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How can I get rid of jagged lines between the intersection of meshes that are far away from the camera. Using low FOV.

I am currently developing a 2.5d game that has a FOV of 15 to allow a little bit of a 3D feel while still maintaining clear shapes as the game has platformer movement and you need to clearly be able to judge where edges are etc.

The camera has been moved well away from the scene to compensate for the low FOV. This has caused a number or rendering issues. Mostly to do with shadows, some things not rendering correctly and others not rendering at all. Most of those problems have been overcome but there is are some jagged lines that appear between the intersection of meshes that we can't seem to get rid of.

Any tips would be greatly appreciated! I have added some screenshots to show the issue.

Here is the full scene, which is overall rendering pretty well, expect for a few jagged areas in the top left-middle area. alt text

Here is a close up of the issue, being a jagged line where the two meshes meet. alt text

The jagged lines are not there when you are closer to the meshes in the editor, it's only a problem with the distant camera.

Any other general suggestions for improving rendering with a distant camera would be great!

Product Version: UE 4.10
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asked Apr 09 '16 at 12:38 PM in Rendering

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JuicyCupcake
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I have no idea if this would work but a depth fade might be able to help. But being that both objects are opaque it probably won't. You might need to have a separate material for the foreground rocks so they can fade into the background ones.

https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/ExpressionReference/Depth/index.html

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answered Apr 09 '16 at 12:49 PM

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Tocs
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avatar image JuicyCupcake Apr 09 '16 at 01:04 PM

I'll have a look at this, though it might be a slightly complex solution :P I am hoping that there may be a console command that I haven't found yet that is LODing how meshes are rendered at a distance or something.

Thanks for the response!

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