Keyframe Color Interpolators#

Color animation explained in this tutorial and how to use different color space interpolators.

import numpy as np

from fury import actor, window
from fury.animation import Animation
from fury.animation.interpolator import (
from fury.animation.timeline import Timeline
from fury.colormap import distinguishable_colormap

scene = window.Scene()

showm = window.ShowManager(
    scene, size=(900, 768), reset_camera=False, order_transparent=True

Initializing positions of the cubes that will be color-animated.

cubes_pos = np.array(
        [[-2, 0, 0]],
        [[0, 0, 0]],
        [[2, 0, 0]],
        [[4, 0, 0]],
        [[6, 0, 0]],

Static labels for different interpolators (for show)

linear_text = actor.vector_text('Linear', (-2.64, -1, 0))
lab_text = actor.vector_text('LAB', (-0.37, -1, 0))
hsv_text = actor.vector_text('HSV', (1.68, -1, 0))
xyz_text = actor.vector_text('XYZ', (3.6, -1, 0))
step_text = actor.vector_text('Step', (5.7, -1, 0))
scene.add(step_text, lab_text, linear_text, hsv_text, xyz_text)

Creating an animation to animate the actor. Also cube actor is provided for each timeline to handle as follows: Animation(actor), Animation(list_of_actors), or actors can be added later using animation.add() or animation.add_actor()

anim_linear_color = Animation(actor.cube(cubes_pos[0]))
anim_LAB_color = Animation(actor.cube(cubes_pos[1]))
anim_HSV_color = Animation(actor.cube(cubes_pos[2]))
anim_XYZ_color = Animation(actor.cube(cubes_pos[3]))
anim_step_color = Animation(actor.cube(cubes_pos[4]))

Creating a timeline to control all the animations (one for each color interpolation method)

timeline = Timeline(playback_panel=True)

Adding animations to a Timeline.

    [anim_linear_color, anim_LAB_color, anim_HSV_color, anim_XYZ_color, anim_step_color]

Setting color keyframes#

Setting the same color keyframes to all the animations

First, we generate some distinguishable colors

Then, we set them as keyframes for the animations

for t in range(0, 20, 5):
    col = colors.pop()
    anim_linear_color.set_color(t, col)
    anim_LAB_color.set_color(t, col)
    anim_HSV_color.set_color(t, col)
    anim_XYZ_color.set_color(t, col)
    anim_step_color.set_color(t, col)

Changing the default scale interpolator to be a step interpolator The default is linear interpolator for color keyframes


Adding the main timeline to the show manager


interactive = False

if interactive:

window.record(scene, out_path='viz_keyframe_animation_colors.png', size=(900, 768))
viz color interpolators

Total running time of the script: ( 0 minutes 0.113 seconds)

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