The easiest way to add grain to a clip is to select a preset grain signature, add and fine-tune the grain, and then adjust
the radius until you get the result you are looking for.
To add grain using a preset grain signature:
- Enable View to see the View menu.
Disable View to return to the ReGrain menu.
- In the View menu, use the R, G, and B buttons to control the display of the corresponding channels in the image window. You
can also use the corresponding hotkeys (Shift+R, Shift+G, or Shift+B) in the ReGrain menu. Enable Excl and then click R, G, or B to view each channel exclusively as a greyscale representation.
You can also use the Shift+X hotkey combination in the ReGrain menu to enable Excl. Use Shift+Z to restore the RGB view.
- In the ReGrain menu, from the Grain Signature box, select the preset option corresponding to the grain signature that you
want to add.
Grain signature presets are indicated by four-digit names that correspond to the film stock from which their grain signature
is derived. These signatures are based on a colour noise filter.
- To add grain to the clip, adjust the RGB Gain sliders:
- Enable Proportional and drag the RGB Gain sliders to add grain proportionately to the Red, Green, and Blue channels.
- Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain.
- To compensate for under or overexposure, set the relative exposure offset by entering a value in the fstop field.
The range of permissible fstop values is from -3 to 3. Set a positive value to compensate for overexposure or a negative value
to compensate for underexposure. Values entered must be integers.
- To adjust the radius of the grain along the X-axis, drag the RGB Radius X sliders:
- Enable Proportional and drag the RGB Radius X sliders to add grain proportionately to the R, G, and B channels.
- Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain radius.
- To adjust the radius of the grain along the Y-axis, drag the RGB Radius Y sliders:
- Enable Proportional and drag the RGB Radius Y sliders to add grain proportionately to the R, G, and B channels.
- Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain radius.
- When you are satisfied with the result, click Process to add grain to the clip or continue building your processing pipeline in Batch.