You can use any object with this emitter to fill it or create particles on its surface. Changes on position, rotation, or scale do not affect this emitter, because the creation of particles depends on the object you want to fill with particles. Objects meant to be filled require a → Volume" tag. For more information on filling objects please go to → "Filling Objects".
RealFlow Scene
In RealFlow | Cinema 4D it is possible to use multiple "Scene" trees in the same project:
- To link the emitter to a different scene tree dragging the appropriate "Scene" node to this field
- Furthermore you have direct access to the selected "Scene" tree's → "Solver", → "Cache", and → "Display" tabs. For descriptions of these parameters follow the links.
Linked
RealFlow | Cinema 4D supports interactions between different "Fluid" domains, e.g. for the creation of foam or water-and-oil simulations. To link the emitter to a "Fluid" node drag the "Fluid" node(s) to this field.
Emitter Type
Toggle the emitter type with this drop-down menu. The following parameters and the viewport representation will be updated according to your selection. Bear in mind that type changes will change the emitter's and fluid's behaviour completely.
Body
You can drag any closed object to this slot to fill it with particles, but only one node per emitter is allowed.
Jittering
By default, the emitter creates a regular particle distribution and this leads to patterns. “Jittering” adds random displacement to the particles. The allowed values range between 0.0 and 1.0 for maximum randomness.
Seed
In order to change the initial distribution of particles in conjunction with "Jittering" change this value. You can enter any positive number.
Fill Ratio X
This parameter is used to achieve partial filling. A value of 0.0 means that there are no particles in X direction, while 1.0 entirely uses the selected axis.
Fill Ratio Y
This parameter is used to achieve partial filling. A value of 0.0 means that there are no particles in Y direction, while 1.0 entirely uses the selected axis.
Fill Ratio Z
This parameter is used to achieve partial filling. A value of 0.0 means that there are no particles in Z direction, while 1.0 entirely uses the selected axis.
Fill mode
The effect of this option is based on an object's → "Volume Mode" settings. For more information on filling objects go to → "Filling Objects":
- With "Fill solid region" an object's inner area will be filled.
- "Fill non solid region" adds particles outside the volume.
Layers to remove
With this function it is possible to delete particle layers from the outside to the inside. This creates a gap between the object and the fluid.
Fill Volume
Activate this feature to fill the object with particles. Here are a few notes:
- As soon as a force is acting on the particles, e.g. “Gravity” the particles will start to collapse. This means that the original volume will not be maintained.
- You have to simulate for a certain time to let the fluid particles settle. Then, an → initial state can be created and the simulation is resumed from this state.
Layer
With “Fill volume” disabled the particles are spread over the object's surface. This feature does not create a particle stream. When the emitter's associated object carries a texture (see “Texture”) the particles will only be created in areas with texture values greater then 0.
Texture
With “Layer” turned on and a texture it is possible to create particles in certain areas on the object's surface:
- Particles are only created in areas with texture values (“Color”) greater than 0
- Texture tags and projection methods are not evaluated – the emitter uses UVWs only.
- Cinema 4D's built-in procedural shaders (e.g. noise) are supported.
- Please read → "Image Emitter" for detailed information.