Smoothness slider missing, how to re-enable or is it even possible or hello?

[recore67]

is there a way to get the smoothness slider on a gltf shader, or perhaps a way to turn down the reflection scale?

[atteneder]

Hi,

glTF materials/shaders have a roughness property, which controls the same physical property as smoothness does on other shaders. It's just the inverse (mathematically roughness = 1-smoothness).

For even greater control of the specularity of a material, there's also the glTF extension KHR_materials_specular, which is not yet supported (see #208).

hth