How is a gui texture’s collider calculated? How do I set the size as its imposible to see guielements (in position) within the editor.
My colliders are set to scale 0,0,1 and only sometimes they are detected by touch presses and other times they arent.
?
hello,
if you are going to use a GUITexture to detect touches, its way easier, and more accurate to use a GUI.Button, and assign to the button the image that the GUITexture has.
it should look exactly the same 
would cost much more performance. Any OnGUI is better avoided.
If you want to speed stuff up, use SpriteUI
As for guitexture and collision: it will likely never be correct, as guitexture / guitext aren’t meant to be used like that. You would not use any physical approach to get them but use math and the guitexture / guitext rects to check if the touch position is contained through the Contains function of rects