The hard part about using Perforce with UE4 is not about UE4 but about using Perforce itself. The UE4 integration is solid, simple and works like it should. The really hard part about getting Perforce working is to set up the P4 server and understanding how P4 is supposed to work. The Slate-UI is, as far as I have read…
Here are some things we had gathered during Beta: https://wiki.unrealengine.com/UE3_to_UE4_Transition_Guide Feel free to edit and add things you find that are achieved differently in UE4.
You can do the lightmaps in Max/Maya just as well as you could do them in UE3, or in UE2. That workflow is advanced however and far from advised. There are lots of differences between the engine versions, and a lot of features are not yet in. Lensflares indeed, but also things like fog volumes. Also because the lighting…