public static bool IsEnabledFor(
this DebugLightFilterMode mode,
GPULightType gpuLightType,
SpotLightShape spotLightShape
)
{
switch (gpuLightType)
{
case GPULightType.ProjectorBox:
case GPULightType.ProjectorPyramid:
case GPULightType.Spot:
{
switch (spotLightShape)
{
case SpotLightShape.Box: return((mode & DebugLightFilterMode.DirectSpotBox) != 0);
case SpotLightShape.Cone: return((mode & DebugLightFilterMode.DirectSpotCone) != 0);
case SpotLightShape.Pyramid: return((mode & DebugLightFilterMode.DirectSpotPyramid) != 0);
default: throw new ArgumentOutOfRangeException(nameof(spotLightShape));
}
}
case GPULightType.Tube: return((mode & DebugLightFilterMode.DirectTube) != 0);
case GPULightType.Point: return((mode & DebugLightFilterMode.DirectPunctual) != 0);
case GPULightType.Rectangle: return((mode & DebugLightFilterMode.DirectRectangle) != 0);
case GPULightType.Directional: return((mode & DebugLightFilterMode.DirectDirectional) != 0);
default: throw new ArgumentOutOfRangeException(nameof(gpuLightType));
}
}
//Packs a sort key for a light
public static uint PackLightSortKey(LightCategory lightCategory, GPULightType gpuLightType, LightVolumeType lightVolumeType, int lightIndex)
{
//We sort directional lights to be in the beginning of the list.
//This ensures that we can access directional lights very easily after we sort them.
uint isDirectionalMSB = gpuLightType == GPULightType.Directional ? 0u : 1u;
uint sortKey = (uint)isDirectionalMSB << 31 | (uint)lightCategory << 27 | (uint)gpuLightType << 22 | (uint)lightVolumeType << 17 | (uint)lightIndex;
return(sortKey);
}
public static bool MapLightType(LightArchetype la, LightType lt, out GPULightType gputype, out GPUShadowType shadowtype)
{
switch (la)
{
case LightArchetype.Punctual: return(MapLightType(lt, out gputype, out shadowtype));
case LightArchetype.Rectangle: gputype = GPULightType.Rectangle; shadowtype = GPUShadowType.Unknown; return(true);
case LightArchetype.Line: gputype = GPULightType.Line; shadowtype = GPUShadowType.Unknown; return(true);
default: gputype = GPULightType.Spot; shadowtype = GPUShadowType.Unknown; return(false); // <- probably not what you want
}
}
public static bool MapLightType(LightType lt, out GPULightType gputype, out GPUShadowType shadowtype)
{
switch (lt)
{
case LightType.Spot: gputype = GPULightType.Spot; shadowtype = GPUShadowType.Spot; return(true);
case LightType.Directional: gputype = GPULightType.Directional; shadowtype = GPUShadowType.Directional; return(true);
case LightType.Point: gputype = GPULightType.Point; shadowtype = GPUShadowType.Point; return(true);
default:
case LightType.Area: gputype = GPULightType.Rectangle; shadowtype = GPUShadowType.Unknown; return(false); // area lights by themselves can't be mapped to any GPU type
}
}
public static bool MapLightType(LightType lt, AdditionalLightData ald, out GPULightType gputype, out GPUShadowType shadowtype)
{
shadowtype = GPUShadowType.Unknown; // Default for all non-punctual lights
gputype = GPULightType.Spot;
switch (ald.archetype)
{
case LightArchetype.Punctual: return(MapLightType(lt, out gputype, out shadowtype));
case LightArchetype.Area: gputype = (ald.lightWidth > 0) ? GPULightType.Rectangle : GPULightType.Line; return(true);
case LightArchetype.Projector:
switch (lt)
{
case LightType.Directional: gputype = GPULightType.ProjectorOrtho; return(true);
case LightType.Spot: gputype = GPULightType.ProjectorPyramid; return(true);
default: Debug.Assert(false, "Projectors can only be Spot or Directional lights."); return(false);
}
default: return(false); // <- probably not what you want
}
}
void BuildLightData(CommandBuffer cmd, HDCamera hdCamera, HDRayTracingLights rayTracingLights, DebugDisplaySettings debugDisplaySettings)
{
// If no lights, exit
if (rayTracingLights.lightCount == 0)
{
ResizeLightDataBuffer(1);
return;
}
// Also we need to build the light list data
