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Newstream
01-15-2009, 12:55 PM
Hi,

I seem to recall a C4D tutorial where it is explained how to achieve an engraved look by creating a material without using sketch & toon. I've googled but cant seem to find it anymore.

The problem with going the S&T route is that the engraved lines colide in the geometry which doesn't look great.

http://badtastic.com/cg/Picture%201.png

Does anyone remember the tutorial or can point me in the right direction?

Any input highly appreciated! :)

Cheers / Alex

vid2k2
01-15-2009, 01:07 PM
Was that a post by Nick Woolridge (sp?)

Found the .mov on my HD
NPR 5-19-06

NWoolridge
01-15-2009, 02:02 PM
Hi,

Yeah, I think you might be referring to this setup... I used this before I got S & T, and still use it, actually, because I think it gives better results in many situations (though it is much more limited in its overall scope than S & T).

It has two components:

- The NPR camera, which can be used alone to produce outlines and depth-discontinuity lines (based on shadow maps). This is a refinement of a technique originated by Naam.

- A set of NPR material setups, that use C4D's Lumas shader and cool LEVR mode to produce engraved, stippled, or halftone lighting effects.

Let me know if you need more info on how to use it...

Nick

georgedrakakis
01-15-2009, 03:36 PM
Hi,

I seem to recall a C4D tutorial where it is explained how to achieve an engraved look by creating a material without using sketch & toon. I've googled but cant seem to find it anymore.

The problem with going the S&T route is that the engraved lines colide in the geometry which doesn't look great.
Cheers / Alex
hi,
are you sure it;s the geometry?
have you checked your s&t line settings that effect the opacity or thickness?
if you are using splines to control teh opacity-thickness, make sure that the 1st & last point have the same Y value.
hth,
george

LucentDreams
01-15-2009, 04:22 PM
looks to me like it is where the self shadowing of the geometry lies.

Newstream
01-15-2009, 07:07 PM
Thank you very much Nick!

That's looks like quite an elaborate Xpresso setup there...
Looking forward to studying it in more detail and trying it out as soon as I get home.

George, I didn't think of that.. Need to check that as well. Many thanks.
I was messing with the material tags, setting them to "frontal" in the hope of removing the seam on the shoulder (and reoccurring in other places depending on camera angle)

There's an appealing graphic quality to images that exhibit the "engraved look" which can also vary depending on engraving technique applied as demonstrated here. (http://www-cs.engr.ccny.cuny.edu/%7Ewolberg/projects/engraving/)

It would be kinda interesting to multiply 2 opposite diagonal engravings (via Fushion etc) to recreate or (at least try) get something similar to the third example on the above page-link where the opposing diagonal lines tend to overlap in the shadowed regions of the image / geometry ;)

Thanks again.. :thumbsup:

/ Alex

NWoolridge
01-15-2009, 09:33 PM
It would be kinda interesting to multiply 2 opposite diagonal engravings (via Fushion etc) to recreate or (at least try) get something similar to the third example on the above page-link where the opposing diagonal lines tend to overlap in the shadowed regions of the image / geometry ;)
/ Alex

There are a couple of examples of that approach in the file I uploaded... There really is a great deal of flexibility in C4D's material system, networks or not!

Best,

Nick

Per-Anders
01-15-2009, 10:22 PM
The tutorial you were originally thinking of was probably the toon shading one on my website.

Newstream
01-16-2009, 09:29 AM
The tutorial you were originally thinking of was probably the toon shading one on my website.

Actually its this old thread: http://forums.cgsociety.org/showthread.php?t=553659
(finally found it....) but the related levr techniques you describe in your tutorial are also excellent!

Thanks / Alex

pzdm
01-16-2009, 10:43 AM
Actually its this old thread: http://forums.cgsociety.org/showthread.php?t=553659
(finally found it....) but the related levr techniques you describe in your tutorial are also excellent!

Thanks / Alex

hello
here is a simple example what I descripted in my thread....

http://www.c4dexchange.com/en/detail.aspx?did=183

Cheers P

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