An unencumbered Haxe library to parse the KTX texture file format from Khronos.
var bytes: haxe.io.Bytes = ...
var data = KTX.load(bytes);
// data.glType ...This library is pretty straightforward and supplies you with all the necessary information to forward the texturedata directly to opengl. There is little to no data processing necessary during load time which makes this a great addition/alternative to other common texture formats.
Since KTX is all about compressed and uncompressed textureformats, you will need extra tools to author and review the textures. Thankfully there are quite a few useful commandline and GUI toolkits out there. A few of them are:
- PVRTexTool contains a set of GUI and cmdline utilities as well as plugins for 3Ds max, Maya and Photoshop
- cmftStudio is a nice GUI tool to author all kinds of cubemaps
- cmft is the cmdline version of the aforementioned cmftStudio
This is a little helper to help me remember how the common formats relate to eachother
| old D3D | new D3D | OpenGL | OpenGL support |
|---|---|---|---|
| DXT1 | BC1 | S3TC | EXT_texture_compression_s3tc |
| DXT3 | BC2 | S3TC | EXT_texture_compression_s3tc |
| DXT5 | BC3 | S3TC | EXT_texture_compression_s3tc |
| ATI1 | BC4 | RGTC1 | 3.0 (or via extension) |
| ATI2 | BC5 | RGTC2 | 3.0 (or via extension) |
| - | BC6H | BPTC_FLOAT | 4.2 (or via extension) |
| - | BC7 | BPTC | 4.2 (or via extension) |