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User: pnewhook

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  1. Re:OpenGL - do they still have that? on OpenGL SuperBible 5th ed. · · Score: 1

    Except there is no such thing as a left hand coordinate system. It's just plain WRONG.

    Also, according to here, it says "Direct3D uses a left-handed coordinate system. If you are porting an application that is based on a right-handed coordinate system, you must make two changes to the data passed to Direct3D."

  2. Re:How about non-Windows and non-Mac? on OpenGL SuperBible 5th ed. · · Score: 1

    Well, part of the problem goes back to the "standard always a few years out-of-date" aspect, meaning that if you want to use the newest card features, you usually need to have three different code paths

    Completely untrue. OpenGL has been updated almost three times since the last DirectX update.

    This is stuff that DirectX will just plain do for you.

    Not true. The base OpenGL standard has the same features as DirectX. There is no need for extensions to do any advanced features. OpenGL 4 came out in July this year and is fully supported and has everything DirectX can do. (actually the same can be said for OpenGL 3)

    The problem with DirectX in the past is every few years they completely change the API without supporting older versions. The requires everyone to do a complete rewrite. Conversely OpenGL 1 code will still compile with no issues even on a brand new OpenGL 4 system. This is the stability I'm looking for.

  3. Re:How about non-Windows and non-Mac? on OpenGL SuperBible 5th ed. · · Score: 1

    OpenGL certified drivers have to pass quality tests. If they do then the image should look the same regardless of what platform you run it on. Not all driver manufacturers do this correctly however. In my experience, ATI has notoriously crappy OpenGL drivers.

  4. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    please read here for the 25% figure

    Also diesel has problems with cold weather starts. The last thing I want to do is to burn extra electricity on block heating for a very minor increase in fuel economy.

    Diesel does have its place though. Heavy machinery would not b e able to function on gasoline. But for consumer vehicles, gas is the better option.

  5. Re:How about non-Windows and non-Mac? on OpenGL SuperBible 5th ed. · · Score: 2, Insightful

    This is mostly due to the extra debugging and analysis support that they have in the DirectX SDK.

    Not available if you want cross platform. There are a lot of OpenGL debug tools as well.

    OpenGL can be fast for getting something together pretty quick, but then figuring out why it doesn't work the same way on other systems can be very troublesome.

    Well DirectX has solved this one by not having any other systems. It's Windows or nothing.

    In my experience, I have also seen people who use OpenGL redoing things that DirectX has done for you in the past, such as reference counting.

    Why should a graphics system handle a programmers reference counting? This gets into your coding strategy. Handle it the same way you handle access to any other shared resource like a memory or device handle.

  6. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    But diesel emissions have more particulate (soot), and the particulate is smaller. This results in a pollution that is very easy to inhale. As a result, diesel exhaust has been linked to lung cancer.

    Also gasoline engines are easier to start/stop making them much more suitable for use in hybrids.

    Even the fuel economy argument doesn't hold water. Pro-diesel advocates say that the energy density of diesel is higher and as a result you get better fuel economy (about 30% improvement in reality). This is true but what is ignored is that it takes 25% more oil to make diesel than it does to make gasoline.

    So overall, gas and especially gas/hybrid is superior to diesel.

  7. Re:How about non-Windows and non-Mac? on OpenGL SuperBible 5th ed. · · Score: 2, Interesting

    Game Development with OpenGL consumes significantly more time than equivalent development in DirectX

    Can you elaborate? I'm curious as to why you would say that. In my experience OpenGL is far easier to understand and write than DirectX.

  8. Re:OpenGL - do they still have that? on OpenGL SuperBible 5th ed. · · Score: 2, Interesting

    For graphics quality and capability, there really isn't that much difference between OpenGL and DirectX. They have the same feature set and the same rendering ability. The only difference is that DirectX uses this ridiculous counterintuitive left and rule for polygons. OpenGL uses right hand rule which is the way Engineering and God intended.

    Other than that, OpenGL is the only real open standard for graphics. DirectX is only on Windows. OpenGL is on Windows and most other platforms.

    Also OpenGL is the only solution if you want to generate your own 3D stereoscopic scenes. DirectX does it for you in the driver but this is just a cheap approximation. If you want accurate, non-eye fatiguing stereo, then OpenGL is the only solution.

  9. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    It is a well known fact that there are far more emissions from diesel than a regular gasoline engine. That's why there are so few diesel cars available for sale in north america - they don't pass emission standards.

  10. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    The only stinky, noisy, and smoke-spewing diesels I see fall into two categories: a) old & poorly maintained engines, and b) pickups owned by rednecks who think belching black smoke and making noise is "cool".

