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| UI Text Box | ||||
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Clicking the "..." button will open a menu with the following options:
Browse - Opens a dialog where you can select where the simulation caches will be written to. The filename you type in must contain # signs so each simulation frame will be written to a differently numbered file. Also, you can choose between two file formats - AUR and VDB cache files. In order to write the simulation caches to VDB in the default simulation path, you can just edit the Simulation Save Path to $(work_path).vdb. Delete Cache Files - Clears the cache files matching the provided Simulation Save Path pattern. Reset to Default - Resets the Simulation Save Path to default. Help - Opens this Help page. |
Cacheless Simulation | cacheless – Only the last simulated frame will remain in RAM and no caches will be written to the storage. This will speed up simulations which are bound by slow reading or writing to the hard disk or by compression and decompression of the grid or particle data. You can use this option when iterating on the simulation settings in order to speed up your iterations. It can also be combined with the Render On Each Sim Frame option under the Simulation rollout, or the Save Images During Simulation option of the GPU Preview, so you will get a ready image sequence if you leave the simulation unattended and then return to check it.
Storage Quality | storageQuality – The output grid and particle channels are compressed by default in order to increase the performance (faster cache loading) and to avoid excessive memory consumption. This parameter can range from 8 to 20 - 8 is the smallest size, while 20 is the best quality and is uncompressed. If this value is set too low, different artifacts may start appearing depending on the type of scene. For grid channels, artifacts shaped like horizontal slices may appear in preview and rendering, such as in the following image:
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