Grass Valley EDIUS Pro v.7.4 Reference Manual - Manual (Page 461)

Chapter 12 Appendix — Effects List
461
[Soft Light]
Applies a multiplication and screening effect, making the background darker where the foreground is dark, and the background lighter where
the foreground is light.
[Hard Light]
Blending of where the foreground is dark makes the image darker due to a multiplying effect, and blending of where the foreground is light
makes the image lighter due to a screening effect.
[Vivid Light]
Blending of where the foreground is light lowers the contrast and makes the image lighter, and blending of where the foreground is dark
increases the contrast and makes the image darker.
[Pin Light]
Replaces parts that are light in the foreground with a darker part, and replaces parts that are dark in the foreground with lighter parts.