Cineversity

Hello!
I need to make a flat Icosahedron setup (see attachment), but it should preferably be a very easy one as I am not yet sure of the with/height and resolution.
With easy, I mean something that is easy to try out and update. After watching Ricks tutorial with the formula effector (http://www.cineversity.com/vidplaytut/brick_wall) I know how to do it with several cloner systems, but if it is possible I would love to do it with only 1 cloner system, so that if I update the amount and size of my triangles f.ex. I only need to update it once.
Is it possible to use the Cloner/Grid Array with a Formula effector that would offset+rotate all the triangles correctly?
Or do you think there is another way that would be better?

I am going to use this setup with a black and white video in the shader effector that turns on/off the clones visibility. Basically a triangulated LED screen.

Hi Racecar, Hi Franck,

I have set up the simplest scene I can think of and the easiest to adjust. Have a look into the file.

The key is to have a certain set up of the Cloner. If you set these numbers into XPresso with a User Data slider, I would set the increments of that slider to two, to keep the systematic in it. (Odd numbers in X, in the screen shot 19—so 21, 23, 25 etc.)

I used Black and White here for demo-purposes, delete the material and set up the ones you like of course.

All the best

Sassi

P.S.: You like to adjust width/hight as well as amount in X/Y?

Check out the file :o) The User Data is available after a single click on the XPresso Tag.

https://www.amazon.com/clouddrive/share?s=WraCmHEoThwohui-NWwS14

I have assumed that the size/amount adjustment is for preparation, not for animation purposes, will say: once it is set up it stays. If that is not the case I have to add more nodes to the XPresso ;o)

(The amount/number works in step of two only, otherwise the pattern would be destroyed. The Module function is therefore introduced inside of the XPresso.)

THAT’S A SUPA AWSOME SETUP!
Wow!!! Now I have to dissect it totally to completely understand how you rigged it. That’s the fun part!
But you are right, this must be the simplest possible way to try out different resolutions on the fly.
For this rig, there is no need to animate the values, that’s the job of the texture inside the shader effector that will control the visibility of the clones

I need to look into this Modulo logic. I haven’t really seen the need to understand it until now.

Also, I have to agree with what somebody else said in another thread…
YOU ARE SUPA AWSOME!

Thanks a million

You’re very welcome! Thank you so much for the great feedback! :o)

The Module Logic is simple. Modulo means here that the incoming value is divided by the second value, the reminder is provided as result.

For this set up we need for the “width” an uneven number. Even numbers will not lead to the wanted pattern.

The use in this set up is like a test. A integer number (no decimals) divided by two can have only “zero” or “one” as a reminder.
If it is dividable by “two”, the result is zero, and the following test “Is Null” gives a “one” (True) as result then. This “one” is then subtracted from the input. So we get always an odd or un-even number.

The User Data allows for steps in “two”, but it doesn’t take the “start” value for that. I could have done it this way and subtract just a “one” from it, but the constant wrong number (always even) in the parameter field is not my taste. (However, it would work.

There is a little bit more stuff in the XPresso, to get the numbers multiplied with the dimension. The X dimension of the triangles needs only half of its size for the next one to be placed, I had to half it and subtract “one” from it. (similar to a plane: Segments+1=Vertices or points). This was simpler in Y. Just subtract one dimension from the overall result, to get the Y value for the cloner.

As we are in a forum I like to give enough details for a wide variety of artists.

All the best

Sassi