    Really? Then why would there be scientific papers describing the problem of particulate emissions from diesel engines? It is a well known fact that there are far more emissions from diesel than a regular gasoline engine. That's why there are so few diesel cars available for sale in north america - they don't pass emission standards.

  11. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    Not a chance, unless "the speed limit" is very low.

    I'm talking in town speed limits. No I can out accelerate most cars because I've got max torque at zero (from the battery), and my CVT means I don't have any transmission shift lag. Many times I find I have to lay up on the gas because the car in front of me slows down suddenly as it shits to the next gear.

  12. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: 1

    I have a hybrid with a CVT. I can basically out accelerate almost anything on the road (except for true sports cars) from a standstill to the speed limit.

  13. Re:Diesels already do this. on Mazda Claims 70 mpg For New Engine, No Hybrid Needed · · Score: -1, Troll

    Well in north america, there are very few places to refuel a diesel. Besides that they stink, spew black smoke and are incredibly noisy.

  14. Re:Gold? on NASA Strikes Gold and Water On the Moon · · Score: 1

    Size has nothing to do with being called an asteroid. If it's not in a planetary orbit, and its not orbiting a planet (moon), then its an asteroid or a comet.

  15. Re:Gold? on NASA Strikes Gold and Water On the Moon · · Score: 1

    Ever since everything here became a car analogy, I get my information from wiseGeek: http://www.wisegeek.com/what-is-the-largest-asteroid-ever-to-hit-earth.htm

  16. Re:Gold? on NASA Strikes Gold and Water On the Moon · · Score: 1

    Well it would follow that the composition of the moon soil would be similar to the composition of the earth's crust since the moon was formed out of the earths's crust from an asteroid impact. This shouldn't be a surprise but is further proof of the asteroid impact theory.

  17. Re:Reality's well-known biases on Scientists Fight Back In Canada · · Score: 1

    It is a fact that the long form census was MANDATORY and not filling it out COULD result in a fine (up to $500) or jail time (up to 3 months). People HAVE been fined in the past for refusing to fill it out.

    The ONLY thing that has changed is that the census is no longer mandatory. It still exists. If you want to fill it out, then go ahead and fill it out. The only group making noise over this completely non-issue is some media outlets because there is nothing else to report on, and the opposition who can't think of anything else more important to bitch about.

  18. Re:Reality's well-known biases on Scientists Fight Back In Canada · · Score: 1

    To further the quote: "When asked about those rumours, Mr. Goodyear said such conversations are not worth having."

  19. Re:Reality's well-known biases on Scientists Fight Back In Canada · · Score: 0

    Ridiculous. The long-form census is still there, it's just voluntary. What the government got rid of was the mandatory part of it. Going to jail for not telling the government how and when I drive to work and go about my daily business is an affront to civil liberties. Getting rid of this was a GOOD thing.

    And I also highly disagree with the statement that the government is considered 'anti-science'. This is just liberal media spin. I've never hear the government considered in that light by any serious source.

  20. Re:Why Still Pursuing This? on First Human-Powered Ornithopter · · Score: 1

    Mars atmosphere is 1% of Earths atmosphere. This makes fixed wing airplanes that use lift useless. Ornithopers don't use lift and mathematically it should work if the basics get worked out.

  21. Re:Why Still Pursuing This? on First Human-Powered Ornithopter · · Score: 1

    Because the air is too thin for any aircraft that uses lift over the wings to stay aloft. The only viable alternative is to have a method of flight similar to bees and dragonflies which is what the ornithopter is based on. That or flight which is entirely thrust based like a rocket, but that is extremely fuel inefficient.

  22. Re:Why Still Pursuing This? on First Human-Powered Ornithopter · · Score: 1

    Two reasons I can see

    1. An ornithopter is really the only practical aircraft on Mars

    2. Human powered fuelless flight for when the oil dries up.

  23. Re:short sighted summary author on HDCP Master Key Revealed · · Score: 1

    You really are incapable of carrying on an adult conversation aren't you?

  24. Re:Less protection for free speech? on In Canada, Criminal Libel Charges Laid For Criticizing Police · · Score: 1

    You want to talk about freedom in broadcast? How about the fact that until VERY recently in Canada, it was ILLEGAL to play oldies on FM radio stations. Suck on that, maple leaf.

    What are you talking about? I've never heard of that. Please provide a reference.

    Suck on that, maple leaf.

    If you want an adult conversation on freedoms, great. But keep your bigotry out of it.

  25. Re:Less protection for free speech? on In Canada, Criminal Libel Charges Laid For Criticizing Police · · Score: 1

    My point is in this regard, the US system is less free. Government censorship of public broadcasts is not freedom.