Unity-特效后处理OnRenderImage

using UnityEngine;

public class RenderImage : MonoBehaviour
{
    public Material m_Material;
    /// <summary>
    /// 当完成所有的渲染后，调用
    /// </summary>
    private void OnRenderImage(RenderTexture source, RenderTexture destination)
    {
        //拷贝Source RenderTexture，经过材质的shader的后处理，发送到destination RenderTexture
        Graphics.Blit(source, destination, m_Material);
    }
}