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Archive for the ‘Python’ Category

Octree Towers

Sunday, January 31st, 2010

I found a sneaky bug in my overhang-detection code which was preventing altitude. Here are 10,000 blocks of altitude.



Saturday, January 30th, 2010

Mold-style growth, from the edges.

City of Ten Thousand Objects

Tuesday, January 26th, 2010

Count ’em, 10000.

With the octree this only took an hour to generate.

Update: Okay, so I counted, and there are only 9,999. My bad.

Bear of Cubes

Sunday, January 24th, 2010

It’s about time somebody made a bear out of cubes.

Not much of a bear, really. It can’t be blamed for that, but I can.

The Cube of all Cubes

Saturday, January 23rd, 2010

Here are 2500 cubes all smushed into another cube without overlapping, which I accomplished by means of a cleverly-arranged series of object-oriented whistles and knobs in just over two of your Earth minutes.


Octree Test

Saturday, January 9th, 2010

Chart showing octree superiority

That’s mathematics, son. You can argue with me, but you can’t argue with figures.

Commentary and code follows.

Expanding Octree

Wednesday, January 6th, 2010

Another visualization of an octree expanding to encompass an increasingly wide-spread array of points, coded in Python for Maya using Pymel.

Live Octree

Wednesday, January 6th, 2010

Normally octrees start large and subdivide. This is fine for static scenes, or scenes in which the boundaries are known, or scenes managed by reasonable people.

Being perverse, I decided to make an octree that could adapt to its circumstances, and grow extra layers if necessary to accommodate objects beyond its limits.

This, my friends, is what we are witnessing here today. The first live, growing octree ever captured on film. By me.

As locators generate, this octree subdivides to keep any node from holding more than 10 at once. If a locator generates outside of the octree, the tree grows super-nodes until the point is contained.

Random Octree

Tuesday, January 5th, 2010

As my cubitecture expands, brute-force collision detection becomes ever more ridiculous. Above is a test visualization of an octree space-partitioning scheme, which I’ll modify for use in my block-placement code.

Code follows:


Tuesday, January 5th, 2010

2500 iterations, each one hand-polished and placed by skilled craftsmen in Singapore.

No overhangs, finally. I know *I’m* relieved.


Thursday, November 19th, 2009

Cubing the Cube

Tuesday, November 17th, 2009

A rotating cube made of other, smaller, more industrious cubes.

The code is shy, but I am grooming it for society. For now rest assured that it uses the allIntersections node, in a wrapper conveniently provided by CGTalk member octupe in this thread.

Long Glass Blocks

Monday, November 16th, 2009

One of my favorites so far. This has a particular sense of structural interrelationships I’ve been watching for — patterns like the two parallel longblocks repeated throughout, emerging from the combination of growth points and collision detection settings.

Cubing the Sphere

Sunday, November 15th, 2009

Scaling cubes based on their proximity to love.

Details and code follow:

Orderly Blocky Shrub

Thursday, November 12th, 2009

After some time away, I have returned to my shrubberies. This one is deceptively tidy, and very tightly packed. Really, it’s barely a shrub at all. More of a malignant ziggurat.

Code follows: