// Check all light maps referenced within the current batch of converted Renderers.
// Any references to light maps that have already been inserted into a LightMaps array
// will be implemented by reusing the existing LightMaps object. Any leftover previously
// unseen (or changed = content hash changed) light maps are combined into a new LightMaps array.
public void ProcessLightMapsForConversion()
{
var lightmaps = LightmapSettings.lightmaps;
var uniqueIndices = m_UsedLightmapIndices
.Distinct()
.OrderBy(x => x)
.Where(x => x >= 0 && x != 65534 && x < lightmaps.Length)
.ToArray();
var colors = new List <Texture2D>();
var directions = new List <Texture2D>();
var shadowMasks = new List <Texture2D>();
var lightMapIndices = new List <int>();
// Each light map reference is converted into a LightMapKey which identifies the light map
// using the content hashes regardless of the index number. Previously encountered light maps
// should be found from the cache even if their index number has changed. New or changed
// light maps are placed into a new array.
for (var i = 0; i < uniqueIndices.Length; i++)
{
var index = uniqueIndices[i];
var lightmapData = lightmaps[index];
var key = new LightMapKey(lightmapData);
if (m_LightMapArrayCache.TryGetValue(key, out var lightMapRef))
{
m_LightMapReferences[index] = lightMapRef;
++m_NumLightMapCacheHits;
}
else
{
colors.Add(lightmapData.lightmapColor);
directions.Add(lightmapData.lightmapDir);
shadowMasks.Add(lightmapData.shadowMask);
lightMapIndices.Add(index);
++m_NumLightMapCacheMisses;
}
}
if (lightMapIndices.Count > 0)
{
#if DEBUG_LOG_LIGHT_MAP_CONVERSION
Debug.Log($"Creating new DOTS light map array from {lightMapIndices.Count} light maps.");
#endif
var lightMapArray = LightMaps.ConstructLightMaps(colors, directions, shadowMasks);
for (int i = 0; i < lightMapIndices.Count; ++i)
{
var lightMapRef = new LightMapReference
{
LightMaps = lightMapArray,
LightMapIndex = i,
};
m_LightMapReferences[lightMapIndices[i]] = lightMapRef;
m_LightMapArrayCache[new LightMapKey(colors[i], directions[i], shadowMasks[i])] = lightMapRef;
}
}
}
protected override void OnUpdate()
{
var globalToLocalLightmapMap = new Dictionary <int, int>();
#if UNITY_2020_2_OR_NEWER
var usedIndicies = new List <int>();
Entities.WithNone <TextMesh>().ForEach((MeshRenderer meshRenderer, MeshFilter meshFilter) =>
{
usedIndicies.Add(meshRenderer.lightmapIndex);
});
var setting = LightmapSettings.lightmaps;
var uniqueIndices = usedIndicies.Distinct().OrderBy(x => x).Where(x => x >= 0 && x != 65534 && x < setting.Length).ToArray();
var colors = new List <Texture2D>();
var directions = new List <Texture2D>();
var shadowMasks = new List <Texture2D>();
for (var i = 0; i < uniqueIndices.Length; i++)
{
var index = uniqueIndices[i];
colors.Add(setting[index].lightmapColor);
directions.Add(setting[index].lightmapDir);
shadowMasks.Add(setting[index].shadowMask);
globalToLocalLightmapMap.Add(index, i);
}
var lightMaps = LightMaps.ConstructLightMaps(colors, directions, shadowMasks);
#else
var lightMaps = new LightMaps();
#endif
var sourceMaterials = new List <Material>(10);
var createdMaterials = new Dictionary <MaterialLookupKey, Material>();
Entities.WithNone <TextMesh>().ForEach((MeshRenderer meshRenderer, MeshFilter meshFilter) =>
{
var mesh = meshFilter.sharedMesh;
meshRenderer.GetSharedMaterials(sourceMaterials);
if (!globalToLocalLightmapMap.TryGetValue(meshRenderer.lightmapIndex, out var lightmapIndex))
{
lightmapIndex = meshRenderer.lightmapIndex;
}
if (mesh != null)
{
Convert(DstEntityManager, this, AttachToPrimaryEntityForSingleMaterial, meshRenderer, mesh, sourceMaterials,
createdMaterials, lightMaps, lightmapIndex, meshRenderer.transform, mesh.bounds.ToAABB());
