[3DS] Enlever le matériau d'un objet ?

Removing Materials from Objects
 
Level: Intermediate
Category: Materials
Situation: Once a material has been assigned to an object you may find it difficult to remove it.
 
Suggestion/Tip:
If you need to render such an object in its original object (wireframe) color there are two ways to remove an object's material assignment. In MAX or VIZ, bring up the Material Map Browser, select New in the Browse From area, then drag the NONE material type and drop it on an object or a selection of objects.  
 
Another approach (MAX only) is to use the UVW Remove utility. You can find this utility under the More... button on the Utility Panel. Once this utility is loaded, select one or more objects, then press the Materials button in the Parameters rollout to remove the material assignments from the objects.