How to round the four corners of the entire screen

Question

Please tell me how to round the four corners of the entire screen of the video created with DaVinci Resolve. Cropping can cut left, right, top and bottom, but the corners can only be square. The OpenFX vignette doesn't quite tell the story.

Answer

I think there are several ways to do it, but I recommend using Fusion because it looks good and can be handled in a short time.

The following two patterns are described, but the answer to the question is the first one, and the second one is the frame for the clip, so please consider it as a reference.

  • When adding a frame to the entire screen within a certain time range
  • When adding a frame to one clip

When adding a frame to the entire screen within a certain time range

Drag it onto the timeline you want to apply the "Fusion Composition" under "Effects" in the "Toolbox" of "Effects"

Adjust the "Fusion Composition" to the range to be framed, right-click "Fusion Composition" and select "Open in Fusion Page"

Select the "Rectangle" node

Select the "Background" node

Connect the nodes like this:

At this point, the "Background" black remains in the center, and the surrounding area is masked by the "Rectangle" node, making it transparent.

Resize the Rectangle. Select the "Rectangle" node on the node editor and open the inspector (You can also double-click the "Rectangle node" to open the inspector.)

Select “Invers” to invert the crop range.

Adjust the width and height with "Width" and "Height". Also, "Coner Radius" rounds off.

Then open the inspector for the "Background" node.

Double-clip "Color" to change the color. (Red, Green, etc. slide bars can also be adjusted.)

(Extreme colors are chosen for example.)

Switch between "pages".

You can check that the frame has been created.

In addition, when blurring the frame, it can be adjusted by changing the "Soft Edge" of Fusion.

When adding a frame to one clip

Select the clip and choose "Open in Fusion Page"

Select Rectangle node

Connect the nodes as

open the Rectangle inspector)

Adjust the width and height with "Width" and "Height". Also, "Coner Radius" rounds off.

Switch pages.

The lower track is displayed in the frame part. If there is no track below it, it will be black.

See below for reference.

If you want to add color to the frame, add a track below and drag the "Solid Color" from "Generator" in the "Toolbox" below the clip with the frame.

Double-click "Color" in "Generator" in the "Single Color" inspector and select a color.

It will be colored like this.

With this method, the border will only appear on clips that have borders set.

Supplement "Colored Border" can do something similar

If you don't care about the details of the shape, you can use "Colored Border" in "Effect" of "Effect" if you want to add roundness to the whole screen and the background is a single color. Drag this to the clip you want to frame.

Set "Roundness of corners" and "Width of border" with "Colored Border" in "Fusion" of "Effect" added to the inspector. The color of the border line is set in "Color".

When the border is set to "0" and the roundness is maximized. The background is an orange image.

If you want some space above and below, change the border width like this: The background is an orange image. The orange part is transparent, but the white border part is not. "Alpha" in the inspector is the border transparency for the inner image, so the orange part in the example cannot be transparent.

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