him225

Vsync without triple buffering and fps

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1 hour ago, mikeymike said:

I set my monitor 4K to 25hz

p3d vsync on tripple buffer on and unlimited FPS

its at 25 FPS in sim

 

Hi, That's right. As I said VSync=On in P3D makes the sim aim for 25 - your monitor refresh frequency.

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2 hours ago, SteveW said:

 

Hi, That's right. As I said VSync=On in P3D makes the sim aim for 25 - your monitor refresh frequency.

Yes,

but why is it not aiming for 25 when disabling it via ncp?

they both need to be set?

im confused 

Edited by mikeymike

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Because it's not got the 25 to refer to.

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1 hour ago, SteveW said:

Because it's not got the 25 to refer to.

I see.. 

thank you.

 

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On 4/18/2018 at 10:28 AM, SteveW said:

Adding the Triple Buffer does not alter the fps it only enables the next frame drawn to be more accurate according to what the scene will be when it is finally displayed.

What is "the next frame drawn to be more accurate according to what the scene will be when it is finally displayed"? More accurate in what sense? Does it require any noticeable cpu overhead?

Thanks.

 

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5 minutes ago, Dirk98 said:

What is "the next frame drawn to be more accurate according to what the scene will be when it is finally displayed"? More accurate in what sense? Does it require any noticeable cpu overhead?

Thanks.

 

It adds a little more smootness at the cost of a little framerate.

But If you system cannot run the Vsync framerate it will cause extra jittering.

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2 minutes ago, GSalden said:

It adds a little more smootness at the cost of a little framerate.

But If you system cannot run the Vsync framerate it will cause extra jittering.

Indeed, on AS EGLL approach (with ORBX FT England), FPS always sink somewhat below 25 FPS (mon. refresh set @25Hz), so I may see some extra jitters due to tripple buffering?

Thanks. 

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2 hours ago, Dirk98 said:

What is "the next frame drawn to be more accurate according to what the scene will be when it is finally displayed"? More accurate in what sense? Does it require any noticeable cpu overhead?

Thanks.

 

Yes since with TB there's more often a free buffer ready to update, less pauses, and there's less deferring of your inputs, sometimes known as antilag.

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