static int s_deferredDirectionalShadowKernel ;
static int s_deferredDirectionalShadow_Contact_Kernel ;
static int s_deferredContactShadowKernel ;
static ComputeBuffer s_LightVolumeDataBuffer = null ;
static ComputeBuffer s_ConvexBoundsBuffer = null ;
FrameSettings m_FrameSettings = null ;
RenderPipelineResources m_Resources = null ;
ContactShadows m_ContactShadows = null ;
bool m_EnableContactShadow = false ;
// Following is an array of material of size eight for all combination of keyword: OUTPUT_SPLIT_LIGHTING - LIGHTLOOP_TILE_PASS - SHADOWS_SHADOWMASK - USE_FPTL_LIGHTLIST/USE_CLUSTERED_LIGHTLIST - DEBUG_DISPLAY
Material [ ] m_deferredLightingMaterial ;
Material m_DebugViewTilesMaterial ;
Light m_CurrentSunLight ;
int m_CurrentSunLightShadowIndex = - 1 ;
LightData m_DominantLightData ;
bool m_CurrentSunLightContactShadow = false ;
float m_DominantLightValue ;
LightData m_DominantLightData ;
public Light GetCurrentSunLight ( ) { return m_CurrentSunLight ; }
s_deferredDirectionalShadowKernel = deferredDirectionalShadowComputeShader . FindKernel ( "DeferredDirectionalShadow" ) ;
s_deferredDirectionalShadow_Contact_Kernel = deferredDirectionalShadowComputeShader . FindKernel ( "DeferredDirectionalShadow_Contact" ) ;
s_deferredContactShadowKernel = deferredDirectionalShadowComputeShader . FindKernel ( "DeferredContactShadow" ) ;
for ( int variant = 0 ; variant < LightDefinitions . s_NumFeatureVariants ; variant + + )
{
public void NewFrame ( FrameSettings frameSettings )
{
m_FrameSettings = frameSettings ;
m_ContactShadows = VolumeManager . instance . stack . GetComponent < ContactShadows > ( ) ;
m_EnableContactShadow = m_FrameSettings . enableContactShadows & & m_ContactShadows . enable & & m_ContactShadows . length > 0 ;
// Cluster
{
return new Vector3 ( light . finalColor . r , light . finalColor . g , light . finalColor . b ) ;
}
bool GetDominantLightWithShadows ( AdditionalShadowData additionalShadowData , VisibleLight light , int lightIndex = - 1 )
{
float lightDominanceValue = light . screenRect . size . magnitude * light . light . intensity ;
if ( additionalShadowData = = null | | ! additionalShadowData . contactShadows | | light . light . shadows = = LightShadows . None )
return false ;
if ( lightDominanceValue < = m_DominantLightValue | | m_DominantLightValue = = Single . PositiveInfinity )
return false ;
if ( light . lightType = = LightType . Directional )
m_DominantLightValue = Single . PositiveInfinity ;
else
{
m_DominantLightData = m_lightList . lights [ lightIndex ] ;
m_DominantLightIndex = lightIndex ;
m_DominantLightValue = lightDominanceValue ;
}
return true ;
}
public bool GetDirectionalLightData ( CommandBuffer cmd , ShadowSettings shadowSettings , GPULightType gpuLightType , VisibleLight light , HDAdditionalLightData additionalData , AdditionalShadowData additionalShadowData , int lightIndex )
{
var directionalLightData = new DirectionalLightData ( ) ;
if ( diffuseDimmer < = 0.0f & & specularDimmer < = 0.0f )
return false ;
// Light direction for directional is opposite to the forward direction
directionalLightData . forward = light . light . transform . forward ;
// Rescale for cookies and windowing.
// Fallback to the first non shadow casting directional light.
m_CurrentSunLight = m_CurrentSunLight = = null ? light . light : m_CurrentSunLight ;
directionalLightData . contactShadowIndex = m_EnableContactShadow ? 1 : - 1 ;
if ( GetDominantLightWithShadows ( additionalShadowData , light ) )
directionalLightData . contactShadowIndex = 0 ;
m_lightList . directionalLights . Add ( directionalLightData ) ;
return true ;
int lightIndex , ref Vector3 lightDimensions )
{
var lightData = new LightData ( ) ;
ContactShadows contactShadows = VolumeManager . instance . stack . GetComponent < ContactShadows > ( ) ;
bool enableContactShadows = m_FrameSettings . enableContactShadows & & contactShadows . enable & & contactShadows . length > 0.0f ;
lightData . contactShadowIndex = enableContactShadows ? 1 : - 1 ;
lightData . positionWS = light . light . transform . position ;
// Setting 0 for invSqrAttenuationRadius mean we have no range attenuation, but still have inverse square attenuation.
lightData . shadowMaskSelector . x = - 1.0f ;
lightData . nonLightmappedOnly = 0 ;
}
lightData . contactShadowIndex = m_EnableContactShadow ? 1 : - 1 ;
GetDominantLightWithShadows ( additionalshadowData , light , m_lightList . lights . Count - 1 ) ;
return true ;
}
m_CurrentSunLight = null ;
m_CurrentSunLightShadowIndex = - 1 ;
m_DominantLightIndex = - 1 ;
m_CurrentSunLightContactShadow = false ;
m_DominantLightValue = 0 ;
var stereoEnabled = m_FrameSettings . enableStereo ;
var sortKeys = new uint [ lightCount ] ;
int sortCount = 0 ;
float biggestLight = 0 ;
int dominantLightDataIndex = 0 ;
for ( int lightIndex = 0 , numLights = cullResults . visibleLights . Count ; ( lightIndex < numLights ) & & ( sortCount < lightCount ) ; + + lightIndex )
{
var light = cullResults . visibleLights [ lightIndex ] ;
// to allow the preceding code to work with the absolute world space coordinates.
if ( ShaderConfig . s_CameraRelativeRendering ! = 0 )
{
// Caution: 'DirectionalLightData.positionWS' is camera-relative after this point.
