Question about performance

[spvn]

Hi there sorry to leave an issue on what I know is sort of a temp repo. I found this from this repo steamvr dev thread: https://steamcommunity.com/app/358720/discussions/0/357286663672053464/

Thanks a lot for sharing this because it's the bare bones of what I'm looking for to work on a similar system to yours. However, I realised that when running the standalone build, it takes about 20% CPU, which is a pretty big performance hit that affects whatever VR application you're running at the same time, causing some noticeable lag. This is in comparison to HOTK which this was built off of which uses <5% CPU.

Did you ever manage to update this to improve the performance? I've been profiling and going through the code but am unable to find out what's causing such a big performance hit. Thanks a lot, hope you'll be able to provide some tips.

[uLan08]

Ah yes, I managed to fix this and improve the performance. I don't know if you've noticed but HOTK used it's own ControllerManagers, ControllerScripts, etc. and that actually is the main reason why HOTK only uses 5% of CPU. The problem was not because of the code but because of using the default CameraRig prefab from SteamVR. The Camera components are not needed anymore so it has to be disabled. The Camera (eye) needs to be disabled and the Camera and gameview script in Camera (head).

I think you will encounter problems disabling them though and you might need to edit the SteamVRController_Manager. Just let me know.

[spvn]

Hi thanks for pointing me in the right direction. I've tried disabling the cameras and there are indeed issues with it. Did you edit the HOTK scripts for use in the end? Or just edit the SteamVR files? The HOTK scripts seem much more bare bones but it might be possible to add stuff like detecting input to them. Or did you just need to edit the SteamVRControllerManager to account for all the missing elements?

EDIT: Straight up removing the camera component on Camera (eye) and (head) seems to just cause the Controllers to get deactivated and thus not accept input, I have no idea what script is causing that. Do you recall what the issue was?

[uLan08]

Yes you can do it either way. You can use the HOTK scripts and just provide your input detection or you can just edit the SteamVR scripts. I was actually baffled by this issue as well, the guy who created the HOTK helped me out greatly on this one and I just remembered that you can actually just clone this one https://github.com/Hotrian/VROverlay
This one is fully working. Haha. All credit goes to him.