Author Topic: How to render dust filter material?  (Read 5652 times)

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Offline nonamer

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How to render dust filter material?
« on: June 13, 2016, 07:03:10 am »
Hi everyone,
i'm wondering how to render a proper dust filter. For a project I have to render different shapes of those filters. They are made from PE foam and are avaiable in different porosities measured in PPI (pores per inch). I attached two pictures of filters with different porosities. Does anybody have a clue how to set up the materials for a realistic rendering in Keyshot?

Thank you in advance!

Offline Artur

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Re: How to render dust filter material?
« Reply #1 on: June 13, 2016, 09:31:41 am »
Same problem here.

Looking for new ideas.
Currently I am using bump and diffuse mapping, but the texture seems flat and very fake.

Offline TpwUK

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Re: How to render dust filter material?
« Reply #2 on: June 13, 2016, 09:44:18 am »
These kind of materials are notoriously difficult for any render engine. The only real satisfactory result will only be achieved via displacement.

Martin

Offline Esben Oxholm

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Re: How to render dust filter material?
« Reply #3 on: June 13, 2016, 11:05:49 am »
The big problems with materials like these is that they are actual three-dimensional structures. If you take a closer look the first image you see a structure with overlapping and interconnecting geometry, which is something that (as far as I know) can't be done with a material. 

With that said, I guess that the dense one of the foams you show can be faked in KeyShot with a normal- or bump-map if you are not going to do any close-ups of the material.


Online Finema

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Re: How to render dust filter material?
« Reply #4 on: June 13, 2016, 11:42:52 pm »
Hi
Perhaps a starting point with a seamless texture in Metal Material + Bump, Roughness and Opacity.
it's just a test.....

Online Finema

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Re: How to render dust filter material?
« Reply #5 on: June 13, 2016, 11:52:29 pm »
here an other view

Offline Artur

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Re: How to render dust filter material?
« Reply #6 on: June 13, 2016, 11:56:25 pm »
Good solution.
But the foam material I am making doesnt handle close ups very well.

Any advice on this?

Offline TpwUK

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Re: How to render dust filter material?
« Reply #7 on: June 14, 2016, 01:07:33 am »
@Finema - Great material that would be more than acceptable for thin dust filters such as those used in PC cases.

@Arthur - If you post me your part that is foam i will add displacement to it and post it you back :)

Martin

Offline nonamer

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Re: How to render dust filter material?
« Reply #8 on: June 14, 2016, 03:18:00 am »
Hi
Perhaps a starting point with a seamless texture in Metal Material + Bump, Roughness and Opacity.
it's just a test.....

What kind of texture are you using for the mesh? Is it an opacity texture? Can you upload that texture, so we can try using it. Thank you.

Online Finema

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Re: How to render dust filter material?
« Reply #9 on: June 14, 2016, 04:26:14 am »
here in attachment >

Offline Artur

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Re: How to render dust filter material?
« Reply #10 on: June 14, 2016, 08:42:30 am »
Nice one.
But the pattern is predictable.
The foam is a more organic and random structure.

Online Finema

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Re: How to render dust filter material?
« Reply #11 on: June 14, 2016, 08:49:26 am »
In this case, you can open the texture in Photoshop and randomize it

Offline Artur

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Re: How to render dust filter material?
« Reply #12 on: June 15, 2016, 12:51:42 am »
Yes, Photoshop is a solution for the predictable pattern problem. But the seamless integration would then fail...

Online Finema

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Re: How to render dust filter material?
« Reply #13 on: June 15, 2016, 02:57:31 am »
you can recreate the seamless in photoshop with Offset menu.

Online Finema

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Re: How to render dust filter material?
« Reply #14 on: June 17, 2016, 11:08:18 pm »