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Staro 21.07.2003., 10:29   #1
Jelc
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Datum registracije: May 2002
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NVIDIA-based Graphics Cards Will Have a Bug in Half-Life 2?

E...sad...
Najvjerovatnije će se to moći nekako rješiti-pitanje je kad.
Mislim da je to posljedica toga kaj je NVidia muljala sa specifikacijama svojih grafulja/jedan tjedan izjave da će biti to-i-to...,drugi tjedan druga priča/...pa za dva tjedna odluče sve promijeniti...

Ili je samo marketinška patka...

NVIDIA-based Graphics Cards Will Have a Bug in Half-Life 2? - 12:48 am EST - MrB
X-bit labs has written an article about the inability of current DX9 cards to enable FSAA with one of the most anticipated games of the year, Half Life 2. The bright side though is that there is a possible solution to the problem for ATI's DX9 cards, from the 9500 to the 9800.

According a Valve officials quoted in forums at HalfLife2.net web-site, there are problems with the way that current hardware implements FSAA. If you enable it, you will see a lot of artifacts on polygon boundaries due to the way that current graphics processors sample texture subjects with FSAA enabled.
Valve continued that this is a problem for any application that packs small textures into larger textures. The small textures will bleed into each other if you have multi-sample FSAA enabled.

Currently both leading graphics chips designers use multi-sampling or hybrid multi-sampling + super-sampling methods to for FSAA.

The developers of the legendary Half-Life game said that drivers are not likely to solve the problem, however, it still can be solved for graphics cards based on VPUs from ATI Technologies, such as RADEON 9500-, 9600-, 9700- and 9800-series. As for NVIDIA GeForce and GeForce FX-series, there are practically no chances to find a workaround, according to Valve.

Some industry sources indicated that the problem with such FSAA is a known one and is to be addressed in DirectX 9.1 and next-generation graphics processors with Pixel Shaders 3.0 and Vertex Shaders 3.0, such as ATI Technologies’s code-named R420 and NVIDIA’s code-named NV40 VPUs and derivatives. Both next-generation products will come later than the Half-Life 2 that is expected to be available by October.




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