Add custom motion vector texture utility

Author: Matt Dean

PostProcessing/Utilities.meta

@@ -0,0 +1,33 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ExampleWheelController : MonoBehaviour {
+
+	private Rigidbody rb;
+	public float acceleration;
+	public Renderer motionVectorRenderer; //Reference to the custom motion vector renderer
+
+	static class Uniforms
+    {
+        internal static readonly int _MotionAmount = Shader.PropertyToID("_MotionAmount");
+    }
+
+
+	void Start () 
+	{
+		rb = GetComponent<Rigidbody> (); //Get reference to rigidbody
+		rb.maxAngularVelocity = 100; //Set max velocity for rigidbody
+	}
+	
+	void Update () 
+	{
+		if (Input.GetKey (KeyCode.UpArrow)) //Rotate forward
+			rb.AddRelativeTorque (new Vector3 (-1 * acceleration, 0, 0), ForceMode.Acceleration); //Add forward torque to mesh
+		else if (Input.GetKey (KeyCode.DownArrow)) //Rotate backward
+			rb.AddRelativeTorque (new Vector3 (1 * acceleration, 0, 0), ForceMode.Acceleration); //Add backward torque to mesh
+		float m = -rb.angularVelocity.x / 100; //Calculate multiplier for motion vector texture
+		if(motionVectorRenderer) //If the custom motion vector texture renderer exists
+			motionVectorRenderer.material.SetFloat (Uniforms._MotionAmount, Mathf.Clamp(m, -0.25f, 0.25f)); //Set the multiplier on the renderer's material
+	}
+}