92 lines
3.2 KiB
C#
92 lines
3.2 KiB
C#
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using UnityEngine;
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using UnityEngine.Rendering;
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using UnityEngine.Rendering.Universal;
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public class FogRenderPassFeature : ScriptableRendererFeature
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{
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public enum OutPutType { screen, rTexture, both }
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[System.Serializable]
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public class Setting
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{
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public RenderPassEvent renderPassEvent = RenderPassEvent.AfterRenderingTransparents;
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public Material materal;
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public OutPutType outPutType = OutPutType.screen;
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public RenderTexture outPutRt = null;
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}
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public Setting setting = new Setting();
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class FogRenderPass : ScriptableRenderPass
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{
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private Material material;
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private OutPutType outPutType;
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private RenderTexture outPutRt;
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private ProfilingSampler profilingSampler;
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private int tempTextureId = Shader.PropertyToID("_FogTempTexture");
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public FogRenderPass(FogRenderPassFeature.Setting setting)
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{
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renderPassEvent = setting.renderPassEvent;
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material = setting.materal;
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outPutType = setting.outPutType;
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outPutRt = setting.outPutRt;
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profilingSampler = new ProfilingSampler("FogRenderPassFeature");
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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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if (renderingData.cameraData.isSceneViewCamera) return;
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if (material == null) return;
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CommandBuffer cmd = CommandBufferPool.Get();
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using (new ProfilingScope(cmd, profilingSampler))
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{
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// 不渲染UI Layer
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renderingData.cameraData.camera.cullingMask &= ~(1 << LayerMask.NameToLayer("UI"));
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// 创建临时渲染纹理描述符
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RenderTextureDescriptor descriptor = renderingData.cameraData.cameraTargetDescriptor;
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descriptor.depthBufferBits = 0;
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cmd.GetTemporaryRT(tempTextureId, descriptor);
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// 应用材质
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cmd.Blit(null, tempTextureId, material);
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switch (outPutType)
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{
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case OutPutType.screen:
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cmd.Blit(tempTextureId, BuiltinRenderTextureType.CameraTarget);
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break;
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case OutPutType.rTexture:
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if (outPutRt != null)
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cmd.Blit(tempTextureId, outPutRt);
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break;
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case OutPutType.both:
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cmd.Blit(tempTextureId, BuiltinRenderTextureType.CameraTarget);
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if (outPutRt != null)
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cmd.Blit(tempTextureId, outPutRt);
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break;
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}
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// 释放临时纹理
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cmd.ReleaseTemporaryRT(tempTextureId);
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}
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context.ExecuteCommandBuffer(cmd);
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CommandBufferPool.Release(cmd);
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}
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}
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FogRenderPass fogRenderPass;
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public override void Create()
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{
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fogRenderPass = new FogRenderPass(setting);
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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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renderer.EnqueuePass(fogRenderPass);
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}
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}
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