I am using the 4.5.0 version of the Easy AR Unity plug-in. I am working on a surface tracking type of AR and I want to do a kind of indicator that make users able to understand exactly where the 3D object will be placed. I follow that method is trying to send a ray cast from the center of the camera and trying to handle the position where the ray cast collides with the surface plane but when I also couldn't find how it is named surface collider. I would appreciate If you may help me with this point. Thank you for your help.