365 lines
17 KiB
C#
365 lines
17 KiB
C#
using UnityEngine.Experimental.Rendering;
|
|
using Unity.Mathematics;
|
|
|
|
namespace UnityEngine.Rendering.Universal
|
|
{
|
|
internal static class RendererLighting
|
|
{
|
|
public static readonly Color k_NormalClearColor = new Color(0.5f, 0.5f, 0.5f, 1.0f);
|
|
private static readonly string k_UsePointLightCookiesKeyword = "USE_POINT_LIGHT_COOKIES";
|
|
private static readonly string k_LightQualityFastKeyword = "LIGHT_QUALITY_FAST";
|
|
private static readonly string k_UseNormalMap = "USE_NORMAL_MAP";
|
|
private static readonly string k_UseShadowMap = "USE_SHADOW_MAP";
|
|
private static readonly string k_UseAdditiveBlendingKeyword = "USE_ADDITIVE_BLENDING";
|
|
private static readonly string k_UseVolumetric = "USE_VOLUMETRIC";
|
|
|
|
private static readonly string[] k_UseBlendStyleKeywords =
|
|
{
|
|
"USE_SHAPE_LIGHT_TYPE_0", "USE_SHAPE_LIGHT_TYPE_1", "USE_SHAPE_LIGHT_TYPE_2", "USE_SHAPE_LIGHT_TYPE_3"
|
|
};
|
|
|
|
private static readonly int[] k_BlendFactorsPropIDs =
|
|
{
|
|
Shader.PropertyToID("_ShapeLightBlendFactors0"),
|
|
Shader.PropertyToID("_ShapeLightBlendFactors1"),
|
|
Shader.PropertyToID("_ShapeLightBlendFactors2"),
|
|
Shader.PropertyToID("_ShapeLightBlendFactors3")
|
|
};
|
|
|
|
private static readonly int[] k_MaskFilterPropIDs =
|
|
{
|
|
Shader.PropertyToID("_ShapeLightMaskFilter0"),
|
|
Shader.PropertyToID("_ShapeLightMaskFilter1"),
|
|
Shader.PropertyToID("_ShapeLightMaskFilter2"),
|
|
Shader.PropertyToID("_ShapeLightMaskFilter3")
|
|
};
|
|
|
|
private static readonly int[] k_InvertedFilterPropIDs =
|
|
{
|
|
Shader.PropertyToID("_ShapeLightInvertedFilter0"),
|
|
Shader.PropertyToID("_ShapeLightInvertedFilter1"),
|
|
Shader.PropertyToID("_ShapeLightInvertedFilter2"),
|
|
Shader.PropertyToID("_ShapeLightInvertedFilter3")
|
|
};
|
|
|
|
public static readonly string[] k_ShapeLightTextureIDs =
|
|
{
|
|
"_ShapeLightTexture0",
|
|
"_ShapeLightTexture1",
|
|
"_ShapeLightTexture2",
|
|
"_ShapeLightTexture3"
|
|
};
|
|
|
|
private static GraphicsFormat s_RenderTextureFormatToUse = GraphicsFormat.R8G8B8A8_UNorm;
|
|
private static bool s_HasSetupRenderTextureFormatToUse;
|
|
|
|
private static readonly int k_SrcBlendID = Shader.PropertyToID("_SrcBlend");
|
|
private static readonly int k_DstBlendID = Shader.PropertyToID("_DstBlend");
|
|
private static readonly int k_CookieTexID = Shader.PropertyToID("_CookieTex");
|
|
private static readonly int k_PointLightCookieTexID = Shader.PropertyToID("_PointLightCookieTex");
|
|
|
|
private static readonly int k_L2DInvMatrix = Shader.PropertyToID("L2DInvMatrix");
|
|
private static readonly int k_L2DColor = Shader.PropertyToID("L2DColor");
|
|
private static readonly int k_L2DPosition = Shader.PropertyToID("L2DPosition");
|
|
private static readonly int k_L2DFalloffIntensity = Shader.PropertyToID("L2DFalloffIntensity");
|
|
private static readonly int k_L2DFalloffDistance = Shader.PropertyToID("L2DFalloffDistance");
|
|
private static readonly int k_L2DOuterAngle = Shader.PropertyToID("L2DOuterAngle");
|
|
private static readonly int k_L2DInnerAngle = Shader.PropertyToID("L2DInnerAngle");
|
|
private static readonly int k_L2DInnerRadiusMult = Shader.PropertyToID("L2DInnerRadiusMult");
|
|
private static readonly int k_L2DVolumeOpacity = Shader.PropertyToID("L2DVolumeOpacity");
|
|
private static readonly int k_L2DShadowIntensity = Shader.PropertyToID("L2DShadowIntensity");
|
|
private static readonly int k_L2DLightType = Shader.PropertyToID("L2DLightType");
|
|
private static readonly int k_L2DLightRenderingLayer = Shader.PropertyToID("L2DLightRenderingLayer");
|
|
|
|
// Light Batcher.
