Introduction
3D examples in ManimVTK leverage ThreeDScene for camera control and work best with the VTK or OpenGL renderer.Basic 3D Objects
Sphere Example
from manimvtk import *
class SphereExample(ThreeDScene):
def construct(self):
# Set camera angle
self.set_camera_orientation(phi=60 * DEGREES, theta=30 * DEGREES)
# Create sphere
sphere = Sphere(radius=1.5, resolution=(20, 20))
sphere.set_color(BLUE)
self.play(Create(sphere))
self.wait()
Render:
manimvtk -pql examples.py SphereExample --renderer vtk
Multiple 3D Objects
from manimvtk import *
class Multiple3DObjects(ThreeDScene):
def construct(self):
self.set_camera_orientation(phi=70 * DEGREES, theta=30 * DEGREES)
# Create objects
sphere = Sphere(radius=0.5, color=BLUE).shift(LEFT * 2)
cube = Cube(side_length=1, color=RED)
cone = Cone(base_radius=0.5, height=1, color=GREEN).shift(RIGHT * 2)
objects = VGroup(sphere, cube, cone)
self.play(Create(objects))
self.begin_ambient_camera_rotation(rate=0.1)
self.wait(5)
self.stop_ambient_camera_rotation()
Parametric Surfaces
Wave Surface
from manimvtk import *
import numpy as np
class WaveSurface(ThreeDScene):
def construct(self):
surface = Surface(
lambda u, v: np.array([
u,
v,
np.sin(u) * np.cos(v)
]),
u_range=[-2, 2],
v_range=[-2, 2],
resolution=(40, 40)
)
surface.set_color_by_gradient(BLUE, GREEN, RED)
self.set_camera_orientation(phi=60 * DEGREES, theta=-45 * DEGREES)
self.play(Create(surface), run_time=2)
self.wait()
Torus
from manimvtk import *
import numpy as np
class TorusExample(ThreeDScene):
def construct(self):
torus = Surface(
lambda u, v: np.array([
(2 + np.cos(v)) * np.cos(u),
(2 + np.cos(v)) * np.sin(u),
np.sin(v)
]),
u_range=[0, TAU],
v_range=[0, TAU],
resolution=(40, 40)
)
torus.set_color_by_gradient(BLUE, PURPLE, RED)
self.set_camera_orientation(phi=60 * DEGREES, theta=45 * DEGREES)
self.play(Create(torus))
self.begin_ambient_camera_rotation(rate=0.15)
self.wait(6)
3D Animations
Rotating Cube
from manimvtk import *
class RotatingCube(ThreeDScene):
def construct(self):
cube = Cube(side_length=2, fill_opacity=0.7)
cube.set_color_by_gradient(BLUE, GREEN, YELLOW)
self.set_camera_orientation(phi=60 * DEGREES, theta=30 * DEGREES)
self.play(Create(cube))
self.play(Rotate(cube, angle=TAU, axis=UP, run_time=4))
self.wait()
Growing Sphere
from manimvtk import *
class GrowingSphere(ThreeDScene):
def construct(self):
sphere = Sphere(radius=0.5, color=BLUE)
self.set_camera_orientation(phi=60 * DEGREES)
self.play(GrowFromCenter(sphere))
self.play(sphere.animate.scale(3), run_time=2)
self.wait()
Camera Movement
Orbiting Camera
from manimvtk import *
class OrbitingCamera(ThreeDScene):
def construct(self):
axes = ThreeDAxes()
sphere = Sphere(radius=1, color=BLUE)
self.add(axes, sphere)
# Start from front
self.set_camera_orientation(phi=60 * DEGREES, theta=0)
self.wait()
# Orbit 360 degrees
self.move_camera(theta=360 * DEGREES, run_time=8)
self.wait()
Camera Zoom
from manimvtk import *
class CameraZoom(ThreeDScene):
def construct(self):
cube = Cube()
self.add(cube)
# Start far away
self.set_camera_orientation(phi=60 * DEGREES, distance=10)
self.wait()
# Zoom in
self.move_camera(distance=4, run_time=3)
self.wait()
VTK Export for ParaView
Export 3D Surface
from manimvtk import *
import numpy as np
class ExportSurface(ThreeDScene):
def construct(self):
surface = Surface(
lambda u, v: np.array([u, v, u**2 - v**2]),
u_range=[-2, 2],
v_range=[-2, 2],
resolution=(30, 30)
)
surface.set_color_by_gradient(BLUE, RED)
self.set_camera_orientation(phi=60 * DEGREES)
self.play(Create(surface))
self.wait()
manimvtk -pqh examples.py ExportSurface --renderer vtk --vtk-export
.vtp file in ParaView for further analysis.
Next Steps
Scientific Examples
Scientific visualization examples
3D API Reference
Complete 3D objects reference
VTK Renderer
VTK renderer features
Camera Guide
Master camera control