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Expand – Opens a floating dialog that contains the selected rollout and automatically folds the command panel rollout.

? – Opens up the help documents for the Liquid Resimulation.

Start Frame

  • From Simulation | rs_start_from_sim – When enabled, the Resimulation will run from the first frame of the base simulation to the simulation End Frame or the Custom Stop Frame, depending on the options.
  • Custom | resim_startframe - Explicitly sets the Start Frame of the Resimulation. This can also be a negative number.

Stop Frame

  • From Simulation | rs_stop_from_sim – When enabled, the Resimulation will run from the base simulation Start Frame or the Custom Start Frame to the last frame of the base simulation.
  • Custom | resim_stopframe - Explicitly sets the End Frame of the Resimulation. This can also be a negative number.
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Particle Resimulation

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Enable | resim_resimulate_particles – Enables/disables the Particle Resimulation.

Splash and Mist | resim_splash – Specifies that the Splash and Mist will be resimulated.

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The Affect Liquid parameter on the Splash and Mist rollout will be ignored when resimulating Splash, because the liquid is already simulated and cannot be changed without a full simulation.

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Resimulating the Foam on Hit parameter on the Splash and Mist rollout requires Splash and Mist to be resimulated.

Foam | resim_foam – Specifies that the Foam will be resimulated.

Wetting | resim_wet – Specifies that the WetMap particles will be resimulated.

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The Sticky Effect setting for Wetting in the Liquid rollout will be ignored when resimulating wetting. This is because the liquid is already simulated and cannot be changed without a full simulation.

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Resimulation Cache

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Base Cache Files Path | resim_inpath – Specifies the base simulation caches which will be used as base for resimulation. $(same_as_output) by default.

Output and Render Path | resim_outpath – Specifies the path for writing the output cache files. See Output Path for more details on the $(...) macros you can use. $(scene_path) by default (will append "_resim" to the end of the file name).

Click the "..." button to open a menu with the following options:

Browse - Opens a dialog where you can select where the resimulation caches will be written to. The filename you type in must contain # signs so each resimulation frame will be written to a differently numbered file. Also, you can choose between two file formats - AUR and VDB cache files.

Delete Cache Files - Clears the resimulation files.

Reset to Default - Resets the resimulation path to default.

Help - Opens this help page.

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You can use the same Output and Render Path as the Base Cache Files Path, and this way Phoenix will not create a separate cache sequence for resimulation, but will overwrite the base simulation caches instead. It's valid to do so if you need a more complicated setup or when not enough disk space is available.

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The following error message may appear when you start a re-simulation:

"Cannot start the Re-Simulation! Please make sure the simulation was run with the 'Velocity' channel checked under the 'Output' rollout, and that the cache files in the Simulation Input path exist."

The reason may be that either the files in the Input Simulation Path do not exist at all, or they do not have Grid Velocity Channel exported when you have simulated them beforehand. Of course, you may use more complicated setups where you resimulate over an already resimulated cache file, or you may Load an existing base cache file as the initial state of the re-simulation. These are all possible; you just need to have velocity in the base cache and an existing path to it.

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