Demonstrates using different shapes.
This example demonstrates loading and spawning several rigid body meshes as well as animating them. The scene consists of a dice tower, a weave, a cup and a handful of dices. The cup is animated to collect spawning dices and put them in the dice tower. The dices will then roll down and out on the weave.
This is the full qml code for the example:
Window { width: 1280 height: 720 visible: true title: qsTr("QtQuick3DPhysics Custom Shapes") DynamicsWorld { id: physicsWorld running: true typicalLength: 2 enableCCD: true } View3D { id: viewport anchors.fill: parent environment: SceneEnvironment { clearColor: "white" backgroundMode: SceneEnvironment.SkyBox antialiasingMode: SceneEnvironment.MSAA antialiasingQuality: SceneEnvironment.High lightProbe: proceduralSky } Texture { id: proceduralSky textureData: ProceduralSkyTextureData { sunLongitude: -115 } } Texture { id: weaveNormal source: "maps/weave.png" scaleU: 200 scaleV: 200 generateMipmaps: true mipFilter: Texture.Linear } Texture { id: numberNormal source: "maps/numbers-normal.png" } Texture { id: numberFill source: "maps/numbers.png" generateMipmaps: true mipFilter: Texture.Linear } Node { id: scene scale: Qt.vector3d(2, 2, 2) PerspectiveCamera { id: camera position: Qt.vector3d(-45, 20, 60) eulerRotation: Qt.vector3d(-6, -13, 0) clipFar: 1000 clipNear: 0.1 } DirectionalLight { eulerRotation: Qt.vector3d(-45, 25, 0) castsShadow: true brightness: 1 shadowMapQuality: Light.ShadowMapQualityVeryHigh } StaticRigidBody { position: Qt.vector3d(-15, -8, 0) id: tablecloth Model { geometry: HeightFieldGeometry { id: tableclothGeometry extents: Qt.vector3d(150, 20, 150) heightMap: "maps/cloth-heightmap.png" smoothShading: false } materials: PrincipledMaterial { baseColor: "#447722" roughness: 0.8 normalMap: weaveNormal normalStrength: 0.7 } } collisionShapes: HeightFieldShape { id: hfShape extents: tableclothGeometry.extents heightMap: "maps/cloth-heightmap.png" } } DynamicRigidBody { id: diceCup isKinematic: true mass: 0 property vector3d restPos: Qt.vector3d(11, 6, 0) position: restPos pivot: Qt.vector3d(0, 6, 0) collisionShapes: TriangleMeshShape { id: cupShape meshSource: "meshes/simpleCup.mesh" } Model { source: "meshes/cup.mesh" materials: PrincipledMaterial { baseColor: "#cc9988" roughness: 0.3 metalness: 1 } } Behavior on eulerRotation.z { NumberAnimation { duration: 1500 } } Behavior on position { PropertyAnimation { duration: 1500 } } } StaticRigidBody { id: diceTower x: -4 Model { id: testModel source: "meshes/tower.mesh" materials: [ PrincipledMaterial { baseColor: "#ccccce" roughness: 0.3 }, PrincipledMaterial { id: glassMaterial baseColor: "#aaaacc" transmissionFactor: 0.95 thicknessFactor: 1 roughness: 0.05 } ] } collisionShapes: TriangleMeshShape { id: triShape meshSource: "meshes/tower.mesh" } } Component { id: diceComponent DynamicRigidBody { id: thisBody function randomInRange(min, max) { return Math.random() * (max - min) + min; } function restore() { reset(initialPosition, eulerRotation) } scale: Qt.vector3d(scaleFactor, scaleFactor, scaleFactor) eulerRotation: Qt.vector3d(randomInRange(0, 360), randomInRange(0, 360), randomInRange(0, 360)) property vector3d initialPosition: Qt.vector3d(11 + 1.5*Math.cos(index/(Math.PI/4)), 5 + index * 1.5, 0) position: initialPosition property real scaleFactor: randomInRange(0.8, 1.4) property color baseCol: Qt.hsla(randomInRange(0, 