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41 lines
1.2 KiB
41 lines
1.2 KiB
using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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// You can execute this in the editor as long as you don't instantiate the material
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//[ExecuteInEditMode]
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public class Smear : MonoBehaviour
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{
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Queue<Vector3> m_recentPositions = new Queue<Vector3>();
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public int FramesBufferSize = 0;
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public Renderer Renderer = null;
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private Material m_instancedMaterial;
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private Material InstancedMaterial
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{
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get { return m_instancedMaterial; }
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set { m_instancedMaterial = value; }
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}
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private void Start()
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{
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// Instantiate the material so every object has a unique smear effect
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InstancedMaterial = Renderer.material;
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// Use this instead if you want to affect all objects at the same time or if you want to run in the editor
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//InstancedMaterial = Renderer.sharedMaterial;
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}
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private void LateUpdate()
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{
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// Feed the previous position in the queue to the shader
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if ( m_recentPositions.Count > FramesBufferSize )
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InstancedMaterial.SetVector( "_PrevPosition", m_recentPositions.Dequeue() );
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// Feed the current anchor position to the shader
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InstancedMaterial.SetVector( "_Position", transform.position );
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m_recentPositions.Enqueue( transform.position );
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}
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}
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