I'm sorry it didn't work out. Maybe some of this will help you:
Video tutorial export md3 (Blender 2.76)
https://www.youtube.com/watch?v=GMvXajBNd0M
Video tutorial export md3 (Blender 2.6 x)
https://www.youtube.com/watch?v=SRtn9KO0omY
Export md3 and obj (the second method, but it doesn't always work):
We also save untitled.tga texture to the - models\mapobjects folder\
In blender, instead of adding "Custom Properties", we rename the material.
Try naming the material - models/mapobjects/untitled (i.e. the texture path).
Also self and before exporting obj.
Make sure that the netradiant still doesn't show the white texture.
If this didn't work try exporting the ase
Export ase
There is a detailed good video tutorial on exporting ase (for Blender version 2.78):
link -
https://www.youtube.com/watch?v=GwMzPNLSJQw
addon (io_export_aseRS1.py) -
https://drive.google.com/file/d/0B0GJCNB...NEbFE/view
If you have to work in older versions because of an old computer, here is an ASE export (for Blender 2.63 a):
1 Install the addon (in the folder Blender\2.63\scripts\addons\)
2 We work the same way as with versions 2.78
3 Perhaps for the correct export you will also have to name the material - models/mapobjects/untitled (I think this is probably a bug)
4 ASCII Scene Export(.ase)
links:
blender 2.63a -
https://download.blender.org/release/Blender2.63/
addon (ASE251.zip) -
https://code.google.com/archive/p/ase-ex.../downloads
You can also try exporting in older versions of blender
Here is a link to the old Addons -
https://www.katsbits.com/tools/
Instructions and possible errors are written on the same site
There is also a good tool - Noesis
Link to noesis -
https://richwhitehouse.com/index.php?con...ojects.php
Thanks to it you can for example convert md3 and bsp to another format and import it into Blender
Experiment and choose the method that is convenient for you.