User Manual

Node Sizing on the Color Page
Using Node Sizing, you can apply individual sizing adjustments to clips on a per-node basis
within the Color page, which is similar in principal to using Transform nodes in the Fusion page.
All Node Sizing adjustments within a grade are cumulative, and any keyframing done to Node
Sizing parameters is stored in that node’s Node Format keyframe track in the Keyframe Editor.
Two good examples of Node Sizing include realigning color channels individually in conjunction
with the Splitter/Combiner nodes or duplicating windowed regions of an image by moving them
around the frame. Subsequent Node Sizing operations do not refer back to the source
resolution of a clip, so using multiple Node Sizing operations to reduce and enlarge an image
will reduce image resolution and sharpness.
Output Sizing on the Color Page
Output sizing is an additional transform that is applied after Edit sizing, Fusion sizing, Input
sizing, and Node sizing. It’s an overall adjustment that affects every clip at once, which is
suitable for making last-minute format alterations that you want to affect the entire program.
Technically, Output Sizing includes the Blanking controls, but those are important enough to
discuss separately. Output Sizing also does not refer back to the source resolution of clips, so if
you use Edit or Input Sizing to shrink a clip, and Output Sizing to enlarge it again, the final result
will be somewhat softened as you’re enlarging the lower resolution image output by
Input Sizing.
Output Blanking
Output blanking is not a sizing operation, but it’s often related and so worth mentioning here.
Blanking is an adjustment you can use to add black areas to the top, bottom, left, or right of an
image, in order to add “letterboxing” (black bars at the top and bottom of the image) or
“pillarboxing” (black bars at the left and right of the image) that lets you fill in the unused parts
of an image frame that’s either shorter or thinner than the current output resolution.
Once all transforms, compositing operations, and color corrections have been applied by the
DaVinci Resolve image processing pipeline, the very last operation to be performed is Output
blanking, if it’s enabled. This guarantees that overlapping images, grading, and other
adjustments are properly “blacked out” no matter what you’re doing to the program.
Output Blanking controls are found in the Timeline menu (as a series of aspect ratios) as well as
in the Output Sizing parameters of the Color page Sizing palette (via Top, Right, Bottom, and
Left controls).
TIP: Text and graphics superimposed via the Data Burn-In window, if enabled, are the
only effects that will appear in front of picture areas affected by blanking. This lets you
add timecode and other information over letterboxed areas that you don’t want to
obscure the picture.
Chapter – 9 Image Sizing and Resolution Independence 272