void RenderAdditionalShadowmapAtlas(ref ScriptableRenderContext context, ref CullResults cullResults, ref LightData lightData, ref ShadowData shadowData)
{
List <VisibleLight> visibleLights = lightData.visibleLights;
bool additionalLightHasSoftShadows = false;
CommandBuffer cmd = CommandBufferPool.Get(k_RenderAdditionalLightShadows);
using (new ProfilingSample(cmd, k_RenderAdditionalLightShadows))
{
int shadowmapWidth = shadowData.additionalLightsShadowmapWidth;
int shadowmapHeight = shadowData.additionalLightsShadowmapHeight;
m_AdditionalLightsShadowmapTexture = RenderTexture.GetTemporary(shadowmapWidth, shadowmapHeight,
k_ShadowmapBufferBits, m_AdditionalShadowmapFormat);
m_AdditionalLightsShadowmapTexture.filterMode = FilterMode.Bilinear;
m_AdditionalLightsShadowmapTexture.wrapMode = TextureWrapMode.Clamp;
SetRenderTarget(cmd, m_AdditionalLightsShadowmapTexture, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store,
ClearFlag.Depth, Color.black, TextureDimension.Tex2D);
for (int i = 0; i < m_AdditionalShadowCastingLightIndices.Count; ++i)
{
int shadowLightIndex = m_AdditionalShadowCastingLightIndices[i];
VisibleLight shadowLight = visibleLights[shadowLightIndex];
if (m_AdditionalShadowCastingLightIndices.Count > 1)
{
ShadowUtils.ApplySliceTransform(ref m_AdditionalLightSlices[i], shadowmapWidth, shadowmapHeight);
}
var settings = new DrawShadowsSettings(cullResults, shadowLightIndex);
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex,
ref shadowData, m_AdditionalLightSlices[i].projectionMatrix, m_AdditionalLightSlices[i].resolution);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
ShadowUtils.RenderShadowSlice(cmd, ref context, ref m_AdditionalLightSlices[i], ref settings, m_AdditionalLightSlices[i].projectionMatrix, m_AdditionalLightSlices[i].viewMatrix);
additionalLightHasSoftShadows |= shadowLight.light.shadows == LightShadows.Soft;
}
SetupAdditionalLightsShadowReceiverConstants(cmd, ref shadowData);
}
// We share soft shadow settings for main light and additional lights to save keywords.
// So we check here if pipeline supports soft shadows and either main light or any additional light has soft shadows
// to enable the keyword.
// TODO: In PC and Consoles we can upload shadow data per light and branch on shader. That will be more likely way faster.
bool mainLightHasSoftShadows = shadowData.supportsMainLightShadows &&
lightData.mainLightIndex != -1 &&
visibleLights[lightData.mainLightIndex].light.shadows == LightShadows.Soft;
bool softShadows = shadowData.supportsSoftShadows && (mainLightHasSoftShadows || additionalLightHasSoftShadows);
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.AdditionalLightShadows, true);
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.SoftShadows, softShadows);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
void RenderMainLightCascadeShadowmap(ref ScriptableRenderContext context, ref CullingResults cullResults, ref LightData lightData, ref ShadowData shadowData)
{
int shadowLightIndex = lightData.mainLightIndex;
if (shadowLightIndex == -1)
{
return;
}
VisibleLight shadowLight = lightData.visibleLights[shadowLightIndex];
CommandBuffer cmd = CommandBufferPool.Get(k_RenderMainLightShadowmapTag);
using (new ProfilingSample(cmd, k_RenderMainLightShadowmapTag))
{
var settings = new ShadowDrawingSettings(cullResults, shadowLightIndex);
m_MainLightShadowmapTexture = RenderTexture.GetTemporary(shadowData.mainLightShadowmapWidth,
shadowData.mainLightShadowmapHeight, k_ShadowmapBufferBits, m_ShadowmapFormat);
m_MainLightShadowmapTexture.filterMode = FilterMode.Bilinear;
m_MainLightShadowmapTexture.wrapMode = TextureWrapMode.Clamp;
