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Emitter / Alpha bug ?

Posted: Thu Jun 10, 2010 6:10 pm
by osuire
I used image based emitters on the iMac screens , ant the corresponding areas translate into alpha.
Is this a bug ?
Image

Cheers,

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Olivier

Re: Emitter / Alpha bug ?

Posted: Thu Jun 10, 2010 7:06 pm
by Bubbaloo
I believe you can check the matte option in the emitter material to avoid this.

Re: Emitter / Alpha bug ?

Posted: Fri Jun 11, 2010 9:09 am
by osuire
Hi Bubaloo.

The Matte option does exactly what I don't want : I don't want to see the background in the area of this emitter.
In fact, it is like if the Matte option WAS activated , but I can still see the emitter image in the MXI.
In the PNG file, the areas of the screens are transparent (100% alpha), which does not make any sense.

If I enable Alpha for this material, I get the same Alpha, and don't even see the Emitter image.
:(

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Olivier

Re: Emitter / Alpha bug ?

Posted: Thu Jun 17, 2010 2:30 pm
by osuire
Hello ?

Re: Emitter / Alpha bug ?

Posted: Thu Jun 17, 2010 3:12 pm
by tom
It's a known bug and fixed for the next update. Meanwhile, there's a very easy workaround. Simply, add a base BSDF to the emitters and that's all.

Re: Emitter / Alpha bug ?

Posted: Thu Jun 17, 2010 5:26 pm
by osuire
Thanks Tom !

Did I hear "next release" ?
Any other cruchy info ?
:wink:

--
Olivier

Re: Emitter / Alpha bug ?

Posted: Mon Jul 19, 2010 10:28 pm
by tom
I was talking about 2.1 :) Could you please confirm the bug is now fixed? Thanks!