sp94

ffmpeg -filter_complex loop=loop=3:size=200:start=0 -framerate 50 -pattern_type glob -i 'f*.png' \
  -c:v libx264 -crf 18 -r 50 -pix_fmt yuv420p output_insta.mp4

sp94

# An example of calculating Berry curvature using wilson_eigen in Peacock v0.1.1
# this will be wrapped into an easier to use function in Peacock v0.2

using Peacock, Peacock.Zoo, Parameters, PyPlot

# Load example crystal
@unpack solver, polarisation = make_wu_topo(7)

# In this example we will calculate the Berry curvature at Gamma
# so lets use a small(ish) Wilson loop around Gamma

sp94

# create high quality temporary GIF with imagemagick
# delay is duration of frame in 1/100ths of a second, ie "-delay 2" is 50 frames/second
convert -delay 2 -loop 0 f*.png temp.gif

# create a more reasonably sized output with gifsicle
# increase "--lossy=" to reduce file size
gifsicle --loop=0 --lossy=100 temp.gif -o output.gif

sp94

// Modified from @beesandbombs template

int[][] result;
float t, c;

float ease(float p) {
  return 3*p*p - 2*p*p*p;
}

float ease(float p, float g) {

sp94

// Double Spiral
// https://twitter.com/sjpalmer1994/status/1337815101148164101

int[][] result;
float t, c;

float ease(float p) {
  return 3*p*p - 2*p*p*p;
}