Obj loader incorrectly loading specular maps #45315

New Issue

ProPuke · 2015-07-05T05:06:08+02:00

ProPuke commented

2015-07-05 05:06:08 +02:00

System Information
Elementary OS Luna, Nvidia GTX 560Ti

Blender Version
Broken: 2.75

Short description of error
There is an inconsistency with how specular maps (map_Ks) are loaded from the obj .mtl file.
There are loaded as specular intensity (although the texture can be rgb), but saved from specular colour.
Thus loading and then resaving an obj file loses this information. They should presumably be loaded as specular colour also, as they can contain colour information.
In io_scene_obj/import_obj.py The line reading mtex.use_map_specular = True needs to be changed to mtex.use_map_color_spec = True

Exact steps for others to reproduce the error
Load an obj model with a specular map.
Re-save it.
The specular map is now missing from the obj .mtl file

**System Information** Elementary OS Luna, Nvidia GTX 560Ti **Blender Version** Broken: 2.75 **Short description of error** There is an inconsistency with how specular maps (map_Ks) are loaded from the obj .mtl file. There are loaded as specular intensity (although the texture can be rgb), but saved from specular colour. Thus loading and then resaving an obj file loses this information. They should presumably be loaded as specular colour also, as they can contain colour information. In **io_scene_obj/import_obj.py** The line reading `mtex.use_map_specular = True` needs to be changed to `mtex.use_map_color_spec = True` **Exact steps for others to reproduce the error** Load an obj model with a specular map. Re-save it. The specular map is now missing from the obj .mtl file

ProPuke commented

2015-07-05 05:06:08 +02:00

Changed status to: 'Open'