higher frames = slower motion...right?

C

Crazylikeafox

Weaksauce
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why is it that on shows like "the mythbusters" they have cameras that record at hundreds of fps which makes video slower, yet when i get into the high hundreds in games such as counter strike source the motion seems to be the same speeds as if it was like 60 fps?
 
if they record at high fps, let's say 180fps, if they then reduce the timeto 60fps (of what they already shot), it will go slower, but still look smooth, mmk
 
They take say 100 fps, but then they show it at the regular 24 fps rate, so to show 1 second worth of frames, it takes 4 seconds
 
Because you don't have the special glasses that bend light they way they are supposed to on your computer screen, which your television does automagically for you.... The dilithum crystals that slow down time appropriately in your TV are also missing in your computer monitor. It also requires the magic faeries to poof out the magic slow-mo seeing dust out your television speakers.

Notice, no television speakers on your computer...










are you serious?
 
Crazylikeafox said:
why is it that on shows like "the mythbusters" they have cameras that record at hundreds of fps which makes video slower, yet when i get into the high hundreds in games such as counter strike source the motion seems to be the same speeds as if it was like 60 fps?
Click to expand...

With high speed cameras they more frames you pack into a second the more you can record. If you are only displaying 1 frame every 1 second you are missing out on everything that is between each second. The faster the framerate cameras can use (some allow up to 40,000 frames per second and the best can even do millions of frames per second) the more each second is broken down into more frames in slow motion.

That's a simple explanation, but it should be easy to understand.

The phenomena is different in games, you aren't recording something and playing it back in slow motion. You are simply rendering and outputting as many frames in a second as you can at full speed, not in slow motion. If you were to slow it down to 24 or 29.9 frames per second (PAL and NTSC) then the more frames you had packed into a second the slower it would appear.
 
Brent_Justice said:
With high speed cameras they more frames you pack into a second the more you can record. If you are only displaying 1 frame every 1 second you are missing out on everything that is between each second. The faster the framerate cameras can use (some allow up to 40,000 frames per second and the best can even do millions of frames per second) the more each second is broken down into more frames in slow motion.

That's a simple explanation, but it should be easy to understand.

The phenomena is different in games, you aren't recording something and playing it back in slow motion. You are simply rendering and outputting as many frames in a second as you can at full speed, not in slow motion. If you were to slow it down to 24 or 29.9 frames per second (PAL and NTSC) then the more frames you had packed into a second the slower it would appear.
Click to expand...

THANK YOU! your the only one who took the time to write a detailed explanation and are the only one not being an asshole to me just because i don't know something that i guess is supposed to be obvious :rolleyes: but thanks man!
 
Crazylikeafox said:
THANK YOU! your the only one who took the time to write a detailed explanation and are the only one not being an asshole to me just because i don't know something that i guess is supposed to be obvious :rolleyes: but thanks man!
Click to expand...


It's Brent's specialty. ;)
 
To be a stickler here, NTSC is clocked at 29.97fps :p

As Brent said, in a renderer, you aren't using time as a basis for the number of frames that are drawn each second. The video card just draws as many frames as it can.
 
None of these went all the way to explaining how slow-mo works.

A camera (using film), when wanting slow-mo, will shoot the scene at, for the sake of argument, 48 fps, which is double the 'normal' shooting speed of 24 fps.
Then it is played back at normal speed, i.e. 24 frames per second. Now what you SEE at playback is slow motion at half speed. Slowing down 48 fps to 24 without loss of smoothness.

The other explanations about why when you get more fps on a video card the 'speed' still stays the same were correct.
 
eno-on said:
None of these went all the way to explaining how slow-mo works.
Click to expand...
I thought the same, and intended to clarify, until I saw this post:
They take say 100 fps, but then they show it at the regular 24 fps rate, so to show 1 second worth of frames, it takes 4 seconds
Click to expand...
Which pretty much sums it all up.
 
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