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Combining CG and Reality

This first section will demonstrate how to render an architectural model against a background plate. The objective is to provide the compositor with the components required to join your model with an existing image to create a convincing product. We'll be rendering a model against a static image, but the same principles apply to video backgrounds. Some of the final steps of the compositing process, including masking and color correction, are beyond the scope of this chapter, but they are covered in the compositing chapter later in this book. You also may want to look into the features included in discreet's combustion composition and postproduction software.

Preparation and Research

Rendering a CG model or scene in front of a photograph of an actual location requires some knowledge and information regarding when and where the image was taken. What time of day was it and what was the date? What was the cloud cover like? Was additional lighting introduced into the scene by the lighting director or camera operator? Getting as much information as you can will help streamline your decision-making process.


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