Richard Sahlin

Well, either way it is a material property that is only calculated once per material based on IOR values. - First, the clearcoat IOR which is the interface between air...

I know that the spec defines the punctual lights as being `infinitely small points`, ie they have no solid angle. There is no need for an effect such as blooming...

I think you misunderstand. There will be no limitation of roughness - this is just a shader bugfix in the functions that creates the specular lobe (NDF) The sampleviewer implementation...

We already have a PR that adresses this issue - on a node level: https://github.com/KhronosGroup/glTF/pull/1760 Please look into that and if that solves your usecase @edzis then please close this...

Well I guess that if the purpose of this extension is to allow toggling the visibility of geometry - then I think we should use the definition in #1760 -...

I agree with @droettger and would say that we have a bug in the sampleviewer implementation (and present in webviewers I tested) 1: Light hits the clearcoat interface - here...

@emackey Regarding critical angle/total internal reflection. >This means there would be an angle of total internal reflection, where emitted light could not escape near the Fresnel edges. This darkens the...

Food for thought! Perhaps it's better to make this into a vendor extension (remove KHR prefix) and rename to `materialx_shader_graph` or something to that effect? That way you would be...