[glTF] KTX cubemaps support

pex-gl / pex-renderer

Physically based renderer (PBR) and scene graph for PEX.

https://pex-gl.github.io/pex-renderer/examples/index.html

MIT License

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[glTF] KTX cubemaps support #130

Open vorg opened 5 years ago

vorg commented 5 years ago

Filament is using them, CesiumJS recently added support and there is discussion here and here on glTF forums.

Upsides:

potentially better quality than realtime generated octahedral maps

Downsides:

dependency on filament tooling currently
matching dynamic generation would need to be implemented

vorg commented 5 years ago

Another reason to add ktx support https://www.npmjs.com/package/texture-compressor

CLI tool for texture compression using ASTC, ETC, PVRTC and S3TC in a KTX container. Easily compress for all hardware using sensible defaults but with the option to pass any custom flag directly to the tool.