The attributes of the RealFlow particles (like velocity, density, etc.) can be accessed in the surface node editor with the "RF Particle Node" plugin. Using the plugin requires the following steps:
- Import the RealFlow particles as "Partigons" with the "RF Particle Importer" plugin
- Press F5 to open the "Surface Editor" and select the "Partigons surface"
- Press the "Edit Nodes" button to open the "Node Editor"
- Select Additional > RF ParticleInfo from the "Add Node" menu.
How to add the "RF ParticleInfo node".
The node can output most of the attributes of each RealFlow particle in the frame. During the render, the raytracer provides only the intersection point of a ray and the surface thus a particle can be identified after its position. The first particle’s attributes will be output by the node which position is inside the "Epsilon" range of the surface intersection point. If the "Epsilon" value is too high or too low the node can provide invalid attributes.