Unity Root Motion - in 6 easy Steps | Unity 2018.1 and Blender 2.79 | Tutorial 

Nice to hear!

Thank you very much :)

:D Thanks!!!

Good question :) Before I try to answer, I wanna say, that - at least for me - it is one of the hardest thing in Game Dev to bring the animations, controls, effects, dynamics, speeds and interactions in harmony. So I believe that there's not an easy answer. For me Root Motition is just a tool. There are other tools which may fit better in a specific situation. Often it's a combination of the use of different tools and methods. In theory Root Motion is nothing else than reading the translation and rotation information from the animation and map the data to the Transform-Component in Unity. So in theory it should be possible to make an instant change in speed with no acceleration if your animation is designed for that. But I think, the actual idea behind Root Motion was to bring the ingame motion in sync with the animation. For example that the feet of your character don't grind on the ground but move perfectly with the forward motion of the character. So if your goal is something else than to sync than you may want to need another technique. In our game for example we use root motion only for xz-translation. We don't have extra animations for rotation, so we calculate the rotation angle via script. Also the jump animations don't have to be perfectly synced and it's more important for us that it responds to the user input accurately - so there's no need for Root Motion on the Y-axis for some animations. But in the case of fight-animations we actually DO you Root Motion for the Y-axis. So it really depends :) I hope this gave you some ideas for how you could reach your goal. Unity provides a big toolset for any specific situation. It's not easy to choose... but in most cases a combination is the best. So don't focus too much on one single possibility and experiment a lot. Have fun with your game and good luck :D And thanks for the Abo!

Yes, we used the predefined Meta-Rigs from the Rigify-Plugin, but added more bones and created the controls on our own. I'm not sure anymore, but I believe that we added the root bone by hand. I hope I understood your questions correctly?

@@25games I think it is clever to put another root, when I use "rigify addon" does exist a root bone as default which is that big and full 4 side arroy shapes bone in the floor.... and hips to define the area is good option...

Hmm... you don't need to specify the Root Node in the "Rig" AND in the Animation Tab. I would recommend you to globally set the Root Node "rig/root/DEF-spine" in the Rig-Tab and leave the Root Motion Node in the Animation-Tab "None".

Thank you for response ) I think, I've found problem... It's in exported from Blender Rigify skeleton hierarchy. Spine bones (DEF-spine.[...]) goes separately from the bones, that control arm and legs. That cause problems. There's no animated bone in hierarchy, that is the parent to both bone branches. The "root" bone moves whole character and could be animated in a very rare situation.

You're welcome :) I'm glad you found a solution! Root Motion is a really delicate topic and there are so many things that can go wrong. I only covered the problems we encountered during the creation of our rigs and exports/imports. So what exactly was your problem? Was it because of the separation of your bone hierarchies? And how did you solve it? By key-framing the "root"-bone?

Hierarchy separation begins after the "root" bone. "DEF-spine" branch goes one way, "torso" branch - to another. And that is the main problem... If you want to use Humanoid rig inside Unity - you have to mix "DEF-spine" branch bones inside "torso" branch so the whole skeleton hierarchy match the Humanoid one. Some bones goes to the "torso" bone, some to others. But Generic rig is less strict, so you have to parent whole "DEF-spine" branch to "torso" bone. Hope everything I wrote is correct )

Ah, I see. Makes sense ^^ I don't know why, but I've always felt more comfortable with generic rigs since I have the feeling that I have more control over it (that's maybe subjective not objective). Thanks for your explanation and great that it's working now :)

Still not solved the problem? If you send your model to support@25games.net I can have a look if you want :)

@@25games I solved the problem... baking the roots in place for rotation... and in some action I need to repeat the process... I solved, but I am thinking if it is the best way? however I am using an addon call auto-rig pro wich is an amazing powerfull tool for riggers ...and also includes export for unity and unreal, but for unity .

Maybe you haven't set the 'correct' "Animation Type"? The Root Node drop down is only available for "Generic" animation types. Maybe you've selected the "Legacy" or "Humanoid"?

Yes that was exactly my problem! But now I have a problem where my character seems to move too rapidly and not straight..

I fixed by not changing the scale of the model in unity. Do that in blender then re import

@@BrandonCourt i see... scaling can really be a problem when you export from Blender. The most important thing is to have scaling of 1 in the scene. You can play around with the import scaling as well (model tab). With a wrong scaling joint and cloth physics are doing strang things as well :D

You're welcome :)

To be more precise, when i play my turn left animation in Unity's animation preview window, the blue arrow on the circle (down the model) which represents root rotation of the model rotates appropriately but the red arrow (which represents pose rotation, as in which direction the model is facing) is not rotating at all. Could this be the problem???

Hey :) I understand your problem but it's really hard to troubleshoot it without having the actual model and animation. Pack the model with the animation as an FBX into a zip and send it to support@25games.net I can look at it if you want :)

yes.. thank you so much... i have sent you... thanks again

Hey! just wanted to add up, the fbx file i sent you actually got replaced and i sent you the wrong one, i am re-sending the correct one. I apologize for my mistake.

@@yashkaushik6116 sorry, I didn't find the time today - I'll look at it tomorrow asap. Hope you still need my help :)

The eyes and mouth are texture planes and I created a sprite sheet for facial animation.

@@25games texture planes? So you just made a plane but a texture on it and place it carefully on the face? How do you make sure it's on the face and not slightly off of it

Yes. I duplicate the faces where the eyes should be placed and moved them slightly forward. We don't have any facial deformation for the face, so we can be sure that there will not be intersecting faces.

Good question, I really don't know, but I think an easy workaround would be to simply animate a "clone" of the staff as a separate object and temporarily deactivate the static one

Hello! Thank you for your comment. It stucks? We haven't figured out this problem before. Which browser did you use and was you able to continue the video when you reload the page?

I figured out a way, i downloaded the video and now its fine. By the way thank you for such an amazing video, it helped a lot.

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