1), randomInRange(0.6, 1.0), randomInRange(0.4, 0.7), 1.0) collisionShapes: ConvexMeshShape { id: diceShape meshSource: Math.random() < 0.25 ? "meshes/icosahedron.mesh" : Math.random() < 0.5 ? "meshes/dodecahedron.mesh" : Math.random() < 0.75 ? "meshes/octahedron.mesh" : "meshes/tetrahedron.mesh" } Model { id: thisModel source: diceShape.meshSource materials: PrincipledMaterial { metalness: 1.0 roughness: randomInRange(0.2, 0.6) baseColor: baseCol emissiveMap: numberFill emissiveFactor: Qt.vector3d(1, 1, 1) normalMap: numberNormal normalStrength: 0.75 } } } } Repeater3D { id: dicePool model: 25 delegate: diceComponent function restore() { for (let i = 0; i < count; i++) { objectAt(i).restore() } } } SequentialAnimation { running: physicsWorld.running PauseAnimation { duration: 1500 } ScriptAction { script: diceCup.position = Qt.vector3d(4, 45, 0) } PauseAnimation { duration: 1500 } ScriptAction { script: { diceCup.eulerRotation.z = 130; diceCup.position = Qt.vector3d(0, 45, 0) } } PauseAnimation { duration: 3000 } ScriptAction { script: { diceCup.eulerRotation.z = 0; diceCup.position = Qt.vector3d(4, 45, 0) } } PauseAnimation { duration: 1500 } ScriptAction { script: diceCup.position = diceCup.restPos } PauseAnimation { duration: 2000 } ScriptAction { script: dicePool.restore() } loops: Animation.Infinite } } // scene } // View3D WasdController { keysEnabled: true controlledObject: camera speed: 0.2 } }
As usual it contains a DynamicsWorld and a View3D. In the View3D we have our environment which sets up a lightprobe:
environment: SceneEnvironment { clearColor: "white" backgroundMode: SceneEnvironment.SkyBox antialiasingMode: SceneEnvironment.MSAA antialiasingQuality: SceneEnvironment.High lightProbe: proceduralSky }
We define four textures which will be used for the skybox, the weave and the numbers on the dice:
Texture { id: proceduralSky textureData: ProceduralSkyTextureData { sunLongitude: -115 } } Texture { id: weaveNormal source: "maps/weave.png" scaleU: 200 scaleV: 200 generateMipmaps: true mipFilter: Texture.Linear } Texture { id: numberNormal source: "maps/numbers-normal.png" } Texture { id: numberFill source: "maps/numbers.png" generateMipmaps: true mipFilter: Texture.Linear }
We have a Node which contains our scene with the camera and a directional light:
id: scene scale: Qt.vector3d(2, 2, 2) PerspectiveCamera { id: camera position: Qt.vector3d(-45, 20, 60) eulerRotation: Qt.vector3d(-6, -13, 0) clipFar: 1000 clipNear: 0.1 } DirectionalLight { eulerRotation: Qt.vector3d(-45, 25, 0) castsShadow: true brightness: 1 shadowMapQuality: Light.ShadowMapQualityVeryHigh }
We add the weave which is a StaticRigidBody consisting of a model with a weave texture and a HeightFieldShape for collision.
StaticRigidBody { position: Qt.vector3d(-15, -8, 0) id: tablecloth Model { geometry: HeightFieldGeometry { id: tableclothGeometry extents: Qt.vector3d(150, 20, 150) heightMap: "maps/cloth-heightmap.png" smoothShading: false } materials: PrincipledMaterial { baseColor: "#447722" roughness: 0.8 normalMap: weaveNormal normalStrength: 0.7 } } collisionShapes: HeightFieldShape { id: hfShape extents: tableclothGeometry.extents heightMap: "maps/cloth-heightmap.png" } }
We define the cup as a DynamicRigidBody with a Model and a TriangleMeshShape as the collision shape.
It has a Behavior on the eulerRotation and position properties as these are part of an animation.
