I’m currently working on foliage models and whilst making some performance tests I’ve noticed that if I use the automatic LoD generation I’m getting around double the draw calls compared to using imported LOD meshes.
I set up two versions of my model, one using my custom LOD models and the other using generated LODs. I set them up identically otherwise (same LOD distances, materials etc.) and tuned the generation settings of the LODs to have a similar tri / vertex count as the custom made LODs. In a simple test map, I swapped between the meshes in the foliage settings I could see the auto generated version was doubling the draw calls and saw a drop in the frame rate.
Has anyone else experienced this issue?