Scene3DVPlay

The root element for rendering 3D objects within a 2D GameWindow. More...

Import Statement: import VPlay 2.0
Since: V-Play 2.5.0

Properties

Detailed Description

The Scene3DVPlay component is the root element to display 3D objects within a 2D GameWindow.

In the Qt3D module, you have several options to display 3D content. However, using the Scene3D component is the most flexible one because you can then mix 2D UI with 3D rendering.

It is based on a Scene3D component with these additional benefits:

  • It combines a Camera, FrameGraph and a SkyboxEntity within one component. This has the benefit that you save code to define them in every project, as they will be used in the majority of applications. If you do not need a SkyboxEntity for example, just leave the skyboxBaseName property empty and none will be used.
  • It provides a rootEntity property to use together with the Render3D component. The Render3D component allows to put a Qt3D Entity anywhere in the scene graph. This enables a flexible entity-component system approach for your game logic.

Note: Qt3D and also the V-Play 3D Components are in a Tech Preview state and may change its API in future versions.

Example Usage

Here is an example how to use Scene3D and Render3D in a V-Play project:

 import VPlay 2.0
 import QtQuick 2.0

 GameWindow {

   // is needed by the Render3D component - to this entity the Entity objects are added to
   property alias rootEntity: scene3D.rootEntity

   Scene {
     id: gameScene

     Level {

       EntityBase {
         entityType: "car"

         // this Box2D physics component modifies the entity position by applying forces
         // when the entity position changes, the Render and Image components change too
         BoxCollider {}

         // allows loading a Mesh and a texture
         // registers itself at the rootEntity
         Render3D {
           source: "assets/3d/car_model.obj"
           texture: "assets/3d/car_texture.png"
         }

         // you could mix 2D images with the 3D renderer like this
         Image {
           source: "assets/2d/car.png"
         }
       }// EntityBase
     }// Level

   }// GameScene

   Scene3DVPlay {
     id: scene3D
   }

   Scene {
     id: hudScene
     // put user elements like buttons here
   }

 }

For a complete game how to use Scene3DVPlay together with the Render3D component, see the CarChallenge 3D Demo.

Property Documentation

camera : alias

Read access to the Camera of the Scene3D.


cameraFarPlane : alias

Real value of the camera far plane distance. Default value is 2000.


cameraNearPlane : alias

Real value of the camera near plane distance. Default value is 0.1.


cameraPosition : alias

Vector3d property that contains the camera position.


cameraUpVector : alias

Vector3d property that contains the camera up vector.


cameraViewCenter : alias

Vector3d property that contains the camera center.


isControlledCamera : bool

Set this property to set Configuration::controlledCamera of the default camera to true.

If you rotate the world by using the default input aspect of the camera, this can lead to unwanted rotation effects.

By default it is set to true, unless you defined a custom frameGraph.


rootEntity : alias

This property provides a way to control the number of times to repeat the sound on each play().

By default, loops is set to Audio.Infinite and therefore plays the sound infinitely until it gets stopped by calling stop().

Note: To have access to the Audio.Infinite enum, make sure to call import QtMultimedia 5.0 in the header of your QML file.


skybox : alias

Read-only property of the used SkyboxEntity.


skyboxBaseName : alias

Folder name string of the skybox cubemap. The folder must contain 6 images, named:

  • <skyboxBasename> + _negx.<skyboxExtension>
  • <skyboxBasename> + _posx.<skyboxExtension>
  • <skyboxBasename> + _negy.<skyboxExtension>
  • <skyboxBasename> + _posy.<skyboxExtension>
  • <skyboxBasename> + _negz.<skyboxExtension>
  • <skyboxBasename> + _posz.<skyboxExtension>

For example, if skyboxBaseName is set to "Qt.resolvedUrl(../assets/3d/cubemaps/mountains)" and the skyboxExtension is ".bmp", these are the expected skybox images:

  • assets/3d/cubemaps/mountains/mountains_negx.bmp
  • assets/3d/cubemaps/mountains/mountains_posx.bmp
  • assets/3d/cubemaps/mountains/mountains_negy.bmp
  • assets/3d/cubemaps/mountains/mountains_posy.bmp
  • assets/3d/cubemaps/mountains/mountains_negz.bmp
  • assets/3d/cubemaps/mountains/mountains_posz.bmp

If you leave this property empty, the SkyboxEntity is disabled.

