);
}
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