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Fixed text center of rotation for add_fixed_orientation_mobjects() #4701

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Fixed text center of rotation for add_fixed_orientation_mobjects() #4701

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13 changes: 9 additions & 4 deletions manim/mobject/opengl/opengl_mobject.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2841,11 +2841,16 @@ def fix_in_frame(self) -> Self:
self.is_fixed_in_frame = 1.0
return self

@affects_shader_info_id
def fix_orientation(self) -> Self:
self.is_fixed_orientation = 1.0
self.fixed_orientation_center = tuple(self.get_center())
self.depth_test = True
# do not use @affects_shader_info_id: that invokes this once per family
# member with that member as self, so each submobject would use its own
# get_center(). simply share one pivot for the whole tree.
anchor = tuple(self.get_center())
for mob in self.get_family():
mob.is_fixed_orientation = 1.0
mob.fixed_orientation_center = anchor
mob.depth_test = True
mob.refresh_shader_wrapper_id()
return self

@affects_shader_info_id
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