Best Image Format for Cubemaps, 3d Textures ?

terefang · Post by **terefang** » Wed Jul 19, 2006 7:30 am

Hi!

Does somebody know any image-formats that support Cubemaps
or 3d Image Data ?

I know that irrlicht/irrSpintz/LF does not support this or that, yet developing on my Notebook's hardware (ATI Radeon Mobility 7500) means a shader-less world and looking for alternative ways of implementing some features brought up those texture formats.

Baal Cadar · Post by **Baal Cadar** » Wed Jul 19, 2006 9:32 am

DDS supports these and some other useful features (like in-mem compression and cutsom mipmaps) Though irrlicht doesn't support it sadly. though cubemaps can be also implemented as six seperate 2D textures.

hybrid · Post by **hybrid** » Wed Jul 19, 2006 10:42 am

There's a patch available for DDS and some other image formats.

Electron · Post by **Electron** » Wed Jul 19, 2006 12:13 pm

I know that irrlicht/irrSpintz/LF does not support this

LF supports cubemaps, tho as Baal Cada mentions they must be loaded as six seperate textures. Imo this makes more sense, since it allows cubemaps from any of the regular texture formats rather than limiting things to the very few formats that actually support cubemaps

Hmm Baal Cadar I'm afraid I fail to see what the format on hard disk has to do with in-memory compression. Its quite possible to compress any texture in video mem, provided the appropriate GL extensions are available.

hybrid · Post by **hybrid** » Wed Jul 19, 2006 12:33 pm

Then read in-mem compression as precompressed textures and the statement is exact in every bit. I think IrrSpintz also has support for cubemaps, but I'm not sure as I did not follow the latest developments, yet.

Baal Cadar · Post by **Baal Cadar** » Wed Jul 19, 2006 12:40 pm

Indeed, that's what I meant. DDS can store DXT compressed surfaces with their mipmaps all prepared to be loaded in a speedily manner. Of course there is no maigc in DDS, this can all be done in runtime too.