NumTVerts is the number of texture vertices (UV coordinates). Note that the file can have duplicate TVerts (particularly after a uv-mapping session). There's a function in STOMP to 'Compact Texture Indices' which will get rid of any duplicates, but I'm not sure why that changed if you didn't use that feature... EXCEPT that, if there were 'unused' TVerts, my program might throw them out on exporting (it builds tables of everything it needs and then refers to those tables when exporting, so if something in the file was not actually referenced, it would likely be thrown out).

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