Images and Textures

Algan provides utilities to color mobs based on image files or RGBA arrays, known as texturing. Currently texturing is only implemented for 3d objects inheriting from Surface .

Texturing Surfaces

The Surface class is used to make arbitrary curved surfaces, both Sphere and Cylinder are created by inheriting from it. Surfaces can be shaped by providing a function which maps intrinsic (UV) coordinates to world coordinates. ImageMob also inherits from Surface, but allows for coloring based on a provided image file path.

Example: TexturingManifolds

from algan import *

# Make a flat (plane) surface, colored by our image file.
mob = ImageMob('world_map.jpg').scale(2).spawn()
mob.wait()

with Seq(run_time_unit=10, rate_func=rate_funcs.identity):
    for shape in (Sphere(radius=2), Cylinder(radius=1, height=2)):
        # Change the surface shape.
        mob.set_shape_to(shape)
        mob.rotate(360, UP)
        mob.rotate(360, RIGHT)

render_to_file()

from algan import *

# Make a flat (plane) surface, colored by our image file.
mob = ImageMob('world_map.jpg').scale(2).spawn()
mob.wait()

with Seq(run_time_unit=10, rate_func=rate_funcs.identity):
    for shape in (Sphere(radius=2), Cylinder(radius=1, height=2)):
        # Change the surface shape.
        mob.set_shape_to(shape)
        mob.rotate(360, UP)
        mob.rotate(360, RIGHT)

render_to_file()