qgsunlitmaterial.h

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/***************************************************************************
    qgsunlitmaterial.h
    ---------------------
    begin                : June 2026
    copyright            : (C) 2026 by Nyall Dawson
    email                : nyall dot dawson 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 QGSUNLITMATERIAL_H
#define QGSUNLITMATERIAL_H
 
#include "qgis.h"
#include "qgis_3d.h"
#include "qgsmaterial.h"
 
#define SIP_NO_FILE
 
class QMatrix4x4;
 
 
namespace Qt3DRender
{
  class QParameter;
  class QShaderProgram;
} // namespace Qt3DRender
 


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

    void setColor( const QColor &color );

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

    void setInstancingMeshTransform( const QMatrix4x4 &transform );
 
  private:
    void init();
    void updateShaders();
 
    Qt3DRender::QShaderProgram *mShaderProgram = nullptr;
    Qgis::MaterialRenderingTechnique mRenderingTechnique;
    bool mInstanced = false;
    Qgis::InstancedMaterialFlags mInstanceFlags;
    Qt3DRender::QParameter *mTransformParameter = nullptr;
    Qt3DRender::QParameter *mNormalTransformParameter = nullptr;
    Qt3DRender::QParameter *mColorParameter = nullptr;
};

 
#endif // QGSUNLITMATERIAL_H