Going through Materialx repo I still didn't get it (found only Lama Add node): https://sourcegraph.com/search?q=context%3Aglobal+repo%3Agithub.com%2FAcademySoftwareFoundation%2FMaterialX+file%3Aadd&patternType=standard&sm=1&groupBy=repo [sourcegraph.com]
Goal: Combine 3 MTLX standard surface shaders to get a rainbow effect on CD. How it should be done properly?
MTLX Mix node "Mix" param is somewhat confusing when mixing so I need to eyeball it (I assume this is not how it is supposed to be).
Proportional mixing (40% from shader 1, 30% from shader 2, and 30% from shader 3) still didn't get desired result:
- first mix node value = 0.571
- second mix node value = 0.429 (1 - 0.571)
In H19.5, SurfaceShader signature is present, while in H20 it's gone (with a few other signatures):
Thank you!