71 lines
2.1 KiB
C#
71 lines
2.1 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 EdgeDashedOutlineFeature : ScriptableRendererFeature
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{
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class EdgePass : ScriptableRenderPass
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{
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private Material material;
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private RenderTargetIdentifier source;
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private RenderTargetHandle tempTarget;
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public EdgePass(Material mat)
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{
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material = mat;
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tempTarget.Init("_TempEdgeTex");
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}
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public void Setup(RenderTargetIdentifier src)
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{
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source = src;
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}
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public override void OnCameraSetup(CommandBuffer cmd, ref RenderingData renderingData)
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{
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// 在这里安全获取 camera target 描述
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var desc = renderingData.cameraData.cameraTargetDescriptor;
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desc.depthBufferBits = 0;
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// 分配临时RT
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cmd.GetTemporaryRT(tempTarget.id, desc);
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}
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public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
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{
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CommandBuffer cmd = CommandBufferPool.Get("EdgeDashedOutline");
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// 这里才能安全访问 source（cameraColorTarget）
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Blit(cmd, source, tempTarget.Identifier(), material);
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Blit(cmd, tempTarget.Identifier(), source);
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context.ExecuteCommandBuffer(cmd);
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CommandBufferPool.Release(cmd);
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}
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public override void OnCameraCleanup(CommandBuffer cmd)
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{
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cmd.ReleaseTemporaryRT(tempTarget.id);
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}
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}
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public Material outlineMat;
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EdgePass pass;
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public override void Create()
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{
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pass = new EdgePass(outlineMat);
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// 指定渲染阶段（默认 AfterRenderingTransparents）
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pass.renderPassEvent = RenderPassEvent.AfterRenderingTransparents;
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}
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public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
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{
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// 这里不能访问 cameraColorTarget，只能传入 renderer.cameraColorTarget 的引用
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pass.Setup(renderer.cameraColorTarget);
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renderer.EnqueuePass(pass);
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}
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}
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