diff options
author | Casper van Donderen <casper.vandonderen@nokia.com> | 2011-06-22 13:54:56 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2011-06-24 16:47:24 +0200 |
commit | e0d5221957bf0d7857f924f1f2ae63d490de0a0a (patch) | |
tree | 580dfcaf67d95c18c3fb548b0ffa6f79f1cd60a7 /examples/graphicsview/boxes/refraction.fsh | |
parent | d7c37d9bacc016b1156e15780080cfc8c24f6e6a (diff) |
Move all other demos in qtbase to examples.
Change-Id: Iab0e7364d1f6b348d0e3033ea9304139f5bd6d0d
Reviewed-on: http://codereview.qt.nokia.com/617
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: David Boddie
Diffstat (limited to 'examples/graphicsview/boxes/refraction.fsh')
-rw-r--r-- | examples/graphicsview/boxes/refraction.fsh | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/examples/graphicsview/boxes/refraction.fsh b/examples/graphicsview/boxes/refraction.fsh new file mode 100644 index 0000000000..10ab38a54c --- /dev/null +++ b/examples/graphicsview/boxes/refraction.fsh @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** 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 samplerCube env; +uniform mat4 view; + +// Arrays don't work here on glsl < 120, apparently. +//const float coeffs[6] = float[6](1.0/2.0, 1.0/2.1, 1.0/2.2, 1.0/2.3, 1.0/2.4, 1.0/2.5); +float coeffs(int i) +{ + return 1.0 / (2.0 + 0.1 * float(i)); +} + +void main() +{ + vec3 N = normalize(normal); + vec3 I = -normalize(position); + float IdotN = dot(I, N); + float scales[6]; + vec3 C[6]; + for (int i = 0; i < 6; ++i) { + scales[i] = (IdotN - sqrt(1.0 - coeffs(i) + coeffs(i) * (IdotN * IdotN))); + C[i] = textureCube(env, (-I + coeffs(i) * N) * mat3(view[0].xyz, view[1].xyz, view[2].xyz)).xyz; + } + + gl_FragColor = 0.25 * vec4(C[5].x + 2.0*C[0].x + C[1].x, C[1].y + 2.0*C[2].y + C[3].y, + C[3].z + 2.0*C[4].z + C[5].z, 4.0); +} |