Recent content by nobond

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    OPEN-VG

    Does it literally means it will fade out eventually ... ?
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    How does iPad graphics compare to typical desktop Graphics?

    Hi, where you got this picture please?
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    How does iPad graphics compare to typical desktop Graphics?

    Maybe a dumb question since I know it is very hard to compare two graphics card farily, just want to get a rough idea though. Let us take the new ipad with sgx543-mp4 as an example, put it straight, how may Ipad3 put together will equivalent to a state-of-art nvidia/ati desktop discrete...
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    Open-VG

    Is it fair to say OpenVG is dead, it does not seem to find its way to anywhere?
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    Ray Tracing In General

    HI, the question might be vague Just generally, if we completely ignore the cost, is it true that ray tracing approach is superior than the raster approach ? Or is there anything ray tracing is not good at ?
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    Video memory

    This is really done by the driver of graphics chips? If it runs out of video memory, then has to go for the OS for more memory. Otherwise, it keeps the memory allocaion to itself?
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    Video memory

    kind of basical question. Normally the 3d graphcis card we bought have some on-board video memory. My question is a. How generally these piece of memory is allocated? Is the frame buffer being mapped to here as well? (highly doubt so though). b. The data like texture surely should go into...
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    tesselation factors in dx11

    Yes, from spec, you can only have even/odd, but not both. No idea why.
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    tesselation factors in dx11

    Yes, but if one tess factors is 2 in one egde, there must be something else telling you where is the new vertex is. That is what I do not quite understand. In what way, the new vertex pos are being told to calculate in the dx tesselators.
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    tesselation factors in dx11

    any one can give a brief explaination on what the tesselation factor (or give a link) what it really means in DX11? MSDN website does not make a lot of sense to me. Is there any more basical stuff i can start with ?
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    Catmull-Clark subdivision

    another questoin about cc sudivison, is it my understanding right this is could only handle quaderlaterial polygon rather than triangle mesh .or. more edges in one face(i mean directly?_
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    Why the display is so slow?

    I wrote a simple mesh(.obj)file view with opengl. It is normally ok, but it seemed unbearbly slow when I load huge obj file. E.g beethoven.obj(10K+ vertices, 60K+ triangles). It always takes more than one minute to display the picture on my ogl window. (In ogl, i use vbo+gldrawarray) . I test...
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    opengl vbo basic question

    Yup. Triangle Strip Looks like a sensible thing since quad is not supported in ogl-es as well .
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    opengl vbo basic question

    that is purely a driver thing. I think . HW even does not need to know it.
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    opengl vbo basic question

    Great, that clear my mind. thanks
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