|
|
internal static LightBatch lightBatch = new LightBatch();
|
|
|
|
#if UNITY_EDITOR
|
|
[RuntimeInitializeOnLoadMethod]
|
|
static void ResetStaticsOnLoad()
|
|
{
|
|
s_HasSetupRenderTextureFormatToUse = false;
|
|
s_RenderTextureFormatToUse = GraphicsFormat.R8G8B8A8_UNorm;
|
|
lightBatch.Release();
|
|
lightBatch = new LightBatch();
|
|
}
|
|
#endif
|
|
|
|
internal static GraphicsFormat GetRenderTextureFormat()
|
|
{
|
|
if (!s_HasSetupRenderTextureFormatToUse)
|
|
{
|
|
// UUM-41070: We require `Linear | Render` but with the deprecated FormatUsage this was checking `Blend`
|
|
// For now, we keep checking for `Blend` until the performance hit of doing the correct checks is evaluated
|
|
if (SystemInfo.IsFormatSupported(GraphicsFormat.B10G11R11_UFloatPack32, GraphicsFormatUsage.Blend))
|
|
s_RenderTextureFormatToUse = GraphicsFormat.B10G11R11_UFloatPack32;
|
|
else if (SystemInfo.IsFormatSupported(GraphicsFormat.R16G16B16A16_SFloat, GraphicsFormatUsage.Blend))
|
|
s_RenderTextureFormatToUse = GraphicsFormat.R16G16B16A16_SFloat;
|
|
|
|
s_HasSetupRenderTextureFormatToUse = true;
|
|
}
|
|
|
|
return s_RenderTextureFormatToUse;
|
|
}
|
|
|
|
internal static void EnableBlendStyle(IRasterCommandBuffer cmd, int blendStyleIndex, bool enabled)
|
|
{
|
|
var keyword = k_UseBlendStyleKeywords[blendStyleIndex];
|
|
|
|
if (enabled)
|
|
cmd.EnableShaderKeyword(keyword);
|
|
else
|
|
cmd.DisableShaderKeyword(keyword);
|
|
}
|
|
|
|
internal static void DisableAllKeywords(IRasterCommandBuffer cmd)
|
|
{
|
|
foreach (var keyword in k_UseBlendStyleKeywords)
|
|
{
|
|
cmd.DisableShaderKeyword(keyword);
|
|
}
|
|
}
|
|
|
|
internal static void GetTransparencySortingMode(Renderer2DData rendererData, Camera camera, ref SortingSettings sortingSettings)
|
|
{
|
|
var mode = rendererData.transparencySortMode;
|
|
|
|
if (mode == TransparencySortMode.Default)
|
|
{
|
|
mode = camera.orthographic ? TransparencySortMode.Orthographic : TransparencySortMode.Perspective;
|
|
}
|
|
|
|
switch (mode)
|
|
{
|
|
case TransparencySortMode.Perspective:
|
|
sortingSettings.distanceMetric = DistanceMetric.Perspective;
|
|
break;
|
|
case TransparencySortMode.Orthographic:
|
|
sortingSettings.distanceMetric = DistanceMetric.Orthographic;
|
|
break;
|
|
default:
|
|
sortingSettings.distanceMetric = DistanceMetric.CustomAxis;
|
|
sortingSettings.customAxis = rendererData.transparencySortAxis;
