83 lines
2.9 KiB
C#
83 lines
2.9 KiB
C#
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//////////////////////////////////////////////////////
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// MK Glow Mip Buffer //
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// //
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// Created by Michael Kremmel //
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// www.michaelkremmel.de //
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// Copyright © 2021 All rights reserved. //
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//////////////////////////////////////////////////////
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Rendering;
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namespace MK.Glow
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{
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/// <summary>
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/// Renderbuffer based on a mip setup
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/// </summary>
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internal sealed class MipBuffer
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{
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private RenderTarget[] _renderTargets = new RenderTarget[PipelineProperties.renderBufferSize];
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internal RenderTarget[] renderTargets { get { return _renderTargets; } }
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public MipBuffer(string name, RenderPipeline renderPipeline)
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{
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if(renderPipeline == RenderPipeline.SRP)
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{
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for(int i = 0; i < PipelineProperties.renderBufferSize; i++)
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{
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_renderTargets[i].identifier = Shader.PropertyToID(name + i);
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#if UNITY_2018_2_OR_NEWER
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_renderTargets[i].renderTargetIdentifier = new RenderTargetIdentifier(renderTargets[i].identifier, 0, CubemapFace.Unknown, -1);
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#else
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_renderTargets[i].renderTargetIdentifier = new RenderTargetIdentifier(renderTargets[i].identifier);
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#endif
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}
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}
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else
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{
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for(int i = 0; i < PipelineProperties.renderBufferSize; i++)
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{
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renderTargets[i].identifier = Shader.PropertyToID(name + i);
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}
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}
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}
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/// <summary>
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/// Create a specific level of the the buffer
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/// </summary>
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/// <param name="renderContext"></param>
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/// <param name="level"></param>
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/// <param name="cmd"></param>
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/// <param name="format"></param>
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/// <param name="useComputeShaders"></param>
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internal void CreateTemporary(RenderContext[] renderContext, int level, CommandBuffer cmd, RenderTextureFormat format, bool useComputeShaders, RenderPipeline renderPipeline)
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{
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if(renderPipeline == RenderPipeline.SRP)
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{
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#if UNITY_2017_1_OR_NEWER
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cmd.GetTemporaryRT(renderTargets[level].identifier, renderContext[level].descriptor, FilterMode.Bilinear);
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#else
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cmd.GetTemporaryRT(renderTargets[level].identifier, renderContext[level].width, renderContext[level].height, 0, FilterMode.Bilinear, format, RenderTextureReadWrite.Default, 1, useComputeShaders);
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#endif
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}
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else
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{
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renderTargets[level].renderTexture = PipelineExtensions.GetTemporary(renderContext[level], format);
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}
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}
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/// <summary>
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/// Clear a specific level of the buffer
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/// </summary>
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/// <param name="cmd"></param>
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/// <param name="level"></param>
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internal void ClearTemporary(CommandBuffer cmd, int level, RenderPipeline renderPipeline)
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{
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if(renderPipeline == RenderPipeline.SRP)
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cmd.ReleaseTemporaryRT(renderTargets[level].identifier);
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else
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RenderTexture.ReleaseTemporary(renderTargets[level].renderTexture);
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}
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}
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}
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