Call for Content: MatCaps (source file)

@mfhscoobydoo so why is your Specular Jade new matcap Black ?

@jonlampel The link for youe metal hard surface Exr is not working anymore

Does anyone have more hard surface oriented modeling matcaps ?

About the old Matcaps

were they just Jpeg files ? Ive cheched this topic on CG masters about Getting Blender 2.79 Matcaps into 2.8 and it seems they were just images. I just downloaded the matcaps as images from the provided github link and install them in Blender just like the current .exr and they seem to work just fine ?

They have to be updated or they are good to use as Jpeg as they are now? SO why not keeping some of the old but true and tried matcaps very useful for surface analysis like these ones
Blender old matcaps
I have a weakness for 5th from left (red one) and it seems Gleb Alexandrov likes it as much as me