if (m_LightDataGPUArray == null || m_LightDataGPUArray.count != rayTracingLights.lightCount)
{
ResizeLightDataBuffer(rayTracingLights.lightCount);
}
m_LightDataCPUArray.Clear();
// Grab the shadow settings
var hdShadowSettings = hdCamera.volumeStack.GetComponent <HDShadowSettings>();
BoolScalableSetting contactShadowScalableSetting = HDAdditionalLightData.ScalableSettings.UseContactShadow(m_RenderPipeline.asset);
// Build the data for every light
for (int lightIdx = 0; lightIdx < rayTracingLights.hdLightArray.Count; ++lightIdx)
{
// Grab the additinal light data to process
HDAdditionalLightData additionalLightData = rayTracingLights.hdLightArray[lightIdx];
LightData lightData = new LightData();
// When the user deletes a light source in the editor, there is a single frame where the light is null before the collection of light in the scene is triggered
// the workaround for this is simply to add an invalid light for that frame
if (additionalLightData == null)
{
m_LightDataCPUArray.Add(lightData);
continue;
}
// Evaluate all the light type data that we need
LightCategory lightCategory = LightCategory.Count;
GPULightType gpuLightType = GPULightType.Point;
LightVolumeType lightVolumeType = LightVolumeType.Count;
HDLightType lightType = additionalLightData.type;
HDRenderPipeline.EvaluateGPULightType(lightType, additionalLightData.spotLightShape, additionalLightData.areaLightShape, ref lightCategory, ref gpuLightType, ref lightVolumeType);
// Fetch the light component for this light
additionalLightData.gameObject.TryGetComponent(out lightComponent);
// Build the processed light data that we need
ProcessedLightData processedData = new ProcessedLightData();
processedData.additionalLightData = additionalLightData;
processedData.lightType = additionalLightData.type;
processedData.lightCategory = lightCategory;
processedData.gpuLightType = gpuLightType;
processedData.lightVolumeType = lightVolumeType;
// Both of these positions are non-camera-relative.
processedData.distanceToCamera = (additionalLightData.gameObject.transform.position - hdCamera.camera.transform.position).magnitude;
processedData.lightDistanceFade = HDUtils.ComputeLinearDistanceFade(processedData.distanceToCamera, additionalLightData.fadeDistance);
processedData.volumetricDistanceFade = HDUtils.ComputeLinearDistanceFade(processedData.distanceToCamera, additionalLightData.volumetricFadeDistance);
processedData.isBakedShadowMask = HDRenderPipeline.IsBakedShadowMaskLight(lightComponent);
// Build a visible light
Color finalColor = lightComponent.color.linear * lightComponent.intensity;
if (additionalLightData.useColorTemperature)
{
finalColor *= Mathf.CorrelatedColorTemperatureToRGB(lightComponent.colorTemperature);
}
visibleLight.finalColor = finalColor;
visibleLight.range = lightComponent.range;
// This should be done explicitely, localtoworld matrix doesn't work here
localToWorldMatrix.SetColumn(3, lightComponent.gameObject.transform.position);
localToWorldMatrix.SetColumn(2, lightComponent.transform.forward);
localToWorldMatrix.SetColumn(1, lightComponent.transform.up);
localToWorldMatrix.SetColumn(0, lightComponent.transform.right);
visibleLight.localToWorldMatrix = localToWorldMatrix;
visibleLight.spotAngle = lightComponent.spotAngle;
int shadowIndex = additionalLightData.shadowIndex;
int screenSpaceShadowIndex = -1;
int screenSpaceChannelSlot = -1;
Vector3 lightDimensions = new Vector3(0.0f, 0.0f, 0.0f);
// Use the shared code to build the light data
m_RenderPipeline.GetLightData(cmd, hdCamera, hdShadowSettings, visibleLight, lightComponent, in processedData,
shadowIndex, contactShadowScalableSetting, isRasterization: false, ref lightDimensions, ref screenSpaceShadowIndex, ref screenSpaceChannelSlot, ref lightData);
// We make the light position camera-relative as late as possible in order
// to allow the preceding code to work with the absolute world space coordinates.
