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What is this?
Read 3996 times
* March 29, 2010, 08:51:28 PM
Whatever it is, it illustrates a couple of different kinds of Patterns -- a feature new in v17. The bead chain is an "On Curve" Pattern comprising 123 spheres; each of the two walls was made from an "Array" Pattern with 100 hexagonal tiles.

A Pattern behaves as a single 3D object, which can be assigned a material and which can take part in Boolean operations. Each of the two tile arrays in this drawing, for example, was given a "Wrapped filtered image" Pattern (the Material Editor kind of "Pattern"). The image I used is a blurry random-looking thing, and since it was applied to the array as a whole, the result is that each hexagonal tile looks similar to but not quite identical to its neighbors. The grout was made as a separate object, a thin 3D Box with its own material. I placed it beneath the tile array, separated from it by .001", and Boolean-added it to the array. Since the two Boolean operands didn't touch, each retained its own material in the resulting single object.

A disappointing limitation of the "On Curve" Pattern tool is that it does require a curve as the "pattern base." A Polyline won't do. That's not a problem if the pattern base is 2D, since you can convert a Polyline to a Curve which works nicely as a pattern base. Couldn't do that with my bead chain, though, because converting a 3D Polyline to a Curve flattens it into two dimensions. I had to trace the thing with a 3D Spline.

Drawing is illuminated with one Headlight, one Ambient light, one Point light, and one Environment light (in the Render scene luminance). Despite the large number of individual pieces in the model, it renders in 1m 12s using Raytrace Full.

Henry H
« Last Edit: March 29, 2010, 08:59:17 PM by Henry Hubich »

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March 29, 2010, 09:35:59 PM
#1
It's the Henry2010-Whatchamagigger! :D What a great demonstration of the new pattern tools. Your tile and grout look incredible. It's always a joy to see your work Henry.

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BradE [ dean3Design ]
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March 30, 2010, 06:11:44 AM
#2
Hey, how can I order a Whatchamagigger? I need one for my tooh brush. Nice work Henry

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March 30, 2010, 07:44:18 AM
#3
Nice example of a good description Henry. Looks like a powerful tool ...

Majo

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March 30, 2010, 07:58:41 AM
#4
Very nice job on that Henry.

Jack Genie in the Box?


March 30, 2010, 09:37:09 AM
#5
Impressive work.

Are the 123 spheres automatically fitted to the length of the curve?  Are the hemispherical depressions in the pulleys exactly complementary to the spheres, or did you have to calculate radially-copied spheres that were then subtracted?

Jeff

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* March 30, 2010, 09:37:10 AM
#6
Thanks Henry for sharing this great example, and detailing the many use cases.

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* March 30, 2010, 10:13:36 AM
#7
Are the 123 spheres automatically fitted to the length of the curve? 

Yup. Works beautifully, too.

Are the hemispherical depressions in the pulleys exactly complementary to the spheres, or did you have to calculate radially-copied spheres that were then subtracted?


I calculated radially-copied spheres that were then subtracted from the pulleys -- therefore they are exactly complementary to the spheres in the chain ;-)

Henry H

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March 30, 2010, 12:33:26 PM
#8
All you need is a set of dentures hanging there, and then it will really be an exceptionally weird image.  ;)

Awesome invention.  The toothbrush thing-a-ma-whatzit.  I love it.

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Josh T.
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* March 30, 2010, 04:30:04 PM
#9
A hand-cranked toothbrush twirler, Uncle Rube would be proud.

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* March 30, 2010, 05:03:51 PM
#10
Thanks for the demo Henry I can see how this feature could be very useful for bricks where you don't want an exactly repetitive pattern. However That touth brush machine of yours is going to give me nightmares ;)