Understanding Multi/Sub-Object Material
In this tutorial I'm going to show u how to use Multi/Sub-Object Material, I'm in no way a professional artist, so there r maybe much better uses to this 3ds Max feature than the one I'm going to show, but! my intention is only to show you the basic abilities of this material, the rest is up to you. :P Lets start
Multi/Sub-Object Material allows you to apply many different materials to one object at the same time, based on what is called Material ID that you assign to certain polygons of your object, that's what we're going to do now. The object I've used to make this tutorial is a sword that I've box modeled and meshsmothed, you can use any other object you want or download my sword here.
Okies, les rock. Right click your object, choose Convert To > Convert To Editable Mesh.
Go to the Modify panel, click the plus ('+') sign near the words Editable Mesh, and pick Polygon
from the list, that will take to the polygon editing mode.
Next, on the Selection rollout uncheck Ignore Backfacing if it's checked. (If it's checked, it means
that you can not select faces which u can see - faces on the back of you object - backfaces)
Okies, next, we've gotta deside how many materials and for which parts we will use. Ive devided me
sword to three groups that r going to need each personal material, the blade, the hilt and the so
called accessories, as shown in the next pic:
Now, how da hell do we make Max understand what we mean? Follow me.
Left click and drag a selection window around your object, Select ALL polygons of your object
a selected polygon will turn red (make sure you have unchecked Ignore Backfacing else, the polygons
on the back of your object won't be selected). Scroll down to Surface Properties rollout, and put in
"1" value in the ID line, press Enter.
This gives all the selected polygons ID 1 (sort of a name if you wish). To test your assigning click
somewhere in the viewport to unselect everything, than click the Select By ID button near the ID
line enter 1 in the dialog that appears and click OK. If everything is selected again than
you're fine.
Next, select only the blade
Set it's ID to "2", press Enter. Do the testing again, (make sure that Clear Selection is checked in
the dialog that appears after you click the Select by ID button). Ok, now we have two "names" 2 for
the blade, and 1 for everything else. Next we're going to assign number 3 to the hilt. Click
somewhere to unselect everything, next, select only the hilt, like this:
And what now? Right! Set the ID value to 3, press Enter, and test all 3 selections. 1 is the
accessories, 2 should be the blade and 3 will be the hilt! we're done here, now we've gotta make
us some Multi material! Mwauahahaha! Sorry, please, to the next page.