The Bifrost aero emitterProps attributes control the emission from mesh objects that share this property. See Work with Bifröst emitters.
Container Attributes
- Enable
- Enables evaluation of the entire container node.
- Evaluation Type
- Controls how the node is evaluated. Normally, this should not be changed.
- Simulation
- The node gets evaluated based on the previous frame.
- Property
- The node is used only to set values used by other nodes.
- Mesh Property
- The node is used to set values on polygon mesh objects, such as emitters, colliders, accelerators, and other meshes used in a simulation.
- Per Frame
- The node is evaluated every frame, but does not depend on the previous frame. This mode can be used for animation or reading cache files.
Properties
- Enable
- Enables emission from the associated emitters.
- Continuous Emission
- Refills emitter voxels that become empty with more particles. Keep this on for effects like smoke from a burning fire, or turn it off for a single puff of smoke.
Conversion
Controls how the object's volume is voxelized.
- Mode
- Controls how the object is voxelized:
- Solid creates a solid volume including the mesh interior. The mesh should be both manifold and watertight.
- Shell create a thin shell around the mesh surface. In this mode, Thickness should typically be 1.0 or more.
-
Solid (Robust) is an alternative to Solid that usually gives better results for volumes with fine detail, openings leading to cavities, or non-watertight surfaces. However, it does not handle fluids inside completely enclosed regions.
- Coarsen Interior
-
Saves memory by performing additional coarsening of the voxels inside the volume when Mode is Solid (Robust), especially with self-intersecting meshes.
- Offset Surface Distance
-
The distance in voxel widths used to close (dilate and then erode) the solid voxels when Mode is Solid (Robust). The internal minimum is 1.0 so only values greater than that have an effect. High values can create artifacts.
- Thickness
- The amount, in voxel widths, to thicken the volume. For solid volumes that are already quite thick, you can use 0.0 for the exact mesh boundary or even negative values to shrink the volume along its surface normals. For thinner volumes and shells, you should use larger values to prevent holes.
- Voxel Scale
-
Scaling factor for the Master Voxel Size used to initially voxelize meshes that share this property. See Control the voxel resolution of a Bifröst simulation.
Physical Attributes
- Density
- The mass per volume of the emitted gas in kg/(scene unit)3.
- Temperature
- The temperature of the emitted gas in degrees Celsius (°C).
Stickiness
- Strength
- The amount that the fluid from this emitter adheres to nearby colliders.
- Bandwidth
- How close the fluid from this emitter needs to be to a collider for the stickiness to affect it, in world-space units.
UV Projection
Defines UV coordinates that get advected with the particles. Select a Projection, and then click Tool to activate a manipulator to adjust the projection.