| <?php | |
| /* | |
| Convert RAW images to JPG. Actually whatever you want as long as these formats are supported by ImageMagick. | |
| https://www.imagemagick.org/script/formats.php | |
| Best used in a terminal to avoid Apache's timeout :) | |
| ex : php raw_to_jpg.php | |
| Folder tree |
| ffmpeg -framerate 25 -y -start_number 1 -i %04d.png -pass 1 -c:v libvpx-vp9 \ | |
| -b:v 1800k -maxrate 2000k -minrate 1200k \ | |
| -deadline best -cpu-used 0 \ | |
| -auto-alt-ref 1 -lag-in-frames 25 \ | |
| -f webm /dev/null | |
| ffmpeg -framerate 25 -start_number 1 -i %04d.png -pass 2 -c:v libvpx-vp9 \ | |
| -b:v 1800k -maxrate 2000k -minrate 1200k \ | |
| -deadline best -cpu-used 0 \ | |
| -auto-alt-ref 1 -lag-in-frames 25 \ | |
| output.webm |
Please consider using http://lygia.xyz instead of copy/pasting this functions. It expand suport for voronoi, voronoise, fbm, noise, worley, noise, derivatives and much more, through simple file dependencies. Take a look to https://github.com/patriciogonzalezvivo/lygia/tree/main/generative
float rand(float n){return fract(sin(n) * 43758.5453123);}
float noise(float p){
float fl = floor(p);
float fc = fract(p);