public bool BeginCapture(MMDModel target, HitResult hit)
{
// save local and world frames
rotateFrameL = target.GetGameObjectFrame(CoordSpace.ObjectCoords);
rotateFrameW = target.GetGameObjectFrame(CoordSpace.WorldCoords);
rotateAxisW = rotateFrameW.GetAxis(nRotationAxis);
// save angle of hitpos in 2D plane perp to rotateAxis, so we can find delta-angle later
Vector3f vWorldHitPos = hit.HitPosition;
Vector3f dv = vWorldHitPos - rotateFrameW.Origin;
int iX = (nRotationAxis + 1) % 3;
int iY = (nRotationAxis + 2) % 3;
float fX = Vector3f.Dot(dv, rotateFrameW.GetAxis(iX));
float fY = Vector3f.Dot(dv, rotateFrameW.GetAxis(iY));
fRotateStartAngle = (float)Math.Atan2(fY, fX);
// construct plane we will ray-intersect with in UpdateCapture()
raycastFrame = new Frame3f(vWorldHitPos, rotateAxisW);
if (EnableSnapping)
{
//enable_circle_indicator(true);
}
return(true);
}
public bool BeginCapture(MMDModel target, HitResult hit)
{
// save local and world frames
translateFrameL = target.GetGameObjectFrame(CoordSpace.ObjectCoords);
translateFrameW = target.GetGameObjectFrame(CoordSpace.WorldCoords);
translateAxisW = translateFrameW.GetAxis(nTranslationAxis);
// save t-value of closest point on translation axis, so we can find delta-t
Vector3 vWorldHitPos = hit.HitPosition;
fTranslateStartT = ClosestPointOnLineT(
translateFrameW.Origin, translateAxisW, vWorldHitPos);
// construct plane we will ray-intersect with in UpdateCapture()
Vector3 makeUp = Vector3.Cross(Platform.Program.Camera.Forward, translateAxisW).GetNormalized( );
Vector3 vPlaneNormal = Vector3.Cross(makeUp, translateAxisW).GetNormalized( );
raycastFrame = new Frame3f(vWorldHitPos, vPlaneNormal);
return(true);
}
