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Merge pull request #106 from frozar/3D_zoom

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[3D CAMERA] BUGFIX: Zoom
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Grant Sanderson 2018-01-31 11:15:17 -08:00 • committed by GitHub
commit d9e329e9dd
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1 changed files with 3 additions and 2 deletions
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5
topics/three_dimensions.py
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@ -28,7 +28,8 @@ class ThreeDCamera(CameraWithPerspective):
CONFIG = {
"sun_vect" : 5*UP+LEFT,
"shading_factor" : 0.2,
"distance" : 5,
"distance" : 5.,
"default_distance" : 5.,
"phi" : 0, #Angle off z axis
"theta" : -TAU/4, #Rotation about z axis
}
@ -131,7 +132,7 @@ class ThreeDCamera(CameraWithPerspective):
self.phi, self.theta, self.distance = point
def get_view_transformation_matrix(self):
return np.dot(
return (self.default_distance / self.get_distance()) * np.dot(
rotation_matrix(self.get_phi(), LEFT),
rotation_about_z(-self.get_theta() - np.pi/2),
)