Object invisible for 1 camera, visible for another: how to do this?

Troubleshooting graphics
1

Hi people,



for my project I want to have multiple cameras that show different objects in the world; some objects are invisible from one camera and visible from another.



The idea is that the project has units with sensors. Each unit has a POV camera and there is one birdeye view camera. It is possible to switch the view from camera to camera. What I want is that every object is visible from the birdeye view camera, but in the view from a POV camera only the objects within the sensor's range are visible.



I have no idea how to do this. Does anyone has suggestions?

2

Well, you can adjust the camera frustum, but I think that wouldn't be enough.



What shape does the sensor range have?



Cheers,

Tim

3

You could force culling on objects you don't want to see each time you switch camera.



ie : hold a visible objects list and a cam for each unit, when you switch to a unit,

set culling on each object of the list to "dynamic"


mySpatial.setCullHint(Spatial.CullHint.Dynamic);



Set the active camera to the viewport


viewPort.setCamera(unit.getCam());



when you switch to another unit, set culling to "always" for each object of this unit.


mySpatial.setCullHint(Spatial.CullHint.Always);



Your bird view would be another unit, with all the objects of the scene in the list.


EDIT : i assumed you were using JME3, if you are using JME2, i guess there are similar features to change object culling and viewport camera