48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
71 lines
2.9 KiB
GLSL
71 lines
2.9 KiB
GLSL
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
|
|
** Contact: http://www.qt-project.org/legal
|
|
**
|
|
** This file is part of the demonstration applications of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and Digia. For licensing terms and
|
|
** conditions see http://qt.digia.com/licensing. For further information
|
|
** use the contact form at http://qt.digia.com/contact-us.
|
|
**
|
|
** GNU Lesser General Public License Usage
|
|
** Alternatively, 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, Digia gives you certain additional
|
|
** rights. These rights are described in the Digia 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.
|
|
**
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
varying vec3 position, normal;
|
|
varying vec4 specular, ambient, diffuse, lightDirection;
|
|
|
|
uniform sampler2D tex;
|
|
uniform sampler3D noise;
|
|
|
|
//const vec4 woodColors[2] = {vec4(0.37,0.24,0.20,1), vec4(0.8,0.6,0.4,1)};
|
|
uniform vec4 woodColors[2];
|
|
//const float woodTubulence = 0.1;
|
|
uniform float woodTubulence;
|
|
|
|
void main()
|
|
{
|
|
float r = length(gl_TexCoord[1].yz);
|
|
r += woodTubulence * texture3D(noise, 0.25 * gl_TexCoord[1].xyz).x;
|
|
|
|
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);
|
|
|
|
float f = fract(16.0 * r);
|
|
vec4 unlitColor = mix(woodColors[0], woodColors[1], min(1.25 * f, 5.0 - 5.0 * f));
|
|
gl_FragColor = (ambient + diffuse * max(NdotL, 0.0)) * unlitColor +
|
|
M.specular * specular * pow(max(RdotL, 0.0), M.shininess);
|
|
}
|