89 lines
3.5 KiB
C#
89 lines
3.5 KiB
C#
using System;
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namespace UnityEngine.Rendering.Universal.Internal
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{
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/// <summary>
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/// Render all objects that have a 'DepthOnly' pass into the given depth buffer.
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///
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/// You can use this pass to prime a depth buffer for subsequent rendering.
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/// Use it as a z-prepass, or use it to generate a depth buffer.
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/// </summary>
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public class DepthOnlyPass : ScriptableRenderPass
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{
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int kDepthBufferBits = 32;
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private RenderTargetHandle depthAttachmentHandle { get; set; }
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internal RenderTextureDescriptor descriptor { get; private set; }
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FilteringSettings m_FilteringSettings;
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ShaderTagId m_ShaderTagId = new ShaderTagId("DepthOnly");
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/// <summary>
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/// Create the DepthOnlyPass
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/// </summary>
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public DepthOnlyPass(RenderPassEvent evt, RenderQueueRange renderQueueRange, LayerMask layerMask)
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{
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base.profilingSampler = new ProfilingSampler(nameof(DepthOnlyPass));
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m_FilteringSettings = new FilteringSettings(renderQueueRange, layerMask);
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renderPassEvent = evt;
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}
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/// <summary>
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/// Configure the pass
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/// </summary>
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public void Setup(
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RenderTextureDescriptor baseDescriptor,
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RenderTargetHandle depthAttachmentHandle)
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{
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this.depthAttachmentHandle = depthAttachmentHandle;
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baseDescriptor.colorFormat = RenderTextureFormat.Depth;
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baseDescriptor.depthBufferBits = kDepthBufferBits;
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// Depth-Only pass don't use MSAA
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baseDescriptor.msaaSamples = 1;
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descriptor = baseDescriptor;
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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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cmd.GetTemporaryRT(depthAttachmentHandle.id, descriptor, FilterMode.Point);
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ConfigureTarget(new RenderTargetIdentifier(depthAttachmentHandle.Identifier(), 0, CubemapFace.Unknown, -1));
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ConfigureClear(ClearFlag.All, Color.black);
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}
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/// <inheritdoc/>
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public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
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{
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// NOTE: Do NOT mix ProfilingScope with named CommandBuffers i.e. CommandBufferPool.Get("name").
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// Currently there's an issue which results in mismatched markers.
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CommandBuffer cmd = CommandBufferPool.Get();
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using (new ProfilingScope(cmd, ProfilingSampler.Get(URPProfileId.DepthPrepass)))
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{
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context.ExecuteCommandBuffer(cmd);
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cmd.Clear();
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var sortFlags = renderingData.cameraData.defaultOpaqueSortFlags;
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var drawSettings = CreateDrawingSettings(m_ShaderTagId, ref renderingData, sortFlags);
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drawSettings.perObjectData = PerObjectData.None;
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context.DrawRenderers(renderingData.cullResults, ref drawSettings, ref m_FilteringSettings);
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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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/// <inheritdoc/>
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public override void OnCameraCleanup(CommandBuffer cmd)
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{
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if (cmd == null)
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throw new ArgumentNullException("cmd");
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if (depthAttachmentHandle != RenderTargetHandle.CameraTarget)
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{
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cmd.ReleaseTemporaryRT(depthAttachmentHandle.id);
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depthAttachmentHandle = RenderTargetHandle.CameraTarget;
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}
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}
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}
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}
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