It supports KHR_parallel_shader_compile as well as a
thread pool of GL contexts.
- we have a new 2-priorities queue for shader compilation
- use this feature in gltfio in the ubershader case
* Fix a crash by setting not exist material parameters on ubershader
* gltfio: add getFeatureMap, remove logic for dummy textures
Co-authored-by: Philip Rideout <philiprideout@gmail.com>
Mathias Agopian
daemyung jangandPhilip Rideout