In this tab, you can control what fields the solver will output and provide various settings to control the resolution and compression.
You can choose to output simulation fields as VDBs and/or a visualizer for the sparse data structure for debugging purposes.
You can choose what specific fields get output. Choosing fewer fields will improve the speed of the simulation. Typically only output density when trying to dial in settings, then re-enable the others when it’s time to cache out the final result.
This is also the place you would enable some features like color and rest.
You can choose to output at a lower resolution. Sometimes you may not need a full resolution temperature or velocity field for rendering. The filter will determine how to downsample a lower resolution grid. Index will skip voxels and write out values at intervals, average will average out a group of voxels to assign to a lower resolution grid.
The Mask Field will mask by the chosen field.
<aside> 💡 If you need to do particle advection with your velocity grid it is advised to disable the mask field option.
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Deactivate Empty Voxels will not output any voxel that has a value below the simulation threshold value.
16 Bit Write To Disk will compress the volume when it is written out to a file. This will help save on disk space usage without losing much quality if anything. This also tells the GPU to copy from device to host as 16-bit float values.
If you don't need to see the field in the viewport you can mark it as invisible or use one of the other visualization modes.