mfirmin

// This function converts a Float16 stored as the bits of a Uint16 into a Javascript Number.
// Adapted from: https://gist.github.com/martinkallman/5049614
// input is a Uint16 (eg, new Uint16Array([value])[0])

function float16ToNumber(input) {
    // Create a 32 bit DataView to store the input
    const arr = new ArrayBuffer(4);
    const dv = new DataView(arr);

    // Set the Float16 into the last 16 bits of the dataview

mfirmin

# This script triangulates each .obj file in the input directory
# using Blender's Python API (https://docs.blender.org/api/current/index.html)
# It assumes that that the input/ and output/ directories exist
# Run with `blender --background --python triangulate.py`
# Tested with Blender 2.81

# Note: Before running, make sure the default scene is empty by opening Blender, 
# selecting and deleting everything (light, camera, & cube), 
# and selecting File -> defaults -> Save startup file

mfirmin

ffmpeg -y -i input_file.mp4 -c:v libx264 -c:a aac -strict experimental -tune fastdecode -pix_fmt yuv420p -b:a 192k -ar 48000 output_file.mp4

mfirmin

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
}

mfirmin

ffmpeg -i input.mp4 -vf "fps=10,scale=720:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop 0 output.gif