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The particles' radius values can also be varied using channel data like velocity or age. With this function it is possible to decrease particle size over time, make faster particles bigger, and so on. The mode of operation depends on your 3D program: some applications use customizable curves to control size, others provide predefined functions.
[ Image: fluid
Particle simulation with different channels:
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velocity, neighbors, mass, normals.
It is also possible to scale the particles based on their distance to a camera. Finally, the channel- and distance-based size functions can be combined to achieve complex effects. Please bear in mind that these features will be applied to all of a “RealFlow RenderKit Particler” node's sequences. If you want to control your sequences individually you have to use separate “RealFlow RenderKit Particler” nodes.
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The “RealFlow RenderKit Particler” is often used to render foam or spray. To get a realistic look very large amounts of particles are required. The “MultiPoint” → “MultiPoint” option is perfectly suited to the creation of dense foam structures by adding new particles at render time:
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