Back in time when I used to see Photoshop’s layers section, there was a list of things named like Darken, Multiply, Screen and so on. They used to change the color when that particular layer was placed on some other layer.
Later in my college days I came to know these were the well known blending modes. There are mathematical in nature and does maths on pixel by pixel basis.
Below is a list of procedures a compositor should follow. I also have a blog post compiled of optimization tips, which should work as side document to this post.
Distortion # Evey footage has some sort of distortion. Not dealing with distortion before 3D integration can result in catastrophic disasters. It’s good to first undistort the background plate > do the CGÂ integration > use the same undistortion data to re-distort the whole output. This way CG will be distorted as well. Giving a feel if it was shot with a camera.
