dantman
commented
3 years ago I'm sorry. When you're running EVRC and ED, you're basically running 2 games on your computer at the same time. I have tried to optimize things to keep that performance hit low, but you're ultimately still running 2 games both asking your GPU to render stuff.
I don't really have the hardware needed to test low-spec machines. I have a GTX 1080 myself, and even I get light but continual reprojection with the mid-tier settings I use in ED. A GTX 1060 was pretty much the absolute min-spec to run VR so you've got no headroom available for EVRC.
The render texture size reduction is already in the latest release (that was a long time ago). Lots of the overlays (namely most buttons) use static images as textures instead of camera rendering. Many of the panels that do use camera based rendering like the meta panel with the edit/menu mode buttons are rendered on-demand (they only render when a visual change happens). And the live panels (the ones I can't make render only on-demand, like the edit panel and 6DOF controller) only render at 10fps.
I do have some ideas of stuff I could do that may or may not reduce the performance impact of EVRC.
- Instead of indiscriminately rendering live panels at 10fps I could instead create a render pool to schedule all the renders. So instead of allowing some of those to overlap, I could make the scheduler ensure that only one camera.Render ever happens per frame. (Assuming that overlapping renders is even a thing that's currently an issue)
- Making the 6DOF controller change from a live panel to a on-demand one when you let go if it and it doesn't visually change
- Seeing if there's a way to provide a "Low" performance setting with reduced texture sizes and changed camera settings
- Trying to ditch the multi-overlay based setup and instead rendering one 3d camera from the HMD perspective as a layer over top (I'd love to do this, though there are reasons it's hard/impossible currently).
But like I said I can't actually test wether any of those has any effect on performance.
If you are interested in playing around with some Unity development there are things you can do to see if there are any changes I can make to improve performance.
- In the Unity project settings you can try tweaking various 3d rendering settings and seeing if there's anything we don't need that can be turned off and improves your FPS. I could swear that I turned off most of the performance impacting things we don't need, like shadow rendering but there may be more.
- All the render textures live in the same folder. You can edit their dimensions (keep the same aspect ratio) and see how much more FPS you get by reducing the size of all of them to lower quality. I did want to avoid to many jagged textures, but maybe I could add a low-res mode for low-spec hardware.
- Search in the hierarchy for the objects with
RenderFpscomponents, those control the FPS that live components run at. You can try reducing the FPS and see what effect that has. You can also try giving them different settings, i.e. make one run at 2fps and another at 1fps and see if it creates a sawtooth pattern in your FPS that would indicate that FPS is higher when only the 2fps panel renders and the 2 panels overlap and both render when it's time for the 1fps panel to render. Likewise you could also use prime numbers (3fps, 7fps, ...) to try tricking panels into not overlapping as much and see if that improves FPS here and there (also indicating overlapping camera.Render calls).
filipemonkey
hi advice request... i am often getting crazy lag when in edit mode with the holo buttons panel unlocked. the same thing happens 90% of the time in galaxy maps. at worst it can appear stuck for a number of seconds. i read through past issues and see this is a multi camera overlay thing. this issue was closed as i understand by reducing the texture of overlay. i presume this is included in version 0.8 of the VRcockpit!? i run a 1060 gaming laptop but get the lag in the above modes often.
can you advise if there is something i can do to help (other than upgrade my PC), particularly the galaxy map lag, makes it hard to play at times as can take me 10mins just to set a route up.
is it purely a computer performance issue?
cheers & keep up the great work, love it.