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[BUG] Horizon line (bright band)

Posted: Wed Oct 11, 2006 8:58 am
by StompinTom
dunno if theres a post on this already, couldnt find one, but i remember reading about it earlier.
in an interior rendering im doing right now, there is a glowing line across the middle, i think where the horizon should be outside. its subtle but very noticable. any solutions?
i will post as soon as i get my host shit figured out.

Posted: Wed Oct 11, 2006 9:29 am
by rikokun
you mean something like this?
Image
done in new v6t4

Posted: Wed Oct 11, 2006 10:07 am
by StompinTom
yes. you can see it on the wall. in my render its a bit more prominent/visible than that. could it be the new code?

Posted: Wed Oct 11, 2006 10:56 am
by Kosmokrator
yes its a bug!!! :cry: :roll:

Posted: Wed Oct 11, 2006 9:32 pm
by 8bstudio
Hi.
The same for me...I think
Image

Posted: Thu Oct 12, 2006 12:50 am
by tungee
same here!
Only normal pathtracing (no mlt and bipt)

Image[/img]

Posted: Thu Oct 12, 2006 3:41 am
by StompinTom
Image
heres the example i was talking about.

Posted: Sat Oct 14, 2006 2:57 pm
by OnoSendai
Can someone do me a favour and find a real simple test case scene for this bug? less objects the better, and then email it to me at
nickamy AT paradise DOT net DOT nz

Posted: Tue Oct 17, 2006 4:41 pm
by joegiampaoli
Here's a test I did with indigo 6t5, not only do I get a horizon artifact but a vertical one.

NOTE: I gave it some burn to make it more noticable.

Will send this to you Ono, hope it helps

Image

Posted: Sun Oct 22, 2006 12:55 am
by u3dreal
Hi Nick,

Did you get any testscene concerning this bug ??

If not let me know and i will prepare one..

We have to get rid of it.. :D

cheers

u3dreal ;)

Posted: Sun Oct 22, 2006 1:51 am
by OnoSendai
I have joegiampaoli's test scene.
But if you have another test scene, that would be good thx.
The simpler the better as well :)

Posted: Sun Oct 22, 2006 2:29 am
by OnoSendai
Hmm.. this bug only seems to occur with physical sky. Can anyone give a counterexample?

Posted: Sun Oct 22, 2006 3:06 am
by Maluminas
Your statement seems right, ive never seen it when there is no sun. I discovered the bright vertical line too but joegiampaoli was faster than me :P My scene is quite complicated, ill try to simplify it and see if it still does it. If it does ill give it to you.

Posted: Sun Oct 22, 2006 3:57 am
by Zom-B
Ono-Sendai wrote:Hmm.. this bug only seems to occur with physical sky. Can anyone give a counterexample?
herewe go...

Posted: Sun Oct 22, 2006 4:47 am
by OnoSendai
ah yes.. it seems I spoke too soon :)