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Discuss and Display your Mesh Builds and projects, post tutorials and links to examples. Blender - Maya - 3D Studio - ZBrush - Sculptris and many other tools and scripts related to modeling!

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 Post subject: Blender 2.70 weight transfer function a huge time-saver
PostPosted: Thu May 15, 2014 6:40 am 
Furious Typer

Joined: Mon Sep 27, 2010 7:12 am
Posts: 53
For those who make rigged mesh clothing in Blender and haven't yet updated to 2.70, do so! The weight transfer function is a huge time-saver. For Avastar owners, do it is both faster and better than the weight transfer calculations that Avastar does when parenting the object to the armature.

To use it you need a "source" object that is already weighted to your satisfaction (can be your avatar or a piece of similar-shaped clothing you've already made) and a "target" object that you want to weight. Both objects should be in object mode. Then:

1. select the source object
2. shift + select the target object
3. switch to weight paint mode
4. in the toolshelf (T) tools tab click the "Transfer Weights" button
5. Select the options you want (for a global transfer it would be group=all, method=nearest face, replace=all)

The closer your source is in shape to your target, the better your results will be.

I spent a couple days making a set of "weight sources" for myself that I store in a single .blend file and then temporarily append whichever one I need to my working file. I made 3 versions of a full-length (to the ankles, wrists and mid-neck) dress -- one very close-fitting, one that drops more or less straight from the hips, and one that flares out like a more traditional ballgown -- as well as several different tops that have different armpit draping and bust draping.

Prior to this, properly weighting something might take anywhere from 2 to 7 or 8 hours. Now when I make a new item I can get very close to final weighting in a matter of seconds using weight transfer, then just make a few tweaks where needed...rarely more than an hour of work.

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