Tenry: Created page with "In a 3D coordinate system, you have three axes to define a location or direction: '''X''', '''Y''' and '''Z'''. While in 2D X is (almost) universally from left (negative) to r..."

2020-11-11T16:38:02Z

Created page with "In a 3D coordinate system, you have three axes to define a location or direction: '''X''', '''Y''' and '''Z'''. While in 2D X is (almost) universally from left (negative) to r..."

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In a 3D coordinate system, you have three axes to define a location or direction: '''X''', '''Y''' and '''Z'''. While in 2D X is (almost) universally from left (negative) to right (positive) and Y is always vertically (sometimes from top to bottom, sometomes vice versa), in 3D games and engines the definition and relation of these coordinates differ. Super Mario 64 uses the right hand rule:

* '''+X''' points right
* '''+Y''' points up
* '''+Z''' points out of the screen

== Rotation ==
Super Mario 64 uses Euler angles '''pitch''', '''yaw''' and '''roll''' for rotation.

* '''pitch''' is the rotation about the '''X-axis''', measured from +Y
** unlike yaw and roll, pitch is bounded in '''±0x4000''' (90 degrees)
* '''yaw''' is the rotation about the '''Y-axis''', measured from (absolute) +Z
** positive yaw rotates clockwise, towards +X
* '''roll''' is the rotation about the '''Z-axis''', measured from +X

Coordinate system - Revision history

Tenry: Created page with "In a 3D coordinate system, you have three axes to define a location or direction: '''X''', '''Y''' and '''Z'''. While in 2D X is (almost) universally from left (negative) to r..."