.. index:: 
	Single: Using Qt3D; Using Qt3D

==========
Using Qt3D
==========

In this chapter we will learn how to use Qt3D through many samples.


.. index:: 
	pair: Using Qt3D; Drawing Cube

Drawing Cube
============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(3, 3, 3))

		oCubeMaterial = new QPhongMaterial(oCube)
		oCubeMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Cube") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex1.png
	:alt: Qt3D Example - Drawing Cube


.. index:: 
	pair: Using Qt3D; Drawing Torus

Drawing Torus
=============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oTorus = new  QTorusMesh(oRootEntity)
			oTorus.setRadius(1.0)
			oTorus.setMinorRadius(0.4)
			oTorus.setRings(100)
			oTorus.setSlices(20)

		oTorusTransform = new  QTransform(oTorus)
		oTorusTransform.setScale(2)
		oTorusTransform.setTranslation(new QVector3D(3, 3, 3))

		oTorusMaterial = new QPhongMaterial(oTorus)
		oTorusMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oTorusEntity = new QEntity(oRootEntity)
		oTorusEntity.addComponent(oTorus)
		oTorusEntity.addComponent(oTorusMaterial)
		oTorusEntity.addComponent(oTorusTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Torus") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex2.png
	:alt: Qt3D Example - Drawing Torus

.. index:: 
	pair: Using Qt3D; Drawing Sphere

Drawing Sphere
==============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oSphere = new  QSphereMesh(oRootEntity)
			oSphere.setRadius(1.0)
			oSphere.setRings(100)
			oSphere.setSlices(20)

		oSphereTransform = new  QTransform(oSphere)
		oSphereTransform.setScale(2)
		oSphereTransform.setTranslation(new QVector3D(3, 3, 3))

		oSphereMaterial = new QPhongMaterial(oSphere)
		oSphereMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oSphereEntity = new QEntity(oRootEntity)
		oSphereEntity.addComponent(oSphere)
		oSphereEntity.addComponent(oSphereMaterial)
		oSphereEntity.addComponent(oSphereTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Sphere") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex3.png
	:alt: Qt3D Example - Drawing Sphere

.. index:: 
	pair: Using Qt3D; Drawing Cylinder

Drawing Cylinder
================

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)


		oCylinder = new  QCylinderMesh(oRootEntity)
			oCylinder.setRadius(1)
			oCylinder.setRings(100)
			oCylinder.setSlices(20)
		oCylinder.setLength(5)

		oCylinderTransform = new  QTransform(oCylinder)
		oCylinderTransform.setScale(2)
		oCylinderTransform.setTranslation(new QVector3D(1, 0, 3))

		oCylinderMaterial = new QPhongMaterial(oCylinder)
		oCylinderMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oCylinderEntity = new QEntity(oRootEntity)
		oCylinderEntity.addComponent(oCylinder)
		oCylinderEntity.addComponent(oCylinderMaterial)
		oCylinderEntity.addComponent(oCylinderTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Cylinder") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex4.png
	:alt: Qt3D Example - Drawing Cylinder

.. index:: 
	pair: Using Qt3D; Drawing Cone

Drawing Cone
============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)


		oCone = new  QConeMesh(oRootEntity)
			oCone.setRings(100)
			oCone.setSlices(20)
		oCone.setLength(5)

		oConeTransform = new  QTransform(oCone)
		oConeTransform.setScale(2)
		oConeTransform.setTranslation(new QVector3D(1, 0, 3))

		oConeMaterial = new QPhongMaterial(oCone)
		oConeMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oConeEntity = new QEntity(oRootEntity)
		oConeEntity.addComponent(oCone)
		oConeEntity.addComponent(oConeMaterial)
		oConeEntity.addComponent(oConeTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Cone") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex5.png
	:alt: Qt3D Example - Drawing Cone

