71 lines
2.4 KiB
Plaintext
71 lines
2.4 KiB
Plaintext
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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varying vec3 position, normal;
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varying vec4 specular, ambient, diffuse, lightDirection;
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uniform sampler2D tex;
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uniform sampler3D noise;
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//const vec4 woodColors[2] = {vec4(0.37,0.24,0.20,1), vec4(0.8,0.6,0.4,1)};
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uniform vec4 woodColors[2];
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//const float woodTubulence = 0.1;
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uniform float woodTubulence;
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void main()
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{
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float r = length(gl_TexCoord[1].yz);
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r += woodTubulence * texture3D(noise, 0.25 * gl_TexCoord[1].xyz).x;
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vec3 N = normalize(normal);
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// assume directional light
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gl_MaterialParameters M = gl_FrontMaterial;
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float NdotL = dot(N, lightDirection.xyz);
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float RdotL = dot(reflect(normalize(position), N), lightDirection.xyz);
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float f = fract(16.0 * r);
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vec4 unlitColor = mix(woodColors[0], woodColors[1], min(1.25 * f, 5.0 - 5.0 * f));
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gl_FragColor = (ambient + diffuse * max(NdotL, 0.0)) * unlitColor +
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M.specular * specular * pow(max(RdotL, 0.0), M.shininess);
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}
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