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CreatePerspectiveMouseRay3D is used for perspective camera and calculates a normalized 3D ray that goes from the mouse position into the 3D scene.
The ray goes from rayOrigin in the rayDirection.
If the ray cannot be calculated this method returns false.
For orthographic camera use CreateOrthographicMouseRay3D(Point, Size, Point3D, Vector3D, Vector3D, Double, Double, Point3D, Vector3D) or use non-static CreateMouseRay3D(Point, Point3D, Vector3D) method.
Namespace: Ab3d.Cameras
Assembly: Ab3d.PowerToys (in Ab3d.PowerToys.dll) Version: 11.2.9104.2045
SyntaxC#
public static bool CreatePerspectiveMouseRay3D( Point mousePosition, Size viewportSize, ref Matrix3D viewMatrix, ref Matrix3D projectionMatrix, out Point3D rayOrigin, out Vector3D rayDirection )
Parameters
- mousePosition Point
- mouse position
- viewportSize Size
- viewport size - usually size of Viewport3D (AvailableWidth, AvailableHeight)
- viewMatrix Matrix3D
- camera's view matrix
- projectionMatrix Matrix3D
- camera's projection matrix
- rayOrigin Point3D
- out - ray origin
- rayDirection Vector3D
- out - normalized ray direction
Return Value
Booleantrue if rayOrigin and rayDirection were set or false if ray cannot be defined (usually when the size of TargetViewport3D is not known)
See Also