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/****************************************************************************
**
** 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 QtQuick3D 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PROJECTIVEDTEXTUREEFFECT_H
#define PROJECTIVEDTEXTUREEFFECT_H
#include "qglshaderprogrameffect.h"
//#include "deptheffect.h"
#include "qmatrix4x4.h"
class ProjectiveTextureEffect : public QGLShaderProgramEffect
{
public:
explicit ProjectiveTextureEffect();
virtual void setActive(QGLPainter *painter, bool flag);
virtual void update(QGLPainter *painter, QGLPainter::Updates updates);
virtual void setProjectorDirection(const QVector4D &direction);
void setCameraModelViewMatrix(const QMatrix4x4 &newCameraModelViewMatrix);
void setProjectorProjectionMatrix(const QMatrix4x4 &newMatrix);
void setProjectorViewMatrix(const QMatrix4x4 &newMatrix);
void setModelMatrix(const QMatrix4x4 &newMatrix);
// TODO:
// QMatrix4x4 eyeLinearTexgenMatrix;
protected:
virtual void setupShaders();
private:
virtual void recalulateObjectLinearTexgenMatrix();
bool matrixDirty;
QMatrix4x4 modelMatrix;
QMatrix4x4 objectLinearTexgenMatrix;
QMatrix4x4 cameraModelViewMatrix;
QMatrix4x4 inverseCameraModelViewMatrix;
QMatrix4x4 projectorProjectionMatrix;
QMatrix4x4 projectorViewMatrix;
QVector4D projectorDirection;
};
#endif // PROJECTIVEDTEXTUREEFFECT_H
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