Greeble, Greeble, cluck, cluck, Greeble

[shaunmckinnon]

no, not a turkey sound, but the wonderful effect that gives that robotic or space age look to everything. Anyone know how to achieve this in Carrara? or if perhaps someone has cracked out a formula for us? or even a plugin???? not dire need, just curious.

[Grendel]

There is a tutorial on this very subject in 3dxtract magazine.

[shaunmckinnon]

really? where would i find that??? i think i lost my download of the magazines.

[ronjurman]

Check, perhaps:

http://forums.polyloop.net/software-...available.html

rj

[bwtr]

In the 29 page "Supplement 05" Issue.

[shaunmckinnon]

thank you so much guys.

[Frenchy Pilou]

Look this thread

[bwtr]

That movie is great but the work flow in say Photoshop and Carrara seems miles simpler. The attachments show. 1. A simple jpeg painting.
2. That jpeg added to the Carrara displacement tag, for a spherical mapping, at default settings.

[bwtr]

And adding some EnhanceC shaders!

[bwtr]

More greebling/EnhanceC on a plane. (Same jpg)

[shaunmckinnon]

it's strange. i get a lot of artifacts from my map no matter how high i subdivide. there's no feathering or antialiasing on the map so i'm not sure what's causing the problem.
Any suggestions of what settings are optimum for hard edges in carrara displacement?

[chrisd]

Hi Shaun,

Did you try triangulating (tesellating) your model in the VM to see if there is a difference? Quads can be warped after displacement, so converting to triangles (and reapplying smooth shading angle if needed) can fix some shading issues. I don't recall what the angle should be for Carrara, though 90 degrees is the division between hard (<90) and soft (>90) in some other apps.

Here's something I just came across, and though it does not use Carrara, I think the technique can carry over to some extent.
http://www.monsoonsky.com/CurvyTech.htm

Chris

[bwtr]

Shaun.
Why any subdividing necessary?
I just used the default Assembly room sphere.
In the displacement tag, other than ticking the display boxes, all the displasement settings are default.
When painting the jpg, I just used a square, hard edge brush.
In total the whole workings are as simple as one can get and seem far less complex to do that in the movies app.

[bwtr]

I have been doing some more exercises and I see the problem I think. Well certainly in Photoshop maybe. Some of the brushes do not seem to have good clean edges? Will look at this one.

[bwtr]

Is this a "Greeble"? It's making use of Basic Objects, Advanced Objects and I think a freebe not so long ago--Special Primitives.

(Still can not solve the edge artifact problems even using Illustrator.--will keep trying)

[bwtr]

Looking at some of the freebe greebles (nurnies) that are around it would seem that how they are made is not important?

[chrisd]

hi bwtr,

Do you prefer Enhance-C to Veloute2? (The metal plating samples are pretty cool.)

I've got Veloute2 and am wondering how much more useful Enhance-C would be.

Chris

[shaunmckinnon]

Thanks chris. i think i get the idea now. that's great. i really appreciate your help and yours too bwtr. when i get a few greebles done i'll upload the finished products.

[shaunmckinnon]

ugh. still with the triangulation of the polygons, and the highest polygon count my system can handle, i still get nasty edge artifacts. i think i've deduced it's my application that's causing it. reason being that when i lower the polygon counts i get better effects. weird eh? here's my posted picture of my ultra high poly count.

[shaunmckinnon]

ok, here's a few pics: the first set are with smoothing at 90 degrees, and with a 30000 - 500000 polygon count. the last image or the smoothest image is with a 30000 polygon count, smoothing at 1 degree, smooth subdivision turned off, and adaptive set to only 1. seem to give the hardest edges with no artifacts.