dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01.vert


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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.
*/


attribute vec4 gtf_Color;
attribute vec4 gtf_Vertex;
uniform mat4 gtf_ModelViewProjectionMatrix;
varying vec4 color;

void main (void)
{
	float c = (gtf_Color.r + 0.01) / 1.01;
	color = vec4(log2(c) / -8.0, 0.0, 0.0, 1.0);
	gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
}