3ds max how to correct proportions and scaling for UVs

Stu2Prof

Hi guys I am doing my UVs fo a box shape object and have noticed the proportions of my UVs are incorrect. I did a normal box mapping procedure to unwrap them along with some stitching. I want to know if there is a way I can return the UVs to the correct proportions automatically. Also I'd like to know if there is a function to ensure that all the different UV sections have the same scaling relative to each other. Thank you for any help you can offer.

Eric Chadwick

Pack UVs does this, make sure to enable Rescale Clusters. This will change the UV positions.

http://knowledge.autodesk.com/support/3ds-max/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/3DSMax/files/GUID-03349B74-1754-442E-981A-6CB0D13380C0-htm.html

Stu2Prof

Thanks Eric. I tried Pack UVs with Rescale Clusters active but hasn't removed the problem. I thought it might be a perspective issue with my viewport but here is a sample using the right viewport, which I believe is orthographic, and the problem is still evident.

Eric Chadwick

Deselect all faces, then pack.

Also, put a grid texture on your model. These grids are better than the default Checker:
http://wiki.polycount.com/wiki/Texture_Coordinates#UV_Map_Grids

If you use a grid with circles, it will be easier to see distortions, and pixel sizes.

Stu2Prof

Packing still doesnt seem to be working with faces unselected but I have resorted to manual adjustment now. Not much of a problem, just wanted to see if the automatic way would work. Thanks for linking to the grid textures

Eric Chadwick

That doesn't make sense. Can you send me your max file?

Obscura

Try reset xform. Maybe the scale transform is messed up. I got this a few times, and after reset Xform, it worked.

instg8r

Yep, reset your Xform like Obscura reccomends. I always do that before unwrapping, otherwise you will get those distortions in your UVs if you've scaled/manipulated them.

Stu2Prof

Thanks for your help guys!