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nicolas barradeau nicoptere

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nicoptere / barrier-grid.py
Last active January 5, 2022 18:05
import os
import cv2
import numpy as np
folder = "./cat/"
files = os.listdir(folder)
files.sort( )
dst = np.ones( (143,143), np.float )
for i, (f) in enumerate( files ):
img = cv2.imread(folder + f, cv2.IMREAD_UNCHANGED)
img = cv2.cvtColor( img, cv2.COLOR_BGR2GRAY )
@nicoptere
nicoptere / atlas.py
Last active October 21, 2021 07:32
atlas maker + rgb packer
import os
import argparse
import cv2
import numpy as np
from tqdm import tqdm
from math import ceil, sqrt
def atlasFromFolder( name, src, dst, tile, packChannels, quality ):
if src[:-1] != "/":
@nicoptere
nicoptere / Instances.js
Last active February 24, 2021 14:44
create InstancedGeometries from GLTF
import {
BufferAttribute,
Group,
InstancedBufferAttribute,
InstancedBufferGeometry,
Mesh,
MeshStandardMaterial,
Vector3,
} from "three";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader.js";
@nicoptere
nicoptere / moebius 3D GLSL (for three.js)
Created August 11, 2020 09:28
port of Daniel Piker's transform to GLSL port of https://gist.github.com/Dan-Piker/f7d790b3967d41bff8b0291f4cf7bd9e
/**
original code https://gist.github.com/Dan-Piker/f7d790b3967d41bff8b0291f4cf7bd9e
need to declare the following:
uniform vec3 origin;
uniform float p;
uniform float q;
uniform float t;
*/
@nicoptere
nicoptere / remove small paths in illustrator
Last active May 30, 2018 20:59
this will remove illustrator paths under a given length ( to clean up smaller paths basically )
#target illustrator
var document = app.activeDocument;
var maxLength = prompt ("maximum length of a path", 10, "destroy them with lasers!");
for (i=0 ; i< document.pathItems.length; i++)
{
var ipath = document.pathItems[i]
if( ipath.hidden == true )continue;
var l = 0;
for( var j = 0; j < ipath.pathPoints.length - 1; j++ ){
var p0 = ipath.pathPoints[j].anchor;
@nicoptere
nicoptere / affine transform
Created July 19, 2017 12:52
//from https://math.stackexchange.com/questions/296794/finding-the-transform-matrix-from-4-projected-points-with-javascript/339033#339033
// and http://jsfiddle.net/dFrHS/1/
function adj(m) { // Compute the adjugate of m
return [
m[4]*m[8]-m[5]*m[7], m[2]*m[7]-m[1]*m[8], m[1]*m[5]-m[2]*m[4],
m[5]*m[6]-m[3]*m[8], m[0]*m[8]-m[2]*m[6], m[2]*m[3]-m[0]*m[5],
m[3]*m[7]-m[4]*m[6], m[1]*m[6]-m[0]*m[7], m[0]*m[4]-m[1]*m[3]
];
}
@nicoptere
nicoptere / toOBJ
Created April 14, 2017 15:06
converts a THREE.geometry to OBJ
var str = "# object mesh \n";
g.toIndexed();
var vs = g.getAttribute("position").array;
var ind = g.getIndex().array;
var precision = 6;
for( var i = 0 ; i < vs.length; i+=3 ){
@nicoptere
nicoptere / Object3D.js
Created July 5, 2016 09:33
object3d CSS
/**
* Created by nico on 19/02/14.
*/
var Object3d = function( node, position, rotation )
{
this.node = node;
this.parent = null;
@nicoptere
nicoptere / gist:abe6cabf590158c885ecce0768cee41c
Created June 28, 2016 15:22
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>postmortem</title>
<style>
html, body{
width:100%;
height:100%;
overflow: hidden;
@nicoptere
nicoptere / mixer
Created June 15, 2016 09:12
texture mixer
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>MIXER</title>
<style>
head, body{
width:100%;
height:100%;
overflow: hidden;