|
|
break;
|
|
}
|
|
}
|
|
|
|
internal static bool CanCastShadows(Light2D light, int layerToRender)
|
|
{
|
|
return light.shadowsEnabled && light.shadowIntensity > 0 && light.IsLitLayer(layerToRender);
|
|
}
|
|
|
|
internal static bool CanCastVolumetricShadows(Light2D light, int endLayerValue)
|
|
{
|
|
return light.volumeIntensity > 0 && light.volumetricEnabled && light.renderVolumetricShadows && light.GetTopMostLitLayer() == endLayerValue;
|
|
}
|
|
|
|
internal static void SetLightShaderGlobals(IRasterCommandBuffer cmd, Light2DBlendStyle[] lightBlendStyles, int[] blendStyleIndices)
|
|
{
|
|
for (var i = 0; i < blendStyleIndices.Length; i++)
|
|
{
|
|
var blendStyleIndex = blendStyleIndices[i];
|
|
if (blendStyleIndex >= k_BlendFactorsPropIDs.Length)
|
|
break;
|
|
|
|
var blendStyle = lightBlendStyles[blendStyleIndex];
|
|
cmd.SetGlobalVector(k_BlendFactorsPropIDs[blendStyleIndex], blendStyle.blendFactors);
|
|
cmd.SetGlobalVector(k_MaskFilterPropIDs[blendStyleIndex], blendStyle.maskTextureChannelFilter.mask);
|
|
cmd.SetGlobalVector(k_InvertedFilterPropIDs[blendStyleIndex], blendStyle.maskTextureChannelFilter.inverted);
|
|
}
|
|
}
|
|
|
|
private static float GetNormalizedInnerRadius(Light2D light)
|
|
{
|
|
return light.pointLightInnerRadius / light.pointLightOuterRadius;
|
|
}
|
|
|
|
private static float GetNormalizedAngle(float angle)
|
|
{
|
|
return (angle / 360.0f);
|
|
}
|
|
|
|
private static void GetScaledLightInvMatrix(Light2D light, out Matrix4x4 retMatrix)
|
|
{
|
|
var outerRadius = light.pointLightOuterRadius;
|
|
var lightScale = Vector3.one;
|
|
var outerRadiusScale = new Vector3(lightScale.x * outerRadius, lightScale.y * outerRadius, lightScale.z * outerRadius);
|
|
|
|
var transform = light.transform;
|
|
|
|
var scaledLightMat = Matrix4x4.TRS(transform.position, transform.rotation, outerRadiusScale);
|
|
retMatrix = Matrix4x4.Inverse(scaledLightMat);
|
|
}
|
|
|
|
internal static void SetPerLightShaderGlobals(IRasterCommandBuffer cmd, Light2D light, int slot, bool isVolumetric, bool hasShadows, bool batchingSupported)
|
|
{
|
|
float intensity = light.intensity * light.color.a;
|
|
Color color = intensity * light.color;
|
|
color.a = 1.0f;
|
|
|
|
float volumeIntensity = light.volumetricEnabled ? light.volumeIntensity : 1.0f;
|
|
|
|
if (batchingSupported)
|
|
{
|
|
// Batched Params.
