Character sinks into the ground!

[rainingrickParticipant]

I have a NavMesh (max Slope = 0, walkable height = 2, walkable radius = 0.55, step height =0.75etc)

I have a character.
My character has a behaviour tree such that it will follow a waypoint route
Oddly, my character sinks into the ground as it walks!

Any ideas?

[primeKeymaster]

Do you have a capsule collider and rigidbody set up on your character? Or a unity CharacterController?

[rainingrickParticipant]

I have the following object structure.

Character (has Animator Component and IKProxy
-> Model (has Mesh renderer)
-> AI (has AI Rig with behaviour tree etc)

So my character doesnt have a collider, rigid body or character controller.

Should it?

[rainingrickParticipant]

I’ve added a character controller, but my character still sinks as he walks around.

He sinks up to his waist, but never any further!

The waist corresponds to the center of the character.

[rainingrickParticipant]

My ground has a box collider.

When adding a capsule collider and rigid body to my character, its motion becomes erratic - it topples over.

[primeKeymaster]

Set constraints on the rigid body - freeze in X/Y/Z rotation and X/Z position

[rainingrickParticipant]

Continued to get odd movement!

I watched this video (https://www.youtube.com/watch?v=YuaBBCL5PSs#t=11) and there doesn’t seem to be any character controller or rigid body used here?

Could it be a problem with the nav mesh?

I’ve also noticed that the minute I add a rigid body and character controller my character starts to get stuck a LOT!

As a bit of background, I’m generating my NavMesh based on the code in this example: http://rivaltheory.com/wiki/rainelements/navmeshrig

The general setup is:

I have several obstacles.

My character has a behaviour tree which has a waypoint patrol variable which is set via

aiRig.AI.WorkingMemory.SetItem<string>(“patrolRoute”, patrolName);

The character set up is:

Is there anyway to get source code so that I can debug!

• This reply was modified 2 months, 2 weeks ago by  rainingrick.
• This reply was modified 2 months, 2 weeks ago by  rainingrick.

[rainingrickParticipant]

In fact, even when removing the obstacles, the character gets stuck!

Heres what the NavMesh looks like.

The characters are all placed within a green section

[rainingrickParticipant]

Adding a Capsule collider has helped and using a basic motor on the AI has helped.

So my character now has a rigid body and a capsule collider and a controller and uses the basic motor)

The character isnt getting stuck anymore….but the characters Z position jitters quite a lot.

I only have a flat plane (and will never need vertical motion)!!

Arghh!

• This reply was modified 2 months, 2 weeks ago by  rainingrick.

[primeKeymaster]

You really don’t want to use a Character Controller and a rigid body/capsule at the same time. You’ll want one or the other. If you stick with the CharacterController, make sure you switch to a CharacterControllerMotor. If you go with the rigid body/capsule then you should use the BasicMotor.

[Author]

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