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UI Path: ||Select Liquid Simulator | LiquidSim object|| > Modify panel > Preview rollout

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Only the Overlap Of: | prv_and – When enabled, shows only the cells where the following selected channels overlap.

Liquid | prv_temperature, prv_t_threshold, prv_t_threshold2, prv_t_color, prv_t_color2 – Enables the representation of the liquid channel.

Velocity | prv_velocity, prv_v_threshold, prv_v_threshold2, prv_v_color, prv_v_color2 – Enables the representation of the velocity channel.

Velocity Streamlines | viewVelStreamlines, viewVelStreamlinesThreshold, viewVelStreamlinesThreshold2, viewVelStreamlinesColor, viewVelStreamlinesColor2 – Traces the velocity field of the cache files to generate a streamline preview.

As Rainbow | viewVelStreamlinesColorCurve – Represents the Velocity Streamlines in rainbow colors, where red is the fastest, green is medium speed and blue is the slowest.

Lines Length | viewVelStreamlinesMaxIterations – Signifies the maximum length of each streamline in the preview. Adjusting the value will provide you with a guide/preview of the velocity field's motion. The Line's length is measured in voxels and at the lowest setting, the Streamlines will be no larger than a voxel.

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The Velocity Preview is inactive when the Forces Preview is enabled, and vice versa. Similarly, the Velocity Streamlines Preview is inactive when the Force Streamlines Preview is enabled, or the other way around.

Viscosity | prv_viscosity, prv_visc_color1, prv_visc_color2, prv_visc_threshold1, prv_visc_threshold2 - Enables the representation of the viscosity channel.

Special | prv_smoke, prv_smoke_threshold, prv_smoke_threshold2, prv_smoke_color, prv_smoke_color2 – Enables the representation of special channels. 

Forces | prv_forces, prv_f_threshold, prv_f_threshold2, prv_f_color, prv_f_color2, prv_force_list – Enables preview of how Phoenix forces or standard 3ds Max forces will affect the simulation. 

Force Streamlines | viewForceStreamlines, viewForceStreamlinesThreshold, viewForceStreamlinesThreshold2, viewForceStreamlinesColor, viewForceStreamlinesColor2 – Enables a streamline preview of how Phoenix forces or standard 3ds Max forces will affect the simulation. This preview can be shown even without any loaded simulation.

As Rainbow | viewForceStreamlinesColorCurve – Represents the Force Streamlines in rainbow colors, where red is the fastest, green is medium speed and blue is the slowest. This preview can be shown even without any loaded simulation.

Lines Length | viewForceStreamlinesMaxIterations – Signifies the maximum length of each streamline in the preview. Adjusting the value will provide you with a guide/preview of the force field's motion. The Streamline's length is measured in voxels and at the lowest setting, the Streamlines will be no larger than a voxel.

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Use the Add or Remove buttons to select which forces will be previewed. Unlike other voxel preview channels which use the size of the loaded cache, the Forces preview can also work without a loaded cache and will use the grid size of the Simulator.

Additionally, some Phoenix and standard 3ds Max forces such as the Drag force are not supported yet, and are shown as if their velocity is always 0 and will not be visible. In addition, forces that act differently depending on the quantity of content in the grid (e.g. amount of liquid, smoke, or no content) are not yet supported by the preview.

 RGB | prv_uvw, prv_uvw_threshold, prv_uvw_threshold2 – Enables the representation of the RGB channel. 

Auto Range | prv_autorange – When enabled, automatically adjusts the preview ranges of visible channels for the current frame so that important data is always visible and the preview is always quick.

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