You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.5 KiB
47 lines
1.5 KiB
2 years ago
|
# Basis Universal GPU Texture Compression
|
||
|
|
|
||
|
|
Basis Universal is a "[supercompressed](http://gamma.cs.unc.edu/GST/gst.pdf)"
|
||
|
|
GPU texture and texture video compression system that outputs a highly
|
||
|
|
compressed intermediate file format (.basis) that can be quickly transcoded to
|
||
|
|
a wide variety of GPU texture compression formats.
|
||
|
|
|
||
|
|
[GitHub](https://github.com/BinomialLLC/basis_universal)
|
||
|
|
|
||
|
|
## Transcoders
|
||
|
|
|
||
|
|
Basis Universal texture data may be used in two different file formats:
|
||
|
|
`.basis` and `.ktx2`, where `ktx2` is a standardized wrapper around basis texture data.
|
||
|
|
|
||
|
|
For further documentation about the Basis compressor and transcoder, refer to
|
||
|
|
the [Basis GitHub repository](https://github.com/BinomialLLC/basis_universal).
|
||
|
|
|
||
|
|
The folder contains two files required for transcoding `.basis` or `.ktx2` textures:
|
||
|
|
|
||
|
|
* `basis_transcoder.js` — JavaScript wrapper for the WebAssembly transcoder.
|
||
|
|
* `basis_transcoder.wasm` — WebAssembly transcoder.
|
||
|
|
|
||
|
|
Both are dependencies of `THREE.KTX2Loader` and `THREE.BasisTextureLoader`:
|
||
|
|
|
||
|
|
```js
|
||
|
|
var ktx2Loader = new THREE.KTX2Loader();
|
||
|
|
ktx2Loader.setTranscoderPath( 'examples/js/libs/basis/' );
|
||
|
|
ktx2Loader.detectSupport( renderer );
|
||
|
|
ktx2Loader.load( 'diffuse.ktx2', function ( texture ) {
|
||
|
|
|
||
|
|
var material = new THREE.MeshStandardMaterial( { map: texture } );
|
||
|
|
|
||
|
|
}, function () {
|
||
|
|
|
||
|
|
console.log( 'onProgress' );
|
||
|
|
|
||
|
|
}, function ( e ) {
|
||
|
|
|
||
|
|
console.error( e );
|
||
|
|
|
||
|
|
} );
|
||
|
|
```
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
[Apache License 2.0](https://github.com/BinomialLLC/basis_universal/blob/master/LICENSE)
|