Hello, I just reached the tutorial on blend trees. I’ve been working in Unity for just about a year now and I’ve never heard of them before and they seem awesome!
My question: Are blend trees used only in special circumstances or are they used quite often? Can I use blend tress in 2D projects or do they only work in 3D?
Thanks!
Blend trees work by blending anmation parameters from two sources… while they might technically “work” in a 2d game, they’re not going to do things like morph sprites.
Within 3d games, I generally only use them when dealing with movement, though there are some tricks that a Blend Tree might come in handy… you might have 3 different attack animations, and rather than having three “attack” states, you could SetFloat a parameter to a whole value to select between the three animations.
Just want to add a little more to Brian’s response.
Blend Trees can be used for all sorts of things, I highly recommend you keep them at the top of your head because they are really handy. Imagine this: You have a platform that you want to rotate, but you want it to stop at a certain point, the code for that might be a little convoluted, but if you use a blend tree you can have full control over that without having to write so much code. What you can use it for truly depends on your imagination.
In a 2D environment, even tho the sprites won’t get morphed, you can use it to create really professional-looking animations, a falling animation with several states that are controlled via a Blend Tree can look amazing, also, for top-down view games, similar to A Link to the Past, can be used to better control the character walking animation.
I ignored Blend Trees for quite a while, but now it has become one of my most used tools due to its versatility.
Awesome, thanks very much for the reply! I’ll keep those tips in mind 
Ahh okay gotcha! Thank you very much!
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