|
|
PerLight2D perLight = lightBatch.GetLight(slot);
|
|
perLight.Position = new float4(light.transform.position, light.normalMapDistance);
|
|
perLight.FalloffIntensity = light.falloffIntensity;
|
|
perLight.FalloffDistance = light.shapeLightFalloffSize;
|
|
perLight.Color = new float4(color.r, color.g, color.b, color.a);
|
|
perLight.VolumeOpacity = volumeIntensity;
|
|
perLight.LightType = (int)light.lightType;
|
|
perLight.ShadowIntensity = 1.0f;
|
|
if (hasShadows)
|
|
perLight.ShadowIntensity = isVolumetric ? (1 - light.shadowVolumeIntensity) : (1 - light.shadowIntensity);
|
|
lightBatch.SetLight(slot, perLight);
|
|
}
|
|
else
|
|
{
|
|
cmd.SetGlobalVector(k_L2DPosition, new float4(light.transform.position, light.normalMapDistance));
|
|
cmd.SetGlobalFloat(k_L2DFalloffIntensity, light.falloffIntensity);
|
|
cmd.SetGlobalFloat(k_L2DFalloffDistance, light.shapeLightFalloffSize);
|
|
cmd.SetGlobalColor(k_L2DColor, color);
|
|
cmd.SetGlobalFloat(k_L2DVolumeOpacity, volumeIntensity);
|
|
cmd.SetGlobalInt(k_L2DLightType, (int)light.lightType);
|
|
cmd.SetGlobalInt(k_L2DLightRenderingLayer, (int)light.renderingLayerMask.value);
|
|
cmd.SetGlobalFloat(k_L2DShadowIntensity, hasShadows ? (isVolumetric ? (1 - light.shadowVolumeIntensity) : (1 - light.shadowIntensity)) : 1);
|
|
}
|
|
|
|
if (hasShadows)
|
|
ShadowRendering.SetGlobalShadowProp(cmd);
|
|
}
|
|
|
|
internal static void SetPerPointLightShaderGlobals(IRasterCommandBuffer cmd, Light2D light, int slot, bool batchingSupported)
|
|
{
|
|
// This is used for the lookup texture
|
|
GetScaledLightInvMatrix(light, out var lightInverseMatrix);
|
|
|
|
var innerRadius = GetNormalizedInnerRadius(light);
|
|
var innerAngle = GetNormalizedAngle(light.pointLightInnerAngle);
|
|
var outerAngle = GetNormalizedAngle(light.pointLightOuterAngle);
|
|
var innerRadiusMult = 1 / (1 - innerRadius);
|
|
|
|
if (batchingSupported)
|
|
{
|
|
// Batched Params.
|
|
PerLight2D perLight = lightBatch.GetLight(slot);
|
|
perLight.InvMatrix = new float4x4(lightInverseMatrix.GetColumn(0), lightInverseMatrix.GetColumn(1), lightInverseMatrix.GetColumn(2), lightInverseMatrix.GetColumn(3));
|
|
perLight.InnerRadiusMult = innerRadiusMult;
|
|
perLight.InnerAngle = innerAngle;
|
|
perLight.OuterAngle = outerAngle;
|
|
lightBatch.SetLight(slot, perLight);
|
|
}
|
|
else
|
|
{
|
|
cmd.SetGlobalMatrix(k_L2DInvMatrix, lightInverseMatrix);
|
|
cmd.SetGlobalFloat(k_L2DInnerRadiusMult, innerRadiusMult);
|
|
cmd.SetGlobalFloat(k_L2DInnerAngle, innerAngle);
|
|
cmd.SetGlobalFloat(k_L2DOuterAngle, outerAngle);
|
|
}
|
|
}
|
|
|
|
internal static void SetCookieShaderProperties(Light2D light, MaterialPropertyBlock properties)
|
|
{
|
|
if (light.useCookieSprite && light.m_CookieSpriteTextureHandle.IsValid())
|
|
properties.SetTexture(light.lightType == Light2D.LightType.Sprite ? k_CookieTexID : k_PointLightCookieTexID, light.m_CookieSpriteTextureHandle);
|
|
}
|
|
|
|
private static void SetBlendModes(Material material, BlendMode src, BlendMode dst)
|
|
{
|
|
material.SetFloat(k_SrcBlendID, (float)src);
|
|
material.SetFloat(k_DstBlendID, (float)dst);
|
|
}
|
|
|
|
private static uint GetLightMaterialIndex(Light2D light, bool isVolume, bool useShadows)
|
|
{
|
|
