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An Artist's Real-Time 3D Glossary
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Rotational Axes
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Pitch, Yaw, and Roll
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Pitch is red,
yaw is green,
and roll is blue.
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Pitch
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Most RT3D engines count from 90 to -90 degrees, starting out pointed straight up, turning downwards and ending pointed straight down. If you nod your head "yes," this is pitch in action. Straight forward is 0 degrees. Also called declination.
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Yaw
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Most RT3D engines count from 0 to 360 degrees, starting out pointed straight forward, turning clockwise and ending pointed straight forwards again. If you shake your head "no," this is yaw in action. Straight forward is both 0 and 360 degrees. Also called azimuth.
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Roll
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Most RT3D engines count from -180 to 180 degrees, starting out twisted upside-down all the way to the left, turning clockwise and ending twisted upside-down all the way to the right. If you tilt your head to read the spine of a book, this is roll in action. Straight forward with no roll is 0 degrees.
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Back to the Glossary
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About the Author
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