}
});
}
private static Material CreateLightMappedMaterial(Material material, LightMaps lightMaps)
{
var lightMappedMaterial = new Material(material);
lightMappedMaterial.name = $"{lightMappedMaterial.name}_Lightmapped_";
lightMappedMaterial.EnableKeyword("LIGHTMAP_ON");
lightMappedMaterial.SetTexture("unity_Lightmaps", lightMaps.colors);
lightMappedMaterial.SetTexture("unity_LightmapsInd", lightMaps.directions);
lightMappedMaterial.SetTexture("unity_ShadowMasks", lightMaps.shadowMasks);
if (lightMaps.hasDirections)
{
lightMappedMaterial.name = lightMappedMaterial.name + "_DIRLIGHTMAP";
lightMappedMaterial.EnableKeyword("DIRLIGHTMAP_COMBINED");
}
if (lightMaps.hasShadowMask)
{
lightMappedMaterial.name = lightMappedMaterial.name + "_SHADOW_MASK";
}
return(lightMappedMaterial);
}
public static void Convert(
EntityManager dstEntityManager,
GameObjectConversionSystem conversionSystem,
bool attachToPrimaryEntityForSingleMaterial,
Renderer meshRenderer,
Mesh mesh,
List <Material> materials,
Dictionary <MaterialLookupKey, Material> createdMaterials,
LightMaps lightMaps,
int lightmapIndex,
Transform root,
AABB localBounds)
{
var materialCount = materials.Count;
// Don't add RenderMesh (and other required components) unless both mesh and material are assigned.
if (mesh == null || materialCount == 0)
{
Debug.LogWarning(
"MeshRenderer is not converted because either the assigned mesh is null or no materials are assigned.",
meshRenderer);
return;
}
//@TODO: Transform system should handle RenderMeshFlippedWindingTag automatically. This should not be the responsibility of the conversion system.
float4x4 localToWorld = root.localToWorldMatrix;
var flipWinding = math.determinant(localToWorld) < 0.0;
if (materialCount == 1 && attachToPrimaryEntityForSingleMaterial)
{
var meshEntity = conversionSystem.GetPrimaryEntity(meshRenderer);
AddComponentsToEntity(
meshEntity,
dstEntityManager,
conversionSystem,
meshRenderer,
mesh,
materials,
createdMaterials,
flipWinding,
0,
lightMaps,
lightmapIndex,
localBounds);
}
else
{
var rootEntity = conversionSystem.GetPrimaryEntity(root);
for (var m = 0; m != materialCount; m++)
{
var meshEntity = conversionSystem.CreateAdditionalEntity(meshRenderer);
dstEntityManager.AddComponentData(meshEntity, new LocalToWorld {
Value = localToWorld
});
if (!dstEntityManager.HasComponent <Static>(meshEntity))
{
dstEntityManager.AddComponentData(meshEntity, new Parent {
Value = rootEntity
});
dstEntityManager.AddComponentData(meshEntity,
new LocalToParent {
Value = float4x4.identity
});
}
AddComponentsToEntity(
meshEntity,
dstEntityManager,
conversionSystem,
meshRenderer,
mesh,
materials,
createdMaterials,
flipWinding,
m,
lightMaps,
lightmapIndex,
localBounds);
}
}
}
private static void AddComponentsToEntity(
Entity entity,
EntityManager dstEntityManager,
GameObjectConversionSystem conversionSystem,
Renderer meshRenderer,
Mesh mesh,
List <Material> materials,
Dictionary <MaterialLookupKey, Material> createdMaterials,
bool flipWinding,
int id,
LightMaps lightMaps,
int lightmapIndex,
AABB localBounds)
{
var needMotionVectorPass = (meshRenderer.motionVectorGenerationMode == MotionVectorGenerationMode.Object) ||
(meshRenderer.motionVectorGenerationMode == MotionVectorGenerationMode.ForceNoMotion);
var renderMesh = new RenderMesh
{
mesh = mesh,
castShadows = meshRenderer.shadowCastingMode,
receiveShadows = meshRenderer.receiveShadows,
layer = meshRenderer.gameObject.layer,
subMesh = id,
needMotionVectorPass = needMotionVectorPass
};
var staticLightingMode = StaticLightingMode.None;
if (meshRenderer.lightmapIndex >= 65534 || meshRenderer.lightmapIndex < 0)
{
