Material Help.

General discussion about Indigo Materials - material requests, material developement, feedback, etc..
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Originalplan®
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Material Help.

Post by Originalplan® » Thu Mar 03, 2016 5:06 am

Hey guys,need a bit of help.
How do i create a material which looks like a CD bottom??
Is that even possible? :|

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thesquirell
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Re: Material Help.

Post by thesquirell » Thu Mar 03, 2016 6:29 am

Long ago, there was this thread:

http://www.indigorenderer.com/forum/vie ... 37&t=10581

Never tried to pull it out, though.

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Oscar J
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Re: Material Help.

Post by Oscar J » Thu Mar 03, 2016 6:33 am

The colourful look comes from interference, which Indigo supports using the coating material type.

http://www.indigorenderer.com/forum/vie ... =7&t=12036
http://www.indigorenderer.com/forum/vie ... =7&t=12036
http://www.indigorenderer.com/documenta ... es/coating

I would try a very high resolution radial bump map, something like this or ideally even more high res...:
http://evermotion.org:8080/exclusiv/ani ... eflect.jpg

... to control the thickness of the coating with.

Edit: Nope, that doesn't work. :)

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Oscar J
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Re: Material Help.

Post by Oscar J » Thu Mar 03, 2016 7:18 am

... actually one can sort of make it look like a CD. This is not accurate though. :)
Attachments
Screen Shot 2016-03-02 at 20.17.25.jpg

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Originalplan®
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Re: Material Help.

Post by Originalplan® » Thu Mar 03, 2016 7:49 am

Thanks @thesquirell @ Oscar !
Much appreciated!

I was thinking maybe use this > http://www.indigorenderer.com/materials/materials/1055 with on big ring.
With a super high exponent inside a plastic material...so light can bounce and break.
But no luck.
:(

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Oscar J
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Re: Material Help.

Post by Oscar J » Thu Mar 03, 2016 8:05 am

Try using this map I made as coating thickness with interference on. You need to play around with the values inside Indigo a bit though.
Attachments
radial_reflect4.jpg

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galinette
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Re: Material Help.

Post by galinette » Thu Mar 03, 2016 9:27 pm

Oscar J wrote:The colourful look comes from interference, which Indigo supports using the coating material type.
No, it comes from grating diffraction, which ends up in highly dispersive, highly anisotropic BRDF behavior. This is absolutely not supported, it has to be faked somehow.
Eclat-Digital Research
http://www.eclat-digital.com

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Oscar J
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Re: Material Help.

Post by Oscar J » Thu Mar 03, 2016 9:32 pm

I stand corrected. :)

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Originalplan®
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Re: Material Help.

Post by Originalplan® » Thu Mar 03, 2016 10:36 pm

Thanks Oscar, i did a little test i think its kinda a good fake CD.
@galinette i used your ISL script from one of your materials and tweaked a bit.
Attachments
Screen-Shot-2016-03-03-at-11.29.32-AM.png
Has a plastic top
Screen-Shot-2016-03-03-at-11.09.20-AM.png
No plastic

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CTZn
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Re: Material Help.

Post by CTZn » Thu Mar 17, 2016 6:18 am

hey that's wicked ! Is this using Oscar's technique ?
obsolete asset

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Oscar J
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Re: Material Help.

Post by Oscar J » Thu Mar 17, 2016 7:30 am

Looks great! Looks like it renders kinda slowly though?

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zeitmeister
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Material Help.

Post by zeitmeister » Thu Mar 17, 2016 7:49 am

Looks great! Would you mind to share the code? I am looking for something like that...


Cheers, zeiti
Cheers, David



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Indigo 4.4.15 | Indigo for C4D 4.4.13.1 | C4D R23 | Mac OS X 10.13.6 | Windows 10 Professional x64

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Originalplan®
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Re: Material Help.

Post by Originalplan® » Tue Apr 05, 2016 2:50 am

CTZn wrote:hey that's wicked ! Is this using Oscar's technique ?
:shock: SORRY GUYS JUST SEEN YOUR COMMENTS!!
Dont know why i didnt get any notification for new comments!
I try to find the material if i didnt deleted it i will share it!
@ Oscar yepp it renders slow but not superslow.

Sorry agin for not replying in time!!! :oops: :oops: :oops: :oops:

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Originalplan®
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Re: Material Help.

Post by Originalplan® » Tue Apr 05, 2016 3:29 am

Time Machine saved the day Mat was deleted.
Here it is yep it uses Oscar's technic.
It is not perfect by any means...but feel free to tweek it.
And post it.
Attachments
DVD_TEST1.pigm.zip
(2.01 MiB) Downloaded 124 times

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zeitmeister
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Re: Material Help.

Post by zeitmeister » Wed Apr 06, 2016 5:06 pm

Thank you very much!!


Cheers, zeiti
Cheers, David



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