Join Mark Christiansen for an in-depth discussion in this video Add quick-and-dirty defocus with Box Blur, part of After Effects Compositing: 2 Matching Foreground to Background.
…Box blur is a simple effect that's…technically identical to a Gaussian or fast blur.…With one important difference, the ability to set iterations.…Even at the default setting, it provides a quick and…dirty alternative to the more render intensive camera lens blur.…This can be useful when matching background to focus of one or many layers.…Let's use this sticker as an example.…Now regular blur isn't going to match the look of defocusing, because as…we've seen, it blends pixels together and will gray out these white areas.…
A box blur however emphasizes them in a way…that's similar to what you see with camera lens blur.…Here at the beginning, I can key frame this blur radius…to match the other blurring that I see on the back wall.…And then I can go to the end and make it a lot heavier.…Now if you study it closely, it doesn't look perfect, but…in the context of the whole scene, it doesn't look bad.…Actually I'm probably going a little bit harder than I need to there.…The benefit again is that at a casual glance, what you see…
This course was created by Mark Christiansen. We're honored to host this training in our library.
- Matching color in black and white
- Matching levels with proportions
- Desaturating with tint
- Creating depth of field
- Reducing or removing grain
Skill Level Intermediate
VFX Techniques: Tracking Objects onto a Facewith Lee Lanier2h 42m Intermediate
1. Compositing Is Matching
2. More Complex Compositing
3. Introducing Depth
4. Organize Projects for VFX
5. Befriend Noise and Grain
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