How to change textures for different categories?

[Jibbles]

Say if I wanted to add an item that supports both stony and metallic categories. I wanted my item in stone to use not only a different color, but a different image than if it was created with steel.  My main issue is that I want this to be selected under only one icon in the menu.  How can I go about doing this?

[Ekarus]

I'm assuming you mean something along the lines of a box with a smooth texture to it if made of steel and a cobblestone-esque texture if made of stone. In which case if you are I don't think you can do two textures with one thingdef. Even if you can you might be better off with just having separate thingdefs.

[Jibbles]

That's unfortunate if I can't.  I feel like it kind of needs to be done in this situation if I'm going to implement two types of textures.

[Ekarus]

If you don't mind my asking what is it your texting?

Because if it's a weapon, or something that'll just sit in a warehouse that extra level of detail will just translate into extra RAM usage in a 32 bit game. While it's nice, you are ultimately talking about something that won't be easily seen (in that case)

[Jibbles]

Walls. Walls made in metallic category uses different textures than stone.  I wanted to make textures that blend with both types as well. I didn't want to clutter the menu and make it confusing to players.