DOP Network POP - as Particle OPerator

Popular Terms:

• Advection - The transfer of heat or matter by the flow of a fluid, especially horizontally in the atmosphere or the sea.

Source:

Birth:

• Impulse Activation - Control the amount of particles generated when the node cooks. Not on every frame!
• Constant Activation - It tell Houdini to generate certain of amount of particles in a second of time.

Attributes:

• From here we can setup our Velocity. We can set velocity to be inherited or to be manually set. Usually, inherited v comes from SOP, Geometry level and from e.g. Trail node.

Stream:

Bindings:

General Tips:

• Use Substeps as a last resort for fixing the particle stepping
• If we need more than 3 Substeps, then usually issue is somwhere on the node stream.
• Stepping issues usually occur with fast moving geometry/simulation.
• With Substeping we usaully adding extra step between frames
• In Birth tab under Interpolate Source we can change settings to get better results.