Vector3 camPosWS = hdCamera.mainViewConstants.worldSpaceCameraPos;
HDRenderPipeline.UpdateLightCameraRelativetData(ref lightData, camPosWS);
// Set the data for this light
m_LightDataCPUArray.Add(lightData);
}
// Push the data to the GPU
m_LightDataGPUArray.SetData(m_LightDataCPUArray);
}
public static bool IsSpot(this GPULightType lightType)
{
return(lightType == GPULightType.Spot || lightType == GPULightType.ProjectorBox || lightType == GPULightType.ProjectorPyramid);
}
public static bool IsAreaLight(this GPULightType lightType)
{
return(lightType == GPULightType.Rectangle || lightType == GPULightType.Tube);
}
void BuildLightData(CommandBuffer cmd, HDCamera hdCamera, List <HDAdditionalLightData> lightArray)
{
// Also we need to build the light list data
if (m_LightDataGPUArray == null || m_LightDataGPUArray.count != lightArray.Count)
{
ResizeLightDataBuffer(lightArray.Count);
}
// Build the data for every light
for (int lightIdx = 0; lightIdx < lightArray.Count; ++lightIdx)
{
var lightData = new LightData();
HDAdditionalLightData additionalLightData = lightArray[lightIdx];
// When the user deletes a light source in the editor, there is a single frame where the light is null before the collection of light in the scene is triggered
// the workaround for this is simply to add an invalid light for that frame
if (additionalLightData == null)
{
m_LightDataCPUArray[lightIdx] = lightData;
continue;
}
Light light = additionalLightData.gameObject.GetComponent <Light>();
// Both of these positions are non-camera-relative.
float distanceToCamera = (light.gameObject.transform.position - hdCamera.camera.transform.position).magnitude;
float lightDistanceFade = HDUtils.ComputeLinearDistanceFade(distanceToCamera, additionalLightData.fadeDistance);
bool contributesToLighting = ((additionalLightData.lightDimmer > 0) && (additionalLightData.affectDiffuse || additionalLightData.affectSpecular)) || (additionalLightData.volumetricDimmer > 0);
contributesToLighting = contributesToLighting && (lightDistanceFade > 0);
if (!contributesToLighting)
{
continue;
}
lightData.lightLayers = additionalLightData.GetLightLayers();
LightCategory lightCategory = LightCategory.Count;
GPULightType gpuLightType = GPULightType.Point;
GetLightGPUType(additionalLightData, light, ref gpuLightType, ref lightCategory);
lightData.lightType = gpuLightType;
lightData.positionRWS = light.gameObject.transform.position - hdCamera.camera.transform.position;
bool applyRangeAttenuation = additionalLightData.applyRangeAttenuation && (gpuLightType != GPULightType.ProjectorBox);
lightData.range = light.range;
if (applyRangeAttenuation)
{
lightData.rangeAttenuationScale = 1.0f / (light.range * light.range);
lightData.rangeAttenuationBias = 1.0f;
if (lightData.lightType == GPULightType.Rectangle)
{
// Rect lights are currently a special case because they use the normalized
// [0, 1] attenuation range rather than the regular [0, r] one.
lightData.rangeAttenuationScale = 1.0f;
}
}
else // Don't apply any attenuation but do a 'step' at range
{
// Solve f(x) = b - (a * x)^2 where x = (d/r)^2.
// f(0) = huge -> b = huge.
// f(1) = 0 -> huge - a^2 = 0 -> a = sqrt(huge).
const float hugeValue = 16777216.0f;
const float sqrtHuge = 4096.0f;
lightData.rangeAttenuationScale = sqrtHuge / (light.range * light.range);
lightData.rangeAttenuationBias = hugeValue;
if (lightData.lightType == GPULightType.Rectangle)
{
// Rect lights are currently a special case because they use the normalized
// [0, 1] attenuation range rather than the regular [0, r] one.
lightData.rangeAttenuationScale = sqrtHuge;
}
}
Color value = light.color.linear * light.intensity;
if (additionalLightData.useColorTemperature)
{
value *= Mathf.CorrelatedColorTemperatureToRGB(light.colorTemperature);
}
lightData.color = new Vector3(value.r, value.g, value.b);
lightData.forward = light.transform.forward;
lightData.up = light.transform.up;
lightData.right = light.transform.right;
if (lightData.lightType == GPULightType.ProjectorBox)
{
// Rescale for cookies and windowing.