SetRenderTarget(cmd, m_MainLightShadowmapTexture, RenderBufferLoadAction.DontCare,
RenderBufferStoreAction.Store, ClearFlag.Depth, Color.black, TextureDimension.Tex2D);
for (int cascadeIndex = 0; cascadeIndex < m_ShadowCasterCascadesCount; ++cascadeIndex)
{
var splitData = settings.splitData;
splitData.cullingSphere = m_CascadeSplitDistances[cascadeIndex];
settings.splitData = splitData;
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex, ref shadowData, m_CascadeSlices[cascadeIndex].projectionMatrix, m_CascadeSlices[cascadeIndex].resolution);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
ShadowUtils.RenderShadowSlice(cmd, ref context, ref m_CascadeSlices[cascadeIndex],
ref settings, m_CascadeSlices[cascadeIndex].projectionMatrix, m_CascadeSlices[cascadeIndex].viewMatrix);
}
SetupMainLightShadowReceiverConstants(cmd, ref shadowData, shadowLight);
}
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.MainLightShadows, true);
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.MainLightShadowCascades, shadowData.mainLightShadowCascadesCount > 1);
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.SoftShadows, shadowLight.light.shadows == LightShadows.Soft && shadowData.supportsSoftShadows);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
void RenderMainLightCascadeShadowmap(ref ScriptableRenderContext context, ref CullResults cullResults, ref LightData lightData, ref ShadowData shadowData)
{
int shadowLightIndex = lightData.mainLightIndex;
if (shadowLightIndex == -1)
{
return;
}
VisibleLight shadowLight = lightData.visibleLights[shadowLightIndex];
Light light = shadowLight.light;
Debug.Assert(shadowLight.lightType == LightType.Directional);
if (light.shadows == LightShadows.None)
{
return;
}
Bounds bounds;
if (!cullResults.GetShadowCasterBounds(shadowLightIndex, out bounds))
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get(k_RenderMainLightShadowmapTag);
using (new ProfilingSample(cmd, k_RenderMainLightShadowmapTag))
{
m_ShadowCasterCascadesCount = shadowData.mainLightShadowCascadesCount;
int shadowResolution = ShadowUtils.GetMaxTileResolutionInAtlas(shadowData.mainLightShadowmapWidth, shadowData.mainLightShadowmapHeight, m_ShadowCasterCascadesCount);
float shadowNearPlane = light.shadowNearPlane;
Matrix4x4 view, proj;
var settings = new DrawShadowsSettings(cullResults, shadowLightIndex);
m_MainLightShadowmapTexture = RenderTexture.GetTemporary(shadowData.mainLightShadowmapWidth,
shadowData.mainLightShadowmapHeight, k_ShadowmapBufferBits, m_ShadowmapFormat);
m_MainLightShadowmapTexture.filterMode = FilterMode.Bilinear;
m_MainLightShadowmapTexture.wrapMode = TextureWrapMode.Clamp;
SetRenderTarget(cmd, m_MainLightShadowmapTexture, RenderBufferLoadAction.DontCare,
RenderBufferStoreAction.Store, ClearFlag.Depth, Color.black, TextureDimension.Tex2D);
bool success = false;
for (int cascadeIndex = 0; cascadeIndex < m_ShadowCasterCascadesCount; ++cascadeIndex)
{
success = ShadowUtils.ExtractDirectionalLightMatrix(ref cullResults, ref shadowData, shadowLightIndex, cascadeIndex, shadowResolution, shadowNearPlane, out m_CascadeSplitDistances[cascadeIndex], out m_CascadeSlices[cascadeIndex], out view, out proj);
if (success)
{
settings.splitData.cullingSphere = m_CascadeSplitDistances[cascadeIndex];
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex, ref shadowData, proj, shadowResolution);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
ShadowUtils.RenderShadowSlice(cmd, ref context, ref m_CascadeSlices[cascadeIndex], ref settings, proj, view);
}
}
if (success)
{
SetupMainLightShadowReceiverConstants(cmd, ref shadowData, shadowLight);
}
