topic Re: Place objects with random scale and rotation in Libraries & objects

Place objects with random scale and rotation

JohnJay — Wed, 16 Jul 2025 14:07:01 GMT

Is there a quick and easy way to place - say - a tree and with each click define a random rotation and scale, within given parameters (e.g. random rotation 0 - 360 degrees, scale +/- 30%)?

Re: Place objects with random scale and rotation

Podolsky — Fri, 16 Jul 2021 19:08:53 GMT

You can choose random rotation in multiply command dialogue, but I'm not sure you can randomise scale.

Re: Place objects with random scale and rotation

JohnJay — Mon, 19 Jul 2021 09:22:59 GMT

Have tried that option before but it's not very useful (to me).

A couple of ideal solutions would be:

Quickly define specific parameters - something like in ZBrush, where you click to define the position, then drag to define size, then drag again to define rotation

Random - activate a 'Random' mode (similar to activating a Relative Construction Method) and specify deviation parameters for Rotation, Scale and Translation

Re: Place objects with random scale and rotation

Anonymous — Mon, 19 Jul 2021 11:49:33 GMT

JohnJay wrote:
Is there a quick and easy way to place - say - a tree and with each click define a random rotation and scale, within given parameters (e.g. random rotation 0 - 360 degrees, scale +/- 30%)?

I gave PARAM-O a try and it looks like it is doing the trick.
Open the gsm file inside PARAM-O and change it to your desired Tree object.
Hope that helps.

Re: Place objects with random scale and rotation

Erwin Edel — Mon, 19 Jul 2021 12:42:29 GMT

We use the library shown in this video:

There is a download link to google drive in the description.

It allows different methods of random distribution or scatter.

Re: Place objects with random scale and rotation

vdentello — Mon, 19 Jul 2021 13:21:59 GMT

Erwin wrote:
We use the library shown in this video:

There is a download link to google drive in the description.

It allows different methods of random distribution or scatter.

This looks a lot like C4D cloner object. I loved it, i don't see why there's no standard tool that behaves live that.

Re: Place objects with random scale and rotation

JohnJay — Tue, 20 Jul 2021 12:31:32 GMT

Braza wrote:
I gave PARAM-O a try and it looks like it is doing the trick.
Open the gsm file inside PARAM-O and change it to your desired Tree object.
Hope that helps.

Random Tree.zip

Thanks I'll try this

Re: Place objects with random scale and rotation

JohnJay — Tue, 20 Jul 2021 13:22:55 GMT

Erwin wrote:
We use the library shown in this video:

There is a download link to google drive in the description.

It allows different methods of random distribution or scatter.

Thanks this looks fantastic

Are there any other gems like this that I should be aware of?

The presets are great too...

I wonder how many of these plants and trees can be added before AC starts to bog down?

Re: Place objects with random scale and rotation

Erwin Edel — Tue, 20 Jul 2021 13:39:01 GMT

AC handles it quite fine, but render times increase a lot if you place many trees. We tend to use them for a bit more minimalist look (see attached below).

For trees there are also archiradar libraries that create random trees every time you place one, as I recall.

Those are not free, but the price is very fair and I think you can get free updates.

Re: Place objects with random scale and rotation

JohnJay — Tue, 20 Jul 2021 14:08:52 GMT

Erwin wrote:
AC handles it quite fine, but render times increase a lot if you place many trees. We tend to use them for a bit more minimalist look (see attached below).

For trees there are also archiradar libraries that create random trees every time you place one, as I recall.

Those are not free, but the price is very fair and I think you can get free updates.

They look great for this type of work.

Thanks again and will check out Archiradar.