Creating Multiple Deliverable Standards in PFClean
It is often necessary to provide the results of your restoration project in different formats, for example an SD screener, an HD version for BlueRay and a 2K master. In those cases, you can use PFClean’s Standards conversion node to change the standard resolution and frame rate of clips.
– Create The Standards Node
– Select The Incoming Standard
– Select The Output Standard
– Transforming The Image
– Output Options
01. Import Tutorial Media
Set up a new project and import the tutorial cips into a Media Bin. Then return to the Workflow Manager. There are two Full Aperture 2K clips and two PAL 576 clips.
02. The Standards Node
The Standards node applies the same transformation to all clips in the node. In order to achieve consistent output quality, the node requires all clips to be of the same standard format. This requirement is enforced through PFClean’s Standards based workflow.
Create The Standards Node
Create the Standards node and connect it to the Media Bin. Then double click on the node to open it.
Select The Incoming Standard
As described above, the Standards conversion node requires all clips to be of the same original standard format. The tutorial clips, however, include Full Aperture 2K and PAL 576 clips. Before you will be able to work in the node, you have to ensure that you work only on clips of a single standard format. This can be done by selecting an incoming standard format from the Select a standard menu. The Select a standard menu lists all standard formats of the clips in the node, PAL 576 and Full Aperture 2K for this tutorial. Selecting a standard format from this menu, restricts the clips in the node to clips of the selected format. Select PAL 576 from the menu.
Select The Output Standard
By default, the Standards node passes through the clips, without changing their standard. Uncheck Pass Through in the Output Standard section to change this. With Pass Through unchecked, the other options in the section become available.
The Format Preset menu lists the available options for the output format. Select Full Aperture 2K from this menu. The standards available in this list are defined the same way as the standards in PFClean’s Standards based workflow. It is possible to extend the list and add custom standards, as described here.
Please note: As the original standard PAL 576 and the target standard Full Aperture 2K have different frame rates, the Standards node will retime the clip to preserve the original clip’s length.
The red outline in the Cinema represents the output format’s resolution. If you don’t see the full outline, click and drag the middle mouse button to zoom or use the fit to width or fit to height buttons to zoom.
Transforming The Image
Next you can transform the frame to fit the new resolution. This can be done interactively in the Cinema with handles in the source frame. You can also adjust the frame numerically with the edit boxes or use the Snap To buttons. Click the BF button to let PFClean find the best fit.
Finally, it’s time to adjust the Output options. The Retiming and Scaling menus control which algorithm will be used to retime and scale the clip respectively. As a general rule of thumb, the higher the selected option is in the list, the faster the processing will be. Options further down the list generally provide better quality. The Cinema updates as you change these settings to let you preview the results of the currently selected algorithms.
Select Motion Interpolate as the Retiming option and Lanczos Filter as the Scaling algorithm. These settings provide high quality results for most clips. Also change the Bit Depth to 10 to match the original dpx files’ bit depths.
03. Caching Results
Return to the Workflow Manager. The Standards node lets you cache intermediate results to disk. In order to be able to cache results to disk you need to have set up disk cache locations first. You can find more information on how to do this here. To cache the results of this Standards node, you need either an Undefined location for all resolutions, or a 2K location, as the clip created in the node and cached to disk is a 2K clip. Click this button to start disk caching the clips. If the button is disabled, double check if you have the correct cache locations set.
Please note: Caching the results to disk is not necessary for this tutorial. In certain situations, however, disk caching can be used as tool to speed up subsequent workflow.
04. Changing The Standard Format Of The Remaining Clips
Caching the results of the Standards node is a background operation and you can continue working in PFClean while the clips are being cached. Create a second Standards node and connect it to the second Media Bin output, which represents the remaining Full Aperture 2K clips.
Repeat the steps outlined above to convert the clip to PAL 576.
05. The Standards Node And Deliverables
In this tutorial you have learned how to use the Standards node to change the format standard of a number of clips. In your project you will be able to use multiple Standard nodes on the same clips to create a number of output formats with a single click of a button.