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
/// <inheritdoc/>
public override void Execute(ScriptableRenderer renderer, ScriptableRenderContext context, ref RenderingData renderingData)
{
if (renderer == null)
{
throw new ArgumentNullException("renderer");
}
if (!renderingData.shadowData.supportsMainCharacterShadows)
{
return;
}
LightData lightData = renderingData.lightData;
int shadowLightIndex = lightData.mainLightIndex;
if (shadowLightIndex == -1)
{
return;
}
VisibleLight shadowLight = lightData.visibleLights[shadowLightIndex];
ShadowData shadowData = renderingData.shadowData;
if (!GetVPMatrix(shadowLight.light))
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get(k_RenderMainCharacterShadowmapTag);
using (new ProfilingSample(cmd, k_RenderMainCharacterShadowmapTag))
{
m_MainCharacterShadowmapTexture = RenderTexture.GetTemporary(shadowData.mainCharacterShadowmapWidth,
shadowData.mainCharacterShadowmapHeight, k_ShadowmapBufferBits, m_ShadowmapFormat);
m_MainCharacterShadowmapTexture.filterMode = FilterMode.Bilinear;
m_MainCharacterShadowmapTexture.wrapMode = TextureWrapMode.Clamp;
m_MainCharacterShadowmapTexture.name = "m_MainCharacterShadowmapTexture";
SetRenderTarget(cmd, m_MainCharacterShadowmapTexture, RenderBufferLoadAction.DontCare,
RenderBufferStoreAction.Store, ClearFlag.Depth, Color.black, TextureDimension.Tex2D);
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex, ref shadowData, m_ProjMatrix, shadowData.mainCharacterShadowmapWidth);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
cmd.SetViewProjectionMatrices(m_ViewMatrix, m_ProjMatrix);
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
//foreach (var r in _Renderers)
//{
// for (int i = 0, imax = r.sharedMaterials.Length; i < imax; i++)
// {
// cmd.DrawRenderer(r, r.sharedMaterials[i], i, r.sharedMaterials[i].FindPass("ShadowCaster"));
// }
//}
ShadowSliceData slice = new ShadowSliceData()
{
offsetX = 0,
offsetY = 0,
resolution = shadowData.mainCharacterShadowmapWidth
};
DrawShadowsSettings settings = new DrawShadowsSettings(renderingData.cullResults, shadowLightIndex);
settings.splitData.cullingSphere = m_CullingSphere;
ShadowUtils.RenderShadowSlice(cmd, ref context, ref slice, ref settings, m_ProjMatrix, m_ViewMatrix);
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
SetupMainCharacterShadowReceiverConstants(cmd, ref shadowData, shadowLight);
}
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.MainCharacterShadows, true);
CoreUtils.SetKeyword(cmd, ShaderKeywordStrings.SoftShadows, shadowLight.light.shadows == LightShadows.Soft && shadowData.supportsSoftShadows);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
void RenderAdditionalShadowmapAtlas(ref ScriptableRenderContext context, ref CullResults cullResults, ref LightData lightData, ref ShadowData shadowData)
{
List <int> additionalLightIndices = lightData.additionalLightIndices;
List <VisibleLight> visibleLights = lightData.visibleLights;
int shadowCastingLightsCount = 0;
int additionalLightsCount = additionalLightIndices.Count;
for (int i = 0; i < additionalLightsCount; ++i)
{
VisibleLight shadowLight = visibleLights[additionalLightIndices[i]];
if (shadowLight.lightType == LightType.Spot && shadowLight.light.shadows != LightShadows.None)
{
shadowCastingLightsCount++;
}
}
if (shadowCastingLightsCount == 0)
{
return;
}
Matrix4x4 view, proj;
Bounds bounds;
CommandBuffer cmd = CommandBufferPool.Get(k_RenderAdditionalLightShadows);
using (new ProfilingSample(cmd, k_RenderAdditionalLightShadows))
{
// TODO: Add support to point light shadows. We make a simplification here that only works
// for spot lights and with max spot shadows per pass.
