def quadratic_arcs(cfg):
cfg.duration = 3
# fmt: off
points = (
(-2 / 3, 1 / 3, 0),
(2 / 3, 1 / 3, 0),
(2 / 3, -1 / 3, 0),
(0, -1 / 3, 0),
)
controls = (
(0, 5 / 6, 0),
(1 / 3, -2 / 3, 0),
)
# fmt: on
keyframes = [
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyBezier2(control=controls[0], to=points[1]),
ngl.PathKeyMove(to=points[2]),
ngl.PathKeyBezier2(control=controls[1], to=points[3]),
]
path = ngl.Path(keyframes, precision=64)
return _path_scene(cfg, path, points, controls)
def composition(cfg):
cfg.duration = 5
# fmt: off
points = (
(-.6, .2, 0),
(-.2, .7, 0),
(.5, .3, 0),
(-.3, .1, 0),
(.1, -.2, 0),
(-.2, -.4, 0),
(.3, -.6, 0),
(.7, -.2, 0),
(-.4, -.1, 0),
(-.8, -.1, 0),
(-.6, .2, 0),
)
controls = (
(.4, .8, 0),
(.0, .1, 0),
(-.1, .2, 0),
(.6, -.6, 0),
(-.6, -.2, 0),
(-.8, .4, 0),
(-1.2, .5, 0),
)
# fmt: on
keyframes = [
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyLine(to=points[1]),
ngl.PathKeyBezier3(control1=controls[0],
control2=controls[1],
to=points[2]),
ngl.PathKeyMove(to=points[3]),
ngl.PathKeyBezier2(control=controls[2], to=points[4]),
ngl.PathKeyLine(to=points[5]),
ngl.PathKeyLine(to=points[6]),
ngl.PathKeyBezier2(control=controls[3], to=points[7]),
ngl.PathKeyMove(to=points[8]),
ngl.PathKeyBezier3(control1=controls[4],
control2=controls[5],
to=points[9]),
ngl.PathKeyBezier2(control=controls[6], to=points[10]),
]
path = ngl.Path(keyframes)
return _path_scene(cfg, path, points, controls)
def transform_path(cfg):
cfg.aspect_ratio = (1, 1)
cfg.duration = 7
shape = _transform_shape(cfg, w=0.2, h=0.5)
# fmt: off
points = (
(0.7, 0.0, -0.3),
(-0.8, -0.1, 0.1),
)
controls = (
(0.2, 0.3, -0.2),
(-0.2, -0.8, -0.4),
)
# fmt: on
keyframes = (
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyLine(to=points[1]),
ngl.PathKeyBezier2(control=controls[0], to=points[0]),
ngl.PathKeyBezier3(control1=controls[0],
control2=controls[1],
to=points[1]),
)
path = ngl.Path(keyframes)
# We use back_in_out easing to force an overflow on both sides
anim_kf = [
ngl.AnimKeyFrameFloat(0, 0),
ngl.AnimKeyFrameFloat(cfg.duration - 1, 1, "back_in_out"),
]
return ngl.Translate(shape, vector=ngl.AnimatedPath(anim_kf, path))
def lines(cfg):
cfg.duration = 3
# fmt: off
points = (
(-2 / 3, 1 / 6, 0),
(-1 / 6, 2 / 3, 0),
(0, 1 / 2, 0),
(1 / 2, -1 / 3, 0),
(-1 / 2, -2 / 3, 0),
)
# fmt: on
keyframes = [
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyLine(to=points[1]),
ngl.PathKeyLine(to=points[2]),
ngl.PathKeyMove(to=points[3]),
ngl.PathKeyLine(to=points[4]),
]
path = ngl.Path(keyframes)
return _path_scene(cfg, path, points)
def complex_bezier(cfg):
cfg.duration = 5
# fmt: off
points = (
(-0.70, 0.08, 0.0),
(-0.15, 0.06, 0.0),
(-0.24, 0.52, 0.0),
(0.23, 0.15, 0.0),
(0.05, -0.25, 0.0),
)
controls = (
(0.45, -0.59, 0.0),
(-1.1, -0.47, 0.0),
(0.25, 0.29, 0.0),
(-0.19, -1.1, 0.0),
(-0.25, 1.1, 0.0),
(0.19, -0.75, 0.0),
(0.0, 0.96, 0.0),
(1.1, -0.86, 0.0),
)
# fmt: on
keyframes = [
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyBezier3(control1=controls[0],
control2=controls[1],
to=points[1]),
ngl.PathKeyBezier3(control1=controls[2],
control2=controls[3],
to=points[2]),
ngl.PathKeyBezier3(control1=controls[4],
