En:TP Particle Groups
Aus CINEMA 4D Wiki
Inhaltsverzeichnis |
Management
Particlegroups are managed in the Thinking Particles Settings. Particle groups are ordered strictly hierarchical. The base for all groups is the group All (Alle in german). The user can rename groups and create own subgroups.
Every particlegroup can have it's own display settings, this makes it easy to distinguish them in the editor and to resolve errors in setups.
Applications
If you use particlegroups with a PPass or other nodes it's not only the assigned group that is used but all it's subgroups too.
Example:
- All
- My first group
- My first subgroup
- My second Group
- My first group
Gravity that is applied to "My first group" will affect all particles in "My first group" as well as those in "My first subgroup". The particles in "My second group" will not be influenced. This allows to restrict influences to specific particles.
There are three main uses for particlegroups
Separation of setups
Using groups you can create several completely independent TP setups in one scene
Complex setups with group changes
In a complexe setups it's more usefull to distinguish particles by sorting them into groups instead of conditions that need to be evaluated all the time. One use would be to put particles in a different group once they collide with an object, another option is to move particles that are used for spawning/fragmentation into a different group to prevent recursion.
Using separate particle geometries
You can assign particle groups to particle geometry objects.. This is especialy usefull if for example one group of particles shall be displayed using Pyrocluster. For this to work you have to create two (or more depending on setup) particle geometry objetcs and assign the different particle groups to them. Now assign the Pyrocluster material to the particle geometry object that refers to the group you want to use PC with.
Example scene
This scene uses four different particle groups to restrict PC effects to certain groups and to avoid recursion with spawning particles.
Media:Groups_example.c4d
