This method can also be used in conjunction with the “Inside, Outside & Edge Approach”. When several mattes of this kind are combined into one matte it is possible to solve an array of complex keying problems. Utilizing what is known as an ?area of interest? we can focus on specific areas in the matte and produce a key that addresses the specific problems for just this selected area. There are several training videos that focus on this approach to keying as well as some free ones in our library.Ĭombining Mattes: Individual Areas of InterestĪ general key might give a good matte, but there are usually areas that need special treatment, i.e. You will learn which shots are the most appropriate for this more advanced approach to keying. Once this hard matte is created, the artist can focus on refining the edges of the subject to extract all the detail required. One method can create a solid, or hard, ?inside matte? that removes all the unwanted noise from the outside of the matte. These mattes can be combined for a more refined approach when a single key does not achieve the desired result. All of them are able to produce (and output) an alpha channel and matte. Nuke & NukeX come with a range of excellent keyers. (see also Modular Keying)Ĭombining Mattes: Inside, Outside & Edge Approach Having access to the component parts of a multiple layer keyer can help you hone in on problem areas and solve your keying issues in less time – freeing up time to refine the composite layers and blending. All commercial keyers will take you some of the way there but, more often than not, your shot will require a multiple step solution. In a green screen shot, for example, simply subtracting the green from the red channel can create a good starting point for a matte. Simple Color Difference KeySimple Color Difference Key After learning these techniques Nuke will become an indispensible solution for even the most challenging keying and channel operations. Color spill is almost always a problem and dealing with it is one of the most important aspects of integrating your process screen elements into a shot. You will learn proven ways to fix problems, such as preserving hair detail and removing color spill from process screens. You will learn to use multiple keying approaches that will prepare you for any shot, and the various challenges that inevitably arise. In this in-depth training video you will learn, step-by-step, to create perfect mattes from green/blue screen footage (process screens) in Nuke. CmiVFX – Nuke Advanced Keying And Channel Operations with Expressions
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |