Weird lines in render

juguefre · Jun 2012

Hello.

I get this weird black lines in the far of the render in UDK and also when I do render in maya, but it doesn't show in the maya viewport.

I overlaped almost all the faces on top of each other using a mel script, can this be the problem?

thanks in advance for any help.

Visceral · Jun 2012

That ground plane, is that one mesh or is it split up into small squares?

JamesWild · Jun 2012

Is this texture padded? Have you coloured the space between UV islands to make sure it mipmaps nicely?

juguefre · Jun 2012

Here, this pics might answer your questions, JamesWild I think I did because it is showing the texture ok at close distance but is really bad if look far away. (sorry for my english)

JamesWild · Jun 2012

Fill the black space around your UV islands with colour - when viewed at a distance a lower res version of the same texture is used to prevent fuzzy, noisy, flickering artifacts due to there being too much detail to represent, but as a result the texels are bigger and bleed out of the polygon.

Here's an example:

The image will be reduced probably 8/16x in most circumstances, so if we reduce the image without colouring the padding and overlay the unwrap:

You can see that the padding has bled into the island, creating the seams you see.

juguefre · Jun 2012

Oh I understand you now! THANK YOU VERY MUCH SIR.

JamesWild · Jun 2012

No problem, good luck with your project!

Weird lines in render

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