/// <summary>
/// Construct a <see cref="RenderMeshDescription"/> using defaults from the given
/// <see cref="Renderer"/> and <see cref="Mesh"/> objects.
/// </summary>
/// <param name="renderer">The renderer object (e.g. a <see cref="MeshRenderer"/>) to get default settings from.</param>
/// <param name="mesh">The mesh to use and get default bounds from.</param>
/// <param name="sharedMaterials">The list of materials to render the entity with.
/// If the list is null or empty, <see cref="Renderer.GetSharedMaterials"/> will be used to obtain the list.
/// An explicit list can be supplied if you have already called <see cref="Renderer.GetSharedMaterials"/> previously,
/// or if you want to use different materials.</param>
/// <param name="subMeshIndex">The sub-mesh of the mesh to use for rendering. The corresponding material index
/// from <see cref="sharedMaterials"/> will be used as the material for that sub-mesh.</param>
public RenderMeshDescription(
Renderer renderer,
Mesh mesh,
List <Material> sharedMaterials = null,
int subMeshIndex = 0)
{
Debug.Assert(renderer != null, "Must have a non-null Renderer to create RenderMeshDescription.");
Debug.Assert(mesh != null, "Must have a non-null Mesh to create RenderMeshDescription.");
if (sharedMaterials is null)
{
sharedMaterials = new List <Material>(capacity: 10);
}
if (sharedMaterials.Count == 0)
{
renderer.GetSharedMaterials(sharedMaterials);
}
Debug.Assert(subMeshIndex >= 0 && subMeshIndex < sharedMaterials.Count,
"Sub-mesh index out of bounds, no matching material.");
var motionVectorGenerationMode = renderer.motionVectorGenerationMode;
var needMotionVectorPass =
(motionVectorGenerationMode == MotionVectorGenerationMode.Object) ||
(motionVectorGenerationMode == MotionVectorGenerationMode.ForceNoMotion);
RenderMesh = new RenderMesh
{
mesh = mesh,
material = sharedMaterials[subMeshIndex],
subMesh = subMeshIndex,
layer = renderer.gameObject.layer,
castShadows = renderer.shadowCastingMode,
receiveShadows = renderer.receiveShadows,
needMotionVectorPass = needMotionVectorPass,
};
RenderingLayerMask = renderer.renderingLayerMask;
FlipWinding = false;
MotionMode = motionVectorGenerationMode;
var staticLightingMode = RenderMeshUtility.StaticLightingModeFromRenderer(renderer);
var lightProbeUsage = renderer.lightProbeUsage;
LightProbeUsage = (staticLightingMode == StaticLightingMode.LightProbes)
? lightProbeUsage
: LightProbeUsage.Off;
}
private Material ConfigureHybridLightMapping(
Entity entity,
EntityManager entityManager,
Renderer renderer,
Material material)
{
#if USE_HYBRID_LIGHT_MAPS
var staticLightingMode = RenderMeshUtility.StaticLightingModeFromRenderer(renderer);
if (staticLightingMode == StaticLightingMode.LightMapped)
{
var lightMapRef = m_LightMapConversionContext.GetLightMapReference(renderer);
if (lightMapRef != null)
{
Material lightMappedMaterial =
m_LightMapConversionContext.GetLightMappedMaterial(material, lightMapRef);
entityManager.AddComponentData(entity,
new BuiltinMaterialPropertyUnity_LightmapST()
{
Value = renderer.lightmapScaleOffset
});
entityManager.AddComponentData(entity,
new BuiltinMaterialPropertyUnity_LightmapIndex()
{
Value = lightMapRef.LightMapIndex
});
entityManager.AddSharedComponentData(entity, lightMapRef.LightMaps);
return(lightMappedMaterial);
}
}
#endif
return(null);
}
