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Windows 7/8 transcluent selection rectangle slow and lag
Hi,
has any of you don't have translucent selection rectangle slow and laggy on Windows 7/8 ?
I have tested many Windows 7 and 8 machines and on all of them there is lag and selection box is slow.
Lag is due to the v-sync enabled (which is very bad choice made by Microsoft for user experience) but why is it slow?
When selection box gets bigger and bigger it gets slower. When it is big for the whole screen I can always see it's moving choppy.
That would be explainable 20 years ago, when computers didn't have enough power to calculate translucent rectangle for the whole screen, but today? Every game renders tens of full screen transparent rectangles with fancy shaders few times per frame with 100 frames per second.
Even if I really tried I couldn't write program that draws transparent rectangle slower than hundreds frames per second. And in Micso
And for the lag: in Windows XP selection box is not laggy, because of two things:
* no v-sync, so every new frame is put directly to the screen as soon as possible
* nice trick of predicting the movement of mouse and drawing selection box ahead
This is video of selection box on Windows XP:
https://www.youtube.com/watch?v=m-za...ature=youtu.be
And here on Windows 7:
https://www.youtube.com/watch?v=v-ye...ature=youtu.be
Both made on the same machine, dual core with GeForce GTX 260 - a card surely capable of drawing a transparent rectangle every frame. Hundred times.
Noticed the lag on 7? I can't stand it, it ruins the whole experience. For me Windows 7 and 8 feels slow, heavy and laggy just because of this. Because of v-sync.
Maybe this video doesn't show this, but on Windows 7 when I make big selection rectangle and move mouse this rectangle chops, skips. Just as games are choppy when fps drops.
Sorry that this is not real question for this forum, or maybe I'm missing something? Maybe you don't have any lag? If you think so, please make a video, because I won't believe it until I see it.
Maybe someone from MS would see this and think about it for the next Windows system.
I hope so.