Ab3d.PowerToys reference help
Ab3d.PowerToys Namespaces
Ab3d.Cameras
BaseCamera Class
BaseCamera Methods
ArrangeOverride Method
BaseCreateFrom Method
BeginCameraUpdate Method
BeginInit Method
CameraPropertyChanged Method
CameraTypePropertyPropertyChanged Method
CameraWidthPropertyChanged Method
ConvertToWpfCamera Method
CreateFrom Method
CreateMouseRay3D Method
CreateNewCamera Method
CreateOrthographicMouseRay3D Method
CreatePerspectiveMouseRay3D Method
EndCameraUpdate Method
EndInit Method
FarPlaneDistancePropertyChanged Method
FieldOfViewPropertyChanged Method
ForceRefresh Method
GetCameraMatrices Method
GetCameraMatrixes Method
GetCameraPlaneOrientation Method
GetCameraPosition Method
GetMousePositionOnPlane Method
GetScreenSize Method
GetTargetViewport3DSceneBounds Method
GetWorldSize Method
GetWorldToViewportMatrix Method
GetWPFCameraDirections Method
GetWPFCameraPosition Method
InitInfoElement Method
IsDesignTimeInfoIconShownPropertyChanged Method
IsValid Method
Line3DTo2D Method
MeasureOverride Method
NearPlaneDistancePropertyChanged Method
OnCameraChanged Method
OnCameraLoaded Method
OnIsRotatingChanged Method
OnIsValidChanged Method
OnPreviewCameraChanged Method
OnRender Method
OnRendering Method
OnTargetViewport3DChanged Method
Point3DTo2D Method
Points3DTo2D Method
Rect3DTo2D Method
Refresh Method
RefreshCurrentCamera Method
RenderToBitmap Method
RotateCamera Method
StartRotation Method
StopRotation Method
SubscribeRenderingEvent Method
SubscribeToIsValidChanged Method
TargetViewport3DPropertyChanged Method
TryToUpdate Method
UnsubscribeFromIsValidChanged Method
UnsubscribeRenderingEvent Method
UpdateCamera Method
UpdateCameraLight Method
UpdateCameraLightData Method
UpdateWorldToViewportMatrix Method
UpdateWpfCamera Method
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BaseCameraCreateOrthographicMouseRay3D Method

CreateOrthographicMouseRay3D is used for orthographic camera and calculates a normalized 3D ray that goes from the mouse position into the 3D scene for an Orthographic camera. The ray goes from rayOrigin in the rayDirection. If the ray cannot be calculated this method returns false. For perspective camera use CreatePerspectiveMouseRay3D(Point, Size, Matrix3D, Matrix3D, Point3D, Vector3D) or use non-static CreateMouseRay3D(Point, Point3D, Vector3D) method.

Namespace: Ab3d.Cameras
Assembly: Ab3d.PowerToys (in Ab3d.PowerToys.dll) Version: 11.1.8864.1045
Syntax
C#
Copy
public static void CreateOrthographicMouseRay3D(
	Point mousePosition,
	Size viewportSize,
	Point3D cameraPosition,
	Vector3D lookDirection,
	Vector3D upDirection,
	double cameraWidth,
	double nearPlaneDistance,
	out Point3D rayOrigin,
	out Vector3D rayDirection
)

Parameters

mousePosition  Point
mouse position
viewportSize  Size
viewport size - usually size of Viewport3D (AvailableWidth, AvailableHeight)
cameraPosition  Point3D
position of the camera
lookDirection  Vector3D
camera's look direction vector (no need to be normalized)
upDirection  Vector3D
camera's up direction vector (no need to be normalized)
cameraWidth  Double
width of the orthographic camera
nearPlaneDistance  Double
near plane distance
rayOrigin  Point3D
out - ray origin
rayDirection  Vector3D
out - normalized ray direction
See Also