Combing Two Shaders in Color mixer - Extremely long render times (30+ Mins for simple scene)

[HappehLemons]

Here's somewhat simple scene. I'm merging two Shaders in the color mixer, with a point cloud made for my wetmap. I did this following Jeff Wolverton tutorial on Pluralsight on "Creating a Dynamic Wet Map Shader in Houdini"

In his second example with the torus, he does almost this exact thing and is renders very quickly. I've got a 36 thread CPU, and let this sit for 30 mins and it still doesn't finish.

It seems like mixing two principal shaders (I've tried core and classic shaders too) is the root cause here, however in his tutorial he does this "Surface Model Shaders" (Which I think is classic core now?) and I still get supper long render times. Can someone lend me a helping hand here?

 

Edited September 28, 2018 by HappehLemons

[davpe]

for that you are supposed to use Layer Mix.

[anim]

this may give you some insight on how to properly layer materials

https://vimeo.com/212603065

 

[HappehLemons]

On 9/29/2018 at 11:49 AM, davpe said:

for that you are supposed to use Layer Mix.

I later found out this was the solution. In the Jeff Wolverton tutorial they used color mix, so I stuck with that. Thing's went perfectly after I moved onto the layer mix.