.. index:: 
	pair: Using Qt3D; Drawing Plane

Drawing Plane
=============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)


		oPlane = new  QPlaneMesh(oRootEntity)
		oPlane.setHeight(5)
		oPlane.setWidth(5)
		oPlane.setmeshresolution(new qSize(10,10))

		oPlaneTransform = new  QTransform(oPlane)
		oPlaneTransform.setScale(2)
		oPlaneTransform.setTranslation(new QVector3D(0, -4, 4))

		oPlaneMaterial = new QPhongMaterial(oPlane)
		oPlaneMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})

		oPlaneEntity = new QEntity(oRootEntity)
		oPlaneEntity.addComponent(oPlane)
		oPlaneEntity.addComponent(oPlaneMaterial)
		oPlaneEntity.addComponent(oPlaneTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Plane") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex6.png
	:alt: Qt3D Example - Drawing Plane

	
.. index:: 
	pair: Using Qt3D; Texture

Texture
=======

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(3, 3, 3))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Adding Texture") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex7.png
	:alt: Qt3D Example - Texture

.. index:: 
	pair: Using Qt3D; Key Press

Key Press
=========

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

			oFilter = new qallevents(oView)
			oFilter.setKeyPressEvent("pKeyPress()")
			oView.installeventfilter(oFilter)

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)
		oCamController.setEnabled(False)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(3, 3, 3))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Moving Cube using the Keyboard") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		oContainer.setfocus(0)

		exec()
	}

	func pKeyPress
		nKey = oFilter.getkeycode()
		oX = oCubeTransform.translation().x()
		oY = oCubeTransform.translation().y() 
		oZ = oCubeTransform.translation().z()
		switch nKey
			on Qt_Key_Right
				oX++
			on Qt_Key_Left
				oX--
			on Qt_Key_Up
				oY++
			on Qt_Key_Down
				oY--
		off
		oCubeTransform.setTranslation(new QVector3D(oX, oY, oZ))

.. image:: qt3d_ex8.png
	:alt: Qt3D Example - Key Press


.. index:: 
	pair: Using Qt3D; Object Picker

Object Picker
=============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

			oFilter = new qallevents(oView)
			oFilter.setKeyPressEvent("pKeyPress()")
			oView.installeventfilter(oFilter)

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)
		oCamController.setEnabled(False)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(3, 3, 3))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		oPicker = new qObjectPicker(oCube) {
			setclickedevent("pClick()")
		}
		oCubeEntity.addComponent(oPicker)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Object Picker - Click on the Cube") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		oContainer.setfocus(0)

		exec()
	}

	func pKeyPress
		nKey = oFilter.getkeycode()
		oX = oCubeTransform.translation().x()
		oY = oCubeTransform.translation().y() 
		oZ = oCubeTransform.translation().z()
		switch nKey
			on Qt_Key_Right
				oX++
			on Qt_Key_Left
				oX--
			on Qt_Key_Up
				oY++
			on Qt_Key_Down
				oY--
		off
		oCubeTransform.setTranslation(new QVector3D(oX, oY, oZ))

	func pClick
		msginfo("Event","Click")
		oContainer.setfocus(0)


.. image:: qt3d_ex9.png
	:alt: Qt3D Example - Object Picker

.. index:: 
	pair: Using Qt3D; Frame Action

Frame Action
============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)
		oCamController.setEnabled(False)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(1)
			setYextent(1)
			setZextent(1)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(-5, -5, -5))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		nAngle=0	nSpeed=0.1
		oFrameAction = new qFrameAction(oRootEntity) {
			settriggeredevent("pEvent()")
		}

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Frame Action") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

	func pEvent

		# Move the Cube
			oX = oCubeTransform.translation().x()
			oY = oCubeTransform.translation().y() 
			oZ = oCubeTransform.translation().z()
			if oX >= 4
				nSpeed=-0.1
			but oX <= -10
				nSpeed=0.1
			ok
			oCubeTransform.setTranslation(
				new QVector3D(oX+nSpeed, oY+nSpeed, oZ+nSpeed))

		# Rotate the Cube
			nAngle+=5  if nAngle=360  nAngle=0 ok
			oQ = new QQuaternion(0,0,0,0)
			oCubeTransform.setRotation(
				oQ.fromAxisAndAngle(new QVector3D(0, 1, 0), nAngle))