// Caution: 'DirectionalLightData.positionWS' is camera-relative after this point.
if ( additionalShadowData ! = null & & additionalShadowData . contactShadows )
{
biggestLight = Single . PositiveInfinity ;
m_CurrentSunLightContactShadow = true ;
}
}
continue ;
}
// Punctual, area, projector lights - the rendering side.
if ( GetLightData ( cmd , shadowSettings , camera , gpuLightType , light , additionalLightData , additionalShadowData , lightIndex , ref lightDimensions ) )
{
int last = m_lightList . lights . Count - 1 ;
switch ( lightCategory )
{
case LightCategory . Punctual :
// to allow the preceding code to work with the absolute world space coordinates.
if ( ShaderConfig . s_CameraRelativeRendering ! = 0 )
{
int last = m_lightList . lights . Count - 1 ;
if ( additionalShadowData ! = null & & additionalShadowData . contactShadows & & lightDimensions . magnitude > biggestLight )
{
m_DominantLightData = m_lightList . lights [ m_lightList . lights . Count - 1 ] ;
m_DominantLightIndex = lightIndex ;
dominantLightDataIndex = last ;
biggestLight = lightDimensions . magnitude ;
}
}
}
m_DominantLightData = m_lightList . lights [ m_DominantLightIndex ] ;
m_lightList . lights [ dominantLightDataIndex ] = m_DominantLightData ;
m_lightList . lights [ m_DominantLightIndex ] = m_DominantLightData ;
}
// Sanity check
public void RenderDeferredDirectionalShadow ( HDCamera hdCamera , RTHandleSystem . RTHandle deferredShadowRT , RenderTargetIdentifier depthTexture , CommandBuffer cmd )
{
if ( ( m_CurrentSunLight = = null | | m_CurrentSunLight . GetComponent < AdditionalShadowData > ( ) = = null | | m_CurrentSunLightShadowIndex < 0 ) & & m_DominantLightIndex = = - 1 )
bool sunLightShadow = m_CurrentSunLight ! = null & & m_CurrentSunLight . GetComponent < AdditionalShadowData > ( ) ! = null & & m_CurrentSunLightShadowIndex > = 0 ;
if ( ! sunLightShadow & & m_DominantLightIndex = = - 1 )
{
cmd . SetGlobalTexture ( HDShaderIDs . _DeferredShadowTexture , RuntimeUtilities . whiteTexture ) ;
return ;
{
ContactShadows contactShadows = VolumeManager . instance . stack . GetComponent < ContactShadows > ( ) ;
bool enableContactShadows = m_FrameSettings . enableContactShadows & & contactShadows . enable & & contactShadows . length > 0.0f ;
Vector4 lightDirection ;
Vector4 lightDirection = Vector4 . zero ;
Vector4 lightPosition = Vector4 . zero ;
if ( enableContactShadows & & ( m_DominantLightIndex ! = - 1 | | m_CurrentSunLightContactShadow ) )
kernel = s_deferredDirectionalShadow_Contact_Kernel ;
if ( m_EnableContactShadow )
{
if ( sunLightShadow )
kernel = s_deferredDirectionalShadow_Contact_Kernel ;
else
kernel = s_deferredContactShadowKernel ;
}
if ( m_DominantLightIndex = = - 1 & & m_CurrentSunLight ! = null )
if ( m_CurrentSunLight ! = null )
lightDirection . w = 0 ;
lightDirection . w = 1 ;
else
if ( m_DominantLightIndex ! = - 1 )
lightDirection = m_DominantLightData . positionWS ;
lightDirection . w = 1 ;
lightPosition = m_DominantLightData . positionWS ;
lightPosition . w = 1 ;
lightDirection . w = 0 ;
if ( enableContactShadows )
if ( m_ContactShadows )
float contactShadowRange = Mathf . Clamp ( contactShadows . fadeDistance , 0.0f , contactShadows . maxDistance ) ;
float contactShadowFadeEnd = contactShadows . maxDistance ;
float contactShadowRange = Mathf . Clamp ( m_ContactShadows . fadeDistance , 0.0f , m_ContactShadows . maxDistance ) ;
float contactShadowFadeEnd = m_ContactShadows . maxDistance ;
Vector4 contactShadowParams = new Vector4 ( contactShadows . length , contactShadows . distanceScaleFactor , contactShadowFadeEnd , contactShadowOneOverFadeRange ) ;
Vector4 contactShadowParams = new Vector4 ( m_ContactShadows . length , m_ContactShadows . distanceScaleFactor , contactShadowFadeEnd , contactShadowOneOverFadeRange ) ;
cmd . SetComputeIntParam ( deferredDirectionalShadowComputeShader , HDShaderIDs . _DirectionalContactShadowSampleCount , contactShadows . sampleCount ) ;
cmd . SetComputeIntParam ( deferredDirectionalShadowComputeShader , HDShaderIDs . _DirectionalContactShadowSampleCount , m_ContactShadows . sampleCount ) ;
cmd . SetComputeVectorParam ( deferredDirectionalShadowComputeShader , HDShaderIDs . _PunctualLightPosition , lightPosition ) ;
cmd . SetComputeTextureParam ( deferredDirectionalShadowComputeShader , kernel , HDShaderIDs . _DeferredShadowTextureUAV , deferredShadowRT ) ;
cmd . SetComputeTextureParam ( deferredDirectionalShadowComputeShader , kernel , HDShaderIDs . _CameraDepthTexture , depthTexture ) ;
Antoine Lelievre
6 年前