Umm i think your a little confused. There is a big difference b/w 32bpp and 32bit color depth. Most(all?) consumer level cards max out at 24 bits of color information per pixel. When you set "32bit color" You get 8bits Red, 8bits Green, 8 bits Blue, and 8bits of something else. What that something else is depends on the card and the drivers. It can be alpha channel, z-buffer, stencil buffer, accum-buffer, or just wasted in order to get better alignment(and to have a bigger number). Now, that being said high end graphics cards/workstations will let you have higher color depths, I have seen 30bit(10R 10G 10B, and the other 2 bits used for things like multi sampling) and 64(16R 16B 16G) mentioned, although I have not had the luxury of seeing/using these systems myself.
Instead of spending 6k on a a spiffed out display device spend 500-1000 on a very nice profesional graphics card(heck i think some of the cheaper Matrox cards have this) that supports an overlay plane. CAD software has been making use of these for years. In fact some SGI's support makeing everything in the overlay plane 'superbright' so that labels stand out. And with the overlay plane you are not stuck with white as your only 'chroma key' color choice.
Sure macs and IBMs use processors that based on the PPC ISA, BUT they each use incompatible supersets of the PPC ISA. And AFAIK the altivec unit (the subject of the anouncment) is not on any IBM machine.
The quote is a bit of an over statement, BUT the article makes reference to hardware encription devices that have status indicators on the _UNENCRYPTED_ side of the device. They do not say that they actually were able to 'read' these LEDs, but suggest that they are driven by the unencrypted data lines. If this is true then some engineers need to get shot!
Kinda, but its always a pretty significant simplification. Only recently games have started adding things like Inverse Kinimatics(IK) in order to create motion sequences that are not just replays of motion capture.
These days a game programming text looks like an abridged edition of a scientific modelling text.
A big part of the trick is to have a realistic model of the human body. There are hundreds of joints of several varieties and many muscles controlled by the worlds most complex single entity(the brain). This makes it very hard to come up with a 'first principles' model. This is why most animation packages today (AFAIK) model the human body as a series of rigid parts(bones) connected by springs(muscles) with control points that the animator can use(the brain).
Sony could have stomped the competition by dropping the price of the PS2, sy, by $50, or adding some extras and keeping the price the same, but why they didn't is beyond me.
I had the exact same thought when the X-box came out. Then when sony did nothing it dawned on me why: Lowering the price when the X-Box would be an admission (in the eyes of John Q. Consumer) that the PS2 is inferior to the X-Box and so while it it might help sales in the immediate future, it would probably hurt them in the long run (the PS3 isnt quite on the horizon).
The videos look very fake to me. Did anyone else notice that the iWalk is _very_ still whenever the screen actually in use? Just plop a nice blue square in where the screen should be and composite in generated screen shots.... Not too dificult if you have any experience w/ special effects. And as someone else pointed out, the apple logo spinning!?!?!? You've got to be joking!
I think mostly this is because computational resources are _VERY_ limited on a satelite. Most sats use a space hardened 8086 or similar. Only the huge projects get any computational power (eg iirc hubble has a 486). And of course better CPUs or specialized encryption hardware would eat precious power. I have not personally worked on a satelite, but have sat in the back of a couple of design reviews for a satelite and seen people fight over tiny fractions of a watt.
In fact, come 2005 I wouldn't be shocked to find a couple of more players in the ring...
Well, that is assuming M$ gives up (and how often does that happen these days? look at MSN "7")... soon your Z-box(or maybe the AA-box:) lease(you wouldn't want normal people to actually own anything, that gives them too much power) will be a citizenship requirement, and used as your national id card;)
Actually if you read to the end of the article it specifically metions XOR... so this is realy just a network aware RAID5(sort of). ie each packet is a 'hard drive' in a RAID array and if you lose a hard drive you can reconstruct the original. Now RAID arrays are usually set up to only survive if a single drive goes out at a time, but it is mathematically possible to set it up so that given M drives N (M>N) can be lost and still be able to reconstruct the original.
Now this sounds like they are being 'gready' in a 'netiquette' sense. If you ignore TCP flow control you can seriously screw a network, but in the process you can get some insane levels of throughput.
I remember reading a paper a while back (forget where) where a researcher exploited some problems in the Windows TCP implementation (it would send out a new packet for every recieved ACK, so he ACK'ed each byte...) to download IE in a matter of seconds, and kill the campus backbone at the same time.
