In this tab, you can control what fields the solver will output and provide various settings to control the resolution and compression.

Settings

You can choose to output simulation particles, fields as VDBs, and a visualizer for the sparse data structure for debugging purposes.

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Particles

Particles always get their positions set when being output. However, you can choose whether or not the velocity and color attribute is output.

Color is computed from the velocity of a particle. you can control the colors and velocity range here.

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Note that you can’t source particle color at this time. This is computed from velocity magnitude.

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outputTabParticleColorSettings.png

Fields

You can choose what specific fields get output. Choosing fewer fields will improve the speed of the simulation.

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In Paradigm most of the fields are for visualizing various internal data rather than being used for anything useful at render time.

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outputTab.png

Compression

outputTabFieldSettings.png

You can choose to output some fields at a lower resolution. Sometimes you may not need a full resolution 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.

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.

Visualizer