Max_Steven Posted June 4, 2022 Share Posted June 4, 2022 (edited) Hello, I have a pre-fractured tree and before porting the parts into dop I pack them all. Even though I check on transfer all attributes included UV My UV after getting packed got meshed up I can use an attribute transfer to bring it back but i dont understand the reason why it happened Is there something I overlooked or is it just the way it is? Thank for reading this ASk_PackedObj_UV.hipnc Edited June 7, 2022 by Max_Steven Quote Link to comment Share on other sites More sharing options...
Alain2131 Posted June 4, 2022 Share Posted June 4, 2022 Hi, the issue is that you are transferring UV to your packed geo. That "promotes" the UV to a single value for the entire packed fragment. Then, when you unpack it, it transfers that single value to the entire packed fragment, messing up your UV. You do not need to "Transfer Attributes" when you pack your geometry. That transfers attributes on the "shell", but the content still has the original data, regardless. If you isolate a single piece, for debug, and look at the vertices in the spreadsheet, you can see that the first UV value is transferred on your packed geo. Then, when unpacking, that value is copied on every vertices for that packed fragment. Just remove the * in the "Transfer Attributes", and it'll work. 2 Quote Link to comment Share on other sites More sharing options...
Max_Steven Posted June 7, 2022 Author Share Posted June 7, 2022 Wow Thank you so so so much Now I finally understand it. Have a nice day sir Quote Link to comment Share on other sites More sharing options...
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