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Poser Technical F.A.Q (Last Updated: 2024 Nov 13 12:50 am)

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Subject: Help double sided


bjhaber ( ) posted Sun, 05 November 2006 at 5:42 PM · edited Thu, 14 November 2024 at 2:23 PM

Hi.  Trying to do some preview rendered animations in Poser but it only likes to show one side of a dragons wing...the other side becomes transparent.  I figure if I convert the geometry to double sided it should work.  But when I do in Deep Exploration it gets pretty jacked up...but that might be me exporting with wrong settings.

Any ideas would be welcome.

Thanks!


svdl ( ) posted Sun, 05 November 2006 at 6:56 PM

If you're using Poser 6, you could check the "Normals Forward" option in the wing material (Material Room).  That'll fix the problem without having to make the wings double sided.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

My gallery   My freestuff


bjhaber ( ) posted Sun, 05 November 2006 at 7:23 PM

Tried that...it just ends up flipping the transparent side.

 


Miss Nancy ( ) posted Mon, 06 November 2006 at 2:05 PM

you mean "add thickness"? vertex modellers (or P7) may be able to do that, but it would kill any morphs. odd that the original modeller wouldn't realise that a dragon wing would not be infinitely thin, but there you have it. anyway, it should render non-transparent, or even display non-transparent, depending on the display mode for the wings.



markschum ( ) posted Mon, 06 November 2006 at 11:01 PM

the back side of a polygon may disappear in the preview , but it will render .

try rendering single frames at points in your anim


diolma ( ) posted Tue, 07 November 2006 at 4:30 PM

Uh, oh.

Another confusion between modelers and Poser...

Poser does NOT read the "normal" info from any imported files (normals indicate "which way is out").  It ignores them completly, and re-calculates the normals from the winding order of the polys. One-sidedly.
So double-sided surfaces totally confuse it. (To see this in effecct, just load a"square" prop (NOT the single-sided one) from PoserProps-> Primitives library, scale it up (or zoom in), just to see it in close-up, then apply6 any texture to it. Render. In firefly, there will be black polys, in the P4 renderer there will be strange horizontal lines that stretch across the texture (and the rest of the scene)..

Poser assumes single sided polys on import - so if the polys of the model are 2-sided, it can't cope - it doesn't know which way is up...hence black splodges and/or horizontal lines.

Poser should get its act together (after all they still include the "square" prop, which is double-sided and doesn't work properly - in P6 yet), but til that happens, the only option is some severe mangling in a 3D app to "thicken" the wing and some (also severe) work in re-mapping it...

Unless I'm completely out of touch and have missed something fundamental - not unlikely...

But anyway,
Cheers,
Diolma



svdl ( ) posted Wed, 08 November 2006 at 7:13 AM

THere's a nifty little tool in freestuff that'll get you the thickness you want: Objaction Twoface.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

My gallery   My freestuff


diolma ( ) posted Thu, 09 November 2006 at 4:29 PM

Hey! Steven - I never knew what that app (Twoface) did! I thought (from it's description) that it made surfaces double-sided, so I steered well clear of it since I 1st saw it (knowing Poser's hate/hate relationship with 2-sided polys).

Are you telling me that this app actally creates "thickness"? As in duplicating polys to make them into miniature, inter-conncted boxes? Something that would take me a (dirty-word) of a long time to do in any of the 3D modelers I have...

I've downloaded it and will check it out tomorrow. I've been looking for something like this for a long time (if it does what I think your post implies)..

Cheers,
Diolma

(Who will contact and give huggz to Mav if it does what I hope...)



Miss Nancy ( ) posted Thu, 09 November 2006 at 7:42 PM

if it creates too much thickness, it would screw up uv-maps. but I recall adding thickness to poser stuff in carrara, and sometimes, if it was a minor amount, like .001 or .01 or something, the mapping would hold.



diolma ( ) posted Fri, 10 November 2006 at 2:25 PM · edited Fri, 10 November 2006 at 2:27 PM

Miss Nancy, thx for the input but I already appreciated that...
I make as many of my own props as I can (I'm not very good at it so the props aren't all that good, but that's by-the-by), so I do my own UV mapping (not very good at that, either..)

But, for some things...
I use a lot of dynamic clothing, 'cos I prefer the way it looks. But when it gets in to Poser it's paper-thin (and has to be in order for the cloth room to work properly), which is OK for some things but not for (eg) leather and other thick materials.

What I've wanted to be able to do for a long time is export a "clothified" and "draped" article of clothing, add thickness to it then re-import back into the Poser scene. A utility that could do that for me would be one of top items on my "wish-list"!

(Wish I could afford Carrera, but I'm unemployed...)

Cheers,
Diolma



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