IRC in the development of the moon lander there was a disagreement amongst the engineers about whether the module should have a slight positive pressure or slight negative pressure (relative to the TINY atmosphere of the moon). Some wanted to prevent 'contaminating' the moon with microbes or dust from earth, while the other camp was afraid of an 'Andromeda Strain'. And again IIRC the positive pressure camp won. This was partly b/c of social pressure to avoid events similar to those in Chrighton's book. This is a clear case of the social implications of SF on technology.
Maybe Im being synical but I will believe it when I see it. I would be a little surprised if M$ even had complete/acurate/usefull docs for all the protocols and mini-apis embedded into windows that are used by M$ 'middleware'. So I wouldn't hold me breath waiting to see these. Also I think that this settlement is a nice step in the right direction, but not far enough. It doesn't sound like it has enough bite. Do you think that *3* people can really patroll all of M$ ?!?
Check out xtraceroute. It gives you a view of the globe (using OpenGL) and will attempt to locate a given IP and the route to that IP and plot it. It uses a list of know routers around the globe and simple rules similar to:
If domain name contains.md. then its probably in Maryland...
actually these are already in use. In particular to model things like huricanes or tornadoes where the roi (region of interest) is moving. I remember reading a ddj article about this stuff a few years ago. Also I think this is available in MM5. See http://www.mmm.ucar.edu/mm5/
Neither. It does not suport any kind of distributed memory(suposedly they are working on this) and a process can only be on one node at a time (no magic parallelization(sp?)). So it doesnt quite fall into the Beowulf class. Also it does not have any kind of fault tallerance at the moment. What it is good for (from what I have read, Ive never used it) is making efficient use of a remote cluster. ie lets say you have something like google (except with higher cpu utilization) with a dynamic load, this would be perfect.
Slashdot Mirror
Umm i think your a little confused. There is a big difference b/w 32bpp and 32bit color depth. Most(all?) consumer level cards max out at 24 bits of color information per pixel. When you set "32bit color" You get 8bits Red, 8bits Green, 8 bits Blue, and 8bits of something else.
What that something else is depends on the card and the drivers. It can be alpha channel, z-buffer, stencil buffer, accum-buffer, or just wasted in order to get better alignment(and to have a bigger number).
Now, that being said high end graphics cards/workstations will let you have higher color depths, I have seen 30bit(10R 10G 10B, and the other 2 bits used for things like multi sampling) and 64(16R 16B 16G) mentioned, although I have not had the luxury of seeing/using these systems myself.
Kevin
Instead of spending 6k on a a spiffed out display device spend 500-1000 on a very nice profesional graphics card(heck i think some of the cheaper Matrox cards have this) that supports an overlay plane. CAD software has been making use of these for years. In fact some SGI's support makeing everything in the overlay plane 'superbright' so that labels stand out. And with the overlay plane you are not stuck with white as your only 'chroma key' color choice.
Kevin
First I think the word "All" is a bit strong. Sometimes an old _trusted_ bit of code is a GOOD THING(R).
... Im getting a little long in the tooth . . . please upgrade me
Maybe instead of just crapping out like some piece of proprietary beta software it should start putting little messages in the logs as it gets older:
Apr 3 16:27:09 pc19 crap[666]: crapWare v0.1234
And these messages should appear more and more frequently over time
Kevin
Sure macs and IBMs use processors that based on the PPC ISA, BUT they each use incompatible supersets of the PPC ISA. And AFAIK the altivec unit (the subject of the anouncment) is not on any IBM machine.
Kevin
The quote is a bit of an over statement, BUT the article makes reference to hardware encription devices that have status indicators on the _UNENCRYPTED_ side of the device. They do not say that they actually were able to 'read' these LEDs, but suggest that they are driven by the unencrypted data lines. If this is true then some engineers need to get shot!
Kevin
A _slightly_ more obscure shakespeare joke.
Kinda, but its always a pretty significant simplification. Only recently games have started adding things like Inverse Kinimatics(IK) in order to create motion sequences that are not just replays of motion capture.
These days a game programming text looks like an abridged edition of a scientific modelling text.
A big part of the trick is to have a realistic model of the human body. There are hundreds of joints of several varieties and many muscles controlled by the worlds most complex single entity(the brain). This makes it very hard to come up with a 'first principles' model. This is why most animation packages today (AFAIK) model the human body as a series of rigid parts(bones) connected by springs(muscles) with control points that the animator can use(the brain).
Kevin
Did you actually read those articles?
Kevin
RTFA - The spec for DDR333 devices is final. The spec for DDR333 DIMMS is undergoing validation.
Kevin
We'd really need some way of making the projection visable to only one player.
...