control2=controls[5],
to=points[3]),
ngl.PathKeyBezier3(control1=controls[6],
control2=controls[7],
to=points[4]),
]
path = ngl.Path(keyframes)
return _path_scene(cfg, path, points, controls)
def simple_bezier(cfg, easing="linear"):
cfg.duration = 2
# fmt: off
points = (
(-0.7, 0.0, 0.0),
(0.8, 0.1, 0.0),
)
controls = (
(-0.2, -0.3, 0.0),
(0.2, 0.8, 0.0),
)
# fmt: on
keyframes = (
ngl.PathKeyMove(to=points[0]),
ngl.PathKeyBezier3(control1=controls[0],
control2=controls[1],
to=points[1]),
)
path = ngl.Path(keyframes)
return _path_scene(cfg, path, points, controls, easing=easing)
def character_ttf(cfg):
"""The 'g' glyph from Noto Sans Black"""
cfg.duration = 5
keyframes = [
# fmt: off
ngl.PathKeyMove(to=(0.375912, 1, 0)),
ngl.PathKeyBezier2(control=(0.483577, 1, 0),
to=(0.550182, 0.972036, 0)),
ngl.PathKeyBezier2(control=(0.616788, 0.944073, 0),
to=(0.657847, 0.902736, 0)),
ngl.PathKeyLine(to=(0.665146, 0.902736, 0)),
ngl.PathKeyLine(to=(0.691606, 0.987842, 0)),
ngl.PathKeyLine(to=(1, 0.987842, 0)),
ngl.PathKeyLine(to=(1, 0.297872, 0)),
ngl.PathKeyBezier2(control=(1, 0.151976, 0),
to=(0.864051, 0.0759878, 0)),
ngl.PathKeyBezier2(control=(0.729015, 0, 0), to=(0.448905, 0, 0)),
ngl.PathKeyBezier2(control=(0.322993, 0, 0),
to=(0.22719, 0.00911854, 0)),
ngl.PathKeyBezier2(control=(0.132299, 0.0176292, 0),
to=(0.044708, 0.0401216, 0)),
ngl.PathKeyLine(to=(0.044708, 0.238298, 0)),
ngl.PathKeyBezier2(control=(0.138686, 0.212158, 0),
to=(0.222628, 0.199392, 0)),
ngl.PathKeyBezier2(control=(0.306569, 0.186018, 0),
to=(0.42792, 0.186018, 0)),
ngl.PathKeyBezier2(control=(0.643248, 0.186018, 0),
to=(0.643248, 0.288146, 0)),
ngl.PathKeyLine(to=(0.643248, 0.300304, 0)),
ngl.PathKeyBezier2(control=(0.643248, 0.33617, 0),
to=(0.654197, 0.386018, 0)),
ngl.PathKeyLine(to=(0.643248, 0.386018, 0)),
ngl.PathKeyBezier2(control=(0.605839, 0.345289, 0),
to=(0.541058, 0.316109, 0)),
ngl.PathKeyBezier2(control=(0.476277, 0.28693, 0),
to=(0.370438, 0.28693, 0)),
ngl.PathKeyBezier2(control=(0.205292, 0.28693, 0),
to=(0.10219, 0.377508, 0)),
ngl.PathKeyBezier2(control=(0, 0.468693, 0), to=(0, 0.642553, 0)),
ngl.PathKeyBezier2(control=(0, 0.817021, 0),
to=(0.104015, 0.908207, 0)),
ngl.PathKeyBezier2(control=(0.208942, 1, 0), to=(0.375912, 1, 0)),
ngl.PathKeyMove(to=(0.510036, 0.815805, 0)),
ngl.PathKeyBezier2(control=(0.362226, 0.815805, 0),
to=(0.362226, 0.638906, 0)),
ngl.PathKeyBezier2(control=(0.362226, 0.549544, 0),
to=(0.399635, 0.51003, 0)),
ngl.PathKeyBezier2(control=(0.437044, 0.471125, 0),
to=(0.515511, 0.471125, 0)),
ngl.PathKeyBezier2(control=(0.601277, 0.471125, 0),
to=(0.635949, 0.507599, 0)),
ngl.PathKeyBezier2(control=(0.67062, 0.544073, 0),
to=(0.67062, 0.617629, 0)),
ngl.PathKeyLine(to=(0.67062, 0.646201, 0)),
ngl.PathKeyBezier2(control=(0.67062, 0.72766, 0),
to=(0.637774, 0.771429, 0)),
ngl.PathKeyBezier2(control=(0.605839, 0.815805, 0),
to=(0.510036, 0.815805, 0)),
# fmt: on
]
path = ngl.Path(keyframes)
return ngl.Scale(_path_scene(cfg, path),
factors=(2, 2, 0),
anchor=(1, 1, 0))
def character_otf(cfg):
"""The 'g' glyph from Adobe Source Code Pro Black"""
cfg.duration = 5
keyframes = [
