def worldTransform(self):
tx = self.parm('tx').evalAsFloat()
ty = self.parm('ty').evalAsFloat()
tz = self.parm('tz').evalAsFloat()
Mt = Matrix4.translation(tx, ty, tz)
rx = self.parm('rx').evalAsFloat()
ry = self.parm('ry').evalAsFloat()
rz = self.parm('rz').evalAsFloat()
Mr = Matrix4.eulerToMatrixDegrees(rx, ry, rz)
return Mr * Mt
def orbit(self,delta_x_pixels, delta_y_pixels):
pixelsPerDegree = 1000 / float(self.orbiting_speed_degrees_per_radians)
radiansPerPixel = 1.0 / pixelsPerDegree * math.pi / 180.0
t2p = self.position - self.target
M = Matrix4.rotationMatrix( - delta_x_pixels * radiansPerPixel, self.ground )
t2p = M * t2p
self.up = M * self.up
right = (self.up.normalized() ^ t2p.normalized()).normalized()
M = Matrix4.rotationMatrix( delta_y_pixels * radiansPerPixel, right )
t2p = M * t2p
self.up = M * self.up
self.position = self.target + t2p
def orbit(self, delta_x_pixels, delta_y_pixels):
pixelsPerDegree = 1000 / float(self.orbiting_speed_degrees_per_radians)
radiansPerPixel = 1.0 / pixelsPerDegree * math.pi / 180.0
t2p = self.position - self.target
M = Matrix4.rotationMatrix(-delta_x_pixels * radiansPerPixel,
self.ground)
t2p = M * t2p
self.up = M * self.up
right = (self.up.normalized() ^ t2p.normalized()).normalized()
M = Matrix4.rotationMatrix(delta_y_pixels * radiansPerPixel, right)
t2p = M * t2p
self.up = M * self.up
self.position = self.target + t2p
def transform(self):
tangent = math.tan( self.fov_degrees/2.0 / 180.0 * math.pi )
viewportRadius = self.near_plane * tangent
if self.viewportWidthInPixels < self.viewportHeightInPixels:
viewportWidth = 2.0*viewportRadius
viewportHeight = viewportWidth * self.viewportHeightInPixels / float(self.viewportWidthInPixels)
else:
viewportHeight = 2.0*viewportRadius
viewportWidth = viewportHeight * self.viewportWidthInPixels / float(self.viewportHeightInPixels)
glFrustum(
- 0.5 * viewportWidth, 0.5 * viewportWidth, # left, right
- 0.5 * viewportHeight, 0.5 * viewportHeight, # bottom, top
self.near_plane, self.far_plane
)
M = Matrix4.lookAt(self.position, self.target, self.up, False)
glMultMatrixf(M.m)
def getTransform(self):
return Matrix4.lookAt(self.position, self.target, self.up, False)
def getTransform(self):
return Matrix4.lookAt(self.position, self.target, self.up, False)
