Prevent rigidbody to lose speed when running up slopes (loop de loop)

Unity Engine
1

Hey guys.
So for the past few days Ive been trying to make my caracter to properly run up slopes ( walls and loop de loops)
I got him align to the ground but as soon as reach an angle (90) where the player would be perpandicular to the world’s x/z plane ) he would stop moving.
The movement pattern I set up is prett simple

Direction = (h,0,v);
Direction = Camera.main.transform.TransformDirection(Direction)


rb.velocity += new Vector3(Direction.x,0,Direction.z)*Acceleration*Time.DeltaTime;


// RayCast code to get ground normal ... and rotate
transform.rotation=Quaternion.LookRotation(Vector3.Cross(transform.right,alignhit.normal.normalized),alignhit.normal);

if(rb.velocity.magnitude>0.1f)
mesh.transform.localRotation = Quaternion.LookRotation(rb.velocity,transform.up);

the mass of the rigidbody is set to 4 and the drag to 3
I tried nulling the drag and friction and this still happens…

I also noticed if I make the velocity " = "to the mesh’s transform.forward and multipliy it by a Speed float that increases/decreases depending on the input, the player would run almost fine on slopes.
But the thing is, adding to the velocity (+=) and then using it in LookRotation would save me alot of work cuz it makes the rotation smooth without using slerp and having to work around the rotation speed.

I hope someone here can lead me to the solution C:

2

Perhaps it’s as simple as gravity pulling you down…? Set gravity to 0 and see what happens I suppose :slight_smile:

3

No that’s not the problem.
And actually I realised that’s its something different.
Its not the speed that decreases.
Its actually the velocity being applied on the world x/z plane

Which means as soon as sonic is on a wall, the velocity will push him to the wall instead of moving him based on his forward.

Is there a way to rotate the velocity?

I tried using rb.velocity += mesh.transform.forwarddirection.magnitudeacceleration*Time
deltaTime;

Using that he can go up slopes (he speeds up alot though)
But for that I have to rotate him with the direction vector (aka lookrotation(direction) ) which is something in trying to avoid.

I’d like to still use rb.velocity += direction*acc and be able to apply the velocity on the forward axis of the player