You'll find the first part of this tut, Pages 1-10 right here.

cheers,
dr geep
;=]

Yay! First in again. :D

:-)

"What's a tetra?"

Hmmm - tricky.

I wonder if there's a clue in the number of steps taken to get one?...

Cheeeers,
Diolma

PS: A terahedron is NOT a pyramid, and don't let anyone tell you otherwise!

PPS: - took doc's advice, this post moved from the preceding thread, where it was no longer relevant (and will delete my gloooom post there also).

PPPS: Anyone care to define the difference between a tetrahedron and a pyramid? I could (reasonably easily, but I've been showing off far too much recently, so I'll let someone else shine..). No prizes tho..;-))

Cheers,
Diolma

Message edited on: 02/17/2006 14:35

.

BkMrrrrq

What, no prizes? ............. Then, forget it! ;=[

yup

Okey-dokey: I'll reveal the difference between a "tetrahedron" and a "pyramid" Tomorrow. At the earliest:-)) Cheers, Diolma

Oh, I can't wait .......... can I have 3 or 4 guesses? ;=]

Hi doc, snuck in the back of the classroom late (:

tetrahedron - any polyhedron having four plane faces pyramid - a polyhedron having a polygonal base and triangular sides with a common vertex OR pyramid Pronunciation (pr-md) n. 1. a. A solid figure with a polygonal base and triangular faces that meet at a common point. b. Something shaped like this polyhedron. 2. a. A massive monument of ancient Egypt having a rectangular base and four triangular faces culminating in a single apex, built over or around a crypt or tomb. b. Any of various similar constructions, especially a four-sided Mesoamerican temple having stepped sides and a flat top surmounted by chambers. 3. The transactions involved in pyramiding stock. 4. Anatomy A structure or part suggestive of a pyramid in shape. tetrahedron Pronunciation (ttr-hdrn) n. pl. tetrahedrons or tetrahedra (-dr) A polyhedron with four faces.

Tetra - a group of four. In the above case, for tetrahedrons. ;P

tetra = four
hedron = face

*** POP QUIZ ***

1. How many tetrahedrons are contained in Poser's "tetra?"

2. How may polygons (total) are in Poser's "tetra?"

3. How many "pyramidal" type structures are contained in Poser's "tetra?"

cheers,
dr geep
;=]

*** POP QUIZ #2 ***

How can you make a true pyramid in Poser?

(hint - you need to use a little bit of Doc's "magic")

cheers,
dr geep
;=]

*** POP QUIZ #3 ***

What would happen if PeeDee met NaySayGuy?

cheers, (?)
dr geep
;=|

Yikes I'm late!

... Sneek ...

Pop Quiz #1 answers.... 1) 12 2) (assuming one trianguylar polygon per face) 48 3) 17 Pop quiz #2 answer... Seem to remember you covering this in an ealrier tutorial, though I cant' quite place my finger on it at the moment... seem to remember it had something to do with writing your own obj file, giving it the vertice order - but I could be wrong... Pop quiz #3 answer... Is this a matter/anti-matter kind of question? Or are we looking at genetic compatibility issues here? :) jonthecelt

Ok, I gotta re-evaluate my answers to Pop Quiz 1 now, having looked properly at the tetra... :) 1) 84 individual tetrahedra... which means... 2) 336 polygons (assuming one triagular poly per face)... and... 3) if you're including those made up of multiple tetrahedra, then I'd have to say... 105? jonthecelt

I stand corrected. A tetrahedron CAN be a pyramid. And all these years I thought that a pyramid HAD to have a square base. It doesn't have to. Oh, well, you live and learn.. Cheers, Diolma

Markin' de' Book..... ;)

hmmm... just got an email saying... "Hello Jon, This automated message is to let you know that geep has posted a reply to your message on the Renderosity.com Poser Forum. You can click the link below to read their response: Subject: +++ DG#205 +++ Poser's Other Props (cont'd) +++ Page 20 ... http://www.renderosity.com/messages.ez?Form.ShowMessage=2587560 Regards, Renderosity Staff" So I get here... no page 20 yet... any ideas what's going on? jonthecelt

"Hello Jon,

This automated message is to let you know that geep has screwed up again and had to delete his screwed-up reply to your message on the Renderosity.com Poser Forum.

You can't click the link below to read their screwed-up response because the big jerk deleted it.

Subject: +++ DG#205 +++ Poser's Other Props (cont'd) +++ Page 20 ...

No Regards, (tis time)

Better luck next time ....... ;=]

mwhaha

Attached Link: http://en.wikipedia.org/wiki/Sierpinski_triangle

"The tetrix is the three-dimensional analog of the Sierpinski triangle." As it gets more complex (you're up to a frequecy of 4) the surface approaches infinity, as the volume approaches 0.

http://en.wikipedia.org/wiki/Sierpinski_triangle

As Bucky Fuller (RIP these 20 years!) would have called it; "Our good friend the tetrahedron" is the basis of his Synergetic geometry.

http://www.netaxs.com/people/cjf/fuller-faq-2.html

"The minimal system with the fewest possible points is a tetrahedron -- four points make a primitive volume with an inside and an outside. The canonical tetrahedron has a volume of one."

Message edited on: 02/20/2006 04:06

Hi Folks, If you're not bored yet, you can tune into Page 21 right here. cheers, dr geep ;=]