Migrating an open-world from Unity to UE

[AssemblerJohn]

@SteveElbows;708021

2. I would expect you to be able to achieve notably better performance with dense vegetation than you’ve managed with Unity, but as with everything there may be some tricks/knowledge required to get the best out of it.

3. Realtime GI not a strength of UE4, I am more likely to see posts featuring people moaning about it than anything positive. LPV’s dont get much love and nvidia’s VXGI requires you to build the engine from source and, apparently, is quite heavy in terms of performance.

4. What volumetric clouds are you using in Unity at the moment?

5. Yes, although as with anything they should be prepared for a learning curve and the possibility of having to redo some stuff once more knowledge about performance & visual results is gained.

2. I understand, thanks for the note. But as with everything, there’s always a catch

3. I see. But would there be any workaround for getting good-looking dynamic day/night cycle? Except buying Enlighten. And yes, if VXGI is a performance hog I can’t really use it. Did anyone managed to get some open-world day/night looking good in UE solving this issue? I know ‘ARK’ but maybe they have some internal solution there? I heard about the heightfield GI too but is it supported any more? Or was it optimized?

4. For the volumetric clouds we use: GitHub - kode80/kode80CloudsUnity3D: A realtime volumetric cloud rendering solution for Unity3D. maybe preparing to porting them but I wouldn’t bother with them too much at the moment. I think that the lighting problem is bigger at the moment

5. That would not be a problem.