def updateStars(self, newCameraPos):
# TODO: Add unit tests!
self.stars.setPos(newCameraPos)
cameraDeltaPos = tupleSegment(self.lastCameraPos,
vec3ToTuple(newCameraPos))
xRotation = Quat()
xRotation.setFromAxisAngle(cameraDeltaPos[0] * .1, Vec3(0, 1, 0))
yRotation = Quat()
yRotation.setFromAxisAngle(-cameraDeltaPos[1] * .1, Vec3(1, 0, 0))
newRotation = xRotation.multiply(yRotation)
self.starsRotation *= newRotation
self.stars.setQuat(self.starsRotation)
def RotatePoint3(p, v1, v2):
v1.normalize()
v2.normalize()
cross = v1.cross(v2)
cross.normalize()
if cross.length():
a = v1.angleDeg(v2)
quat = Quat()
quat.setFromAxisAngle(a, cross)
p = quat.xform(p)
return p
def updateStars(self, newCameraPos):
# TODO: Add unit tests!
self.stars.setPos(newCameraPos)
cameraDeltaPos = tupleSegment(
self.lastCameraPos,
vec3ToTuple( newCameraPos )
)
xRotation = Quat()
xRotation.setFromAxisAngle(
cameraDeltaPos[0] * .1,
Vec3( 0, 1, 0 )
)
yRotation = Quat()
yRotation.setFromAxisAngle(
-cameraDeltaPos[1] * .1,
Vec3( 1, 0, 0 )
)
newRotation = xRotation.multiply( yRotation )
self.starsRotation *= newRotation
self.stars.setQuat( self.starsRotation )
