Request: how do i get an iridescent gradient material

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kikicobos
Licensed Customer
Posts: 13
Joined: Tue Jun 12, 2018 7:33 pm

Hello,

I use octane and c4d. I have been searching high and low on the web and reading forums but I am still unclear as to how I could achieve a shader like this:

https://www.shutterstock.com/es/image-i ... cXkKw-1-67

I did see this tutorial :
https://youtu.be/hrjB1RkXsko

THe idea is close but I cant get it in lighter pastels colors, or a mother of pearl like the picture. Can anyone help with specifics? thanks
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bepeg4d
Octane Guru
Posts: 10321
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy
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Hi,
play with lights, Camera Imager, and Film Weight settings.
You can also mix with another material to attenuate the Film effect.
ciao Beppe
kikicobos
Licensed Customer
Posts: 13
Joined: Tue Jun 12, 2018 7:33 pm

I will try that thanks
frankmci
Licensed Customer
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Joined: Fri May 26, 2017 2:00 pm
Location: Washington DC

Take a look at "Pearl Metal" in the Live DB as a starting point.
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Pearl Metal shader via Live DB
Pearl Metal shader via Live DB
Animation Technical Director - Washington DC
kikicobos
Licensed Customer
Posts: 13
Joined: Tue Jun 12, 2018 7:33 pm

I dont have anything in my live db, do i have to download presets from someplace? Thanks
frankmci
Licensed Customer
Posts: 917
Joined: Fri May 26, 2017 2:00 pm
Location: Washington DC

The Live DB can be a little flaky, but is a great resource. Some of the shaders there are far from elegantly constructed, but you can still learn a lot from dissecting them and figuring out how they work. The thumbnails can sometimes take quite a while to load, and in the mean time it seems to be dead. Also, you have to select the actual categories in the hierarchy to see their contents, not the enclosing directory. It's not exactly intuitive. So, for instance, to view the general metal materials you need to select LiveDB/Materials/Non-Organic/Metal, then wait a little for the thumbnails to load. The Pearl Metal I mentioned is actually not in Metal, but in Misc.

The Search function also only seems to work within the currently active category, and not within all sub-directories and categories within a selected directory as you would probably expect. The functionality of LiveDB is overdue for an update.

Here's a C4D scene with the shader I mentioned, in case LiveDB is still giving you trouble.

Be aware that all those Color nodes used in the LiveDB material are actually unnecessary for a shader this simple; all those values can be held by the Material node itself. Sometimes it's nice to break them out, though, for visual feedback, or for efficiency, such as here where they used a single color node to drive both the Material Roughness and the Sheen Roughness. In the screen grab, you can see they are functionally identical with and without the extra nodes.
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PearlMetal.c4d.zip
Pearl Metal scene file
(92.95 KiB) Downloaded 470 times
Pearl Metal extra nodes
Pearl Metal extra nodes
Animation Technical Director - Washington DC
kikicobos
Licensed Customer
Posts: 13
Joined: Tue Jun 12, 2018 7:33 pm

Thank you so much for this and taking the time to answer in depth. That helps a lot! I really appreciate it!! :D
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