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kolby
08-05-2015, 03:23 AM
Hi all !
I need make silicone materials as you can see in attachment. What material node is best for this ? Final scene will be illuminated only by hdr image, no lights. Can someone help me, please ?
Thanks.

If someone want to try, grab the model.

RebelHill
08-05-2015, 03:49 AM
One of the SSS or possibly absorption materials. Id presume sigma 2 would be the best bet, though you could also, Id imagine, do something good with skin, or possibly even dielectric at a push.

Every4thPixel
08-05-2015, 05:18 AM
I would use the dielectric node and if you need more absorption the sigma, but looking at your image I would say dielectric...

prometheus
08-05-2015, 05:41 AM
That seem to be two materials, the main object, blurred semi transparent which I would take for silicone, the other seems more like clear plastic, if not a much clearer type of silicon?

probably would try out sigma for the main object silicone, and dielectric for the outer part clear plastic.
strange no one seem to have uploaded a silicone preset on site:http://3dxyz.pro
I think the old preset site had some? donīt know where the collections arIe located here in the threads, I think there should be a thread somewhere with uploaded old preset central collections.

kolby
08-05-2015, 08:11 AM
Hi, thanks. Yes, there are two or even three materials, but only different silicons. I am playing with sigma and dielectric nodes but I can not come close to reference image. I am not so good player. :-) Any silicone preset to start with will be good.

prometheus
08-05-2015, 08:43 AM
Hi, thanks. Yes, there are two or even three materials, but only different silicons. I am playing with sigma and dielectric nodes but I can not come close to reference image. I am not so good player. :-) Any silicone preset to start with will be good.

I will have to check my archives of the old preset page, but it may take a bit of time when I get the time to do so..meanwhile..hereīs a thread with some uploaded collections that some users have recompiled, check all pages cause some users are uploading various collections there, I couldnīt find a specific silicone surface in there, but I could have missed sucha surface preset with my fast checking of the stuff.

http://forums.newtek.com/showthread.php?127028-60-favourite-surface-presets&highlight=preset+central

a nice tutorial and many others are over att Matt Gorners site..
main page...
http://www.pixsim.co.uk/

And the direct link to the movie tutorial covering the sigma...

http://www.pixsim.co.uk/gfx/exploring_the_sigma_shader_tbn.png
http://www.pixsim.co.uk/video_tutorials/Exploring_the_Sigma_Node_Shader.zip

MSherak
08-05-2015, 01:01 PM
Customized in about 4 mins with my new base surface shader I'm working on. The light is different of course since I don't have the one used for the reference which will contribute to much of the look. Render time 2m43s on my SP3.

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-M

erikals
08-05-2015, 02:12 PM
like Prometheus, i agree that Sigma could be a good choice, might be worth a try

erikals
08-05-2015, 02:20 PM
also see >
http://forums.newtek.com/showthread.php?114462-translucent-plastic-problem

kolby
08-06-2015, 05:41 AM
Customized in about 4 mins with my new base surface shader I'm working on. The light is different of course since I don't have the one used for the reference which will contribute to much of the look. Render time 2m43s on my SP3. -M

Yup, You are right, lighting and enviroment is maybe more important than the material itself. I received another new reference images and they look different. Currently I am trying to adapt some semitransparent plastic, downloaded from 3dxyz.

JoePoe
08-06-2015, 07:55 AM
Absolutely..... all about the HDR here. Well, at least that's where the wrestling match begins :).
If you can share that, then you can get some targeted advice.

Other than that everything is true I'd say..... Dielectric for the Blue and just about anything else for the rest (a la post #2)

I used Delta on White and Sigma2 on Rough.

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edit: oh, I removed an interior row of polys where the two materials meet. Was just showing up as an odd refraction (to my eye).

Kryslin
08-06-2015, 08:36 AM
I got some respectable results using Sigma2 for both.

kolby
08-06-2015, 08:41 AM
Absolutely..... all about the HDR here. Well, at least that's where the wrestling match begins :).
If you can share that, then you can get some targeted advice.

Other than that everything is true I'd say..... Dielectric for the Blue and just about anything else for the rest (a la post #2)

I used Delta on White and Sigma2 on Rough.

129157

edit: oh, I removed an interior row of polys where the two materials meet. Was just showing up as an odd refraction (to my eye).

Perfect ! I am agree with dielectric as the best for bluish part and Sigma for rough. What about render time ?

JoePoe
08-06-2015, 01:57 PM
I'm on a fairly anemic i7 quad 2.5GHz 16GB

That render was at 2/24 1 shadow sample, took 4:30 (I think)

This was at default 1/9, took 2:45
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...and to clean up some of the noise, one at 1/128.... 17min.
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