koobas.hobune.stream
VSync Every Second Blank Stays at 60 Instead Of Dropping To 30
If I set VSync to "Don't sync", the framerate is often very high (in the hundreds), as expected.
If I set VSync to "Every VBlank", the framerate stays around 60, as expected.
But, if I set VSync to "Every Second VBlank", the framerate still stays at 60, instead of dropping to 30.
What the hell?
I'm using Unity version 4.5.3f3
I'm not entirely sure how VBlank works, but hopefully these ideas will help you find a solution faster:
Framerate might be throttled to 60 if you use VSync, so increasing load might have an effect if you looked at max FPS, but not the throttled FPS
"Every Second VBlank" uses half the amount of VBlanks "Every VBlank" does would for me be the more logical conclusion, resulting in half the processing time.
Hope this helps.
Yes, if I increase the load, it can drop below 60. But it stays around 60 if the load doesn't force it down.
Yes, as I said (and as the documentation says), "Every Second VBlank" should half the framerate relative to "Every VBlank". $$anonymous$$y problem is that this does not happen. Both options result in 60 fps (providing a heavy load doesn't force it down).
Yeah, but I'd imagine that various systems perform optimisations that can only be taken advantage of if they know that the framerate is in sync with the screen update.
Anyway, why the hell isn't it working?
