Unity click an object behind other using Raycast

Question

There are many questions like this, but I didn't find a valid solution to my problem.

I would like to click an object behind a collider, this is my code:

    void Update () {
    RaycastHit hit;
    Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

    if (Physics.Raycast(ray, out hit))
    {
        Debug.Log(hit.transform.name);
    }
}

I put this code inside the script attached to the first object but the debug log will never be called. Any ideas?

Answer 1

If I understand your question right, you want to click on the yellow sphere (see image) and want the name of the white cube?

There are two possible ways to do that:

1. Ignore Raycast Layer

You could give the yellow sphere the unity standard layer "Ignore Raycast":

Then your code should work (I added the on left mouse click)

    void Update()
{
    if (Input.GetMouseButtonDown(0)) // Click on left mouse button
    {
        RaycastHit hit;
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        if (Physics.Raycast(ray, out hit))
        {
            Debug.Log(hit.transform.name);
        }
    }
}

2. Use Layer Mask

See: Using Layers and Bitmask with Raycast in Unity

If that's not what you're looking for please give further information and a screen shot of your problem.