qgsphongmaterial.h

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/***************************************************************************
  qgsphongmaterial.h
  --------------------------------------
  Date                 : April 2026
  Copyright            : (C) 2026 by Dominik Cindrić
  Email                : viper dot miniq at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSPHONGMATERIAL_H
#define QGSPHONGMATERIAL_H
 
#include "qgis.h"
#include "qgis_3d.h"
#include "qgsmaterial.h"
 
#include <QColor>
#include <QObject>
 
#define SIP_NO_FILE
 
class QMatrix4x4;
 
 
namespace Qt3DRender
{
  class QParameter;
  class QShaderProgram;
} // namespace Qt3DRender


class _3D_EXPORT QgsPhongMaterial : public QgsMaterial
{
    Q_OBJECT
 
  public:
    explicit QgsPhongMaterial( Qt3DCore::QNode *parent = nullptr );

    void setInstancingEnabled( bool enabled, Qgis::InstancedMaterialFlags flags );

    void setInstancingMeshTransform( const QMatrix4x4 &transform );
 
    ~QgsPhongMaterial() override;
 
  public slots:
    void setAmbient( const QColor &ambient, float scaleFactor = 1 );
    void setDiffuse( const QColor &diffuse, float scaleFactor = 1 );
    void setSpecular( const QColor &specular, float scaleFactor = 1 );
    void setShininess( float shininess );
    void setOpacity( float opacity );

    void setDataDefinedEnabled( bool enabled );
 
  private:
    void init();
    void updateShaders();
 
    Qt3DRender::QParameter *mAmbientParameter = nullptr;
    Qt3DRender::QParameter *mDiffuseParameter = nullptr;
    Qt3DRender::QParameter *mSpecularParameter = nullptr;
    Qt3DRender::QParameter *mShininessParameter = nullptr;
    Qt3DRender::QParameter *mOpacityParameter = nullptr;
    Qt3DRender::QShaderProgram *mShaderProgram = nullptr;
    bool mDataDefinedEnabled = false;
    bool mInstanced = false;
    Qgis::InstancedMaterialFlags mInstanceFlags;
    Qt3DRender::QParameter *mTransformParameter = nullptr;
    Qt3DRender::QParameter *mNormalTransformParameter = nullptr;
};

 
#endif // QGSPHONGMATERIAL_H