Why isnt renderer.isVisible not working?

Question

the script i have is:

 void Update ()
 {
     bool isVisible = renderer.isVisible;
 
     if (isVisible)
     {
         renderer.enabled = true;
     }else{
         renderer.enabled = false
     }
 }

my question is, How come this script isnt working?

Answer 1

Answer by robertbu · Jun 22, 2014 at 02:43 AM

Thoughts:

Unity already does this kind of culling, so all you are doing is adding more overhead.
Any object with the renderer turned off is not considered visible even when it is in the view area of any camera.
Note isVisible is true when seen from any camera. Back in 3.x days that included the scene camera when in the Editor. That may still be true.

2 Show 11 · Share

Theacesofspades · Jun 22, 2014 at 02:51 AM 0

Share

So do you have any ideas on how I can accomplish turning on and off the renderers if they are in view?

Eric5h5 · Jun 22, 2014 at 03:00 AM 0

Share

@theacesofspades: Don't bother. There's no reason to do this. Your script can't possibly work anyway because you turned the renderer off when not visible, so it would never turn back on again. Even if it could, polling .isVisible every frame isn't very efficient when you could use OnBecameVisible and OnBecameInvisible.

Theacesofspades · Jun 22, 2014 at 02:38 PM 0

Share

Ok but I used on became invisible and on became visible but how can I hide the objects that are not seen by camera? Because the game is too laggy since I have a ton of objects in the scene.

Eric5h5 · Jun 22, 2014 at 03:54 PM 1

Share

Unity already hides objects that are not seen. You don't have to do anything. If the game is laggy because you have too many objects, then reduce the number of objects. That's a completely separate issue.

robertbu · Jun 22, 2014 at 04:57 PM 1

Share

Minecraft-line games use voxels. That is they construct many cubes using a single mesh. Using separate game object for each cube will kill your frame rate. Lots of posts on UA on voxels.

Show more comments

Why isnt renderer.isVisible not working?

1 Reply

Unity Answers is in Read-Only mode

Follow this Question

Related Questions