Setuvs

[-hjd-uk-]

Hi, i've bee nworkin with the maya API for a few months now and I need some help with setting the UVs on a mesh, ive searched for threds in this forum but the ones I found didnt help.

Ok here goes:

I make a mesh and take a copy of the U and V coordinates

MFloatArray aryUs,aryVs;

mesh.getUVs(aryUs,aryVs, &currentUVSet );

i then play aroudn with the Uvs, translating rotating scaling etc.

now when it comes to re-setting the Uvs (no change in size of arrays), the UVs get
set - even in the UvTextureEditor but do not stay in place - as soon as i try to move a UV or switch to another uvSet and back - the UVs are back in their pre-modified positions, here's what I do:

MIntArray uvCounts;
MIntArray uvIds;
mesh.getAssignedUVs(uvCounts,uvIds,&currentUVSet);

mesh.clearUVs(&currentUVSet);

mesh.setUVs(aryUs,aryVs,&currentUVSet);

mesh.assignUVs(uvCounts,uvIds,&c	urrentUVSet);

I have also tried setting the UVs one by one and the same happens, the only way I can get the UVs to stay put is to go through a loop and run MEL script commands:

for( allUvs )
{
"polyEditUV -r false -u aryUs[i] -v aryVs[i]"
}

This would be ok but its very slow.

Any ideas?

Thanks, H.