it's indeed depending on your exporter.
the parser uses, after testing many apps, the average conversion to
avoid extra corrections once loaded.
FYI not so long ago, it was required to rotate the loaded model 90
degrees and often were z inversed....
If you're texture is showing on the wrong side of the mesh then your
normals
must be pointing the wrong way. I would try applying a wireframe
material to
see this.
@David
if the normals were inversed, you would see only the inside of the
model.
note that if you use BitmapMaterial
you can pass "showNormals:true" and "debug:true"
the material will then draw the faces and visualise the normals.
Fabrice
On Aug 6, 2009, at 10:24 AM, David Parks wrote:
If you're texture is showing on the wrong side of the mesh then your
normals
must be pointing the wrong way. I would try applying a wireframe
material to
see this. And enable some camera movement so you can look around the
texture
and see it from different angles. There's an easy tutorial on camera
movement that you can do a quick copy and paste of, or if you would
like I
have a simple test class for loading meshes that I enabled camera
movement
in which I can post for your simplicity if you ask about it.
If it's just your object that's flipped then this seems pretty
normal to me.
In my limited experience I've noticed that my meshes show up in
different
orientations depending on the app I output them with. Different apps
use
different coordinate spaces (left handed, right handed, Z up, Y up,
etc). I
did notice some apps I have been playing with lately offer an option
to flip
Z and Y axis as "UP" in the export process. That feature will depend
on your
3D software. Otherwise just applying the necessary rotations when
you load
the mesh is the right approach as far as I know of.
Dave
-----Original Message-----
From: [email protected] [mailto:away3d-
[email protected]] On
Behalf Of charglerode
Sent: Thursday, August 06, 2009 2:16 PM
To: away3d.dev
Subject: [away3d] Re: OBJ flipped
I went back and checked it again and it seems possible that it is just
the texture that is flipped. Either way, has anybody encountered this?
On Aug 6, 12:09 am, charglerode <[email protected]> wrote:
I'm loading an OBJ file and it appears that the texture is flipped.
Upon further investigation I discovered that actually its my OBJ that
is flipped so it turn the texture appears flipped. Would my 3d
package
be causing this? The coordinate system is pretty standard as far as I
know. I have verified that my normals are correct. I've tried
exporting from both Silo and Modo.
Any ideas?
Thanks.
