Unreal Engine Issues

Foliage is not partially loaded after InstancedFoliageGridSize is changed by WorldPartitionFoliageBuilder commandlet

Changing the InstancedFoliageGridSize by the WorldPartitionFoliageBuilder commandlet will cause some of the foliage to not load correctly. ...

Nanite enabled Foliage stays visible when Foliage is set to Hide All

Nanite enabled Foliage stays visible when Foliage is set to Hide All. ...

Editor crashes when edit foliage assigned to data layer in foliage mode

Actor Foliage can't be added to Foliage Paint or Single with World Partition maps

Actor Foliage can't be added to Foliage Paint or Single with World Partition maps. ...

Instance overlap functions for Foliage Instanced Static Meshes detects instances inconsistently

Instance overlap functions for Foliage Instanced Static Meshes detects instances incorrectly. I was able to see this occur with both the Sphere and Box functions. In addition, I drew out debug sphe ...

Applying Transforms to Foliage causes the Foliage to flicker and become invisible when placed

Scale, rotating, or translating Foliage causes the Foliage to flicker and become invisible when placed. Making several adjustments then undoing the last change causes the foliage to reappear with th ...

Editor crashing with density scaling is enabled on foliage being placed on a terrain.

Created a new level and added a terrain. Added grass foliage and enabled density scaling located in the grass foliage settings mode. After placing foliage on terrain, the editor crashes. This is ...

[Feature Request] CVars for HISMC

Currently some (if not all or most) foliage CVars affect both foliage and HISMC. It would be nice to split this so that users can change the values of one without affecting the other. ...

Loading instanced static mesh causes memory leak in packaged game

The leaking variable is UInstancedStaticMeshComponent::InstanceDataBuffers. The memory block is passed to InitPerInstanceRenderData() via InstanceDataBuffers.Release(). But the function doesn't mana ...

The HISM will have double drawcalls when player opens r.Mobile.AllowDitheredLODTransition

Please check the Function GetDynamicMeshElements in HierarchicalInstancedStaticMesh.cpp. The  Function Traverse in GetDynamicMeshElements will always return two Lod levels, even the transition is f ...