Half Evil
Golden Master
- Messages
- 16,076
Here is the link, you may or may not find this internesting. I however liked it.
http://www.newton.dep.anl.gov/askasci/gen01/gen01025.htm
And if u dont wanna click the link. here you go.
________________________________________________________________
Question - Some guy I keep talking to argued with me that the eye
can only see an equivilency of 24 frames per second. But I do not think
that's a fact. When I rotate a sprite at 60 or 80 fps it is quite
different than that of 40 or 30 fps.
Can someone clear this up for me? Thanks.
----------------------------------------
When an image strikes the retina the nerve impulses last approximately
1/25 sec. This is why motion pictures appear to move continuously, even
though the number of frames/sec. is not extremely fast. This is also why a
TV screen does not flicker. If you have seen some "old time movies" from the
20's and 30's they appear "jerky" because at the time the technology did not
allow for frames to appear quickly enough to "fool" the eye, and the eye was
able to resolve successive frames.
There is another effect that may be coming into play also, and that is a
"strobe" effect. A strobe light flickers very short pulses of light at
variable controlled speeds. If some object is rotating in front of the light
at some multiple of the pulse speed, it will appear to stand still. If the
strobe light is speeded up or slowed down slightly the image will appear to
move forward or backward slowly.
<EDIT>
Just found this http://www.100fps.com/how_many_frames_can_humans_see.htm
and this
http://en.wikipedia.org/wiki/Frame_rate
and....
http://www.cs.ucl.ac.uk/research/higherview/mccarthy_video_quality.pdf
this is cool all in its self....
http://reviews.cnet.com/Labs/4520-6603_7-5020816-2.html
last thing for tonight...
http://www.sharkyextreme.com/features/article.php/1273571
http://www.newton.dep.anl.gov/askasci/gen01/gen01025.htm
And if u dont wanna click the link. here you go.
________________________________________________________________
Question - Some guy I keep talking to argued with me that the eye
can only see an equivilency of 24 frames per second. But I do not think
that's a fact. When I rotate a sprite at 60 or 80 fps it is quite
different than that of 40 or 30 fps.
Can someone clear this up for me? Thanks.
----------------------------------------
When an image strikes the retina the nerve impulses last approximately
1/25 sec. This is why motion pictures appear to move continuously, even
though the number of frames/sec. is not extremely fast. This is also why a
TV screen does not flicker. If you have seen some "old time movies" from the
20's and 30's they appear "jerky" because at the time the technology did not
allow for frames to appear quickly enough to "fool" the eye, and the eye was
able to resolve successive frames.
There is another effect that may be coming into play also, and that is a
"strobe" effect. A strobe light flickers very short pulses of light at
variable controlled speeds. If some object is rotating in front of the light
at some multiple of the pulse speed, it will appear to stand still. If the
strobe light is speeded up or slowed down slightly the image will appear to
move forward or backward slowly.
<EDIT>
Just found this http://www.100fps.com/how_many_frames_can_humans_see.htm
and this
http://en.wikipedia.org/wiki/Frame_rate
and....
http://www.cs.ucl.ac.uk/research/higherview/mccarthy_video_quality.pdf
this is cool all in its self....
http://reviews.cnet.com/Labs/4520-6603_7-5020816-2.html
last thing for tonight...
http://www.sharkyextreme.com/features/article.php/1273571