Recent content by aranfell

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    The Future of Anti Aliasing? Will the Quincunx-Like Blur Technologies Return?

    Entering late (I was busy in my other life)... I assume that arjan means that if an object would be fully occluded in the non-lossy version of the image, it should have zero effect on the lossy version of the image as well. Imagine a black oject that is completely occluded by a white object...
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    The Future of Anti Aliasing? Will the Quincunx-Like Blur Technologies Return?

    FrameBuffer> Supersampling .. I know it's very VERY costly Ghost of D3D> In the past, everyone also agreed that "full screen depth buffering is VERY costly". Look what has happened! Depth buffering was costly primarily because memory was expensive. Nowadays, depth buffering is cheap...
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    SSAA vs. MSAA debate

    To return to an earlier point about the computational costs of SSAA vs. MSAA... The basic problem of ordered-grid supersampling is that if you want to render a feature 1/Nth the size at the same quality, you need N^2 as many samples. Consider a thin polygon that rotates on the screen -- if it...
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    SSAA vs. MSAA debate

    full-screen AA and anti-aliasing within primitives Originally, I believe that the term "full screen anti-aliasing" was coined to distinguish MSAA and SSAA, which anti-alias all primitives, from techniques where you draw some of the primitives in an anti-aliased mode that blends the edges...
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    Why does MS hate attaching "Computer" tag with XBox?

    Lower tariffs (at one time) Sony would have paid lower import tariffs if they could have convinced the European Union that the PS2 was a computer, not a game console. Here's a sample link: http://www.buzzle.com/editorials/10-1-2003-46045.asp This link says that the tariffs were going to be...
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    Ideas for troll-free forums

    Fancy bboard software for allowing limited moderator power might be nice but isn't required. Define a procedure for what has to happen before someone gets banned, e.g. N moderators have to agree that certain types of infractions have occurred, and there must be M warnings before the ban. Then...
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    eMagin Z800 3d HMD ; OLED, 800x600, head-tracking integrated

    It means that the head tracker can follow you as you turn all the way around. The fixed-head-position field of view is rather narrow compared to real vision -- equivalent to a 105" screen at 12', so less than 45 degrees, presumably measured diagonally accross the screen. Still, I don't think...
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    New AA options in Detonator

    FYI, OpenGL has long had a feature called "Alpha to mask". It allows the source alpha value to be converted into a mask that specifies which samples to kill for a multi-sample render target. For example, if the source alpha is 0.5, then half of the samples would be killed. This allows...
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    New demo

    Consider a nearly horizontal or nearly vertical edge sweeping across the image. With N samples that are all in separate rows and columns, the result is N increases in intensity as the edge sweeps across a pixel. So in this case, a sparse pattern produces nearly the same edge AA quality as an N^2...
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    Better color space

    It is extremely desirable to have the three color components orthogonal to each other, so that they can be interpolated independently (unlike this algorithm). That doesn't mean they have to be RGB -- YUV (more properly YCrCb) also has three orthogonal components. I'm not sure what you get if you...
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    At E3, Phantom is once again MIA

    I agree with you on this, too. What right have we to complain about any legal way that someone chooses to spend their own money? I may not like *everything* that Kyle has to say, but he has a right to say it. Oh, wait...
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    At E3, Phantom is once again MIA

    > In fact, as I've tried to point out over and over again, this kind of thing is commonplace in the industry Oh, well, that makes it all right, then. :-) Glad to have that cleared up. And it's good to know how much you object to people attributing bad motives to other people's actions...
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    Convolution filtering as AA

    It's a difficult tradeoff. Our eyes try to focus on an image until the detail is sharp, so if the whole imge is out-of-focus, it makes it hard to look at. I interviewed at Real3D (obviously many years ago) and they showed off an arcade game that used their technology. The engineer told me...
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    Analyst sees big upside in next-gen Xbox Marketplace

    PS: There is also no LEGAL ambiguity about loaning out an object that one OWNS. I am free to loan out my books and a painting that I purchased -- I just can't copy them except as allowed by "fair use" law (which is under serious attack). Regarding DVDs, I'm no longer sure whetere I own them...
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    Analyst sees big upside in next-gen Xbox Marketplace

    Ahem. If you OWN something (like a book or a painting) you can use it, loan it, or sell it as you please. It's yours. You need permission to legally make copies if it is copyrighted, just as you need permission to legally build a device that uses a patented technology. But the object itself is...
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