Checking ground not working as expected

Questions & Answers
1

Hi,
Im checking ground so i can add a force down when isnt on ground. The problem is that my GameObjects flickers when on ground.
I desactivate the “use gravity” in the rigidbody, but it stills flickering.
This is the code i have for that force down.

void FixedUpdate()
    {
        if (!isGround)
        {
            rb.AddForce(Vector3.up * -gravityForceMultiplier * 50);
        }
        else
        {
            rb.AddForce(Vector3.up * -normalGravity);
        }
    }

And this is the code for raycasting.

private void Update()
    {
        if (Physics.Raycast(this.transform.position, Vector3.down, disToGround, groundLayer))
        {
            isGround = true;
        }
        else
        {
            isGround = false;
        }     
    }

Thanks and sorry for my bad English.

2

I managed to solve the problem by adding a little offset to the raycast, so the code results in:

   private void Update()
    {
        if (Physics.Raycast(this.transform.position + new Vector3(0, 0.2f, 0), Vector3.down, disToGround, groundLayer))
        {
            isGround = true;
        }
        else
        {
            isGround = false;
        }        
    }