A subtle vignette darkens the edges of the frame to pull the eye toward your subject. It is one of the quietest, most effective finishing touches. Here are two ways to add one in DaVinci Resolve.
Add a node, open the Window palette, and add a Circle. Size it around your subject, then click Invert so you are affecting the edges. Pull down Gain to darken the corners and raise Softness for a smooth, invisible falloff.
If your shot pans or the subject moves, use the Tracker palette to track the window so the vignette follows them instead of sitting statically over the frame.
For a quick, symmetrical vignette, drag the Vignette ResolveFX onto a node and adjust size, softness and darkness. It is faster than a Power Window but less flexible about shape and position.
The best vignette is one nobody notices. Keep the darkening gentle and the falloff soft — if it looks like a black ring, it is far too strong. It is usually the last node in a cinematic grade.
Add a node, open the Window palette and draw a Circle window, invert it so it affects the edges, then lower the Gain and raise the softness to darken the corners smoothly. Or use the ResolveFX Vignette for a quick version.
Use the Tracker palette to track your Power Window. Resolve will move the window with the subject or camera so the vignette stays centered on them.
It is almost always too strong or too hard-edged. Reduce how much you darken the edges and increase the softness so the transition is gradual and invisible.