When you use 3D LUTs, you apply an interactive viewing LUT that works through the NVIDIA^® graphics card. The 3D LUT displays how the colour graded images will look on film stock as you work, without impeding processing speed.

The 3D LUT is a LUT that can also be applied to the video output (such as a preview monitor). Use the 3D LUT when you want to view your work on a video monitor—the 3D LUT will simulate one destination medium on another medium on output. For example, if you want to create a particular film look when you output your colour graded shots to video, you can simulate the film stock on video by selecting a 3D LUT. Finally, you can apply up to three 3D LUTs on the same image for viewing in the Input LUT, Calibrate, and Render Output menus.

To apply a 3D LUT:

1. (Optional) Import a 3D LUT into the LUT list. See Importing a LUT File.
2. In the Calibrate menu, click Off to disable existing monitor calibration settings.

   
   

3. Click 1.

   
   

4. In the Print LUT list, select a 3D LUT.

   
   

   TipIf you copied or saved a 3D LUT to the lut folder but the 3D LUT is not listed, press CTRL+R to refresh the Print LUT list.

   The selected 3D LUT is assigned to L1.

   
   

5. Repeat steps 3 and 4 to assign 3D LUTs to L2 and L3.