Hi,
I’ll drop him a line again see if I can get hold of the source for it. The only thing is if I do get the coders to edit it, it will only be for 4/5 rather than 6, so it won’t help those users unless they can find someone to recompile it for 6.
Not sure why you were having problems with the UVs - maybe there’s some overlaps there?
I was using 0,0 to 1,1 1.1,0 to 2,1 etc. and that worked OK.
Cheers
I’m sorry but the trick doesn’t seem to work for me. I’m sure I’m doing it correctly because when a texture is applied to the imported mesh, the texture was wrapped correctly due to different UV settings in different areas. But when I click the UV Groups Button, the whole mesh would be assigned to a single group. Wonderring why.
Can you post an image showing the UV’s. The Unwrap UVW modifier should work good for this. Or you could post the Max and/or OBJ file for us to look at.
Hey, it’s working now! I know what caused the problem. Thank you all. 
The first thing, I thought myself clever and assumed when the UV mapping is not continuous, it would be divided into different groups. But it’s wrong, Only when the polygons occupy different UV ranges would them be regarded as separate groups.
The second thing, make sure that one potential polygon group doesn’t extend into other UV ranges. Avoid even touching the borderline. Otherwise, there might be problems.
Well, here is the way I find most reliable and predictable. After the model is shaped, add an Unwrap UVW Modifier atop, and hit the edit button. Then first scale the whole mesh to make sure that they only occpy the range from 0,0 to 1,1 (You may use Pack UVs to help you.) And then, use all the techniques to select the bunch of polygons which are going to be in the same group and drag them into different UV areas as shown below. (You may need to use Detach Edge Verts when necesary) OK, now export. Bingo, you get it!
Can you post the imagen…? i can see it–
Thanks!