Hiding the MeshRenderer on an Instantiated object

Questions & Answers
1

I have a GameObject prefab of a weapon, which is instantiated to the player when picked up.
I get the Object reference not set to an instance of an object error on my code. Please help me?

var P90 : GameObject = Instantiate(WeaponPrefab,Vector3(0,0,0),player.transform.rotation); // instantiated object.
var P90mesh : Component = P90.GetComponent(MeshRenderer); //Get the Component for the MeshRenderer.
P90mesh.active = false; //Hide the mesh of the weapon so the player does not see the transition to the parents.
P90.transform.parent = player.transform; //Set the parent to the player's arms.
player.BroadcastMessage("IndexUp"); //Switch the weapon so two arent on top of each other.
P90mesh.active = true; //enable it again.

I get the error when setting the P90mesh.active to either true or false.
Could anyone help me?

2

The problem is you are setting P90mesh to the wrong type, it should be type MeshRenderer, not Component… Also, we use “enabled” for a component (“active” for a GameObject):

var P90 : GameObject = Instantiate(WeaponPrefab,Vector3(0,0,0),player.transform.rotation); // instantiated object.
var P90mesh : MeshRenderer = P90.GetComponent(MeshRenderer); //Get the Component for the MeshRenderer.
P90mesh.enabled = false; //Hide the mesh of the weapon so the player does not see the transition to the parents.
P90.transform.parent = player.transform; //Set the parent to the player's arms.
player.BroadcastMessage("IndexUp"); //Switch the weapon so two arent on top of each other.
P90mesh.enabled = true; //enable it again.

this fixes your code, but this is all pointless anyways, as you are turning the mesh renderer off and back on again within a SINGLE FRAME, without even really doing much else in between… Also, I don’t think you want to Instantiate it at Vector3(0,0,0)… That’s the world origin. You should instead use the position of the arm…

You could reduce this all to just this:

    var P90 : GameObject = Instantiate(WeaponPrefab,player.transform.position,player.transform.rotation); // instantiated object.       
    P90.transform.parent = player.transform; //Set the parent to the player's arms.
    player.BroadcastMessage("IndexUp"); //Switch the weapon so two arent on top of each other.

there would be no noticeable difference in the Mesh Renderer