[BUG REQ] Bidir Bugs

Sebastian · Post by **Sebastian** » Fri Aug 24, 2007 5:57 am

I know that this bug have been discussed very often, but I still want to request that this Bug has to be "killed".

I made some test to see the Problem with Bidir and here they are.

All Images with Hybrid and Metr.-Settings ON.

PS: If requ. I can load up the .blend-File of the Scene

Post by **OnoSendai** » Fri Aug 24, 2007 6:23 am

Hi Sebastian,
what Indigo version are these made with?

Sebastian · Post by **Sebastian** » Fri Aug 24, 2007 6:25 am

They are made with:

indigo_09_test4

Post by **OnoSendai** » Fri Aug 24, 2007 6:27 am

Ok.
Can you please make a much simpler testscene?
Preferably something with just one object (or two) that show the bug.

Sebastian · Post by **Sebastian** » Fri Aug 24, 2007 7:54 am

I don't know how I can Simplify this, i thougt the Bug was clear visible,

it's 1st the blend-null Material what still don't works

and second the Glaß-Material which has a stange Color....

Should I mark it ?

Kram1032 · Post by **Kram1032** » Fri Aug 24, 2007 8:01 am

Ono already said, if you'd render that null mat forever, it will clear up.
and the Glass (there is no "sz = ß"

) isn't quite obvious to see...
which mat settings for the bulb? does it have thickness (is it closed)?
Is it hollow (is there a smaller "bulb" mesh inside, with IoR 1 and higher percedence?)
what's your raybouncedepth and what're your max num consec rejetions?

CTZn · Post by **CTZn** » Fri Aug 24, 2007 11:03 am

isn't bulb made of a blend too ? Using some transparent dirt texture I'd say...

mrCarnivore · Post by **mrCarnivore** » Fri Aug 24, 2007 7:45 pm

Kram1032 wrote:Ono already said, if you'd render that null mat forever, it will clear up.

If tha null material still is pitch black after more than 3 hours, it's a bug and not lack of patience!

deltaepsylon · Post by **deltaepsylon** » Fri Aug 24, 2007 10:52 pm

i think kram was referring to the way that bidir is implemented in indigo, that in theory it will become transparent like its supposed to (the spider webs) if its rendered for infinite time. But that sounds mighty impractical.

Sebastian · Post by **Sebastian** » Sat Aug 25, 2007 1:14 am

Here are the Material-setups:

deltaepsylon · Post by **deltaepsylon** » Sat Aug 25, 2007 3:01 am

the lightbulb mat looks fine in the scrennie you gave...

CTZn · Post by **CTZn** » Sat Aug 25, 2007 3:15 am

are you sure ? I'm not used with blender but the outer faces looks to be under the inner ones, maybe the normals ARE inverted (that's not obvious to see as bulb is thin), maybe the ones you see going outside are from the inner part...

Kram1032 · Post by **Kram1032** » Sat Aug 25, 2007 6:26 am

you should try to make the normals shorter - by a tenth or more...
the normals should be shorter than the bulb's thick

Anyway... the bulb really looks strange...

DaveC · Post by **DaveC** » Sat Aug 25, 2007 6:35 am

Mark's suggestion is purely for appearance in the editor, of course, as the length of the normals is irrelevant to indigo. Isn't that right, Mark?

Kram1032 · Post by **Kram1032** » Sat Aug 25, 2007 6:51 am

yeah - I added that to CTZn's thoughts...
maybe, they indeed are inverted

[BUG REQ] Bidir Bugs

[BUG REQ] Bidir Bugs

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