.. image:: qt3d_ex10.png
	:alt: Qt3D Example - Frame Action

.. index:: 
	pair: Using Qt3D; Text 2D

Text 2D
=======

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oView.defaultframegraph().setclearcolor(new QColor() {setRGB(100,250,150,255)})

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(0, 3, 4))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/ring.bmp") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 

		oText2DEntity = new  QText2DEntity(oRootEntity) {
			setText("Ring programming language")
			setWidth(400) setHeight(40)
			setColor(new QColor() {setRGB(128,128,128,255)})
		}

		oText2DTransform = new  QTransform(oText2DEntity)
		oText2DTransform.setScale(0.1)
		oText2DTransform.setTranslation(new QVector3D(-10.5, -5, 0))

		oText2DEntity.addComponent(oText2DTransform)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Text2D") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}


.. image:: qt3d_ex11.png
	:alt: Qt3D Example - Text 2D

	
.. index:: 
	pair: Using Qt3D; Extruded Text 

Extruded Text 
=============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oView.defaultframegraph().setclearcolor(new QColor() {setRGB(100,250,150,255)})

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oCube = new  QCuboidMesh(oRootEntity) {
			setXextent(2)
			setYextent(2)
			setZextent(3)
		}

		oCubeTransform = new  QTransform(oCube)
		oCubeTransform.setScale(2)
		oCubeTransform.setTranslation(new QVector3D(0, 3, 4))

		oTextureLoader = new  QTextureLoader(oCube);
		oTextureLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/ring.bmp") )
		oCubeMaterial = new QTextureMaterial(oCube)
		oCubeMaterial.setTexture(oTextureLoader)

		oCubeEntity = new QEntity(oRootEntity)
		oCubeEntity.addComponent(oCube)
		oCubeEntity.addComponent(oCubeMaterial)
		oCubeEntity.addComponent(oCubeTransform)
	 
		oTextEntity = new QEntity(oRootEntity)

		oTextMesh = new  QExtrudedTextMesh(oTextEntity) {
			setText("Ring")
		}

		oTextTransform = new  QTransform(oTextEntity)
		oTextTransform.setScale(3)
		oTextTransform.setTranslation(new QVector3D(-5.5, -4, 3))

		oTextMaterial = new QPhongMaterial(oTextEntity);
		oTextMaterial.setDiffuse(new QColor() {setRGB(0,0,255,255)})
		
		oTextEntity.addComponent(oTextMesh)
		oTextEntity.addComponent(oTextTransform)
		oTextEntity.addComponent(oTextMaterial)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Extruded Text") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex12.png
	:alt: Qt3D Example - Extruded Text 

	
.. index:: 
	pair: Using Qt3D; Model

Model
=====

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oModel = new qmesh(oRootEntity)

		oModel.setsource(
			new qURL("file:///"+currentdir()+"/assets/model/lucky_cat.obj") ) 

		oModelTransform = new  QTransform(oModel)
		oModelTransform.setScale(0.1)
		oModelTransform.setTranslation(new QVector3D(0, 0, 0))
		oQ = new QQuaternion(0,0,0,0)
		oModelTransform.setRotation(oQ.fromAxisAndAngle(new QVector3D(0, 1, 0), 180))

		oModelMaterial = new QPhongMaterial(oModel)
		oModelMaterial.setDiffuse(new QColor() {setRGB(0,255,128,255)})

		oModelEntity = new QEntity(oRootEntity)
		oModelEntity.addComponent(oModel)
		oModelEntity.addComponent(oModelmaterial)
		oModelEntity.addComponent(oModelTransform)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Model (Obj File)") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}


.. image:: qt3d_ex13.png
	:alt: Qt3D Example - Model

.. index:: 
	pair: Using Qt3D; Model Texture 

Model Texture 
=============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 25, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oModel = new qmesh(oRootEntity)

		oModel.setsource(
			new qURL("file:///"+currentdir()+"/assets/model/Robot.obj") ) 

		oModelTransform = new  QTransform(oModel)
		oModelTransform.setScale(0.5)
		oModelTransform.setTranslation(new QVector3D(0, 12, 4))

		oLoader = new  QTextureLoader(oModel)
		oModelMaterial = new QTextureMaterial(oModel)
		oLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/Robot.jpg") )
		oModelMaterial.setTexture(oLoader)

		oModelEntity = new QEntity(oRootEntity)
		oModelEntity.addComponent(oModel)
		oModelEntity.addComponent(oModelMaterial)
		oModelEntity.addComponent(oModelTransform)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Model Texture") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex14.png
	:alt: Qt3D Example - Model Texture 

