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@kig
kig / workcrew.js
Created September 2, 2011 11:03
WorkCrew - a WebWorker work queue library
/*
WorkCrew - a WebWorker work queue library
Usage:
// Create an 8 worker pool using worker.js.
var crew = new WorkCrew('worker.js', 8);
// Do something whenever a job is completed.
// The result object structure is
@christophermanning
christophermanning / README.mkd
Last active August 28, 2023 00:46
Hamiltonian Graph Builder
<style type="text/css">p {text-align:center;width: auto}</style>

Created by Christopher Manning

Gallery

Axle Eight Fibbobaci Florets [![Star]

@soffes
soffes / GPUImageTextureInput+CIImage.h
Last active February 26, 2023 14:02
GPUImage + Core Image
//
// GPUImageTextureInput+CIImage.h
// GPUImage
//
// Created by Sam Soffes on 3/4/14.
// Copyright (c) 2014 Sam Soffes. All rights reserved.
//
#import "GPUImageTextureInput.h"
@5sw
5sw / View.m
Last active February 16, 2018 03:35
UIView subclass that renders a SceneKit scene using SCNRenderer
#import <UIKit/UIKit.h>
#import <SceneKit/SceneKit.h>
#import <OpenGLES/ES2/gl.h>
#import <OpenGLES/ES2/glext.h>
@interface View : UIView
@property (strong, nonatomic) SCNScene *scene;
- (void)renderFrame;
@armadsen
armadsen / SceneKitCheatSheet.m
Last active October 28, 2021 08:06
Cheat sheet for SceneKit learning app (Objective-C)
// Configure the Scene View
self.sceneView.backgroundColor = [UIColor darkGrayColor];
// Create the scene
SCNScene *scene = [SCNScene scene];
@twostraws
twostraws / Simple Scrolling UIStackView
Created June 10, 2015 19:06
//
// SimpleScrollingStack.swift
// A super-simple demo of a scrolling UIStackView in iOS 9
//
// Created by Paul Hudson on 10/06/2015.
// Learn Swift at www.hackingwithswift.com
// @twostraws
//
import UIKit
@hamzasood
hamzasood / gist:02e6e87835a17f4e1b9e
Created November 23, 2015 23:15
Apple Pencil 3D Touch
#import <UIKit/UIKit.h>
#import <objc/runtime.h>
// Hook with ObjC runtime functions
%config(generator=internal)
// New methods created below
@interface UIGestureRecognizer ()
+ (void)hs_beginForcingAllNewGestureRecognizersToAllowPencilInput;
+ (void)hs_endForcingAllNewGestureRecognizersToAllowPencilInput;
@egoist-sx
egoist-sx / Related function
Created March 22, 2016 15:19
@letmaik
letmaik / index.html
Created October 7, 2016 10:07
Leaflet GridLayer example with Canvas
<!DOCTYPE html>
<html>
<head>
<title>GridLayer Test</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.1/dist/leaflet.css" />
<style>
body {
padding: 0;
margin: 0;
@kovrov
kovrov / linear-depth-in-glsl-for-real.md
Created January 10, 2017 05:43
http://olivers.posterous.com/linear-depth-in-glsl-for-real

Real depth in OpenGL / GLSL

http://olivers.posterous.com/linear-depth-in-glsl-for-real

So, many places will give you clues how to get linear depth from the OpenGL depth buffer, or visualise it, or other things. This, however, is what I believe to be the definitive answer:

This link http://www.songho.ca/opengl/gl_projectionmatrix.html gives a good run-down of the projection matrix, and the link between eye-space Z (z_e below) and normalised device coordinates (NDC) Z (z_n below). From there, we have

A   = -(zFar + zNear) / (zFar - zNear);

B = -2zFarzNear / (zFar - zNear);