Procedural Topo Pack

[iamVFX]

Could you please point out how you do that? I'm a beginner with ICE and already stumbled across this problem.
I'd like to write to the MaterialID attribute using fixed array indices.

Thanks for sharing!!

My pleasure! How exactly is your array looks?

[Eugen]

Quite simple. The point is, I want to set the MaterialIDs per polygon "manually", via an array.
You would do this based on some conditions, normally.

[iamVFX]

Which polygons should have material 1, 2 and 3? If they're based on conditions, it means that you have per polygon booleans, correct? With something like clusters it would look like so:

[Eugen]

Thanks, but basically what I want to know is how arrays and sets correlate.
How to I build up an array and put those indices into a, say, polygon set? That's an academic question meant to help me understand how ICE works.

Let's say I have a simple 2x2 grid - 4 polygons. As an example, I'd like to set them like so (to exclude any "rules", thus if-nodes, in the correlation):
Poly MatID
0 3
1 2
2 0
3 1

How would you go about that?

[iamVFX]

Thanks, but basically what I want to know is how arrays and sets correlate.
How to I build up an array and put those indices into a, say, polygon set? That's an academic question meant to help me understand how ICE works.

Let's say I have a simple 2x2 grid - 4 polygons. As an example, I'd like to set them like so (to exclude any "rules", thus if-nodes, in the correlation):
Poly MatID
0 3
1 2
2 0
3 1

How would you go about that?

Pretty straightforward In this case, array size matches polygon count (polygon set size), if you put a set of indices into the Index port of the Select in Array node, it will select the value of the array by the index of the polygon



Array to Vertex/Edge/Polygon Set compounds were designed for the array of some indices (i.e. when the size and index order does not match the set size) which you would want to convert to a set

[Eugen]

Ha! "Select in Array" is the thing... makes sense.
Somewhat steep learning curve here...

Thanks a lot, iamVXF!!

[iamVFX]

Thanks a lot, iamVXF!!

My nick is so lazy, gosh

[Draise]

The download link is broken?

[Hirazi Blue]

If you search for "Procedural Topo Pack" over at rray.de, you should find it in the "local backup" still... ;)

[Bullit]

If you can't find there i have it somewhere.