Tobias Häußler

> To my mind they are strong enough arguments that we may consider A to be resolved, with the conclusion that we do need explicit support for thin-walled in the...

There is exactly the same problem with Schlick Fresnel and iridescence in glTF. The extension is based on the method from Belcour/Barla and the base material uses Schlick Fresnel. The...

Memory usage is completely controlled by the garbage collector at the moment. Furthermore, callback functions eat a lot of memory, because each callback pointer needs a full page (4 KB)...

The sample viewer probably is following the (non-normative) implementation recommendations in KHR_materials_clearcoat. This implementation has some limitations, in particular: > The index of refraction of clearcoat and base layer do...

In [KHR_materials_transmission](https://github.com/KhronosGroup/glTF/blob/7bbd90978cad06389eee3a36882c5ef2f2039faf/extensions/2.0/Khronos/KHR_materials_transmission/README.md#implementation-notes) there is another mention of the G term which should be changed as well. I did a bit of digging to find out when and why this diverged,...