Here is another typi-cal problem in computer graphics. Your eye is at (4, 0, 0). You are looking at a triangular plate whose vertices are at (1, 0, 1), (1, 1, 0), and (-2, 2, 2) . The line segment from (1, 0, 0) to (0, 2, 2) passes through the plate. What portion of the line segment is hid-den from your view by the plate? (This is an exercise in finding intersections of lines and planes.)

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Here is another typi-cal problem in computer graphics. Your eye is at (4, 0, 0). You are looking at a triangular plate whose vertices are at (1, 0, 1), (1, 1, 0), and (-2, 2, 2) . The line segment from (1, 0, 0) to (0, 2, 2) passes through the plate. What portion of the line segment is hid-den from your view by the plate? (This is an exercise in finding intersections of lines and planes.)

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