Mecanim Issues: Root motion not being applied, and weapon is out of place

Question

So I never got to really mess with animations till now (My first time doing this stuff)

I wanted some basic stuff like idle, running, walking and aiming. I couldn't really find a good aim animation anywhere (I'm no animator) - The only thing I liked was the character from the Locomotion system.

From there, the animations were all imported as separate .fbx files - they were all Legacy so I turned them into Humanoid. I dragged the animations I wanted and so here is my state machine:

alt text

The animations are transitioning correctly, here's what's controlling them:

 using UnityEngine;
 
 public class MecanimTestController : MonoBehaviour
 {
     public float rotationSpeed = 1f;
 
     void Update()
     {
         var animator = GetComponent<Animator>();
         if (animator)
         {
             animator.SetFloat("Speed", Input.GetAxis("Vertical"));
             animator.SetBool("IsAiming", Input.GetMouseButton(1));
             animator.SetBool("IsRunning", Input.GetKey(KeyCode.LeftShift));
         }
         transform.Rotate(0, Input.GetAxis("Horizontal") * Time.deltaTime * rotationSpeed * 100f, 0);
     }
 }

The problem I'm having though is that the character doesn't move even though "Apply root motion" is ticked. He doesn't even more when I preview the animation! (at the bottom right corner of the animation) - Also, the guns are always out of place. Here's a small video highlighting the problems, showing my avatar settings, import settings, etc. - Please give it a view.

Question is: Why isn't root motion being applied? (why isn't the character moving) and why is the gun being offset-ted?

Thanks for any help!

Answer 1

Best Answer

Answer by Josh1231 · Aug 06, 2014 at 04:12 PM

The guns can be kept in place by making it the child of the hand and ammo quaver, and the character can be moved with script by doing

 if (animator.GetCurrentAnimatorStateInfo(0).IsName("Base.RunForward"))

Base. being the first layer, and RunForward being the state name, and if it's true you can do what the root motion was supposed to do.

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vexe · Aug 06, 2014 at 04:22 PM 0

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Thanks that's actually correct! - I thought it was parented because it worked when it was a legacy anim. But it wasn't, the guns were children of the "Reference" gameObject.

So that's the second part of the problem solved, still the root motion...

Answer 2

Answer by meat5000 · Aug 06, 2014 at 04:15 PM

http://docs.unity3d.com/Manual/ScriptingRootMotion.html

Root Motion only works 'as-is' when the Animation moves from the spot in the Animation tool/ Modeller.

Otherwise, you may very well need this function

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vexe · Aug 06, 2014 at 04:29 PM 0

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Hi meat thanks for the answer. I understand that if I don't want root motion I should script the movement. But what I don't get is why isn't root motion working. "Root $$anonymous$$otion only works 'as-is'" - does that mean that if animation is exported without root motion, there's no root motion...?

meat5000 ♦ · Aug 06, 2014 at 04:47 PM 0

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An In-Place animation contains no Root $$anonymous$$otion as the 'Root' doesn't actually move from the spot in the animation itself. These are usually marked as Legacy.

To make this Root $$anonymous$$otion you can either use curves to provide the velocity or script it in to the OnAnimator$$anonymous$$ove() function.

If the animation actually IS supposed to be Root $$anonymous$$otion, it could be that X/Z is baked in the Animation Import.

$$anonymous$$y first link is a page on Adding Root $$anonymous$$otion to In-Place animation. It's all in there :)

meat5000 ♦ · Aug 06, 2014 at 04:59 PM 1

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Root $$anonymous$$otion Animation

alt text

rootmotion.jpg (159.7 kB)

Mecanim Issues: Root motion not being applied, and weapon is out of place

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