libreoffice/canvas/opengl/rectangularTwoColorGradientFragmentShader.glsl
Markus Mohrhard 1de0dd02c8 make the shaders compliant to GLSL 1.2
Change-Id: Ic15760ca40d719ae333003c9bc241c813cb284fa
2014-09-02 01:08:47 +02:00

26 lines
732 B
GLSL

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#version 120
uniform vec4 v_startColor4d;
uniform vec4 v_endColor4d;
uniform mat3x2 m_transform;
varying vec2 v_textureCoords2d;
void main(void)
{
vec2 v = abs( vec2(m_transform * vec3(v_textureCoords2d,1)) );
float t = max(v.x, v.y);
gl_FragColor = mix(v_startColor4d,
v_endColor4d,
1.0-t);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */