84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
// Crest Water System
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// Copyright © 2024 Wave Harmonic. All rights reserved.
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using UnityEngine;
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using UnityEngine.Experimental.Rendering;
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using UnityEngine.Rendering;
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namespace WaveHarmonic.Crest
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{
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sealed class UnderwaterEffectPass
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{
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readonly UnderwaterRenderer _Renderer;
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RTHandle _ColorTexture;
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RTHandle _ColorTarget;
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RTHandle _DepthTarget;
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bool _FirstRender = true;
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readonly System.Action<CommandBuffer> _CopyColorTexture;
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public UnderwaterEffectPass(UnderwaterRenderer renderer)
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{
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_Renderer = renderer;
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_CopyColorTexture = new(CopyColorTexture);
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}
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void CopyColorTexture(CommandBuffer buffer)
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{
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Blitter.BlitCameraTexture(buffer, _ColorTarget, _ColorTexture);
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CoreUtils.SetRenderTarget(buffer, _ColorTarget, _DepthTarget, ClearFlag.None);
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}
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public void Allocate(GraphicsFormat format)
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{
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// TODO: There may other settings we want to set or bring in. Not MSAA since this is a resolved texture.
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_ColorTexture = RTHandles.Alloc
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(
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Vector2.one,
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TextureXR.slices,
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dimension: TextureXR.dimension,
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colorFormat: format,
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depthBufferBits: DepthBits.None,
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useDynamicScale: true,
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wrapMode: TextureWrapMode.Clamp,
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name: "_Crest_UnderwaterCameraColorTexture"
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);
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}
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public void ReAllocate(RenderTextureDescriptor descriptor)
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{
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// Descriptor will not have MSAA bound.
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RenderPipelineCompatibilityHelper.ReAllocateIfNeeded(ref _ColorTexture, descriptor, name: "_Crest_UnderwaterCameraColorTexture");
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}
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public void Release()
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{
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_ColorTexture?.Release();
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_ColorTexture = null;
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}
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public void Execute(Camera camera, CommandBuffer buffer, RTHandle color, RTHandle depth, MaterialPropertyBlock mpb = null)
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{
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_Renderer.UpdateEffectMaterial(camera, _FirstRender);
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_ColorTarget = color;
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_DepthTarget = depth;
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CopyColorTexture(buffer);
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buffer.SetGlobalTexture(UnderwaterRenderer.ShaderIDs.s_CameraColorTexture, _ColorTexture);
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_Renderer.ExecuteEffect(camera, buffer, _CopyColorTexture, mpb);
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// The last pass (uber post) does not resolve the texture.
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// Although, this is wasteful if the pass after this does a resolve.
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// Possibly a bug with Unity?
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buffer.ResolveAntiAliasedSurface(color);
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_FirstRender = false;
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}
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}
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}
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