So I have a lot of objects with similar animations, but I want each one to fade out at a different time. I already have a lot of materials, so I don't want to make the list that much longer. Is there any way to fade out a specific object without use of materials? Thanks!
I was able to accomplish this using render layers and compositing. Much simpler to use materials though, IMHO. I think the results are better too.
When you create your material, just add a transparency node and mix node. You don't need more materials, just add the shaders and key frame the transparency with the mix node. You can group them and reuse also to save time. That's for Cycles. If you use BI, just key frame the alpha in the output node of your material.