With this option it is possible to activate export functionality for Hybrido's secondary elements, e.g. splashes. These nodes behave like traditional particle emitters, and they can interact with other emitters, daemons and objects in the same way. RealFlow supports these file/export formats:
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By default, all data are stored under the “particles” folder of your currently opened project. If you need separated locations for the individual formats or emitters, feel free to change paths with the "Path" option. The BIN format should always be activated, since this is the only format that is entirely supported. If your 3D program already supports the Alembic format, we recommend this option as well.
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Particles cache (.rpc)
RPC is another RealFlow-specific format, but fully documented and supported by the various exchange plugins. It stores the Hybrido fluid's particle data and can replace BIN files. You can choose which data channels you want to export by expanding the node's resources branch. When the "mask" channel is active you will be able to separate the particles from the “Splash & Foam” and “Bubbles” emitters in a post-process using “Graphs” or Python. Please check out this page for more information.
Particle cache (.bin)
This is RealFlow’s most common particle file format. It contains all relevant position and physical data, such as density or pressure. BIN files can be read by any plug-in available for 3D programs and they are accessible via Python scripting for storing customized particle files. BIN files can be cached by RealFlow to enable simulation data playback via the "Timeline" and they can store huge amounts of data – file sizes of 100 MB, 200 MB or even more are quite normal. This, of course, makes it impossible to play back cached simulations in real-time and you should consider using the “Movie Player” to create previews. BIN files are fully supported by RealFlow’s import and export filters and all available plugins including the RealFlow RenderKit (RFRK).
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The Alembic format is relatively new, but quickly found its way into the most common 3D platforms. One of the most important advantages is that Alembic is a hierarchical format. This means that the original structure of the source objects will be preserved, e.g. groups, links, connections etc. The Alembic format is also available for all major operating systems and does not require any extra plug-ins or exchange tools to load and process the data. RealFlow's Alembic particle files support all relevant magnitudes and properties: simply expand the Alembic tree and make your selection. RealFlow's implementation of the Alembic format supports 10 different compression levels from 0 to 9. A higher value indicates a stronger compression. As usual, the compression requires some time and so the saving process becomes slower, but it is more resource-friendly. You can also choose which particle channels you want to export. When the "mask" channel is active you will be able to separate the particles from the “Splash & Foam” and “Bubbles” emitters in a post-process using “Graphs” or Python. Please check out this page for more information.
Arnold Scene Source (.ass)
-->>This is the scene description format of Solid Angel's Arnold render engine. You can export simulation data to native ASS files for direct use inside Arnold.
Particle proxy (.pxy)
Proxy formats are perfectly suited to saving large amounts of particle data, but not all of the information is stored on these files. Only a particle’s ID, position and velocity are considered. Depending on the adjusted quality level, particles are left out during storage. There are five quality levels (best – draft) to choose from. They can be seen/adjusted with a double-click on the “Best” option (to the right) to the export resource's name. The PXY format is only internally supported by RealFlow.
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If you are simulating foam from a texture this file is needed: it makes sure that you can resume your simulation.
Foam texture (*)
The “Foam” emitter allows you to calculate maps from the particles. When the foam map feature is enabled please do not forget to activate this resource, because otherwise the maps will not be saved. You can choose from various image file formats with a double-click on the “tif” entry in the “Options” column.
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