Note
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Create a MP4 Movie¶
Create an animated MP4 movie of a rendering scene
import pyvista as pv
import numpy as np
filename = "sphere-shrinking.mp4"
mesh = pv.Sphere()
mesh.cell_arrays["data"] = np.random.random(mesh.n_cells)
plotter = pv.Plotter()
# Open a movie file
plotter.open_movie(filename)
# Add initial mesh
plotter.add_mesh(mesh, scalars="data", clim=[0, 1])
# Add outline for shrinking reference
plotter.add_mesh(mesh.outline_corners())
print('Orient the view, then press "q" to close window and produce movie')
# Render and do NOT close
plotter.show(auto_close=False)
# Run through each frame
plotter.write_frame() # write initial data
# Update scalars on each frame
for i in range(100):
random_points = np.random.random(mesh.points.shape)
mesh.points = random_points * 0.01 + mesh.points * 0.99
mesh.points -= mesh.points.mean(0)
mesh.cell_arrays["data"] = np.random.random(mesh.n_cells)
plotter.add_text("Iteration: {:d}".format(i), name='time-label')
plotter.write_frame() # Write this frame
# Be sure to close the plotter when finished
plotter.close()

Out:
Orient the view, then press "q" to close window and produce movie
Total running time of the script: ( 0 minutes 13.416 seconds)