Camera and 3D¶

The film's code

import manimgx as m


class CameraAnd3DHero(m.ThreeDScene):
    def construct(self) -> None:
        self.set_camera_orientation(phi=70 * m.DEGREES, theta=-45 * m.DEGREES)
        axes = m.ThreeDAxes(x_range=[-3, 3], y_range=[-3, 3], z_range=[-2, 2])
        sphere = m.Sphere(radius=1.2, resolution=(32, 32)).set_color(m.BLUE)
        torus = m.Torus(major_radius=2.2, minor_radius=0.2).set_color(m.YELLOW)
        self.add(m.SunLight(4 * m.UP + 3 * m.OUT), m.AmbientLight(intensity=0.3))
        self.add(axes, sphere, torus)
        self.begin_ambient_camera_rotation(rate=0.4)
        self.wait(4)

The camera decides what the video shows. Its frame is a rectangle in the scene: the frame that positions are measured in. Move the frame, and the view moves with it; scale it, and the view zooms. In three dimensions, the camera looks at the frame from an angle that you choose, and turns around it while the scene plays.

Every mobject has three coordinates, so flat mobjects show in 3D too. Surfaces and solids are made for it, and lights shade them.

Camera

The frame: pan and zoom. The look of the picture, and what stays fixed on the screen.
3D scenes

Look at a scene from any angle, move the camera, turn it around the scene.
Surfaces and solids

Surfaces of functions, spheres, tori, cylinders, cones, cubes and polyhedra.
Lights and materials

Sun, bulbs, spotlights and the sky, and how surfaces reflect them.