var isPoint = light.isPointLight;
|
|
var bitIndex = 0;
|
|
var volumeBit = isVolume ? 1u << bitIndex : 0u;
|
|
bitIndex++;
|
|
var shapeBit = (isVolume && !isPoint) ? 1u << bitIndex : 0u;
|
|
bitIndex++;
|
|
var additiveBit = light.overlapOperation == Light2D.OverlapOperation.AlphaBlend ? 0u : 1u << bitIndex;
|
|
bitIndex++;
|
|
var pointCookieBit = (isPoint && light.lightCookieSprite != null && light.lightCookieSprite.texture != null) ? 1u << bitIndex : 0u;
|
|
bitIndex++;
|
|
var fastQualityBit = (light.normalMapQuality == Light2D.NormalMapQuality.Fast) ? 1u << bitIndex : 0u;
|
|
bitIndex++;
|
|
var useNormalMap = light.normalMapQuality != Light2D.NormalMapQuality.Disabled ? 1u << bitIndex : 0u;
|
|
bitIndex++;
|
|
var useShadowMap = useShadows ? 1u << bitIndex : 0u;
|
|
|
|
return fastQualityBit | pointCookieBit | additiveBit | shapeBit | volumeBit | useNormalMap | useShadowMap;
|
|
}
|
|
|
|
private static Material CreateLightMaterial(Renderer2DData rendererData, Light2D light, bool isVolume, bool useShadows)
|
|
{
|
|
if (!GraphicsSettings.TryGetRenderPipelineSettings<Renderer2DResources>(out var resources))
|
|
return null;
|
|
|
|
var isPoint = light.isPointLight;
|
|
|
|
Material material = CoreUtils.CreateEngineMaterial(resources.lightShader);
|
|
|
|
if (!isVolume)
|
|
{
|
|
if (light.overlapOperation == Light2D.OverlapOperation.Additive)
|
|
{
|
|
SetBlendModes(material, BlendMode.One, BlendMode.One);
|
|
material.EnableKeyword(k_UseAdditiveBlendingKeyword);
|
|
}
|
|
else
|
|
SetBlendModes(material, BlendMode.SrcAlpha, BlendMode.OneMinusSrcAlpha);
|
|
}
|
|
else
|
|
{
|
|
material.EnableKeyword(k_UseVolumetric);
|
|
|
|
if (light.lightType == Light2D.LightType.Point)
|
|
SetBlendModes(material, BlendMode.One, BlendMode.One);
|
|
else
|
|
SetBlendModes(material, BlendMode.SrcAlpha, BlendMode.One);
|
|
}
|
|
|
|
if (isPoint && light.lightCookieSprite != null && light.lightCookieSprite.texture != null)
|
|
material.EnableKeyword(k_UsePointLightCookiesKeyword);
|
|
|
|
if (light.normalMapQuality == Light2D.NormalMapQuality.Fast)
|
|
material.EnableKeyword(k_LightQualityFastKeyword);
|
|
|
|
if (light.normalMapQuality != Light2D.NormalMapQuality.Disabled)
|
|
material.EnableKeyword(k_UseNormalMap);
|
|
|
|
if (useShadows)
|
|
material.EnableKeyword(k_UseShadowMap);
|
|
|
|
return material;
|
|
}
|
|
|
|
internal static Material GetLightMaterial(this Renderer2DData rendererData, Light2D light, bool isVolume, bool useShadows)
|
|
{
|
|
var materialIndex = GetLightMaterialIndex(light, isVolume, useShadows);
|
|
|
|
if (!rendererData.lightMaterials.TryGetValue(materialIndex, out var material))
|
|
{
|
|
material = CreateLightMaterial(rendererData, light, isVolume, useShadows);
|
|
rendererData.lightMaterials[materialIndex] = material;
|
|
}
|
|
|
|
return material;
|
|
}
|
|
|
|
internal static short GetCameraSortingLayerBoundsIndex(this Renderer2DData rendererData)
|
|
{
|
|
SortingLayer[] sortingLayers = Light2DManager.GetCachedSortingLayer();
|
|
for (short i = 0; i < sortingLayers.Length; i++)
|
|
{
|
|
if (sortingLayers[i].id == rendererData.cameraSortingLayerTextureBound)
|
|
return (short)sortingLayers[i].value;
|
|
}
|
|
|
|
return short.MinValue;
|
|
}
|
|
}
|
|
}
|