“Bitmap” gives you the opportunity to either load a single image or an entire image sequence used as an emission mask.
Emission mask
Open RealFlow’s file browser to choose a single image or a sequence from a folder and attach it to the emitter. If you want to use an image sequence, all the other images must be stored in the same folder, contain a five-digit file padding, and share the same extension. The emitter only uses the image's purely white parts for the emission – grey shades are not considered.
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Here the particles' initial speed is defined in metres per second. Higher values will generate more particles per frame. Faster particles act with stronger forces on other particles or objects. The number of emitted particles also depends on your → “Resolution” “Resolution” settings. A value of 0.0 disables 0 → stops the emission of particles. Please note that it is not possible to fill the emitter or create volumes. If you want to create a filled object, please use a "Cylinder" node and a "Fill Object" emitter.
V random
To avoid regular emission, it is possible to randomly displace the particles with these functions. The value should range between 0 and 1, but can be higher, as well. “V” stands for vertical.
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