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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt3D module 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgllittextureeffect_p.h"
#include "qglabstracteffect_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QGLLitTextureEffect
\since 4.8
\brief The QGLLitTextureEffect class provides a standard effect base class for drawing fragments with a lit texture.
\ingroup qt3d
\ingroup qt3d::painting
\internal
\sa QGLLitDecalTextureEffect, QGLLitModulateTextureEffect
*/
/*!
\class QGLLitDecalTextureEffect
\since 4.8
\brief The QGLLitDecalTextureEffect class provides a standard effect for drawing fragments with a texture decaled over a lit material.
\ingroup qt3d
\ingroup qt3d::painting
\internal
*/
/*!
\class QGLLitModulateTextureEffect
\since 4.8
\brief The QGLLitModulateTextureEffect class provides a standard effect for drawing fragments with a texture modulated with a lit material.
\ingroup qt3d
\ingroup qt3d::painting
\internal
*/
/*!
\internal
*/
QGLLitTextureEffect::QGLLitTextureEffect
(GLenum mode, const char *vshader, const char *fshader,
const QString& programName)
: QGLLitMaterialEffect(mode, vshader, fshader, programName)
{
}
/*!
Destroys this lit texture effect.
*/
QGLLitTextureEffect::~QGLLitTextureEffect()
{
}
#if !defined(QGL_FIXED_FUNCTION_ONLY)
static char const litTextureVertexShader[] =
"attribute highp vec4 vertex;\n"
"attribute highp vec3 normal;\n"
"attribute highp vec4 texcoord;\n"
"uniform highp mat4 matrix;\n"
"uniform highp mat4 modelView;\n"
"uniform highp mat3 normalMatrix;\n"
"varying highp vec4 qt_TexCoord0;\n"
"void main(void)\n"
"{\n"
" gl_Position = matrix * vertex;\n"
" highp vec4 tvertex = modelView * vertex;\n"
" highp vec3 norm = normalize(normalMatrix * normal);\n"
" qLightVertex(tvertex, norm);\n"
" qt_TexCoord0 = texcoord;\n"
"}\n";
static char const litDecalFragmentShader[] =
"uniform sampler2D tex;\n"
#if defined(QT_OPENGL_ES)
"varying mediump vec4 qCombinedColor;\n"
#else
"uniform bool separateSpecular;\n"
"varying mediump vec4 qColor;\n"
"varying mediump vec4 qSecondaryColor;\n"
#endif
"varying highp vec4 qt_TexCoord0;\n"
"\n"
"void main(void)\n"
"{\n"
" mediump vec4 col = texture2D(tex, qt_TexCoord0.st);\n"
#if defined(QT_OPENGL_ES)
" gl_FragColor = vec4(clamp(qCombinedColor.rgb * (1.0 - col.a) + col.rgb * col.a, 0.0, 1.0), qCombinedColor.a);\n"
#else
" if (separateSpecular) {\n"
" gl_FragColor = vec4(clamp(qColor.rgb * (1.0 - col.a) + col.rgb * col.a + qSecondaryColor.xyz, 0.0, 1.0), qColor.a);\n"
" } else {\n"
" mediump vec4 lcolor = clamp(qColor + vec4(qSecondaryColor.xyz, 0.0), 0.0, 1.0);\n"
" gl_FragColor = vec4(clamp(lcolor.rgb * (1.0 - col.a) + col.rgb * col.a, 0.0, 1.0), lcolor.a);\n"
" }\n"
#endif
"}\n";
static char const litModulateFragmentShader[] =
"uniform sampler2D tex;\n"
#if defined(QT_OPENGL_ES)
"varying mediump vec4 qCombinedColor;\n"
#else
"uniform bool separateSpecular;\n"
"varying mediump vec4 qColor;\n"
"varying mediump vec4 qSecondaryColor;\n"
#endif
"varying highp vec4 qt_TexCoord0;\n"
"\n"
"void main(void)\n"
"{\n"
" mediump vec4 col = texture2D(tex, qt_TexCoord0.st);\n"
#if defined(QT_OPENGL_ES)
" gl_FragColor = col * qCombinedColor;\n"
#else
" if (separateSpecular) {\n"
" gl_FragColor = clamp(col * qColor + vec4(qSecondaryColor.xyz, 0.0), 0.0, 1.0);\n"
" } else {\n"
" mediump vec4 lcolor = clamp(qColor + vec4(qSecondaryColor.xyz, 0.0), 0.0, 1.0);\n"
" gl_FragColor = col * lcolor;\n"
" }\n"
#endif
"}\n";
#endif
#ifndef GL_MODULATE
#define GL_MODULATE 0x2100
#endif
#ifndef GL_DECAL
#define GL_DECAL 0x2101
#endif
/*!
Constructs a new lit decal texture effect.
*/
QGLLitDecalTextureEffect::QGLLitDecalTextureEffect()
#if defined(QGL_FIXED_FUNCTION_ONLY)
: QGLLitTextureEffect(GL_DECAL, 0, 0, QString())
#else
: QGLLitTextureEffect(GL_DECAL,
litTextureVertexShader, litDecalFragmentShader,
QLatin1String("qt.texture.litdecal"))
#endif
{
}
/*!
Destroys this lit decal texture effect.
*/
QGLLitDecalTextureEffect::~QGLLitDecalTextureEffect()
{
}
/*!
Constructs a new lit modulate texture effect.
*/
QGLLitModulateTextureEffect::QGLLitModulateTextureEffect()
#if defined(QGL_FIXED_FUNCTION_ONLY)
: QGLLitTextureEffect(GL_MODULATE, 0, 0, QString())
#else
: QGLLitTextureEffect(GL_MODULATE,
litTextureVertexShader, litModulateFragmentShader,
QLatin1String("qt.texture.litmodulate"))
#endif
{
}
/*!
Destroys this lit modulate texture effect.
*/
QGLLitModulateTextureEffect::~QGLLitModulateTextureEffect()
{
}
QT_END_NAMESPACE
|
