f9f395c28b
Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
77 lines
2.8 KiB
GLSL
77 lines
2.8 KiB
GLSL
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
|
** All rights reserved.
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
**
|
|
** This file is part of the demonstration applications of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** GNU Lesser General Public License Usage
|
|
** This file may be used under the terms of the GNU Lesser General Public
|
|
** License version 2.1 as published by the Free Software Foundation and
|
|
** appearing in the file LICENSE.LGPL included in the packaging of this
|
|
** file. Please review the following information to ensure the GNU Lesser
|
|
** General Public License version 2.1 requirements will be met:
|
|
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
**
|
|
** In addition, as a special exception, Nokia gives you certain additional
|
|
** rights. These rights are described in the Nokia Qt LGPL Exception
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU General
|
|
** Public License version 3.0 as published by the Free Software Foundation
|
|
** and appearing in the file LICENSE.GPL included in the packaging of this
|
|
** file. Please review the following information to ensure the GNU General
|
|
** Public License version 3.0 requirements will be met:
|
|
** http://www.gnu.org/copyleft/gpl.html.
|
|
**
|
|
** Other Usage
|
|
** Alternatively, this file may be used in accordance with the terms and
|
|
** conditions contained in a signed written agreement between you and Nokia.
|
|
**
|
|
**
|
|
**
|
|
**
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
varying vec3 position, normal;
|
|
varying vec4 specular, ambient, diffuse, lightDirection;
|
|
|
|
uniform sampler2D tex;
|
|
uniform sampler3D noise;
|
|
|
|
//const vec4 graniteColors[3] = {vec4(0.0, 0.0, 0.0, 1), vec4(0.30, 0.15, 0.10, 1), vec4(0.80, 0.70, 0.75, 1)};
|
|
uniform vec4 graniteColors[3];
|
|
|
|
float steep(float x)
|
|
{
|
|
return clamp(5.0 * x - 2.0, 0.0, 1.0);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
vec2 turbulence = vec2(0, 0);
|
|
float scale = 1.0;
|
|
for (int i = 0; i < 4; ++i) {
|
|
turbulence += scale * (texture3D(noise, gl_TexCoord[1].xyz / scale).xy - 0.5);
|
|
scale *= 0.5;
|
|
}
|
|
|
|
vec3 N = normalize(normal);
|
|
// assume directional light
|
|
|
|
gl_MaterialParameters M = gl_FrontMaterial;
|
|
|
|
float NdotL = dot(N, lightDirection.xyz);
|
|
float RdotL = dot(reflect(normalize(position), N), lightDirection.xyz);
|
|
|
|
vec4 unlitColor = mix(graniteColors[1], mix(graniteColors[0], graniteColors[2], steep(0.5 + turbulence.y)), 4.0 * abs(turbulence.x));
|
|
gl_FragColor = (ambient + diffuse * max(NdotL, 0.0)) * unlitColor +
|
|
M.specular * specular * pow(max(RdotL, 0.0), M.shininess);
|
|
}
|