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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 = 31.0 * color.rgb + 1.0;
gl_FragColor = vec4(log(c) / 3.466, 1.0);
}
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