3Ds Max 6: How do I texture a coin?

[cogliostro]

I've got this prblem with texturing a coin..
I've scanned in both sides of a real coin, and placed it on a transparent background, in photoshop (and I saved it as a .jpeg, I think. Does the file format matter?).
But when I place the material in 3Ds MAX, I get a square material, not a round one. That is, I get white corners that aren't supposed to be there.


Does anyone know how to fix this?

[andoy]

alpha mapping, search in the help files in max for more info about how it works.
It's very straight forward though.
or do a search of these forums for threads about alpha, you will find alot of them.

[greedo]

jpeg doesnt support an alpha channel use tga,psd,tiff etc

[Mr. Bluesummers-3DT]

Quick Reply
I actually usually use JPG for my low-grade alpha maps. In 3d studio max, it's not the material that determines the nature of the map, it's the placement. I could put any format picture in the alpha channel (even an RGB image!) and Max knows what to do with it. If you need high levels of greyscale definition, I recommend a 16-bit TIF for 65k shades of grey. =D