See also skyboxExtension.


skyboxCameraRotationAngle : alias

RotationAngle of the SkyboxEntity.


skyboxCameraRotationAxis : alias

RotationAxis of the SkyboxEntity.


skyboxExtension : alias

The file ending of the 6 skybox images. By default it is set to "png".

See also skyboxBaseName.


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import QtQuick 2.0
import VPlay 2.0

GameWindow {
  Scene {
    
    SimpleButton {
      anchors.centerIn: parent
      text: "Press Me"
      onClicked: {
        console.debug("Wow you pressed me!")
      }
    }
  }
}

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<Path to V-PlaySDK>/Examples/V-Play/demos/OneCard/OneCard.pro

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<Path to V-PlaySDK>/Examples/V-Play/demos/2048/2048.pro

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<Path to V-PlaySDK>/Examples/V-Play/demos/FlaskOfRum/FlaskOfRum.pro

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<Path to V-PlaySDK>/Examples/V-Play/demos/FlappyBird/FlappyBird.pro

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The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/demos/Squaby/Squaby.pro

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The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/demos/ChickenOutbreak/ChickenOutbreak.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/ChickenOutbreak2/ChickenOutbreak2.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/DoodleJump/DoodleJump.pro

Platformer like Super Mario or Lep's World

We got a demo game for you!

The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/demos/Platformer/Platformer.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/PlatformerWithLevelEditor/PlatformerWithLevelEditor.pro

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The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/demos/StackTheBoxWithCommunityEditor/StackTheBoxWithCommunityEditor.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/BalloonPop/BalloonPop.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/CarChallenge/CarChallenge.pro

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We got a demo game for you!

The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/demos/ZombieBreak/ZombieBreak.pro

Community like Super Mario Maker or Minecraft

We got a demo game for you!

The V-Play SDK includes an open-source demo for this game genre. You can use its source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/examples/Squaby/Squaby.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/StackTheBoxWithCommunityEditor/StackTheBoxWithCommunityEditor.pro

<Path to V-PlaySDK>/Examples/V-Play/demos/PlatformerWithLevelEditor/PlatformerWithLevelEditor.pro

Any other Idea? let us know how we can help you

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The V-Play SDK includes many open-source demos for different game genres. You can use their source code and build your game in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

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QML & JavaScript

Qt Meta Language is a highly intuitive reactive language, which is super easy to learn, yet it's extremely powerful and flexible. Mix it with JavaScript to create awesome stuff, with just a few lines of code. QML also allows you to easily create smooth and complex animations.

import QtQuick 2.0
import VPlayApps 2.0

App {
  Page {
    
    AppButton {
      anchors.centerIn: parent
      text: "Press Me"
      onClicked: {
        console.debug("Wow you pressed me!")
      }
    }
  }
}

Learn More

Monetize & Analyze

With V-Play, you can use many 3rd party services for ads, in-app purchases, analytics and more, with just a few lines of code. All of these plugins work cross-platform, which allows you to maintain a single code base.

Learn More

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The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/showcase/Showcase.pro

Qt World Summit Conference App a full-featured conference management app made by V-Play

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The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/qtws2016/QtWS2016.pro

Twitter App how to build layouts like in the official Twitter app for iOS and Android

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The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/twitter/Twitter.pro

Maps App displays free bikes or boxes at bike stations for Vienna's bike sharing service Citybike Wien

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The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/maps/Maps.pro

Messaging App demonstrates how to create the UI of a Facebook Messenger like app

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The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/messaging/Messaging.pro

Weather App how to include powerful animations into your user interface

We got a demo app for you!

The V-Play SDK includes an open-source demo for this app type. You can use its source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play.

<Path to V-PlaySDK>/Examples/V-Play/appdemos/waether/Weather.pro

Any other Idea? let us know how we can help you

You are looking for another app demo?

The V-Play SDK includes many open-source demos for different app types. You can use their source code and build your app in record time. After installing V-Play, you can simply open the .pro file with Qt Creator, the development environment used for V-Play..

If you do not find your app type in this list and wonder if V-Play is the right choice, just contact us, we are happy to help!

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