Initiators Iterator creating grid 2D to cube 3D of particles Part A

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Published on May 15, 2010 4:09:19 AM ● Video Link: https://www.youtube.com/watch?v=ZkCsayferP8

Duration: 5:11

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11

ThinkingParticles foundational tutorial by Joe Scarr.
Pls remember to click Subscribe before you go so you can always come back.

These tutorials continue to be very useful to trainees and users of TP 6.

The TP Iterator is a very powerful initiator - e.g. creating a foreloop in programming, generating a number of values for a number of results on one time step.. such as generating numbers 1 to 9 (set as 0 - 10) since Iterator is zero-based. This can be used to generate a series of particles in a line.

Definition of Iterator:
In computer programming, an iterator is an object that enables a programmer to traverse a container, particularly lists.

- pull out helper Point 3
- multiply x-y-z by 5
- feed into positionBorn
- borne one particle per call : Pistol Shot '1' per call
- Iterator num o/p feed into 'x' value

Now did u click Subscribe?

- results 1: X 5 generating 10 vectors
- feed position vectors to positionBorn
- so for each Point3 that positionBorn receives, it will borne out 1 particle per call
- speed 0 ; lifespan 99 (under pB)
- pull out Time Interval : for this showcase, we will activate just once.

Let's make it more deeper by iterating upon iterations:
- so now instead of the afore example vectors out of X value, we will start generating out of Y value
- Remember initiators do not operate in parallel so avoid just duplicating the first Iterator
- But you can duplicate and feed by using the first Iterator to drive the second Iterator
- so now besides the first creation of particles along X value, it will also generate ten more along the Y
- you will see a whole GRID coming into existence
- Now do a 3rd Iterator and drive-feed from 2nd Iterator to the 3rd and feed Point3 to the 3rd Iterator for the Z value
- With this a 3D grid CUBE will take form

Iterating the Iterator:
- What is Number Normalize
- That is scalar value from 0 to 1
- What is Width of Iterator? That is o/p same value every time
- Check pB : Size - feed pB Size to Iterator #1 Width: use write to deBug log - see width set at constant 0.1 in deBug window- tell us amount of change artist is doing per count
- Increase Iterator value of Count to 13 and you will see deBug logs gradually catches up as well to width of 0.769...
- this deBug log helps in determines values for averaging width of particles

See next Iterator Part B video on how to create particles memorizing other particles and iterating to those memory particles.

Enjoy and thanks for watching!

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