On 2/27/07, Philipp Klaus Krause <[EMAIL PROTECTED]> wrote:
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Since the discussion on sale2x touched the topic of texture compression
and Timothy stated that he wants to stay away from it for now because of
patents I'd like to give an overview about the interesting texture
compression algorithms. I think texture compression is important since
it helps with the bottleneck of memory throughput.
[snip]
Thank you for that survey. We could possibly investigate one of those
royalty-free methods. Do you know what exactly it is about the
patented one that is patented? I would assume that it's the
compression technique (like how LZW was patented), but there may be
something else.
Something we could consider doing is designing a compression scheme
that is easy to compress in hardware. This would complicate memory
management (software would not know in advance how much space to
allocate to the texture... and what if the texture is pathological and
actually gets bigger?), but we could automatically convert textures to
the compressed format. Remember that this is for a future product,
where we'll have the resources to do this kind of thing.
Don't talk about future products too much. We don't want to suffer
from the Osborne effect.
--
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Favorite book: The Design of Everyday Things, Donald A. Norman, ISBN
0-465-06710-7
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