106 lines
3.6 KiB
C#
106 lines
3.6 KiB
C#
using Unity.Toonshader;
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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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using UnityEngine.Rendering.HighDefinition;
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using UnityEngine.Rendering.RendererUtils;
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[HideInInspector]
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public class UTSHairShadowPass : DrawRenderersCustomPass
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{
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private const string Hair_Shadow_Distance_Prop_Name = "_HairShadowDistance";
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private const string Hair_Shadow_Distance_Scale_Prop_Name = "_HairShadowDistanceScaleFactor";
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private const string Hair_Shadow_Depth_Bias_Prop_Name = "_HairShadowDepthBias";
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private const string Hair_Shadow_FadeIn_Prop_Name = "_HairShadowFadeInDistance";
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private const string Hair_Shadow_Fade_Out_Prop_Name = "_HairShadowFadeOutDistance";
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private const string Output_RT_Name = "_HairShadowTex";
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private RTHandle _outputRTHandle;
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private bool _isEnable = false;
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protected override void Setup(ScriptableRenderContext renderContext, CommandBuffer cmd)
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{
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_outputRTHandle?.Release();
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_outputRTHandle = RTHandles.Alloc(Screen.width, Screen.height, colorFormat: GraphicsFormat.D32_SFloat, filterMode: FilterMode.Bilinear, wrapMode: TextureWrapMode.Clamp, name: Output_RT_Name);
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SetEnable(true);
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}
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protected override void Execute(CustomPassContext ctx)
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{
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var utsRenderer = ctx.hdCamera.volumeStack.GetComponent<UTSRenderer>();
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if (utsRenderer == null || !utsRenderer.enableHairShadow.value || !utsRenderer.enable.value)
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{
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SetEnable(false);
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return;
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}
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if (!_isEnable)
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{
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return;
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}
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SetShadowProperty(utsRenderer);
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if (_outputRTHandle != null)
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{
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Shader.SetGlobalTexture(Output_RT_Name, _outputRTHandle);
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CoreUtils.SetRenderTarget(ctx.cmd, _outputRTHandle, ClearFlag.DepthStencil);
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}
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var mask = RenderStateMask.Nothing;
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var stateBlock = new RenderStateBlock(mask)
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{
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depthState = new DepthState(depthWrite, depthCompareFunction),
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};
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var result = new RendererListDesc(HDShaderPassNames.s_DepthForwardOnlyName, ctx.cullingResults, ctx.hdCamera.camera)
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{
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renderQueueRange = GetRenderQueueRange(renderQueueType),
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sortingCriteria = sortingCriteria,
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excludeObjectMotionVectors = false,
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stateBlock = stateBlock,
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layerMask = layerMask,
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};
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CoreUtils.DrawRendererList(ctx.renderContext, ctx.cmd, ctx.renderContext.CreateRendererList(result));
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}
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private static void SetShadowProperty(UTSRenderer utsRenderer)
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{
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Shader.SetGlobalFloat(Hair_Shadow_Distance_Prop_Name, utsRenderer.shadowDistance.value);
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Shader.SetGlobalFloat(Hair_Shadow_Distance_Scale_Prop_Name, utsRenderer.shadowDistanceScale.value);
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Shader.SetGlobalFloat(Hair_Shadow_Depth_Bias_Prop_Name, utsRenderer.shadowDepthBias.value);
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Shader.SetGlobalFloat(Hair_Shadow_FadeIn_Prop_Name, utsRenderer.shadowFadeIn.value);
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Shader.SetGlobalFloat(Hair_Shadow_Fade_Out_Prop_Name, utsRenderer.shadowFadeOut.value);
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}
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protected override void Cleanup()
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{
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Release();
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}
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public void Release()
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{
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SetEnable(false);
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_outputRTHandle?.Release();
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}
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public void SetEnable(bool isEnable)
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{
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if (_isEnable != isEnable)
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{
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if (isEnable)
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{
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Shader.EnableKeyword("_HAIR_SHADOWS");
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}
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else
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{
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Shader.DisableKeyword("_HAIR_SHADOWS");
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}
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_isEnable = isEnable;
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}
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}
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} |