Clean project structure.

src/rendering/visual_elements/nodes/MeshNode.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "MaterialNode.h"
+
+class AbstractMesh;
+
+class MeshNode : public MaterialNode
+{
+public:
+    MeshNode(const Point& location);
+    void setMesh(AbstractMesh* mesh);
+
+    SceneItem* getSceneItem(std::size_t idx) const override;
+    std::size_t getNumSceneItems() const override;
+
+    void setWidth(double width);
+    void setHeight(double height);
+
+    void update(SceneInfo* sceneInfo) override;
+
+private:
+    bool mMeshIsDirty{true};
+    AbstractMesh* mWorkingMesh{nullptr};
+
+    double mWidth{1};
+    double mHeight{1};
+    std::unique_ptr<SceneModel> mModel;
+};