int atlasWidth = shadowData.additionalLightsShadowmapWidth;
int atlasHeight = shadowData.additionalLightsShadowmapHeight;
int sliceResolution = ShadowUtils.GetMaxTileResolutionInAtlas(atlasWidth, atlasHeight, shadowCastingLightsCount);
m_AdditionalLightsShadowmapTexture = RenderTexture.GetTemporary(shadowData.additionalLightsShadowmapWidth,
shadowData.additionalLightsShadowmapHeight, k_ShadowmapBufferBits, m_AdditionalShadowmapFormat);
m_AdditionalLightsShadowmapTexture.filterMode = FilterMode.Bilinear;
m_AdditionalLightsShadowmapTexture.wrapMode = TextureWrapMode.Clamp;
SetRenderTarget(cmd, m_AdditionalLightsShadowmapTexture, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store,
ClearFlag.Depth, Color.black, TextureDimension.Tex2D);
for (int i = 0; i < additionalLightsCount; ++i)
{
int shadowLightIndex = additionalLightIndices[i];
VisibleLight shadowLight = visibleLights[shadowLightIndex];
Light light = shadowLight.light;
// TODO: Add support to point light shadows
if (shadowLight.lightType != LightType.Spot || shadowLight.light.shadows == LightShadows.None)
{
continue;
}
if (!cullResults.GetShadowCasterBounds(shadowLightIndex, out bounds))
{
continue;
}
Matrix4x4 shadowTransform;
bool success = ShadowUtils.ExtractSpotLightMatrix(ref cullResults, ref shadowData,
shadowLightIndex, out shadowTransform, out view, out proj);
if (success)
{
// This way of computing the shadow slice only work for spots and with most 4 shadow casting lights per pass
// Change this when point lights are supported.
Debug.Assert(shadowCastingLightsCount <= 4 && shadowLight.lightType == LightType.Spot);
// TODO: We need to pass bias and scale list to shader to be able to support multiple
// shadow casting additional lights.
m_AdditionalLightSlices[i].offsetX = (i % 2) * sliceResolution;
m_AdditionalLightSlices[i].offsetY = (i / 2) * sliceResolution;
m_AdditionalLightSlices[i].resolution = sliceResolution;
m_AdditionalLightSlices[i].shadowTransform = shadowTransform;
m_AdditionalLightsShadowStrength[i] = light.shadowStrength;
if (shadowCastingLightsCount > 1)
{
ShadowUtils.ApplySliceTransform(ref m_AdditionalLightSlices[i], atlasWidth, atlasHeight);
}
var settings = new DrawShadowsSettings(cullResults, shadowLightIndex);
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex,
ref shadowData, proj, sliceResolution);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
ShadowUtils.RenderShadowSlice(cmd, ref context, ref m_AdditionalLightSlices[i], ref settings, proj, view);
}
}
SetupAdditionalLightsShadowReceiverConstants(cmd, ref shadowData);
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
/// <inheritdoc/>
public override void Execute(ScriptableRenderer renderer, ScriptableRenderContext context, ref RenderingData renderingData)
{
if (renderer == null)
{
throw new ArgumentNullException("renderer");
}
if (!renderingData.shadowData.supportsDeepShadowMaps)
{
return;
}
LightData lightData = renderingData.lightData;
int shadowLightIndex = lightData.mainLightIndex;
if (shadowLightIndex == -1)
{
return;
}