# fmt: off
ngl.PathKeyMove(to=(0.423713, 0, 0)),
ngl.PathKeyBezier3(control1=(0.775735, 0, 0),
control2=(1, 0.103331, 0),
to=(1, 0.253569, 0)),
ngl.PathKeyBezier3(control1=(1, 0.381373, 0),
control2=(0.856618, 0.434398, 0),
to=(0.608456, 0.434398, 0)),
ngl.PathKeyLine(to=(0.448529, 0.434398, 0)),
ngl.PathKeyBezier3(control1=(0.342831, 0.434398, 0),
control2=(0.301471, 0.445275, 0),
to=(0.301471, 0.476547, 0)),
ngl.PathKeyBezier3(control1=(0.301471, 0.495581, 0),
control2=(0.308824, 0.503739, 0),
to=(0.331801, 0.516655, 0)),
ngl.PathKeyBezier3(control1=(0.376838, 0.509857, 0),
control2=(0.41636, 0.507138, 0),
to=(0.450368, 0.507138, 0)),
ngl.PathKeyBezier3(control1=(0.673713, 0.507138, 0),
control2=(0.847426, 0.573759, 0),
to=(0.847426, 0.738273, 0)),
ngl.PathKeyBezier3(control1=(0.847426, 0.766145, 0),
control2=(0.83364, 0.793338, 0),
to=(0.820772, 0.810333, 0)),
ngl.PathKeyLine(to=(0.98989, 0.810333, 0)),
ngl.PathKeyLine(to=(0.98989, 0.983005, 0)),
ngl.PathKeyLine(to=(0.610294, 0.983005, 0)),
ngl.PathKeyBezier3(control1=(0.5625, 0.993882, 0),
control2=(0.506434, 1, 0),
to=(0.450368, 1, 0)),
ngl.PathKeyBezier3(control1=(0.231618, 1, 0),
control2=(0.0340074, 0.919103, 0),
to=(0.0340074, 0.746431, 0)),
ngl.PathKeyBezier3(control1=(0.0340074, 0.665534, 0),
control2=(0.0900735, 0.601632, 0),
to=(0.161765, 0.568321, 0)),
ngl.PathKeyLine(to=(0.161765, 0.562882, 0)),
ngl.PathKeyBezier3(control1=(0.0965074, 0.528892, 0),
control2=(0.0487132, 0.479266, 0),
to=(0.0487132, 0.431679, 0)),
ngl.PathKeyBezier3(control1=(0.0487132, 0.373215, 0),
control2=(0.0900735, 0.337186, 0),
to=(0.143382, 0.312033, 0)),
ngl.PathKeyLine(to=(0.143382, 0.306594, 0)),
ngl.PathKeyBezier3(control1=(0.0487132, 0.273283, 0),
control2=(0, 0.229776, 0),
to=(0, 0.172672, 0)),
ngl.PathKeyBezier3(control1=(0, 0.0475867, 0),
control2=(0.190257, 0, 0),
to=(0.423713, 0, 0)),
ngl.PathKeyMove(to=(0.450368, 0.648538, 0)),
ngl.PathKeyBezier3(control1=(0.387868, 0.648538, 0),
control2=(0.337316, 0.67981, 0),
to=(0.337316, 0.746431, 0)),
ngl.PathKeyBezier3(control1=(0.337316, 0.810333, 0),
control2=(0.387868, 0.840925, 0),
to=(0.450368, 0.840925, 0)),
ngl.PathKeyBezier3(control1=(0.511949, 0.840925, 0),
control2=(0.565257, 0.810333, 0),
to=(0.565257, 0.746431, 0)),
ngl.PathKeyBezier3(control1=(0.565257, 0.67981, 0),
control2=(0.511949, 0.648538, 0),
to=(0.450368, 0.648538, 0)),
ngl.PathKeyMove(to=(0.474265, 0.147519, 0)),
ngl.PathKeyBezier3(control1=(0.348346, 0.147519, 0),
control2=(0.261949, 0.167233, 0),
to=(0.261949, 0.211421, 0)),
ngl.PathKeyBezier3(control1=(0.261949, 0.231135, 0),
control2=(0.276654, 0.245411, 0),
to=(0.308824, 0.261727, 0)),
ngl.PathKeyBezier3(control1=(0.340993, 0.256288, 0),
control2=(0.378676, 0.253569, 0),
to=(0.452206, 0.253569, 0)),
ngl.PathKeyLine(to=(0.545956, 0.253569, 0)),
ngl.PathKeyBezier3(control1=(0.639706, 0.253569, 0),
control2=(0.693015, 0.248131, 0),
to=(0.693015, 0.211421, 0)),
ngl.PathKeyBezier3(control1=(0.693015, 0.172672, 0),
control2=(0.600184, 0.147519, 0),
to=(0.474265, 0.147519, 0)),
# fmt: on
]
path = ngl.Path(keyframes)
return ngl.Scale(_path_scene(cfg, path),
factors=(2, 2, 0),
anchor=(1, 1, 0))