Is There A Way To Get Radnom Rotation Animation For Emited Particles With Instanced Geomarty On It?

[happycow]

Hi, Is there a way to get radnom rotation animation for emited particles with instanced geomarty on it? For example, suppose I want to make a stream or red blood cells, and I want them to have there own uniqure roations and speeds, and I also want each cell to roate as they move down stream,,,is this possible? Is it also possible to give random scales to each particle?

[thnkr]

Yes. It's much easier with nParticles, but let's assume you don't have those;

to get a random size, create a float PP attribute, for example instScale and write a creation expression like

particleShape1.instScalePP = rand (0.1, 2.0);

Under the instancer section in the Attribute Editor, set the Scale to instScalePP.

To get random rotations, you would probably not want to have completely random rotations (that would look a bit funny, so don't use rand, use noise instead.

First create a new vector PP attribute and then create a runtime expression like

particleShape1.instRotatePP = <>;

then set the rotation to instRotatePP.