staticLightingMode = StaticLightingMode.LightProbes;
}
else if (meshRenderer.lightmapIndex >= 0)
{
staticLightingMode = StaticLightingMode.Lightmapped;
}
dstEntityManager.AddComponentData(entity, new PerInstanceCullingTag());
dstEntityManager.AddComponentData(entity, new RenderBounds {
Value = localBounds
});
var material = materials[id];
if (staticLightingMode == StaticLightingMode.Lightmapped && lightMaps.isValid)
{
conversionSystem.DeclareAssetDependency(meshRenderer.gameObject, material);
var localFlags = LightMappingFlags.Lightmapped;
if (lightMaps.hasDirections)
{
localFlags |= LightMappingFlags.Directional;
}
if (lightMaps.hasShadowMask)
{
localFlags |= LightMappingFlags.ShadowMask;
}
var key = new MaterialLookupKey
{
BaseMaterial = materials[id],
lightmaps = lightMaps,
Flags = localFlags
};
var lookUp = createdMaterials ?? new Dictionary <MaterialLookupKey, Material>();
if (lookUp.TryGetValue(key, out Material result))
{
material = result;
}
else
{
material = new Material(materials[id]);
material.name = $"{material.name}_Lightmapped_";
material.EnableKeyword("LIGHTMAP_ON");
material.SetTexture("unity_Lightmaps", lightMaps.colors);
material.SetTexture("unity_LightmapsInd", lightMaps.directions);
material.SetTexture("unity_ShadowMasks", lightMaps.shadowMasks);
if (lightMaps.hasDirections)
{
material.name = material.name + "_DIRLIGHTMAP";
material.EnableKeyword("DIRLIGHTMAP_COMBINED");
}
if (lightMaps.hasShadowMask)
{
material.name = material.name + "_SHADOW_MASK";
}
lookUp[key] = material;
}
dstEntityManager.AddComponentData(entity, new BuiltinMaterialPropertyUnity_LightmapST()
{
Value = meshRenderer.lightmapScaleOffset
});
dstEntityManager.AddComponentData(entity, new BuiltinMaterialPropertyUnity_LightmapIndex()
{
Value = lightmapIndex
});
dstEntityManager.AddSharedComponentData(entity, lightMaps);
}
else if (staticLightingMode == StaticLightingMode.LightProbes)
{
if (meshRenderer.lightProbeUsage == LightProbeUsage.CustomProvided)
{
dstEntityManager.AddComponent <CustomProbeTag>(entity);
}
else if (meshRenderer.lightProbeUsage == LightProbeUsage.BlendProbes &&
LightmapSettings.lightProbes != null &&
LightmapSettings.lightProbes.count > 0)
{
dstEntityManager.AddComponent <BlendProbeTag>(entity);
}
else
{
dstEntityManager.AddComponent <AmbientProbeTag>(entity);
}
}
renderMesh.material = material;
dstEntityManager.AddSharedComponentData(entity, renderMesh);
if (flipWinding)
{
dstEntityManager.AddComponent(entity, ComponentType.ReadWrite <RenderMeshFlippedWindingTag>());
}
conversionSystem.ConfigureEditorRenderData(entity, meshRenderer.gameObject, true);
#if ENABLE_HYBRID_RENDERER_V2
dstEntityManager.AddComponent(entity, ComponentType.ReadOnly <WorldToLocal_Tag>());
#if HDRP_9_0_0_OR_NEWER
// HDRP previous frame matrices (for motion vectors)
if (needMotionVectorPass)
{
dstEntityManager.AddComponent(entity, ComponentType.ReadWrite <BuiltinMaterialPropertyUnity_MatrixPreviousM>());
dstEntityManager.AddComponent(entity, ComponentType.ReadWrite <BuiltinMaterialPropertyUnity_MatrixPreviousMI_Tag>());
}
dstEntityManager.AddComponentData(entity, CreateMotionVectorsParams(ref renderMesh, ref meshRenderer));
#endif
dstEntityManager.AddComponentData(entity, new BuiltinMaterialPropertyUnity_RenderingLayer
{
Value = new uint4(meshRenderer.renderingLayerMask, 0, 0, 0)
});
dstEntityManager.AddComponentData(entity, new BuiltinMaterialPropertyUnity_WorldTransformParams
{
Value = flipWinding ? new float4(0, 0, 0, -1) : new float4(0, 0, 0, 1)
});
#if URP_9_0_0_OR_NEWER
// Default initialized light data for URP
dstEntityManager.AddComponentData(entity, new BuiltinMaterialPropertyUnity_LightData
{
Value = new float4(0, 0, 1, 0)
});
#endif
#endif
}