Re: [Maya2osg-users] Winding again!

[Javier T. <jav...@gm...>]

On Tue, Oct 18, 2011 at 6:26 PM, Jean-Sébastien Guay <
jea...@cm...> wrote:

> Hi guys,
>
> I think I found the case where winding will affect surfaces.
>
> An object scaled by -1 will have its normals inverted and winding will
> be inverted too. Maya sets the "opposite" mode on this. It makes it look
> OK in Maya. If, in the plugin, I set "flip normals if surface mode is
> opposite", then the plugin will invert the normals (* -1) but the
> winding will still be wrong, so they will be culled by CULL_FACE even
> though lighting is correct.
>

  I don't remember why is this "flip normals if surface mode is opposite"
option required. Probably Peter explained it to me some time ago, but I
don't remember. It was supposed to work automatically in FFP as well as in
GLSL mode.

  Peter can you throw some light here?


-- 
Javier Taibo