Qt 5.9 | Qt 3D | Qt 3D: Materials C++ Example | houseplant.cpp Example File

Qt 5.9.3 Reference Documentation

# houseplant.cpp Example File

materials-cpp/houseplant.cpp

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      #include "houseplant.h"
      #include <Qt3DRender/qtexture.h>

      const char *potNames[] = {
          "cross",
          "square",
          "triangle",
          "sphere"
      };

      const char *plantNames[] = {
          "bamboo",
          "palm",
          "pine",
          "spikes",
          "shrub"
      };

      HousePlant::HousePlant(Qt3DCore::QNode *parent)
          : Qt3DCore::QEntity(parent)
          , m_pot(new RenderableEntity(this))
          , m_plant(new RenderableEntity(m_pot))
          , m_cover(new RenderableEntity(m_pot))
          , m_potMaterial(new Qt3DExtras::QNormalDiffuseMapMaterial())
          , m_plantMaterial(new Qt3DExtras::QNormalDiffuseMapAlphaMaterial())
          , m_coverMaterial(new Qt3DExtras::QNormalDiffuseMapMaterial())
          , m_potImage(new Qt3DRender::QTextureImage())
          , m_potNormalImage(new Qt3DRender::QTextureImage())
          , m_plantImage(new Qt3DRender::QTextureImage())
          , m_plantNormalImage(new Qt3DRender::QTextureImage())
          , m_coverImage(new Qt3DRender::QTextureImage())
          , m_coverNormalImage(new Qt3DRender::QTextureImage())
          , m_plantType(Bamboo)
          , m_potShape(Cross)
      {
          m_pot->transform()->setScale(0.03f);
          m_pot->addComponent(m_potMaterial);
          m_plant->addComponent(m_plantMaterial);
          m_cover->addComponent(m_coverMaterial);

          m_potMaterial->diffuse()->addTextureImage(m_potImage);
          m_potMaterial->normal()->addTextureImage(m_potNormalImage);
          m_plantMaterial->diffuse()->addTextureImage(m_plantImage);
          m_plantMaterial->normal()->addTextureImage(m_plantNormalImage);
          m_coverMaterial->diffuse()->addTextureImage(m_coverImage);
          m_coverMaterial->normal()->addTextureImage(m_coverNormalImage);

          updatePlantType();
          updatePotShape();

          m_coverImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/cover.webp")));
          m_coverNormalImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/cover_normal.webp")));
          m_potImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/pot.webp")));
          m_potNormalImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/pot_normal.webp")));

          m_potMaterial->setShininess(10.0f);
          m_potMaterial->setSpecular(QColor::fromRgbF(0.75f, 0.75f, 0.75f, 1.0f));

          m_plantMaterial->setShininess(10.0f);

          m_coverMaterial->setSpecular(QColor::fromRgbF(0.05f, 0.05f, 0.05f, 1.0f));
          m_coverMaterial->setShininess(5.0f);
      }

      HousePlant::~HousePlant()
      {
      }

      void HousePlant::setPotShape(HousePlant::PotShape shape)
      {
          if (shape != m_potShape) {
              m_potShape = shape;
              updatePotShape();
          }
      }

      void HousePlant::setPlantType(HousePlant::Plant plant)
      {
          if (plant != m_plantType) {
              m_plantType = plant;
              updatePlantType();
          }
      }

      HousePlant::PotShape HousePlant::potShape() const
      {
          return m_potShape;
      }

      HousePlant::Plant HousePlant::plantType() const
      {
          return m_plantType;
      }

      void HousePlant::setPosition(const QVector3D &pos)
      {
          m_pot->transform()->setTranslation(pos);
      }

      void HousePlant::setScale(float scale)
      {
          m_pot->transform()->setScale(scale);
      }

      QVector3D HousePlant::position() const
      {
          return m_pot->transform()->translation();
      }

      float HousePlant::scale() const
      {
          return m_pot->transform()->scale();
      }

      void HousePlant::updatePotShape()
      {
          m_pot->mesh()->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/") + potNames[m_potShape] + QStringLiteral("-pot.obj")));
          m_plant->mesh()->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/") + potNames[m_potShape] + QStringLiteral("-") + plantNames[m_plantType] + QStringLiteral(".obj")));
      }

      void HousePlant::updatePlantType()
      {
          m_plant->mesh()->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/") + potNames[m_potShape] + QStringLiteral("-") + plantNames[m_plantType] + QStringLiteral(".obj")));

          m_plantImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/") + plantNames[m_plantType] + QStringLiteral(".webp")));
          m_plantNormalImage->setSource(QUrl(QStringLiteral("qrc:/assets/houseplants/") + plantNames[m_plantType] + QStringLiteral("_normal.webp")));
      }