GPU Lightmass & Virtual textures

[Francis_Lavergne]

Hi!

I’m using GPU lightmass in Unreal 4.27.2, with “Enable Virtual Texture lightmaps” set to true.

I’ve manage to reduce the “popping” of lightmap texture when moving the camera, fallowing this topic:

Lightmap popping with virtual texture lightmaps

hey, thanks for your answer. Sorry I’m not sure what you mean by “size of the texture pool” and "LOD is marked as important enough. Are we are talking about the general texture streaming pool, if so it’s far far from being reached… it’s like 500MB from 2000MB There are also no LOD’s in the scene, if you are talking about LOD’s for my assets ?

However, I have some issues with lightmaps in raytracing reflections.
I have some mirror in my scene and they really look awful until I turn the camera on the other side to load the lightmap textures.

Any idea how to force the loading of Virtual Textures (lightmap) in the reflections (or in the entier level)?

I would honestly just turn the Virtual Texture off, but the editor crash when a build GPU lightmass without it.

Thank you!