By Anthony A. Apodaca

ISBN-10: 1558606181

ISBN-13: 9781558606180

This can be pretty well the bible for an individual who makes use of renderman day-by-day. no matter if you're not a programmer this is a nice reference for these issues the programmers speak about :)

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Extra resources for Advanced RenderMan: Creating CGI for Motion Pictures

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A vector is an array of numbers. When we want to emphasize the fact that a single individual number is used in a particular calculation, we use the term scalar. Positions in 3D are represented by vectors known as points. Points have three coordinates, which refer to the distances from the origin to that location in each of the three dimensions (by convention known as x, y, and z). Directions in 3D are represented by direction vectors. Direction vectors are often loosely just called vectors, which inevitably leads to certain confusion.

The lens system in modern cameras is usually relatively complicated-it magnifies, is typically adjustable in several ways, compensates for certain types of optical distortion, and so on. However, at any given zoom and focus setting, the multielement lens system is effectively equivalent to a single perfect converging lens at some position in the lens barrel. 8). Because of the way the lenses work, the image on the film plane is upside down. Narrowing the lens aperture blocks some light from reaching the film, and therefore dims the image.

Directions in 3D are represented by direction vectors. Direction vectors are often loosely just called vectors, which inevitably leads to certain confusion. Fortunately, it is usually obvious from context whether vector means general mathematical vectors or direction vectors specifically. Direction vectors also have three coordinates, which refer to the distance they represent in each of the three dimensions. 3 Scaling, adding, and subtracting direction vectors. sum of the squares of the coordinates (there's that Pythagorean theorem again) and is denoted by writing the vector between vertical bars.

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Advanced RenderMan: Creating CGI for Motion Pictures by Anthony A. Apodaca

by Anthony

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