/// <summary>
/// Gets line (in camera space) from point on near plane to corresponding point on far plane.
/// </summary>
public static Line3d Unproject(this ICameraProjection self, Ndc2d p)
{
return(new Line3d(
self.UnprojectPointOnNearPlane(p),
self.UnprojectPointOnFarPlane(p)
));
}
/// <summary>
/// Gets point on far plane (in camera space) from point in normalized device coordinates.
/// </summary>
public static V3d UnprojectPointOnFarPlane(this ICameraProjection self, Ndc2d p)
{
return(self.ProjectionTrafo.Backward.TransformPosProj(new V3d(p.Position, 1.0)));
}
/// <summary>
/// PixelPosition from normalized device coordinates.
/// </summary>
public PixelPosition(Ndc2d ndc, Box2i renderTargetRegion)
{
Position = new V2i(ndc.TextureCoordinate * (V2d)renderTargetRegion.Size);
Bounds = renderTargetRegion;
}
/// <summary> /// Gets point on near plane (in camera space) from point in normalized device coordinates. /// </summary> public static V3d UnprojectPointOnNearPlane(this ICameraProjection self, Ndc2d p) => self.ProjectionTrafo.Backward.TransformPosProj(new V3d(p.Position, 0.0));
/// <summary>
/// PixelPosition from normalized device coordinates.
/// </summary>
public PixelPosition(Ndc2d ndc, V2i renderTargetSize)
: this(ndc, Box2i.FromSize(renderTargetSize))
{
}