3D rotating and flipping does not work as expected for ImageMobject #2412
Description
Description of bug / unexpected behavior
Attempting to flip a ImageMobject across an axis does not seem to behave correctly. Flipping across the UP axis acts the same as a 180° rotation, while flipping across the RIGHT axis does nothing.
How to reproduce the issue
class Main(Scene):
def construct(self):
imgs = [ImageMobject("thinking.png").scale(0.1) for i in range(4)]
self.add(Group(
imgs[0],
imgs[1].flip(),
imgs[2].rotate(PI, UP),
imgs[3].apply_matrix([[-1, 0], [0, 1]])
).arrange(RIGHT))Additional media files
Images/GIFs
Additional comments
The only way I have figured out to flip images across a single axis so far is to edit the pixel array like so:
img.pixel_array = np.fliplr(img.pixel_array) # for horizontal
img.pixel_array = np.flipud(img.pixel_array) # for vertical