Hi guys,

Nice day!

Is there a way to vary the specular angle by procedural noise or texture across the surface, I am trying to modify it inside mantra surface shader without any success, it seems that houdini ignores the effect.

Cheers,
Kind regards,

it is, just don't use very low numbers since it usually produces artifacts, that's probably a bug
so for example angle varying between 0 and 10 will produce artifacts around 0
range 0.5 - 10 seems to be artifacts free
so just be careful for now

Thanks Tomas,

I still experience the problem, and I use your method to replace the input of surface model node inside mantra surface shader, it doesn't work, there's no effect and houdini proceeds its own way just like the parameter has not been modified yet.

Currently I could only mix a new surface model node inside or just construct a totally new material from scratch.

Is that a bug?

Cheers,
Best regards