Exporting a cyberpunk 2077 like city from blender to Unreal Engine 5 : Part 4 : Lighting I

Follow these steps:

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4) You will have to restart UE5 to see its effects.

5) I could not use ray tracing : My Cpu is almost 9 years old, including my old video card GTX 1660. Either ray tracing consumes too much memory or my map is too big, consuming almost 12 gigs of ram. i had to disable raytracing and start dealing without it.

There were 450 materials created in total. All have been re-optimized and now there are 225, most of which are instances of a core material, like the following:

I also think that less new materials (and not instances) means less system calls (system call?), so instances instead of complete materials are a way to reduce resources to be used.

Few types of glass were created, before there were about 50 now 17 , most of which are reflections. The same can be said about other categories as well. A category was created for each type of material.

I can't say that all this change generated memory savings, but so far it seems so.