Arbitrary Attributes in Blender

I wish I could add new, arbitrary attributes to things in Blender, then associate an IPO curve with them. That's something I really miss from Maya.

That, and the ability to plug in crazy shit from one channel to another. Like using the color value from a texture to drive the position of an object — I wish I could do random stuff like that in Blender without having to spend hours scripting an ad-hoc solution myself.

Why would I ever want to do that?

If you have to ask, your imagination needs a jump-start.

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