Trivial question, but how do you animate block textures? I've seen a few other threads on this, but the answers aren't definitive or aren't on the thread at all. I've figured out about the TextureFX, but for one thing, where do you even tie a specific instance with your block? Peeking around in the vanilla code that uses this seems like you don't... Please help!

Animated block/item textures are fairly simple. They require no code at all. To animate a texture, you have to make a image that has all the frames for the animation in it.

 

Example image:

 

then, in the textures folder, you have a text file under the same name as the texture you want animated. So say my image was called awesomeSword.png, i would call the text file awesomeSword.txt. Now if you left it blank, the frames would be played through one after the other, with no breaks.

 

Look at this quote to see more about changing the speed of the animation:

http://www.minecraftforum.net/topic/1722368-15-icons-and-block-textures/page__st__140#entry21778101

Hmm... I just tried this but it still treats it as a whole texture sheet and doesn't animate it. I've got the .txt file (it's named correctly); is this all I need or do I need to do something else as well to tell it it's an animated vertical sheet?

Hmm, just realized that the issue might be that I'm using 1.4.7... I'm currently updating though!