	
.. index:: 
	pair: Using Qt3D; Draw Office 

Draw Office
===========

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 0, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oModel = new qmesh(oRootEntity)

		oModel.setsource(
			new qURL("file:///"+currentdir()+"/assets/model/Reception_Table.obj") ) 

		oModelTransform = new  QTransform(oModel)
		oModelTransform.setScale(1)
		oModelTransform.setTranslation(new QVector3D(0, -2.5, 16))

		oModelMaterial = new QPhongMaterial(oModel)
		oModelMaterial.setDiffuse(new QColor() {setRGB(0,255,128,255)})

		oModelEntity = new QEntity(oRootEntity)
		oModelEntity.addComponent(oModel)
		oModelEntity.addComponent(oModelmaterial)
		oModelEntity.addComponent(oModelTransform)

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Model (Obj File) - Office") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex15.png
	:alt: Qt3D Example - Draw Office 

.. index:: 
	pair: Using Qt3D; Many Objects

Many Objects
============

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 20, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oModel = new qmesh(oRootEntity)
		oModel.setsource(
			new qURL("file:///"+currentdir()+"/assets/model/Robot.obj") ) 

		oModelTransform = new  QTransform(oModel)
		oModelTransform.setScale(0.2)
		oModelTransform.setTranslation(new QVector3D(0, 10, 10))

		oModelMaterial = new QPhongMaterial(oModel)
		oModelMaterial.setDiffuse(new QColor() {setRGB(0,100,0,0)})

		oModelEntity = new QEntity(oRootEntity)
		oModelEntity.addComponent(oModel)

		oLoader = new  QTextureLoader(oModel);
		oModelMaterial = new QTextureMaterial(oModel)
		oLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oModelMaterial.setTexture(oLoader)

		oModelEntity.addComponent(oModelMaterial)
		oModelEntity.addComponent(oModelTransform)

		for n = 1 to 10

			oTorus = new  QTorusMesh(oRootEntity)
				oTorus.setRadius(1.0*n)
				oTorus.setMinorRadius(0.4*n)
				oTorus.setRings(100)
				oTorus.setSlices(20)
		
			oTorusTransform = new  QTransform(null)
			oTorusTransform.setScale(2)
			oTorusTransform.setTranslation(new QVector3D(5.0*n, 4.0*n, 0.0))
		
			oTorusMaterial = new QPhongMaterial(null);
			oTorusMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})
		
			oTorusEntity = new QEntity(oRootEntity)
			oTorusEntity.addComponent(oTorus)
		
			oLoader = new  QTextureLoader(oTorus);
			oTorusMaterial = new QTextureMaterial(oTorus)
			oLoader.setSource(
				new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
			oTorusMaterial.setTexture(oLoader)
		
			oTorusEntity.addComponent(oTorusMaterial)
			oTorusEntity.addComponent(oTorusTransform)
		next

		oView.setRootEntity(oRootEntity)

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)

		oWidget { 
			setwindowtitle("Using Qt3D - Many Objects") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

.. image:: qt3d_ex16.png
	:alt: Qt3D Example - Many Objects 

.. index:: 
	pair: Using Qt3D; Camera

Camera
======

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oView = new Qt3dwindow() 

		oWidget = new QWidget()	
		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000.0)
			oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(0, 20, 0))	

		oLightEntity = new QEntity(oRootEntity)
			oLight = new QPointLight(oLightEntity)
		oLight.setColor(new QColor() { setRGB(255,255,255,255) })
		oLight.setIntensity(1)
		oLightEntity.addComponent(oLight)

