UE5: Shadow on Static Meshes without Lumen and VSM

Development Rendering
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Hello everyone

I have a problem with lighting and shadows in UE5 (5.3.1).

Since, I’m working on GTX1050 Ti, it’s hard to develop a project with Lumen and Virtual Shadow Maps. (I know about Scalability Setting, I just would like to find other way around).

I’ve added simple scene with my static meshes and Point light + Rect Light (both are Stationary), and switched off Lumen and VSM (Shadow Maps). Here are results:
Image 1
Image 2

I’m trying to achieve normal Real-Time lighting on my modular static meshes (cube->wall, cube->floor, etc), but strange shadowing effect appear when I rebuild project.

I don’t understand where exactly problem: is it my static meshes are broken? Is it possible to use Real-Time lighting without Lumen on UE5? Should I switch to baked light?

Sorry for this noob question. I’m quite new to game development :slight_smile:

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You can absolutely turn off Lumen and VSM.

But then it sounds like you’re getting static and dynamic lighting mixed up.

As far as I can see from your pics, you have built light. You don’t need to do this unless you’re going to use static lights.

Why not try with moveable lights first?

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Yes, it resolved my problem. I thought that stationary is dynamic lighting as well, and also for lights in game it is better to have stationary rather then moveable :slight_smile:

Thank you for advice! I will stick to moveable at this moment.

Anyway, I’m still wonder what’s a problem with stationary light in my case :thinking:.

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Static lighting is a whole topic. If you don’t specifically need it, don’t worry :slight_smile:

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