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Can the backface of a mesh not be invisible?
Posted: Sun May 19, 2013 5:42 am
by Xxaxx Constantine
Just uploaded a mesh that I had been using in a different gaming engine.
That gaming engine had an option to show the backface.
This means I could make a pane of glass for a display case with a single square -- rather than a box.
Are there options that I need to set somewhere either in my 3d editing program, or in the upload, or in the model editing that will allow the back face to show the texture?
I hope the question makes sense.
Re: Can the backface of a mesh not be invisible?
Posted: Sun May 19, 2013 6:35 am
by Ilan Tochner
Hi Xxaxx,
The question makes sense but, as far as I know, meshes in Second Life derived viewers only display textures on one side of a mesh. (I'd be happy to be corrected if someone knows differently).
Re: Can the backface of a mesh not be invisible?
Posted: Sun May 19, 2013 7:17 am
by Johnny Night
Ilan Tochner wrote:The question makes sense but, as far as I know, meshes in Second Life derived viewers only display textures on one side of a mesh. (I'd be happy to be corrected if someone knows differently).
That's correct. A lot of programs have the ability to have double faced planes. Unfortunately Second Life and Opensim do not. The easiest way to fix your issue, Xxaxx, is to duplicate the plane used for the glass in your modeling program and flip the direction. You'll still use 8 vertices (like a box), but minus the additional 4 unseen faces. kinda like =
Re: Can the backface of a mesh not be invisible?
Posted: Sun May 19, 2013 6:19 pm
by Xxaxx Constantine
Thank you all for the replies.
This means that back culling is a natural part of opensim and not something I caused by my upload.
I will correct the model and re-upload.
Basically, I've been testing different 3ds to collada converts when this issue cropped up and I could tell whether this was caused by the converter or the model. Now I know.
Again, thanks for the help.