DynamicRigidBody { id: diceCup isKinematic: true mass: 0 property vector3d restPos: Qt.vector3d(11, 6, 0) position: restPos pivot: Qt.vector3d(0, 6, 0) collisionShapes: TriangleMeshShape { id: cupShape meshSource: "meshes/simpleCup.mesh" } Model { source: "meshes/cup.mesh" materials: PrincipledMaterial { baseColor: "#cc9988" roughness: 0.3 metalness: 1 } } Behavior on eulerRotation.z { NumberAnimation { duration: 1500 } } Behavior on position { PropertyAnimation { duration: 1500 } } }
The tower is just a StaticRigidBody with a Model and a TriangleMeshShape for collision.
StaticRigidBody { id: diceTower x: -4 Model { id: testModel source: "meshes/tower.mesh" materials: [ PrincipledMaterial { baseColor: "#ccccce" roughness: 0.3 }, PrincipledMaterial { id: glassMaterial baseColor: "#aaaacc" transmissionFactor: 0.95 thicknessFactor: 1 roughness: 0.05 } ] } collisionShapes: TriangleMeshShape { id: triShape meshSource: "meshes/tower.mesh" } }
To generate the dices we use a Component and a Repeater3D. The Component contains a DynamicRigidBody with a ConvexMeshShape and a Model. The position, color, scale and mesh source are randomly generated for each die.
Component { id: diceComponent DynamicRigidBody { id: thisBody function randomInRange(min, max) { return Math.random() * (max - min) + min; } function restore() { reset(initialPosition, eulerRotation) } scale: Qt.vector3d(scaleFactor, scaleFactor, scaleFactor) eulerRotation: Qt.vector3d(randomInRange(0, 360), randomInRange(0, 360), randomInRange(0, 360)) property vector3d initialPosition: Qt.vector3d(11 + 1.5*Math.cos(index/(Math.PI/4)), 5 + index * 1.5, 0) position: initialPosition property real scaleFactor: randomInRange(0.8, 1.4) property color baseCol: Qt.hsla(randomInRange(0, 1), randomInRange(0.6, 1.0), randomInRange(0.4, 0.7), 1.0) collisionShapes: ConvexMeshShape { id: diceShape meshSource: Math.random() < 0.25 ? "meshes/icosahedron.mesh" : Math.random() < 0.5 ? "meshes/dodecahedron.mesh" : Math.random() < 0.75 ? "meshes/octahedron.mesh" : "meshes/tetrahedron.mesh" } Model { id: thisModel source: diceShape.meshSource materials: PrincipledMaterial { metalness: 1.0 roughness: randomInRange(0.2, 0.6) baseColor: baseCol emissiveMap: numberFill emissiveFactor: Qt.vector3d(1, 1, 1) normalMap: numberNormal normalStrength: 0.75 } } } } Repeater3D { id: dicePool model: 25 delegate: diceComponent function restore() { for (let i = 0; i < count; i++) { objectAt(i).restore() } } }
To make the dices move from the cup to the dice tower we animate the cup and move it up and then tip it over. This is done using a SequentialAnimation:
SequentialAnimation { running: physicsWorld.running PauseAnimation { duration: 1500 } ScriptAction { script: diceCup.position = Qt.vector3d(4, 45, 0) } PauseAnimation { duration: 1500 } ScriptAction { script: { diceCup.eulerRotation.z = 130; diceCup.position = Qt.vector3d(0, 45, 0) } } PauseAnimation { duration: 3000 } ScriptAction { script: { diceCup.eulerRotation.z = 0; diceCup.position = Qt.vector3d(4, 45, 0) } } PauseAnimation { duration: 1500 } ScriptAction { script: diceCup.position = diceCup.restPos } PauseAnimation { duration: 2000 } ScriptAction { script: dicePool.restore() } loops: Animation.Infinite }
Finally a WasdController is added to be able to control the camera using a keyboard:
WasdController { keysEnabled: true controlledObject: camera speed: 0.2 }
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