101 lines
4.3 KiB
C#
101 lines
4.3 KiB
C#
using UnityEngine.Experimental.Rendering;
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using Unity.Collections;
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using Unity.Mathematics;
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using static Unity.Mathematics.math;
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namespace UnityEngine.Rendering.HighDefinition
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{
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public partial class WaterSurface
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{
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#region Water Deformation
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/// <summary>
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/// Specifies if the water surfaces supports local deformations.
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/// </summary>
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public bool deformation = false;
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/// <summary>
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/// Specifies the resolution of the deformation texture used to represent the deformation area.
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/// </summary>
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[Tooltip("Specifies the resolution of the deformation texture used to represent the deformation area.")]
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public WaterDecalRegionResolution deformationRes = WaterDecalRegionResolution.Resolution512;
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#endregion
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/// <summary>
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/// Function that returns the deformation buffer for the water surface. If the feature is disabled or the resource is not available the function returns null.
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/// </summary>
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/// <seealso cref="WaterSurface.GetDecalRegion"/>
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/// <returns>A single channgel texture that holds the surface deformation of the water surface.</returns>
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public Texture GetDeformationBuffer()
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{
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return deformation ? deformationBuffer : null;
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}
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// GPU deformation data
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internal RTHandle deformationBuffer = null;
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internal RTHandle deformationSGBuffer = null;
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// CPU Deformation data
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internal AsyncTextureSynchronizer<half> deformationBufferSychro = new AsyncTextureSynchronizer<half>(GraphicsFormat.R16_SFloat);
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void FillWaterDeformationData(ref WaterSimSearchData wsd)
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{
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var system = HDRenderPipeline.currentPipeline.waterSystem;
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// Water Mask
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if (system.m_ActiveDeformation && deformation && deformationBufferSychro.TryGetBuffer(out var deformationBuffer) && deformationBuffer.Length > 0)
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{
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wsd.activeDeformation = true;
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wsd.deformationBuffer = deformationBuffer;
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wsd.deformationResolution = deformationBufferSychro.CurrentResolution();
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}
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else
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{
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wsd.activeDeformation = false;
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wsd.deformationBuffer = system.m_DefaultDeformationBuffer;
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}
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Matrix4x4 worldToWater = simulation.rendering.worldToWaterMatrix;
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wsd.waterForwardXZ = float2(worldToWater.m00, worldToWater.m02);
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}
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internal void CheckDeformationResources()
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{
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if (deformation)
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{
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int resolution = (int)deformationRes;
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if (deformationBuffer != null && deformationBuffer.rt.width != resolution)
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ReleaseDeformationResources();
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if (deformationBuffer == null)
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{
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deformationBuffer = RTHandles.Alloc(resolution, resolution, 1, dimension: TextureDimension.Tex2D, colorFormat: GraphicsFormat.R16_SFloat, enableRandomWrite: true, wrapMode: TextureWrapMode.Clamp, name: "Water Deformation");
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deformationSGBuffer = RTHandles.Alloc(resolution, resolution, 1, dimension: TextureDimension.Tex2D, colorFormat: GraphicsFormat.R16G16_SFloat, enableRandomWrite: true, wrapMode: TextureWrapMode.Clamp, name: "Water Deformation SG");
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}
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}
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else if (deformationBuffer != null)
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ReleaseDeformationResources();
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}
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internal void ReleaseDeformationResources()
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{
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RTHandles.Release(deformationBuffer);
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RTHandles.Release(deformationSGBuffer);
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deformationBuffer = null;
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deformationSGBuffer = null;
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// CPU Simulation data
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deformationBufferSychro.ReleaseATSResources();
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}
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internal Texture GetDeformationBuffer(WaterSystem system, bool frameSetting, Texture defaultValue = null)
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{
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return frameSetting && system.m_ActiveDeformation && deformation ? deformationBuffer : defaultValue;
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}
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internal Texture GetDeformationNormalBuffer(WaterSystem system, bool frameSetting, Texture defaultValue = null)
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{
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return frameSetting && system.m_ActiveDeformation && deformation ? deformationSGBuffer : defaultValue;
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}
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}
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}
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