3D Projection - Diagram

Diagram

To determine which screen x-coordinate corresponds to a point at multiply the point coordinates by:

where

is the screen x coordinate
is the model x coordinate
is the focal length—the axial distance from the camera center to the image plane
is the subject distance.

Because the camera is in 3D, the same works for the screen y-coordinate, substituting y for x in the above diagram and equation.

Read more about this topic:  3D Projection

Famous quotes containing the word diagram:

    “If a fish is the movement of water embodied, given shape, then cat is a diagram and pattern of subtle air.”
    —Doris Lessing (b. 1919)

    ““God’s fire upon the wane,
    A diagram hung there instead,
    More women born than men.””
    —William Butler Yeats (1865–1939)