		oLightTransform = new QTransform(oLightEntity)
		oLightTransform.setTranslation(oCameraEntity.position())
		oLightEntity.addComponent(oLightTransform)

		oCamController = new  QFirstPersonCameraController(oRootEntity)
			oCamController.setCamera(oCameraEntity)

		oModel = new qmesh(oRootEntity)
		oModel.setsource(
			new qURL("file:///"+currentdir()+"/assets/model/Robot.obj") ) 

		oModelTransform = new  QTransform(oModel)
		oModelTransform.setScale(0.2)
		oModelTransform.setTranslation(new QVector3D(0, 10, 10))

		oModelMaterial = new QPhongMaterial(oModel)
		oModelMaterial.setDiffuse(new QColor() {setRGB(0,100,0,0)})

		oModelEntity = new QEntity(oRootEntity)
		oModelEntity.addComponent(oModel)

		oLoader = new  QTextureLoader(oModel);
		oModelMaterial = new QTextureMaterial(oModel)
		oLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
		oModelMaterial.setTexture(oLoader)

		oModelEntity.addComponent(oModelMaterial)
		oModelEntity.addComponent(oModelTransform)

		for n = 1 to 10

			oTorus = new  QTorusMesh(oRootEntity)
				oTorus.setRadius(1.0*n)
				oTorus.setMinorRadius(0.4*n)
				oTorus.setRings(100)
				oTorus.setSlices(20)
		
			oTorusTransform = new  QTransform(null)
			oTorusTransform.setScale(2)
			oTorusTransform.setTranslation(new QVector3D(5.0*n, 4.0*n, 0.0))
		
			oTorusMaterial = new QPhongMaterial(null);
			oTorusMaterial.setDiffuse(new QColor() {setRGB(200,100,100,100)})
		
			oTorusEntity = new QEntity(oRootEntity)
			oTorusEntity.addComponent(oTorus)
		
			oLoader = new  QTextureLoader(oTorus);
			oTorusMaterial = new QTextureMaterial(oTorus)
			oLoader.setSource(
				new QUrl("file:///"+currentdir()+"/assets/texture/gold.jpg") )
			oTorusMaterial.setTexture(oLoader)
		
			oTorusEntity.addComponent(oTorusMaterial)
			oTorusEntity.addComponent(oTorusTransform)
		next

		oView.setRootEntity(oRootEntity)


		btn1 = new qPushButton(oWidget) {
			setText("Move the Camera and the Robot") setClickEvent("pMove()") 
		}

		oLayout = new QVBoxLayout()
		oLayout.AddWidget(oContainer)
		oLayout.AddWidget(btn1)

		oWidget { 
			setwindowtitle("Using Qt3D - Camera") 
			resize(800,600)
			setLayout(oLayout) 
			showMaximized() 
		}

		exec()
	}

	func pMove 

		oCameraEntity.setPosition(new QVector3D(0, 0, 20.0))
			oCameraEntity.setUpVector(new QVector3D(0, 1, 0))
			oCameraEntity.setViewCenter(new QVector3D(20, 15, 20))

		oModelTransform.setTranslation(new QVector3D(20, 15, 20))
		oQ = new QQuaternion(0,0,0,0)
		oModelTransform.setRotation(oQ.fromAxisAndAngle(new QVector3D(1, 1, 0), 270))


.. image:: qt3d_ex17.png
	:alt: Qt3D Example - Camera

	
.. index:: 
	pair: Using Qt3D; Scene 

Scence 
======

.. code-block:: ring

	load "guilib.ring"

	new qApp {

		oWidget = new QWidget()

		oView = new Qt3DWindow() 
		oView.defaultFrameGraph().setClearColor(new QColor() {setRGB(0,0,0,255)})

		oContainer = oWidget.createWindowContainer(oView,oWidget,0)

		oRootEntity = new QEntity(oContainer) 

		oInput = new QInputAspect(oRootEntity)
			oView.registerAspect(oInput)

		oCameraEntity = oView.Camera()

