Wednesday, January 24, 2007
Monday, January 22, 2007
Flash 9 for linux release
Flash 9 for linux is no longer in beta stage. Check it out there, tarball and rpm available
http://labs.adobe.com/downloads/flashplayer9.html
http://labs.adobe.com/downloads/flashplayer9.html
Friday, January 12, 2007
Frame Per Second
Figures come first.
NTSC : 29.97fps
PAL: 25 fps
720p30 : 720p video at 30 fps
720p60 : 720p video at 60 fps
Modern video cards, often featuring NVIDIA or ATI chipsets, can perform at over 160 fps on intensive games such as F.E.A.R.
However, an average 17" CRT monitor can reach 85 Hz, meaning that any performance reached by the game over 85 fps is discarded. And LCD monitor works at 60Hz.
For 30 fps, time between 2 frames = 1000ms/30 ~33ms
For 60 fps, time between 2 frames = 1000ms/60 ~16ms
For 85 fps, time between 2 frames = 1000ms/85 ~12ms
Here come the question, what is the purpose of having a so-called 2ms response time LCD?
ps: 2ms is not the real figure of response time of a pixel between switching one and off.
NTSC : 29.97fps
PAL: 25 fps
720p30 : 720p video at 30 fps
720p60 : 720p video at 60 fps
Modern video cards, often featuring NVIDIA or ATI chipsets, can perform at over 160 fps on intensive games such as F.E.A.R.
However, an average 17" CRT monitor can reach 85 Hz, meaning that any performance reached by the game over 85 fps is discarded. And LCD monitor works at 60Hz.
For 30 fps, time between 2 frames = 1000ms/30 ~33ms
For 60 fps, time between 2 frames = 1000ms/60 ~16ms
For 85 fps, time between 2 frames = 1000ms/85 ~12ms
Here come the question, what is the purpose of having a so-called 2ms response time LCD?
ps: 2ms is not the real figure of response time of a pixel between switching one and off.
Thursday, January 11, 2007
High Definition
It will be a year of high definition, either high definition video or TV.
TV producers have pushed tons of huge slim TV and a lot more in the coming days. Between LCD TV and plasma, LCD TV will be the winner.
Most LCD TV in the market will use HD-ready as the selling point. But you got to be carefully in choosing them as HD-ready doesnt worth much.
Here comes those HD standards: 480p, 720p, 1080i and 1080p.
480p : 480 lines of progressive video (480 lines per frame). DVD quality.
720p : 720 lines of progressive video (720 lines per frame).
1080i : 1080 lines of interlaced video (540 lines per field).
1080p : 1080 lines of progressive video (1080 lines per frame).
1080i and 1080p usually refers to 1920x1080 resolution and is often called Full HD..
As you can see, 1080p is the highest standard and the most difficult to achieve of course.
Sometimes you may come across some LCD TV claiming to be 1080p compatible but then you figure out it is only running at 1366×768 , are they cheating?
No, they are just telling you that their TV is capable to recieve 1080p signal but then they will downscale it into a video that fit to 768 lines.
Next time, be careful when choosing a HD-ready TV.
TV producers have pushed tons of huge slim TV and a lot more in the coming days. Between LCD TV and plasma, LCD TV will be the winner.
Most LCD TV in the market will use HD-ready as the selling point. But you got to be carefully in choosing them as HD-ready doesnt worth much.
Here comes those HD standards: 480p, 720p, 1080i and 1080p.
480p : 480 lines of progressive video (480 lines per frame). DVD quality.
720p : 720 lines of progressive video (720 lines per frame).
1080i : 1080 lines of interlaced video (540 lines per field).
1080p : 1080 lines of progressive video (1080 lines per frame).
1080i and 1080p usually refers to 1920x1080 resolution and is often called Full HD..
As you can see, 1080p is the highest standard and the most difficult to achieve of course.
Sometimes you may come across some LCD TV claiming to be 1080p compatible but then you figure out it is only running at 1366×768 , are they cheating?
No, they are just telling you that their TV is capable to recieve 1080p signal but then they will downscale it into a video that fit to 768 lines.
Next time, be careful when choosing a HD-ready TV.
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