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texture compression?

Started by billybob Jul 29, 2002 at 2:20 AM 2 replies 250+ views

Original Post

Jul 29, 2002 at 2:20 AM

right now, i''m using createTextureFromFile, and i would like to use compressed textures. would using compressed textures mean that i would get the same performance with a say, 256x256 compressed texture vs a 128x128 uncompressed?

d000hg

Jul 29, 2002 at 4:08 AM

You''re always just one step ahead of me aren''t you! Check the SDK app called DirectX Texture Tool in DirectX Utilities, it''ll convert between different formats and tell you the size of the texture.
Remember not all cards support compressed textures though. (Anyone know what chipsets do/don''t?)

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billybob

Jul 29, 2002 at 4:10 AM

quote:
Original post by d000hg
You''re always just one step ahead of me aren''t you! Check the SDK app called DirectX Texture Tool in DirectX Utilities, it''ll convert between different formats and tell you the size of the texture.
Remember not all cards support compressed textures though. (Anyone know what chipsets do/don''t?)

lol, i wouldn''t say that. you may be going slower, but i bet you your code is a whole lot better than my crappy stuff. scru texture compression for now, i''ll do that after i get all this junk working.

Dean Harding

Jul 29, 2002 at 4:42 AM

quote:
Original post by d000hg

Remember not all cards support compressed textures though. (Anyone know what chipsets do/don''t?)

Pretty much all the new ones do. It''s not difficult to write your own decompressor if it doesn''t. S3TC/DXTC is a very clever format

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