Itoo Software Forum

RailClone => RailClone Pro (*) => Topic started by: NHimages on June 30, 2022, 12:32:29 PM

Title: RC Cylinder alignement problem
Post by: NHimages on June 30, 2022, 12:32:29 PM

Hi there,

I'm trying to fullfill a surface with a cylinder with a random radius (or 3 different radius for example)

I linked my .max file where I tested something, but didn't work.

Can someone explain me how to achieve this effect ?
Here is what I would like to do, each cylinder takes the empty place :
(https://i.ibb.co/TYpHqsT/pb-RC.jpg) (https://ibb.co/k5kh6ty)

I also tried with Forest and the collision part but didn't worked as expected.

Thanks

Title: Re: RC Cylinder alignement problem
Post by: Paul Roberts on June 30, 2022, 02:01:26 PM

Hi,

Neither Forest Pack or RailClone have a circle packing algorithm which is what you'd require to do this really well, however you might be able to get close enough in Forest Pack. I've attached a sample file to illustrate a possible approach.

- In this file I'm using just one cylinder with randomised scale.
- Collisions are enabled and left at their defaults. Preview in Viewport is enabled to see the results.
- Scale is randomised, but I've edited the probability to reduce the number of large cylinders which otherwise tend to dominate.
(https://i.imgur.com/MfOQKY3.png)
- Distribution map is set to solid. You can play with the size of the map to get the desired results.
(https://i.imgur.com/HiWroeU.png)

I hope that helps.

Paul

Title: Re: RC Cylinder alignement problem
Post by: NHimages on June 30, 2022, 02:27:48 PM

Thnaks Paul,

I'll check this. I'm afraid it's not enough to solve my problem because if there i too much space between the circles it will give the impression that they can fall (it would be like stumps circle cuts on a wall) but I'll try to play with the parameters to find a solution, thanks !

Title: Re: RC Cylinder alignement problem
Post by: Paul Roberts on June 30, 2022, 02:36:20 PM

I see, I doubt you will get this effect quite right with Forest Pack because as I say it doesn't really have a packing algorithm. Maybe this circle packing MCG could help? http://www.scriptspot.com/3ds-max/mcg/mcg-circle-packing

Best,
Paul

Title: Re: RC Cylinder alignement problem
Post by: Paul Roberts on June 30, 2022, 04:20:29 PM

Attached is a RC style that can place a scaled segment onto the circles produced by that packing script.

Best,
Paul

Title: Re: RC Cylinder alignement problem
Post by: NHimages on July 01, 2022, 09:38:49 AM

Thanks Paul,

I might resolve my problem with this script for this time.

Maybe it could be an improvment for the next RC versions, to have the possibility to check collisions and/or neighbors parameters ? Like a smarter-padding fonction :)

Regards,
Hervé