45 lines
1.6 KiB
C#
45 lines
1.6 KiB
C#
using UnityEngine;
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using UnityEngine.Rendering;
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using UnityEngine.Rendering.Universal;
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public class PixelatePass : ScriptableRenderPass
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{
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private Material m_PixelateMaterial;
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// 构造函数，接收材质
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public PixelatePass(Material pixelateMaterial)
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{
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this.m_PixelateMaterial = pixelateMaterial;
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}
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// 这个方法在每一帧渲染该Pass之前被调用
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public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
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{
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// 1. 安全检查
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if (m_PixelateMaterial == null)
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{
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Debug.LogError("Pixelate Material not assigned to the pass.");
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return;
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}
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// 如果渲染的不是游戏主相机（例如Scene视图的相机），则直接返回，避免在编辑器里也显示效果
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if (renderingData.cameraData.cameraType != CameraType.Game)
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{
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return;
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}
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// 2. 获取命令缓冲区
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CommandBuffer cmd = CommandBufferPool.Get("PixelatePass");
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// 3. 【核心修正】在Execute方法内部，安全地获取当前摄像机的渲染目标
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// URP 12+ 使用 renderingData.cameraData.renderer.cameraColorTargetHandle
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RTHandle source = renderingData.cameraData.renderer.cameraColorTargetHandle;
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// 4. 执行Blit操作
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// 将源纹理(source)通过我们的材质处理后，再写回源纹理(source)
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Blit(cmd, source, source, m_PixelateMaterial, 0);
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// 5. 执行并释放命令缓冲区
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context.ExecuteCommandBuffer(cmd);
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CommandBufferPool.Release(cmd);
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}
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} |