UV copy and cluster indecies mismatch with samples

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UV copy and cluster indecies mismatch with samples

UV copy and cluster indecies mismatch with samples

2004-03-11 - By Graham D Clark

Back
I have two meshes with same position of mesh components but different
poly order, different point order, and different sample orders, and I
need to copy UV maps from one to the other.

So far I have a script that matches all polys, then points, and samples.
(Various versions with slow loops and sorting array by postion in global
space etc. all same result)
Then I want to set the sample UV positions of ObjA to ObjB but I am not
understanding access to the cluster indecies.

The clusters and arrays are set up like in the docs:

aUVWA = clusterAprop.elements.array
aClusterIndicesA = clusterAprop.owners(0).elements.array

And then I run some loops to compare polys postions and samples and
according to my tests it is working ocrrectly up to this point, the
corresponding/nearest sample from object A is found on ObjectB.

But once I have the list of samples and corresponding samples on other
object I am having trouble understanding how to set the UVS postions of
object A to the other object B

I get all the the samples of object A as nsampleA and their
corresponding/nearest sampel in object B as nsampleB

The following does not work:

aUVWA(0,aClusterIndicesA(clusterAprop.owners(0).FindIndex(nSampleA.index
))) =
aUVWB(0,aClusterIndicesB(clusterBprop.owners(0).FindIndex(nSampleB.index
)))

aUVWA(1,aClusterIndicesA(clusterAprop.owners(0).FindIndex(nSampleA.index
))) =
aUVWB(1,aClusterIndicesB(clusterBprop.owners(0).FindIndex(nSampleB.index
)))

The script does work on two meshes both created in XSI with one of the
objects rotated so that the next polys line up, but the script will not
work transfering UVs from the disordered meshes from max and wherever
else they have been getting reordered in the pipeline.

PS the UV copy script on XSI net doesn't work for us either, but almost,
not that many stray UVs.

Thank you for any advise, Graham
-- ---- ---- ---- ---- ---- --
http://www.grahamdclark.com

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I have two meshes with same position of mesh
components but different poly order, different point order, and different
sample orders,  and I need to copy UV maps from one to the other.

So far I have a script that matches all polys,
then points, and samples. (Various versions with slow loops and sorting array
by postion in global space etc. all same result) 

Then I want to set the sample UV positions of ObjA
to ObjB but I am not understanding access to the cluster indecies.


The clusters and arrays are set up like in the
docs:


aUVWA = clusterAprop.elements.array

 aClusterIndicesA = clusterAprop.owners(0)
.elements.array


And then I run some loops to compare polys
postions and samples and according to my tests it is working ocrrectly up to
this point, the corresponding/nearest sample from object A is found on ObjectB.


But once I have the list of samples and
corresponding samples on other object I am having trouble understanding how to
set the UVS postions of object A to the other object B 

I get all the the samples of object A as nsampleA
and their corresponding/nearest sampel in object B as nsampleB


The following does not work:


aUVWA(0,aClusterIndicesA(clusterAprop.owners(0)
.FindIndex(nSampleA.index))) = aUVWB(0,aClusterIndicesB(clusterBprop.owners(0)
.FindIndex(nSampleB.index)))

aUVWA(1,aClusterIndicesA(clusterAprop.owners(0)
.FindIndex(nSampleA.index))) = aUVWB(1,aClusterIndicesB(clusterBprop.owners(0)
.FindIndex(nSampleB.index))) 

The script does work on two meshes both created in
XSI with one of the objects rotated so that the next polys line up, but the
script will not work transfering UVs from the disordered meshes from max and
wherever else they have been getting reordered in the pipeline.

PS the UV copy script on XSI net doesn't work for
us either, but almost, not that many stray UVs.


Thank you for any advise, Graham

  -- --
-- ---- ---- ---- ---- --

 <A HREF="http://www.grahamdclark.com">http://www.grahamdclark.com</A>

 

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