March 2017
Intermediate to advanced
480 pages
11h 3m
English
Content preview from Game Physics Cookbook
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Camera object
In order to build engaging physics demos, we need to be able to view a 3D scene in some way. This is where a camera becomes useful. A 3D camera is made up of two matrices, the view matrix and the projection matrix. The view matrix is the inverse of the camera's world transform. The projection matrix transforms vertex data from eye space to NDC space:
The view matrix of a camera should be orthogonal. An orthogonal camera is one whose rotation basis vectors are at right angles from each other. Two vectors that are at a right angle are orthogonal. Orthogonal vectors are perpendicular to each other. The result of the dot product between ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.