Any performance or optimization gurus here?
Trying to determine what is costing me performance when I enter PIE mode. I go from 60fps to about 40fps.
Attaching the results of a stat RHI for both standalone and PIE modes. PIE mode is the bottom with the higher draw calls.
When you experience a 20% or more performance hit in PIE mode, what are typically the culprints?
I have Raytracing turned off and have only 2 dynamic lights casting shadows, everything else is baked.
if you are in 4.26 or 4.27 there seems to be a bug where ‘continuous’ updates to your RVT will cause your polycount to spike.
Using a virtualheightmesh, it’s a steady ~145k tris, but as soon as I check that box on the RVT it shoots up to the several millions.
Seems to be fixed in UE5EA2.
Thanks. I have VT enabled but not using RVT!
My draw calls seem to more than double when entering PIE.
Pretty sure this is where I am losing performance.
But what causes draw calls to increase if your scene isn’t changing?