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Action:
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Gets the gvector component of a ray.
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Filename:
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kern/kern_scm/ray_scm.cxx
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Syntax:
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(ray:gvector ray)
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Arg Types:
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ray
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ray
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Returns:
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gvector
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Description:
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The argument ray specifies a position and a gvector. This extension returns the gvector direction from a ray.
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ray specifies a ray.
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Example:
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; ray:gvector
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; Define a ray.
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(define ray1 (ray (position -5 -5 -5)
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(gvector 1 0 0)))
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;; ray1
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; Extract the gvector component of a ray.
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(ray:gvector ray1)
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;; #[gvector 1 0 0]
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; Get the gvector component of a read event.
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(ray:gvector (pick:ray (read-event)))
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; Using the mouse, select a screen position.
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;; #[gvector 0.119924328873844 0.949842878199001
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;; 0.288819428153296]
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