lightData.right *= 2.0f / Mathf.Max(additionalLightData.shapeWidth, 0.001f);
lightData.up *= 2.0f / Mathf.Max(additionalLightData.shapeHeight, 0.001f);
}
else if (lightData.lightType == GPULightType.ProjectorPyramid)
{
// Get width and height for the current frustum
var spotAngle = light.spotAngle;
float frustumWidth, frustumHeight;
if (additionalLightData.aspectRatio >= 1.0f)
{
frustumHeight = 2.0f * Mathf.Tan(spotAngle * 0.5f * Mathf.Deg2Rad);
frustumWidth = frustumHeight * additionalLightData.aspectRatio;
}
else
{
frustumWidth = 2.0f * Mathf.Tan(spotAngle * 0.5f * Mathf.Deg2Rad);
frustumHeight = frustumWidth / additionalLightData.aspectRatio;
}
// Rescale for cookies and windowing.
lightData.right *= 2.0f / frustumWidth;
lightData.up *= 2.0f / frustumHeight;
}
if (lightData.lightType == GPULightType.Spot)
{
var spotAngle = light.spotAngle;
var innerConePercent = additionalLightData.GetInnerSpotPercent01();
var cosSpotOuterHalfAngle = Mathf.Clamp(Mathf.Cos(spotAngle * 0.5f * Mathf.Deg2Rad), 0.0f, 1.0f);
var sinSpotOuterHalfAngle = Mathf.Sqrt(1.0f - cosSpotOuterHalfAngle * cosSpotOuterHalfAngle);
var cosSpotInnerHalfAngle = Mathf.Clamp(Mathf.Cos(spotAngle * 0.5f * innerConePercent * Mathf.Deg2Rad), 0.0f, 1.0f); // inner cone
var val = Mathf.Max(0.0001f, (cosSpotInnerHalfAngle - cosSpotOuterHalfAngle));
lightData.angleScale = 1.0f / val;
lightData.angleOffset = -cosSpotOuterHalfAngle * lightData.angleScale;
// Rescale for cookies and windowing.
float cotOuterHalfAngle = cosSpotOuterHalfAngle / sinSpotOuterHalfAngle;
lightData.up *= cotOuterHalfAngle;
lightData.right *= cotOuterHalfAngle;
}
else
{
// These are the neutral values allowing GetAngleAnttenuation in shader code to return 1.0
lightData.angleScale = 0.0f;
lightData.angleOffset = 1.0f;
}
if (lightData.lightType != GPULightType.Directional && lightData.lightType != GPULightType.ProjectorBox)
{
// Store the squared radius of the light to simulate a fill light.
lightData.size = new Vector2(additionalLightData.shapeRadius * additionalLightData.shapeRadius, 0);
}
if (lightData.lightType == GPULightType.Rectangle || lightData.lightType == GPULightType.Tube)
{
lightData.size = new Vector2(additionalLightData.shapeWidth, additionalLightData.shapeHeight);
}
lightData.lightDimmer = lightDistanceFade * (additionalLightData.lightDimmer);
lightData.diffuseDimmer = lightDistanceFade * (additionalLightData.affectDiffuse ? additionalLightData.lightDimmer : 0);
lightData.specularDimmer = lightDistanceFade * (additionalLightData.affectSpecular ? additionalLightData.lightDimmer * hdCamera.frameSettings.specularGlobalDimmer : 0);
lightData.volumetricLightDimmer = lightDistanceFade * (additionalLightData.volumetricDimmer);
lightData.contactShadowIndex = -1;
lightData.cookieIndex = -1;
lightData.shadowIndex = -1;
lightData.rayTracedAreaShadowIndex = -1;
if (light != null && light.cookie != null)
{
// TODO: add texture atlas support for cookie textures.
switch (light.type)
{
case LightType.Spot:
lightData.cookieIndex = m_LightLoop.cookieTexArray.FetchSlice(cmd, light.cookie);
break;
case LightType.Point:
lightData.cookieIndex = m_LightLoop.cubeCookieTexArray.FetchSlice(cmd, light.cookie);
break;
}
}
else if (light.type == LightType.Spot && additionalLightData.spotLightShape != SpotLightShape.Cone)
{
// Projectors lights must always have a cookie texture.
