Object Interactivity With Camera

[bser]

Hello. What is the best way to create a way to interact with object while looking at a object with the camera's z axis. For example, we want to change a chair mesh to another mesh, when we look at the chair the user should be able to see the new mesh that we decide to replace it with. 

[bser]

Without pressing buttons or clicking on the screen. 

[GameMonetize]

In this case the best option could be to register some user code with scene.registerBeforeRender.

With this code, you could use scene.pick() using center of the screen coordinates and get the picked object (if any)

if the picked object is your chair then do what you want with it