Cubemaps not blurring with Roughness

Open PixelSonic101 opened this issue 2 years ago • 3 comments

hlukt_testworld_playground0000 When generating a cubemap, it doesn't blur with the roughness.is there a way to fix this?

Feb 25 '23 15:02 PixelSonic101

You have to start the game with the -forceallmips startup parameter for rough materials to look good. Can you try running with that parameter?

Mar 02 '23 12:03 thexa4

What's the reason we need this parametr? It kilka hacky

Mar 03 '23 07:03 vaqxai

Roughness is implemented by sampling from the lower mip levels so those need to be in memory. By default the engine only loads the highest level so then your rough metal things look smooth.

Mar 03 '23 11:03 thexa4