Drawing Objects Using Window Coords

[Anthonylinx]

Could someone explain to me how I would go about drawing a sprite at a location in the window. For example, if I wanted to draw it at the bottom left corner (or 0,0) how would I be able to this?

To be a bit more specific here is what I have so far:

Vector3 screenPoint = new Vector3(100,0,0);
Vector3 worldPos = Camera.main.ScreenToWorldPoint( screenPoint );
Quaternion ZeroRotation = new Quaternion(0,0,0,0);

GameObject tempTile = (GameObject)Instantiate(Resources.Load("Tile"),worldPos,ZeroRotation);

However, rather than drawing the tile at 100,0,0 in my 1920x1080 screen it draws it closer to 350,0,0.

[ThatsAMorais]

You’re looking for “Screen”, I think. In other words…

Vector3 screenPoint = new Vector3(Screen.width,Screen.height,0);
Quaternion ZeroRotation = new Quaternion(0,0,0,0);
 
GameObject tempTile = (GameObject)Instantiate(Resources.Load("Tile"),screenPoint,ZeroRotation);

This code will place the sprite at the bottom-left.

[robertbu]

Your problem is the ‘z’ parameter you set for your initial screenPoint. This value needs to be set to distance in front of the camera. A value of ‘0’ will place the object at the camera position regardless of the ‘x’ and ‘y’ values. So to set it 10 units in front of the camera:

Vector3 screenPoint = new Vector3(100,0,10);
Vector3 worldPos = Camera.main.ScreenToWorldPoint( screenPoint );

Note there is a shortcut for zero rotation called ‘Quaternion.identity’, so you don’t need to do your ‘zeroRotation’ code above just do:

GameObject tempTile = Instantiate(Resources.Load("Tile"), worldPos, Quaternion.identity) as GameObject;