Selective Camera Culling Mask

Hey everyone,
I am having a bit of trouble working out how to turn on/off specific layers for a dynamic changing camera (ActiveCamera) so that I can toggle certain elements of my enviroment. Eg. Turn on/off buildings (1 << 12), newly created objects (1 << 14), etc.

I am using a toggle GUI, with the actual function of checking existing in an Update.

I want to leave the cameras to continually look at certain layers (GUI, etc) but to just add or remove the object layers without culling everything.

I have had quite a few goes and read all the layers docs in all the references, but I cannot seem to specify a single layer to turn on and off without doing the whole thing. Any help would be really appreciated.

 

What are you doing exactly? My guess would be that you're simply setting the wrong bitmasks.

Here's a few code snippets that should work:

Code (csharp):

1.  
2. // Render everything *except* layer 14
3. camera.cullingMask = ~(1 << 14);
4.  
5. // Switch off layer 14, leave others as-is
6. camera.cullingMask = ~(1 << 14);
7.  
8. // Switch on layer 14, leave others as-is
9. camera.cullingMask |= (1 << 14);
10.  

(you might want to read up on how the bitwise operators work too)

 

That works great! All I needed to know was the correct syntax for picking out 1 singular layer. I am creating a architectual modelling program where you have a 3d map of a city, which you can view from street level, or a bird's eye perspective. You choose to place your proposed building to view it from various angles/see how it sits in the city, etc.
This is a snippet of what I finished with... thanks again.

Code (csharp):

1.  
2. if(ToggleBuildings){
3.         GUISwitchcamera.currentActiveCamera.cullingMask |= (LayerBuildings);
4. }
5. else {
6. GUISwitchcamera.currentActiveCamera.cullingMask = ~(LayerBuildings);
7. }
8.  
9. if(ToggleNewBuildings){
10.         GUISwitchcamera.currentActiveCamera.cullingMask |= (LayerNewBuildings);
11. }
12. else {
13. GUISwitchcamera.currentActiveCamera.cullingMask = ~(LayerNewBuildings);
14. }
15.  

 

Glad I could help!

 

Thanks guys, helpful thread

 

perfect code thanxxxx

 

Sorry for necro-ing this thread but a correction in case anyone tries to use this ( the & was missing from the second example)

Code (csharp):

1.  
2. // Render everything *except* layer 14
3. camera.cullingMask = ~(1 << 14);
4.  
5. // Switch off layer 14, leave others as-is
6. camera.cullingMask &= ~(1 << 14);
7.  
8. // Switch on layer 14, leave others as-is
9. camera.cullingMask |= (1 << 14);
10.