		oCameraEntity.lens().setPerspectiveProjection(45.0, 16.0/9.0, 0.1, 1000)
		oCameraEntity.setPosition(new QVector3D(-13.34, -6.43, 16.47))
			oCameraEntity.setUpVector(new QVector3D(0.02, 0, 1))
			oCameraEntity.setViewCenter(new QVector3D(-13.34, 17.05, 15.42))	

		oCameraController = new  QFirstPersonCameraController(oRootEntity)
		oCameraController.setCamera(oCameraEntity)
		oCameraController.setEnabled(False)

		oLongRoomEntity = new QEntity(oRootEntity)

		oLongRoomModel = new QMesh(oLongRoomEntity)

		oLongRoomModel.setSource(
			new qURL("file:///"+CurrentDir()+"/assets/model/Long_Room.obj") ) 

		oLongRoomTransform = new  QTransform(oLongRoomEntity)
		oLongRoomTransform.setScale(1)
		oLongRoomTransform.setTranslation(new QVector3D(5, 0, 15))

		oLongRoomLoader = new  QTextureLoader(oLongRoomModel)
		oLongRoomMaterial = new QTextureMaterial(oLongRoomModel)
		oLongRoomLoader.setSource(
			new QUrl("file:///"+currentdir()+"/assets/texture/croc.jpg") )
		oLongRoomMaterial.setTexture(oLongRoomLoader)

		oLongRoomEntity.addComponent(oLongRoomModel)
		oLongRoomEntity.addComponent(oLongRoomMaterial)
		oLongRoomEntity.addComponent(oLongRoomTransform)

		oTableEntity = new QEntity(oRootEntity)

		oTableModel = new QMesh(oTableEntity)
		oTableModel.setSource(
			new qURL("file:///"+CurrentDir()+"/assets/model/Reception_Table.obj") ) 

		oTableTransform = new  QTransform(oTableEntity)
		oTableTransform.setScale(0.3)
		oTableTransform.setTranslation(new QVector3D(5, 0, 15))
		oQ = new QQuaternion(0,0,0,0)
		oTableTransform.setRotation(oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), -180))

		oTableModelMaterial = new QPhongMaterial(oTableEntity)
		oTableModelMaterial.setDiffuse(new QColor() {setRGB(255,255,255,255)})

		oTableEntity.addComponent(oTableModel)
		oTableEntity.addComponent(oTableModelmaterial)
		oTableEntity.addComponent(oTableTransform)

		oFirstLightEntity = new QEntity(oRootEntity)

			oFirstLight = new QPointLight(oFirstLightEntity)
		oFirstLight.setColor(new qColor() { setRGB(128,128,128,128) })
		oFirstLight.setIntensity(1)

		oFirstLightTransform = new QTransform(oFirstLightEntity)
		oFirstLightTransform.setTranslation(new QVector3D(5, 0, 20))

		oFirstLightEntity.addComponent(oFirstLight)
		oFirstLightEntity.addComponent(oFirstLightTransform)

		aCats = list(5)
		for n = 1 to 5
		v = n * 0.1
		aCats[n] = []
		aCats[n][:oCatModelEntity] = new QEntity(oRootEntity)
		aCats[n][:oCatModel] = new QMesh(aCats[n][:oCatModelEntity])
		aCats[n][:oCatModel].setSource(
			new qURL("file:///"+CurrentDir()+"/assets/model/Lucky_Cat.obj") ) 
		aCats[n][:oCatModelMaterial] = new QPhongMaterial(aCats[n][:oCatModel])
		aCats[n][:oCatModelMaterial].setDiffuse(
			new QColor() {setRGB(255,255,255,255)})
		aCats[n][:oCatModelTransform] = new  QTransform(aCats[n][:oCatModelEntity])
		aCats[n][:oCatModelTransform].setScale(0.01)
		aCats[n][:oCatModelTransform].setTranslation(
			new QVector3D(-5*(v+v), 1, 15.2))
		oQ = new QQuaternion(0,0,0,0)
		aCats[n][:oCatModelTransform].setRotation(
			oQ.fromAxisAndAngle(
				new QVector3D(0, 1, 1), 180))
		aCats[n][:oCatModelEntity].addComponent(aCats[n][:oCatModel])
		aCats[n][:oCatModelEntity].addComponent(aCats[n][:oCatModelmaterial])
		aCats[n][:oCatModelEntity].addComponent(aCats[n][:oCatModelTransform])
		next

