Magic Mask, Smart Reframe
DaVinci Resolve (Studio) video editing applications are highly optimized for hardware acceleration by GeForce RTX graphics cards. These can dramatically reduce the time of some tasks, turning hours into minutes or, for larger projects, days into hours. We’ll take a look at what exactly this is about in a two-part miniseries dedicated to streamlining work in Black Magic Studio video editors with NVIDIA Ada Lovelace GPUs.
Magic Mask
A tool for quickly selecting the subject in the scene you want to “mask” (color mask, but also changing the depth of field if necessary). For our purposes, we will work with a short, 28-second clip at 4096 × 2160 px resolution with a bitrate of 91.5 Mbps.This sample is freely available for download, so you can easily compare our results, which we will publish as part of tests, with the situation on your build.
After importing the project, set the Magic Mask filter in the panel below the preview. And then in the advanced settings check the options Person Mask, Add Stoke, Invert Mask, Toogle Mask Overlay and Quality to Better. As highlighted (in green) in the screenshot below.
Then, for example, you draw a line on the model’s neck that applies the mask to the background…
… and after pressing the Track bi-directional button in the navigation above the timeline you measure the time it takes to compute all the frames of the video.
Smart Reframe
With Smart Reframe, the suitable video can be reformatted from a traditional (landscape) view to a vertical view. This is typically suitable for playback on a smartphone without the need to rotate the display.
The conversion (typically suitable for selected social networks) works by marking a moving object for the camera to focus on in a traditional horizontal video. The rest is removed during processing. We use an 8K video (8192 × 4096 px@24, 89s, 139.8 Mbps) for testing. You can find it at this link.
In the video, we’re going to watch a water bubble. You put the object you want the camera to be interested in into the Smart Reframe selection (its settings will appear by expanding the Inspector option in the upper right corner of the GUI)…
… start the operation by pressing the “Reframe” button.
- Contents
- What is it about?
- Magic Mask, Smart Reframe
- Face Refinement, Optical Flow and Super Scale
- AV1 and HEVC encoding
- Explore: what is the AV1 video format?
