Hi Tom,
Your model works with texture for me, in osg 3.4.0 as well as 3.6.5 with
the following commands:
sed -E "s#(f [0-9]+/[0-9]+)/0 ([0-9]+/[0-9]+)/0 ([0-9]+/[0-9]+)/0#\1 \2
\3#" "Data2.obj" > noNormals.obj
osgviewer -O noRotation noNormals.obj
Laurens.
On Wed, Jan 15, 2020 at 12:24 PM 'Tom Pollok' via OpenSceneGraph Users <
osg-us...@googlegroups.com> wrote:
> Hello Robert,
>
> to test it with my old osg version, i fixed the obj file such it does not
> contain any indices to normals anymore, as there are no normals.
> This indeed helped loading the model, but no textures appear at all.
> Should it load the textures automatically due to the first line in the obj
> file being mtllib Data.mtl and the use of usemtl material_0 before the
> faces or do i need to take extra care when loading a textured model?
>
> For loading, im using only:
>
> osgDB::Options* opt = new
> osgDB::Options;opt->setOptionString("noRotation");osg::ref_ptr<osg::Node>
> node = osgDB::readNodeFile(pathToObjFile, opt);
>
>
> Best,
> Tom
>
>
> Am Dienstag, 14. Januar 2020 17:25:27 UTC+1 schrieb Robert Osfield:
>>
>> On Tue, 14 Jan 2020 at 15:26, 'Tom Pollok' via OpenSceneGraph Users <
>> osg-...@googlegroups.com> wrote:
>>
>>> Thank you for the workaround.
>>>
>>> So as far as i understand you only add the texture coordinate and
>>> normal, if there exists one with a index greater than 0 and less then the
>>> number of normals or texture coordinates.
>>> So that means that openscenegraph now will be able to display the
>>> textured mesh, even if the normals are missing, right?
>>>
>>
>> Yes, that's correct, you'll get a textured mesh with no normals assigned.
>>
>> Robert.
>>
>>
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