VisibleLight shadowLight = lightData.visibleLights[shadowLightIndex];
ShadowData shadowData = renderingData.shadowData;
if (!GetVPMatrix(shadowLight.light))
{
return;
}
if (null == _ResetCompute)
{
_ResetCompute = renderer.GetCompute(ComputeHandle.ResetDeepShadowDataCompute);
KernelResetBuffer = _ResetCompute.FindKernel("KernelResetBuffer");
}
CommandBuffer cmd = CommandBufferPool.Get(k_RenderDeepShadowCaster);
using (new ProfilingSample(cmd, k_RenderDeepShadowCaster))
{
int deepShadowMapsSize = shadowData.deepShadowMapsSize;
int deepShadowMapsDepth = shadowData.deepShadowMapsDepth;
// Reset
cmd.SetComputeBufferParam(_ResetCompute, KernelResetBuffer, "_CountBuffer", _CountBuffer);
cmd.SetComputeBufferParam(_ResetCompute, KernelResetBuffer, "_DataBuffer", _DataBuffer);
cmd.SetComputeIntParam(_ResetCompute, "_DeepShadowMapSize", deepShadowMapsSize);
cmd.SetComputeIntParam(_ResetCompute, "_DeepShadowMapDepth", deepShadowMapsDepth);
cmd.DispatchCompute(_ResetCompute, KernelResetBuffer, deepShadowMapsSize / 8, deepShadowMapsSize / 8, 1);
_Temp = RenderTexture.GetTemporary(deepShadowMapsSize, deepShadowMapsSize, 0, RenderTextureFormat.R8); //Without rt, the second row of the vp matrix is negated
// Cast
SetRenderTarget(cmd, _Temp, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.DontCare,
ClearFlag.Color, Color.black, TextureDimension.Tex2D);
cmd.SetViewport(new Rect(Vector2.zero, Vector2.one * deepShadowMapsSize));
Vector4 shadowBias = ShadowUtils.GetShadowBias(ref shadowLight, shadowLightIndex, ref shadowData, _ProjMatrix, shadowData.deepShadowMapsSize);
ShadowUtils.SetupShadowCasterConstantBuffer(cmd, ref shadowLight, shadowBias);
cmd.SetViewProjectionMatrices(_ViewMatrix, _ProjMatrix);
cmd.SetRandomWriteTarget(1, _CountBuffer);
cmd.SetRandomWriteTarget(2, _DataBuffer);
cmd.SetGlobalInt("_DeepShadowMapSize", deepShadowMapsSize);
cmd.SetGlobalInt("_DeepShadowMapDepth", deepShadowMapsDepth);
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
//foreach (var r in _Renderers)
//{
// for (int i = 0, imax = r.sharedMaterials.Length; i < imax; i++)
// {
// cmd.DrawRenderer(r, r.sharedMaterials[i], i, r.sharedMaterials[i].FindPass("DeepShadowCaster"));
// }
//}
ShadowSliceData slice = new ShadowSliceData()
{
offsetX = 0,
offsetY = 0,
resolution = deepShadowMapsSize,
};
cmd.SetGlobalMatrix("_DeepShadowMapsWorldToShadow", _DeepShadowMatrix);
DrawShadowsSettings settings = new DrawShadowsSettings(renderingData.cullResults, shadowLightIndex);
settings.splitData.cullingSphere = _CullingSphere;
cmd.EnableShaderKeyword("_DEEP_SHADOW_CASTER");
cmd.SetGlobalInt("_ShadowCasterZWrite", 0);
ShadowUtils.RenderShadowSlice(cmd, ref context, ref slice, ref settings, _ProjMatrix, _ViewMatrix);
cmd.DisableShaderKeyword("_DEEP_SHADOW_CASTER");
cmd.SetGlobalInt("_ShadowCasterZWrite", 1);
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
// For Resolve
SetupDeepShadowMapResolverConstants(cmd, ref shadowData, shadowLight);
cmd.ClearRandomWriteTargets();
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}