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LoD Faloff - Square Root - Bad behaviour after packaging

In PIE I get always good results - with SquareRoot/Linear faloff, but after packaging SquareRoot I get almost inverted result. I tried to play with scalability, but I cant replicate same "error" in editor. Is this behaviour is okay? With Linear Faloff everything is looks fine in PiE and in Packaged version,

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asked Nov 03 '14 at 08:12 PM in Bug Reports

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avatar image Adam Davis STAFF Nov 04 '14 at 09:33 PM

Hi zeOrb,

Can you walk me through your exact steps to reproduce this error? What commands did you use to view wireframe in PIE and in packaged game?

avatar image zeOrb Nov 10 '14 at 05:13 PM

Hello Adam, thanks for reply! Material is does not matter(But it is a pure unlit with single color in emissive material), I get same mesh error even with default material.

I recorded a video to show the nature of problem. It's a basic landscape and the only settings I changed in default setup - LOD's. Video

As I said, if I change LODFaloff back to Linear - I get good results in PIE and Packaged game both.

avatar image Jacky Nov 10 '14 at 05:58 PM

I can also confirm that SquareRoot as LOD falloff is causing strange artifacts in packaged game. MaxLOD Level set to -1, LOD Distance Factor set to 2. Here are the results i see in packaged game:

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The car and the character's collision with the landscape is correct but because of the LOD issue the surface looks below it's expected height. And there is an uglier artifact in the distance as i move.

lod_1.jpg (51.0 kB)
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avatar image Adam Davis STAFF Nov 11 '14 at 10:03 PM

Hi everyone,

How big are the landscapes you are using?

avatar image zeOrb Nov 12 '14 at 08:14 AM

300m and 500m with 63x63 quads/1x1 section settings

avatar image Adam Davis STAFF Nov 12 '14 at 04:04 PM

Unfortunately I am not seeing this on my end, Do you have any additional steps I can take to reproduce this effect on my end?

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Hi zeOrb,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance. Thank you.

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answered Nov 19 '14 at 03:45 PM

avatar image zeOrb Nov 19 '14 at 04:21 PM

Well, this issue is still here, I just don't use square root falloff anymore. Honestly, I don't know what else I can add to this issue >.>'

It's on Windows 8.1, with UE 4.5.1, Blank project/DesktopQuality/NoContent, Create Landscape - Default flat. Then the only settings I change - MaxLODLEvel: 5+, LODDistanceFactor: 5+, LODFalloff:SquareRoot.

Then package for windows - viola! I tried to do the same on second PC - same result. Maybe I should send you archive with both project and packaged version?

avatar image Adam Davis STAFF Nov 19 '14 at 04:56 PM

If you have a project that you don't mind sharing I would be happy to take a look.

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