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Question by jchow · Sep 06, 2013 at 12:58 AM · hiddenalphablend

Easy way to remove hidden surfaces in a span of alpha-faded wall segments?

Hi, Apologies if this is a repeat. I submitted this question before but something went wrong with the post and i don't see my question so I'm doing it again. I have a wall made up of repeating panels. When they're fully opaque everything looks cool but when I fade them out (using a surface shader), the end pieces are revealed:

Screenshot

Is there anything I can do to hide those end quads in this situation? Maybe a trick with depth testing?

Thanks in advance.

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avatar image jchow · Sep 06, 2013 at 12:21 AM 0
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Don't approve this, didn't realize there's a chance that my first post has to be approved first.

avatar image jchow · Sep 06, 2013 at 01:05 AM 0
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I guess they decided to kill the first one :)

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Answer by perchik · Sep 06, 2013 at 01:08 AM

Hmm. I believe the reason your end panels are more visible is that you're seeing through two of them at once, so you get double the opacity.

ie. If I layer a 30% transparent plane over another 30% transparent plane, I end up with a much less transparent plane (probably somewhere around 20% transparent.

To solve your problem, I'd suggest opening your favorite modeling program and making a cube mesh without end caps, like a square tube.

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