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Overview ¶
This tool continuously generates fluid from the points of an object and is
similar to Source from Surface and
Source from Volumes. When sourcing into a pyro or smoke
simulation, a
Pyro Source SOP is created to add the
necessary point attributes to the input geometry, which are then converted into
VDB’s by a
Volume Rasterize Attributes
node. Note that a volumetric object is required for sourcing a liquid
simulation; as such, this shelf tool will behave the same way as
Source from Surface when applied to a FLIP simulation.
The tool will create a setup tailored towards the simulation it is applied to.
In case of a smoke simulation, it will import density
and temperature
,
causing smoke to rise from the selected object. If applied to a pyro
simulation, the shelf tool will inject fuel
and temperature
, turning the
surface into a flame source. Finally, the tool will add the necessary nodes
to continuously emit liquid into a FLIP simulation, similar to
Emit Particle Fluid.
Tip
If you want the sourced smoke to inherit the object’s motion, you can use
the Point Velocity SOP to calculate its velocity.
The velocity attribute will then be transferred to the scattered points by
the
Pyro Source node and converted into a VDB by the
Volume Rasterize Attributes SOP.
Using Source from Points ¶
-
Create an open geometry object within a container.
For more information on containers see:
Smoke Container or
Pyro Container.
-
Select the geometry object to generate the source.
-
Click the
Source from Points tool on the Populate Containers tab.
-
Select the container to put the source into and press Enter to confirm your selection.
Note
To turn off the continuous flow of fluid, set the Activation to 0
on
the Volume Source node in your DOP network. You can
keyframe this parameter to control when the fluid is
emitted.
Note
If the object is only partially in the container, only the portion of the object that is within the container’s boundaries will be simulated.
See also |