I'm animating a variable using CVDisplayLink on macOS, and I'm curious if there's any reason to not use dispatch_sync from the display link's thread (assuming I'm only "driving" one animation per display link). Anyone know?
It seems to work fine. I tried dispatch_async first (onto the main thread, btw) and I noticed how frames would get skipped due to the thread switching being too slow, I guess.
When using dispatch_sync, no frames are skipped, but (of course) the time between display link "ticks" has increased. I figure it's no big deal since the display link will wait until the next vsync before ticking again.
I guess, either way, there will be times where the display refreshes before the main thread can update in response to the display link, but I'm still curious if one approach is better than the other. Thanks!
PS: Maybe using a NSTimer would be better? Since that would let me execute directly on the main thread, instead of using GCD from another thread. I assume that would be unable to vsync, but idk.