Think HMD
Kevin
So what are they going to do now? Maybe they should take a page out of the Enron book and start serving pr0n for playboy or penthouse.
Sony could have stomped the competition by dropping the price of the PS2, sy, by $50, or adding some extras and keeping the price the same, but why they didn't is beyond me.
I had the exact same thought when the X-box came out. Then when sony did nothing it dawned on me why: Lowering the price when the X-Box would be an admission (in the eyes of John Q. Consumer) that the PS2 is inferior to the X-Box and so while it it might help sales in the immediate future, it would probably hurt them in the long run (the PS3 isnt quite on the horizon).
The videos look very fake to me. Did anyone else notice that the iWalk is _very_ still whenever the screen actually in use? Just plop a nice blue square in where the screen should be and composite in generated screen shots .... Not too dificult if you have any experience w/ special effects. And as someone else pointed out, the apple logo spinning!?!?!? You've got to be joking!
I think mostly this is because computational resources are _VERY_ limited on a satelite. Most sats use a space hardened 8086 or similar. Only the huge projects get any computational power (eg iirc hubble has a 486). And of course better CPUs or specialized encryption hardware would eat precious power. I have not personally worked on a satelite, but have sat in the back of a couple of design reviews for a satelite and seen people fight over tiny fractions of a watt.
To me it looks like they just took the PI site and simplified quite a bit.
In fact, come 2005 I wouldn't be shocked to find a couple of more players in the ring... ... soon your Z-box(or maybe the AA-box :) lease(you wouldn't want normal people to actually own anything, that gives them too much power) will be a citizenship requirement, and used as your national id card ;)
Well, that is assuming M$ gives up (and how often does that happen these days? look at MSN "7")
Actually if you read to the end of the article it specifically metions XOR ... so this is realy just a network aware RAID5(sort of). ie each packet is a 'hard drive' in a RAID array and if you lose a hard drive you can reconstruct the original. Now RAID arrays are usually set up to only survive if a single drive goes out at a time, but it is mathematically possible to set it up so that given M drives N (M>N) can be lost and still be able to reconstruct the original. ...) to download IE in a matter of seconds, and kill the campus backbone at the same time.
Now this sounds like they are being 'gready' in a 'netiquette' sense. If you ignore TCP flow control you can seriously screw a network, but in the process you can get some insane levels of throughput.
I remember reading a paper a while back (forget where) where a researcher exploited some problems in the Windows TCP implementation (it would send out a new packet for every recieved ACK, so he ACK'ed each byte
IRC in the development of the moon lander there was a disagreement amongst the engineers about whether the module should have a slight positive pressure or slight negative pressure (relative to the TINY atmosphere of the moon). Some wanted to prevent 'contaminating' the moon with microbes or dust from earth, while the other camp was afraid of an 'Andromeda Strain'. And again IIRC the positive pressure camp won. This was partly b/c of social pressure to avoid events similar to those in Chrighton's book. This is a clear case of the social implications of SF on technology.
Is it just me or did the sunspot in the animations from the stanford page look like a mandlebrot set?
Maybe Im being synical but I will believe it when I see it. I would be a little surprised if M$ even had complete/acurate/usefull docs for all the protocols and mini-apis embedded into windows that are used by M$ 'middleware'. So I wouldn't hold me breath waiting to see these. Also I think that this settlement is a nice step in the right direction, but not far enough. It doesn't sound like it has enough bite. Do you think that *3* people can really patroll all of M$ ?!?
Check out xtraceroute. It gives you a view of the globe (using OpenGL) and will attempt to locate a given IP and the route to that IP and plot it. It uses a list of know routers around the globe and simple rules similar to: If domain name contains .md. then its probably in Maryland...
actually these are already in use. In particular to model things like huricanes or tornadoes where the roi (region of interest) is moving. I remember reading a ddj article about this stuff a few years ago. Also I think this is available in MM5. See http://www.mmm.ucar.edu/mm5/
Neither. It does not suport any kind of distributed memory(suposedly they are working on this) and a process can only be on one node at a time (no magic parallelization(sp?)). So it doesnt quite fall into the Beowulf class. Also it does not have any kind of fault tallerance at the moment. What it is good for (from what I have read, Ive never used it) is making efficient use of a remote cluster. ie lets say you have something like google (except with higher cpu utilization) with a dynamic load, this would be perfect.
I have to say that was the most informative white paper I have ever read :)
cd /mnt/cdrom/support/debug/i386/symbols/sys #NT4CD
strings tcpip.dbg | grep -i bsd
_BSDUrgent
_BSDUrgent