sketchpunk’s gists

sketchpunk / jacobian.js

Last active May 31, 2022 19:42

	jntCount = ChainPose.count;
	angles[] = new Array( jntCount ).fill( 0 )

	loop
	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Get world space transform (pos,rot,scl) of each bone in the chain
	// Then preallocate space for the jacobian matrix
	transforms[] = compute_WorldSpace_Transforms( ChainPose );
	jacobian = Array( transforms.length * 3 * 3 ); // Each Joint gets 3 floats for 3 axes

sketchpunk / DynamicWorker.js

Last active February 6, 2023 22:51

Various Web Worker Wrappers

	/*
	const fnWorker = ( evt )=>{
	const data = evt.data;
	fnCreateVert( data );
	};

	async function fnCreateVert( y ){
	const vert = new Float32Array( [0,y,0] );
	console.log( 'Elevation Request', y, vert );
	console.log( 'Size before post', vert.byteLength );

sketchpunk / _notes.txt

Created August 11, 2021 16:50

VSCode : Build Task with ctrl+shift+b

	Create a folder called .vscode at the root of the project, add this file to it.
	ctrl+shift-b will rust the quickstart script.

	If you run the shortcut again, it will prompt you to terminate or restart the task. You will need to use a mouse to select the options.

	----------
	::FUTURE::

	https://github.com/microsoft/vscode/pull/117129
	instancePolicy doesn't work yet. Waiting on review/merge.

sketchpunk / StateProxy.js

Created June 30, 2021 21:13

StateProxy.js

	/*
	let myData = { woot:0 };

	let state = StateProxy.new( myData );
	state.$.dynamicProperties = false;
	state.$
	.converter( "woot", "int" )
	.on( "wootChange", (e)=>{ console.log( "wootChange", e.detail ) } );

	state.woot = "500.5"; // Converter will change data to int( 500 )

sketchpunk / frag_shader.c

Created May 19, 2021 22:14

Rotation Widget Design GLSL

sketchpunk / iterators.js

Created February 11, 2021 17:09

Javascript Iterators

	// DEFAULT CLASS ITERATOR
	[Symbol.iterator](){
	let n = this.head;
	let result = { value:null, done:false };

	return { next:()=>{
	if( !n ) result.done = true;
	else{
	result.value = n.value;
	n = n.next;

sketchpunk / Vec3_90d_Rotations.js

Created January 24, 2021 01:28

Rotate 3D Vertices by 90 degree increments without the need of Trig, Quaternions or Matrices

	class VRot90{
	// #region SINGLE AXIS ROTATION
	static xp( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = x; o[1] = -z; o[2] = y; return o; } // x-zy rot x+90
	static xn( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = x; o[1] = z; o[2] = -y; return o; } // xz-y rot x-90

	static yp( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = -z; o[1] = y; o[2] = x; return o; } // -zyx rot y+90
	static yn( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = z; o[1] = y; o[2] = -x; return o; } // zy-x rot y-90

	static zp( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = y; o[1] = -x; o[2] = z; return o; } // y-xz rot z+90
	static zn( v, o ){ let x = v[0], y = v[1], z = v[2]; o[0] = -y; o[1] = x; o[2] = z; return o; } // -yxz rot z-90

sketchpunk / TriMesh.js

Created January 12, 2021 18:49

TriMesh

sketchpunk / QuadTreeID.html

Created January 7, 2021 20:59

Quad Tree Node ID

	<html>
	<script>

	window.onload = function(){
	let qID = 0;

	qID = QuadTreeID.set( qID, 2, QuadTreeID.A );
	qID = QuadTreeID.set( qID, 0, QuadTreeID.C );
	qID = QuadTreeID.set( qID, 3, QuadTreeID.D );
	qID = QuadTreeID.set( qID, 1, QuadTreeID.B );

sketchpunk / RowSets.java

Last active July 29, 2020 21:59

JSON Format CachedRowSet : Array Of Structs, Array Of Arrays and Struct Of Arrays

	package dao;

	import java.sql.ResultSetMetaData;
	import java.sql.SQLException;
	import java.sql.Types;
	import java.text.SimpleDateFormat;
	import javax.json.Json;
	import javax.sql.rowset.CachedRowSet;

	public class RowSets {

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