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Missing level geometry when rounding corners quickly.

Been having this problem since I had started with (I think) 4.10.0 (May have been earlier) and still having this problem on 4.11 preview 4.

Essentially, as I'm play-testing my level, I'm missing geometry as I'm rounding corners that doesn't appear right away then jumps into place. It's very quick, but still VERY noticeable while playing and takes away from the experience.

My level geometry is all spawned at runtime (on Begin Play). And there's not really a whole lot of geometry there, so if there are certain optimizations that are causing this that don't need to be there, I'm open to trying it. But the important thing is to get this problem resolved. Here are two back-to-back frames from a play-test video I took:

alt text alt text

As you can see, as I'm running around the corner and turning to the right, the walls don't immediately appear. This doesn't happen around EVERY corner, but it is frequent enough that it is totally distracting, and takes away from the experience considerably.

Any ideas? Anything I need to change? Any questions you need answered? I need to resolve this, and I have no idea where to look.

Thanks,

-Marc

Product Version: UE 4.11 Preview
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bad frame.png (494.9 kB)
bad frame 2.png (416.2 kB)
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asked Feb 24 '16 at 09:08 PM in Rendering

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Mbublitz
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answered Feb 24 '16 at 09:12 PM

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Bino
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avatar image Tim Hobson ♦♦ STAFF Feb 24 '16 at 10:03 PM

Also, this video I had made to demonstrate some of these culling methods from a while back. :)

avatar image Mbublitz Feb 25 '16 at 03:09 AM

I disabled culling in the project settings and that fixed my problem for now. I may come back to it at a later time and tweak it if I think it needs it, but there are no performance hits with my level by just disabling it. (In fact, I find that rendering quality itself has improved tremendously.)

Um... Tim? Don't see a link to a video. :) Maybe it's late, and I'm just missing something.

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