| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
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| 6 | **
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| 7 | ** This file is part of the demonstration applications of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at qt-info@nokia.com.
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | varying vec3 position, normal;
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| 43 | varying vec4 specular, ambient, diffuse, lightDirection;
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| 44 |
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| 45 | uniform sampler2D tex;
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| 46 | uniform vec4 basicColor;
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| 47 |
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| 48 | void main()
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| 49 | {
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| 50 | vec3 N = normalize(normal);
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| 51 | // assume directional light
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| 52 |
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| 53 | gl_MaterialParameters M = gl_FrontMaterial;
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| 54 |
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| 55 | float NdotL = dot(N, lightDirection.xyz);
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| 56 | float RdotL = dot(reflect(normalize(position), N), lightDirection.xyz);
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| 57 |
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| 58 | vec3 absN = abs(gl_TexCoord[1].xyz);
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| 59 | vec3 texCoord;
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| 60 | if (absN.x > absN.y && absN.x > absN.z)
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| 61 | texCoord = gl_TexCoord[1].yzx;
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| 62 | else if (absN.y > absN.z)
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| 63 | texCoord = gl_TexCoord[1].zxy;
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| 64 | else
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| 65 | texCoord = gl_TexCoord[1].xyz;
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| 66 | texCoord.y *= -sign(texCoord.z);
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| 67 | texCoord += 0.5;
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| 68 |
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| 69 | vec4 texColor = texture2D(tex, texCoord.xy);
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| 70 | vec4 unlitColor = gl_Color * mix(basicColor, vec4(texColor.xyz, 1.0), texColor.w);
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| 71 | gl_FragColor = (ambient + diffuse * max(NdotL, 0.0)) * unlitColor +
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| 72 | M.specular * specular * pow(max(RdotL, 0.0), M.shininess);
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| 73 | }
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