Rigidbody.PublishTransform

描述

将 Rigidbody 的位置和旋转应用到相应的Transform组件。

这比手动设置Transform.position和Transform.rotation更有效率。

注意：此方法不会更新子 Transform。它应该从最顶层的 Transform 调用，向下遍历层次结构。

using UnityEngine;

public class PositionTracker : MonoBehaviour
{
    private PhysicsScene m_SomeScene;
    private Rigidbody m_Rigidbody;

    public void SimulateTrajectory(float totalTime)
    {
        m_SomeScene.RunSimulationStages(0f, SimulationStage.PrepareSimulation);

        for (int i = 0; i < totalTime / Time.fixedDeltaTime; i++)
            m_SomeScene.RunSimulationStages(Time.fixedDeltaTime, SimulationStage.RunSimulation);

        // Transform of the m_Rigidbody is still like it was at the start of the method
        m_Rigidbody.PublishTransform();
        // Transform of the m_Rigidbody is now up to date and can be accessed to see where the body ended up after simulating for "totalTime" seconds
    }
}

使用Rigidbody模拟PhysicsScene，并使用PublishTransform将物理系统中的信息读取到Transform组件。