// As long as the cache is a texture array and not an atlas, the 4x4 white texture will be rescaled to 128
lightData.cookieIndex = m_LightLoop.cookieTexArray.FetchSlice(cmd, Texture2D.whiteTexture);
}
else if (lightData.lightType == GPULightType.Rectangle && additionalLightData.areaLightCookie != null)
{
lightData.cookieIndex = m_LightLoop.areaLightCookieManager.FetchSlice(cmd, additionalLightData.areaLightCookie);
}
{
lightData.shadowDimmer = 1.0f;
lightData.volumetricShadowDimmer = 1.0f;
}
{
// fix up shadow information
lightData.shadowIndex = additionalLightData.shadowIndex;
}
// Value of max smoothness is from artists point of view, need to convert from perceptual smoothness to roughness
lightData.minRoughness = (1.0f - additionalLightData.maxSmoothness) * (1.0f - additionalLightData.maxSmoothness);
// No usage for the shadow masks
lightData.shadowMaskSelector = Vector4.zero;
{
// use -1 to say that we don't use shadow mask
lightData.shadowMaskSelector.x = -1.0f;
lightData.nonLightMappedOnly = 0;
}
// Set the data for this light
m_LightDataCPUArray[lightIdx] = lightData;
}
//Push the data to the GPU
m_LightDataGPUArray.SetData(m_LightDataCPUArray);
}
void GetLightGPUType(HDAdditionalLightData additionalData, Light light, ref GPULightType gpuLightType, ref LightCategory lightCategory)
{
lightCategory = LightCategory.Count;
gpuLightType = GPULightType.Point;
if (additionalData.lightTypeExtent == LightTypeExtent.Punctual)
{
lightCategory = LightCategory.Punctual;
switch (light.type)
{
case LightType.Spot:
switch (additionalData.spotLightShape)
{
case SpotLightShape.Cone:
gpuLightType = GPULightType.Spot;
break;
case SpotLightShape.Pyramid:
gpuLightType = GPULightType.ProjectorPyramid;
break;
case SpotLightShape.Box:
gpuLightType = GPULightType.ProjectorBox;
break;
default:
Debug.Assert(false, "Encountered an unknown SpotLightShape.");
break;
}
break;
case LightType.Directional:
gpuLightType = GPULightType.Directional;
break;
case LightType.Point:
gpuLightType = GPULightType.Point;
break;
default:
Debug.Assert(false, "Encountered an unknown LightType.");
break;
}
}
else
{
lightCategory = LightCategory.Area;
switch (additionalData.lightTypeExtent)
{
case LightTypeExtent.Rectangle:
gpuLightType = GPULightType.Rectangle;
break;
case LightTypeExtent.Tube:
gpuLightType = GPULightType.Tube;
break;
default:
Debug.Assert(false, "Encountered an unknown LightType.");
break;
}
}
}
//Unpacks a sort key for a light
public static void UnpackLightSortKey(uint sortKey, out LightCategory lightCategory, out GPULightType gpuLightType, out LightVolumeType lightVolumeType, out int lightIndex)
{
lightCategory = (LightCategory)((sortKey >> 27) & 0xF);
gpuLightType = (GPULightType)((sortKey >> 22) & 0x1F);
lightVolumeType = (LightVolumeType)((sortKey >> 17) & 0x1F);
lightIndex = (int)(sortKey & 0xFFFF);
}
void BuildLightData(CommandBuffer cmd, HDCamera hdCamera, HDRayTracingLights rayTracingLights, DebugDisplaySettings debugDisplaySettings)
{
// If no lights, exit
if (rayTracingLights.lightCount == 0)
{
ResizeLightDataBuffer(1);
return;
}
// Also we need to build the light list data
if (m_LightDataGPUArray == null || m_LightDataGPUArray.count != rayTracingLights.lightCount)
{
ResizeLightDataBuffer(rayTracingLights.lightCount);
}
m_LightDataCPUArray.Clear();
// Grab the shadow settings
var hdShadowSettings = hdCamera.volumeStack.GetComponent <HDShadowSettings>();
BoolScalableSetting contactShadowScalableSetting = HDAdditionalLightData.ScalableSettings.UseContactShadow(m_RenderPipeline.asset);
// Build the data for every light
HDLightRenderDatabase lightEntities = HDLightRenderDatabase.instance;
var processedLightEntity = new HDProcessedVisibleLight()
{
shadowMapFlags = HDProcessedVisibleLightsBuilder.ShadowMapFlags.None
};
