swift - 如何在 RealityKit 中为变换设置动画

Question

在我的 previous question我已经找到了如何仅在对象上的一个轴上进行旋转变换，现在我希望将其设置为动画。

有没有办法在 RealityKit 中做到这一点？

Answer 1

带动画的旋转:

copy the box's current transform

var rotationTransform = boxAnchor.steelBox?.transform

set the box to rotate 90 degrees over z-axis

rotationTransform?.rotation = simd_quatf(angle: .pi/2, axis: [0,0,1])

move the box to the new transform over 10s

boxAnchor.steelBox?.move(to: rotationTransform!, relativeTo: boxAnchor.steelBox?.parent, duration: 10, timingFunction: .easeInOut)

动画翻译:

var translationTransform = boxAnchor.steelBox?.transform

translationTransform?.translation = SIMD3<Float>(x: 5, y: 0, z: 0)

boxAnchor.steelBox?.move(to: translationTransform!, relativeTo: boxAnchor.steelBox?.parent, duration: 10, timingFunction: .easeInOut)

用动画缩放:

var scaleTransform = boxAnchor.steelBox?.transform

scaleTransform?.scale = SIMD3<Float>(x: 1, y: 1, z: 1)

boxAnchor.steelBox?.move(to: scaleTransform!, relativeTo: boxAnchor.steelBox?.parent, duration: 10, timingFunction: .easeInOut)