VFX

 VFX

What are visual effects?

Visual effects (VFX) is the process of changing, creating, or upgrading images for live-action media that was unable to be captured due to being expensive, risky, impractical, or impossible to shoot. Visual effects enable the creation of realistic objects, characters, and locations by combining live-action videos with VFX.

Types of visual effects in film

The VFX process includes many different parts, but they can all be divided into three primary categories: CGI, compositing, and motion capture. Each of these either takes immediately in a specialized and regulated studio or after the original photography (e.g., a mocap studio).

Visual effects artists employ a variety of technologies to blur the distinction between "real" and "unreal." In this Vox video, it is stated that one such tool is referred to as an HDRI (high dynamic range image).

Making anything fake appear true is the final goal, even though the tools of the trade are always improving. The different kinds of visual effects used in movies often overlap, but let's look at each one independently to understand how it works.

Compositing and green screen VFX

The action of fusing several pictures into one image is what constitutes the art of composition. The use of double exposure, like in the still-awesome opening sequence of True Detective, is one example of this.

Along with double exposures, the most popular and very well-compositing method is green screen shooting (or blue screen). The simplest definition of this method, called "chroma keying," is the replacement of a solid background color with a new background image.

Let's now address motion capture, the last type of visual effect that fuses live-action authenticity with CGI capability.