Join David Mattingly for an in-depth discussion in this video Adding a little ambient occlusion, part of Digital Matte Painting Essentials 3: Tone.
The last property of light we'll explore on this castle is…a catch-all for all remaining darks that I call ambient occlusion.…The definition of ambient occlusion is if…something is surrounded by other things, it…is more likely to be blocked out by a shadow cast upon it or occluded.…Ambient occlusion calculates how much of some object,…such as a surface, is blocked out by something…else as compared to how much of that…object is open to the rest of the environment.…
Believe it or not, that's the simple language explanation from Wikipedia.…So let's take a look at an example to…see if we can figure out what they're talking about.…Where two surfaces meet at an interior angle that will become a little darker.…So wherever you see an interior corner on…our castle you should go through and subtely…darken it. You'll need to finesse this one.…You don't want a hard line but a soft shadow of darkness.…Internal angles like this will be darker for a couple of reasons.…
Ambient inclusion says we'll be getting less reflective light in a corner…
This course is part 3 in David's Digital Matte Painting Essentials series. Go back to Digital Matte Painting Essentials 2: Perspective, part 2, to recreate the castle drawing he uses in this course, or if you simply want to learn more about form, you can use the example provided in the exercise files.
- Selecting the silhouette
- Find the dark sides and light sides in the drawing
- Using mask-holding layers
- Examining the light and dark sides of rounded surfaces
- Looking at the cores
- Adding cast shadows
- Separating surfaces with final darks
- Adding ambient occlusion