I’m working on a dynamic camera system where each camera is activated by entering a trigger box. When the player exits the box, the camera begins a Sphere Trace (visibility trace) to check if the player is occluded, and I use a Gate to control when tracing is allowed.
Everything works except one major issue:
Sphere Trace continues tracing from old cameras even after the Gate is closed. So there is many ghost sphere traces when I see the gate is closed when debug…
Make sure the gate is closed. Having multiple objects with the same BP makes it hard to distinguish one from the other.
Can you replace the trace with (or just add) a print string of the camera’s name to see which one has an opened gate?
Try creating a manual variable IsActive or better yet just set the whole actor to not tick instead and see if that works.
Even though the new camera starts tracing correctly,The old cameras never stop tracing.
They keep firing SphereTraceByChannel from their old Start locations.
It seems like the trace loop continues running inside the old camera blueprint even after I close the Gate.
I have tried:
Closing the gate before tracing
Closing the gate after tracing
Closing the gate both inside and outside the trace logic
Setting booleans to block trace
Disabling tick
Moving the trace code behind a DoOnce
Resetting the DoOnce
Making sure only one box overlap is active
All the cameraBlueprints are copies I test to do hardcopy of BP and attach it. Same problem new camera stsart trrace nicely byt old one is active.
Can you place a breakpoint on the CloseGate event?
Is it even called? Maybe you are loosing the reference to the camera when trying to call it.
Can you show the BP where you are calling the event that closes the gate.
Or is my logic wrong. I try to close the gate always when entering a new box to and then spawn the current camera.
Yea - here it is:
When you Begin Overlap you try to close the gate on “self” which is the actor you started overlapping with. Not the one that was previously active.
You need to somehow get a reference to the currently active camera actor to call Close Gate on that.
Probably you just need to store it in the player pawn or controller and make the switch from there: Call an event “Change Camera” and pass the new camera to the controller/pawn and let it disable the old one and activate the new one.
This also what I started do and what AI recommnded also. I test to implement it. Thank you so far. I get back
Now it works, but in the opposite way.
When I enter the collision box, it activates the correct camera and starts the trace from that camera. When I exit the box, the trace stops.
What I actually need is the reverse logic:
When exiting the box, it should start the new trace and also stop all previous traces, but right now this Blueprint logic only does the opposite and I’m getting confused trying to flip it….
Solution to this was get all actors from the class and destroy all of them but active one.
