# Ocean RAW format¶

When saving simulation results to images or table files (such as .jpg or .csv), some information can be lost, such as numerical precision, channels, values before post-processing, etc…

The Ocean raw file format allows saving the simulation results for later use. When opened again in Ocean, everything goes as if the simulation had just been done, including:

• Raw and post-processed data analysis and export to other formats

• Colorimetry and photometry measurements

These files have the .ocraw extension.

## Writing Ocean RAW files¶

Ocean raw files can be saved from the interface. Just select a simulation result tab in the main window area, and go to the Simulation > Save Raw menu

Ocean raw files may also be saved automatically when a render stops. This option is available in the Preferences.

You can generate Ocean raw files from the command line, by using the -o option with a .ocraw file name extension. This is especially useful when many images have to be rendered, but post-processing requires manual per-image adjustment. See command line syntax for more details.

Documentation for reading and writing Ocean RAW files in your software is available on demand.

## Opening Ocean RAW files¶

Ocean raw files may be opened from the interface, in the Simulation > Load Raw menu. They will open as if the simulation had just finished.