Hi,

OK, so I'm going through a tutorial on Digital Tutors called “Creating Custom Shaders in Houdini” and it's in Houdini 15.

When the presenter puts down a surfacemodel SHOP node, it has three parameters that are already promoted.

Diffuse Color
Specular Color
Opacity

However, when I do the same thing in Houdini 15.0.426, only Diffuse Color shows up.

Also, when I attempt to add the surfacemodel SHOP to a box or some other geo, it gives me a warning.

Bad parameter reference: “opac_clrr” in parameter /shop/surfacemodel/ogl_alpha.
Bad parameter reference: “opac_clrg” in parameter /shop/surfacemodel/ogl_alpha.
Bad parameter reference: “opac_clrb” in parameter /shop/surfacemodel/ogl_alpha.

Any ideas why?

Thanks,

Jim

I ended up promoting the Opacity parameter and that removed the warning.
Not sure why these aren't default parameters anymore.

Just had the same problem. Promoting opac_clr seems to fix it, thanks for posting.