		oSecondLightEntity = new QEntity(oRootEntity)

		oSecondLight = new QPointLight(oSecondLightEntity)
		oSecondLight.setColor(new qColor() { setRGB(255,255,255,255) })
		oSecondLight.setIntensity(1)

		oSecondLightTransform = new QTransform(oSecondLightEntity)
		oSecondLightTransform.setTranslation(new QVector3D(-5, 1, 15.5))

		oSecondLightEntity.addComponent(oSecondLight)
		oSecondLightEntity.addComponent(oSecondLightTransform)

		oRobotEntity = new QEntity(oRootEntity)

		oRobotModel = new QMesh(oRobotEntity)
		oRobotModel.setSource(
			new qURL("file:///"+CurrentDir()+"/assets/model/Fat_Robot.obj") ) 
		oRobotTransform = new  QTransform(oRobotEntity)
		oRobotTransform.setScale(0.006)
		
		robotX = -15
		robotY = -2
		robotZ = 15

		oRobotTransform.setTranslation(new QVector3D(-15, -2, 15))
		oQ = new QQuaternion(0,0,0,0)
		oRobotTransform.setRotation(
			oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), 170))

		oRobotMaterial = new QPhongMaterial(oRobotEntity)
		oRobotMaterial.setDiffuse(new QColor() {setRGB(128,128,128,255)})

		oRobotEntity.addComponent(oRobotModel)
		oRobotEntity.addComponent(oRobotTransform)
		oRobotEntity.addComponent(oRobotMaterial)

		oView.setRootEntity(oRootEntity)

		oWidget { 
			setwindowtitle("Using Qt3D - Scene") 
			showfullscreen() 
		}

		oContainer.resize(oWidget.width(),oWidget.height())

			oFilter = new QAllEvents(oView)
			oFilter.setKeyPressEvent("pKeyPress()")
			oView.installeventfilter(oFilter)
		oContainer.setfocus(0)

		exec()

	}

	func pKeyPress

		nKey 	= oFilter.getKeyCode()
		nSpeed 	= 0.1
		cX 	= oCameraEntity.position().x()
		CY 	= oCameraEntity.position().y()
		cZ 	= oCameraEntity.position().z()
		cVCx 	= oCameraEntity.viewCenter().x()
		cVCy 	= oCameraEntity.viewCenter().y()
		cVCz 	= oCameraEntity.viewCenter().z()

		switch nKey
			on Qt_Key_Right
				if cX < 4.8
					robotX+= nSpeed
					oCameraEntity.setPosition(
						new QVector3D(cX+0.1, cY, cZ))
					oCameraEntity.setViewCenter(
						new QVector3D(cVCx+nSpeed, cVCy, cVCz))	
					oRobotTransform.setRotation(
						oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), 170))
				ok
			on Qt_Key_Left
				if cX > - 13.8
					robotX-= nSpeed
					oCameraEntity.setPosition(
					  new QVector3D(cX-0.1, cY, cZ))
					oCameraEntity.setViewCenter(
					  new QVector3D(cVCx-nSpeed, cVCy, cVCz))	
					oRobotTransform.setRotation(
					  oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), 160))
				ok
			on Qt_Key_Down 
				if robotY > -3.5
					robotY-= nSpeed
					oCameraEntity.setPosition(
					  new QVector3D(cX, cY, cZ))
					oRobotTransform.setRotation(
					  oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), 190))
				ok
			on Qt_Key_Up
				if robotY < 2
					robotY+= nSpeed
					oCameraEntity.setPosition(
					  new QVector3D(cX, cY, cZ))
					oRobotTransform.setRotation(
					  oQ.fromAxisAndAngle(new QVector3D(0, 1, 1), 180))
				ok
			on Qt_Key_Escape
				oWidget.close()
		off

		oRobotTransform.setTranslation(new QVector3D(robotX, robotY, robotZ))


.. image:: qt3d_ex18.png
	:alt: Qt3D Example - Scene