var globalConfig = HDGpuLightsBuilder.CreateGpuLightDataJobGlobalConfig.Create(hdCamera, hdShadowSettings);
var shadowInitParams = m_RenderPipeline.currentPlatformRenderPipelineSettings.hdShadowInitParams;
for (int lightIdx = 0; lightIdx < rayTracingLights.hdLightEntityArray.Count; ++lightIdx)
{
// Grab the additinal light data to process
int dataIndex = lightEntities.GetEntityDataIndex(rayTracingLights.hdLightEntityArray[lightIdx]);
HDAdditionalLightData additionalLightData = lightEntities.hdAdditionalLightData[dataIndex];
LightData lightData = new LightData();
// When the user deletes a light source in the editor, there is a single frame where the light is null before the collection of light in the scene is triggered
// the workaround for this is simply to add an invalid light for that frame
if (additionalLightData == null)
{
m_LightDataCPUArray.Add(lightData);
continue;
}
// Evaluate all the light type data that we need
LightCategory lightCategory = LightCategory.Count;
GPULightType gpuLightType = GPULightType.Point;
LightVolumeType lightVolumeType = LightVolumeType.Count;
HDLightType lightType = additionalLightData.type;
HDRenderPipeline.EvaluateGPULightType(lightType, additionalLightData.spotLightShape, additionalLightData.areaLightShape, ref lightCategory, ref gpuLightType, ref lightVolumeType);
// Fetch the light component for this light
additionalLightData.gameObject.TryGetComponent(out lightComponent);
ref HDLightRenderData lightRenderData = ref lightEntities.GetLightDataAsRef(dataIndex);
// Build the processed light data that we need
processedLightEntity.dataIndex = dataIndex;
processedLightEntity.gpuLightType = gpuLightType;
processedLightEntity.lightType = additionalLightData.type;
processedLightEntity.distanceToCamera = (additionalLightData.transform.position - hdCamera.camera.transform.position).magnitude;
processedLightEntity.lightDistanceFade = HDUtils.ComputeLinearDistanceFade(processedLightEntity.distanceToCamera, lightRenderData.fadeDistance);
processedLightEntity.lightVolumetricDistanceFade = HDUtils.ComputeLinearDistanceFade(processedLightEntity.distanceToCamera, lightRenderData.volumetricFadeDistance);
processedLightEntity.isBakedShadowMask = HDRenderPipeline.IsBakedShadowMaskLight(lightComponent);
// Build a visible light
visibleLight.finalColor = LightUtils.EvaluateLightColor(lightComponent, additionalLightData);
visibleLight.range = lightComponent.range;
// This should be done explicitly, localToWorld matrix doesn't work here
localToWorldMatrix.SetColumn(3, lightComponent.gameObject.transform.position);
localToWorldMatrix.SetColumn(2, lightComponent.transform.forward);
localToWorldMatrix.SetColumn(1, lightComponent.transform.up);
localToWorldMatrix.SetColumn(0, lightComponent.transform.right);
visibleLight.localToWorldMatrix = localToWorldMatrix;
visibleLight.spotAngle = lightComponent.spotAngle;
int shadowIndex = additionalLightData.shadowIndex;
Vector3 lightDimensions = new Vector3(0.0f, 0.0f, 0.0f);
// Use the shared code to build the light data
HDGpuLightsBuilder.CreateGpuLightDataJob.ConvertLightToGPUFormat(
lightCategory, gpuLightType, globalConfig,
lightComponent.lightShadowCasterMode, lightComponent.bakingOutput,
visibleLight, processedLightEntity, lightRenderData, out var _, ref lightData);
m_RenderPipeline.gpuLightList.ProcessLightDataShadowIndex(cmd, shadowInitParams, lightType, lightComponent, additionalLightData, shadowIndex, ref lightData);
// We make the light position camera-relative as late as possible in order
// to allow the preceding code to work with the absolute world space coordinates.
Vector3 camPosWS = hdCamera.mainViewConstants.worldSpaceCameraPos;
HDRenderPipeline.UpdateLightCameraRelativetData(ref lightData, camPosWS);
// Set the data for this light
m_LightDataCPUArray.Add(lightData);
}
