v21’s gists

v21 / unity-analytics

Created April 6, 2011 10:50

What Unity sent to Google Analytics

	GET /__utm.gif?utmwv=1.3&utmn=1102687404&utmcs=ISO-8859-1&utmsr=1920x1080&utmsc=24-bit&utmul=en&utmje=0&utmfl=-&utmdt=Unity%20Editor&utmhn=editor%2Eanalytics%2Eunity3d%2Ecom&utmr=%2D&utmt=event&utme=5%28Compiler%2Aerror%20CS0619%2A%60UnityEngine%2EAudioSource%2ErolloffFactor%27%20is%20obsolete%3A%20%60rolloffFactor%20is%20not%20supported%20anymore%2E%20Use%20min%2D%2C%20maxDistance%20and%20rolloffMode%20instead%2E%27%29%281%29%3A&utmac=UA-16068464-6&utmcc=__utma%3D1.1790855761.1301922981.1302003006.1302086526.8%3B%2B__utmz%3D1.1302086526.8.1.utmccn%3D(direct)%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)%3B%2B HTTP/1.1
	User-Agent: UnityEditor/3.3.0.63135 (Macintosh; U; Intel Mac OS X 10.6; en)
	Host: www.google-analytics.com
	Accept: /

v21 / gist:5377854

Created April 13, 2013 10:20

> Okay. Maths is beyond me, so: I want to get a tangental line to a 3D line at a random angle & random point along it, of a random length.How? Like this:

	Vector3 randomVector = Random.onUnitSphere;

	Plane plane = new Plane(randomVector, start, end);

	float breakPoint = Random.value;

	Vector3 candidatePoint = plane.normal * Random.value * maxBreakDistanceFromPath + (end - start) * breakPoint + start;

	return candidatePoint;

v21 / gist:5378391

Created April 13, 2013 13:23

A script to get a random point on a mesh, for Unity3D

	using UnityEngine;
	using System.Collections;
	using System.Collections.Generic;

	public class RandomPointOnMesh : MonoBehaviour
	{
	public MeshCollider lookupCollider;

	public bool bangGetPoint;
	private Vector3 randomPoint;

v21 / gist:7827173

Created December 6, 2013 16:01


	Vector3 parallaxCenter = background.parallaxCenter.position;
	Vector3 mainOffset = mainCamera.position - parallaxCenter;

	cam1.position = parallaxCenter + Vector3.Scale(mainOffset, cam1Factor);

	(Scale is component-wise multiplication)

v21 / gist:8029204

Created December 18, 2013 20:16

An implementation of Photoshop's "Screen" blend mode for Unity3D.

	Shader "Sunspots" {
	Properties {
	_MainTex ("Texture1 (RGB)", 2D) = "white" {}
	_Color ("Main Color", Color) = (1,1,1,1)
	}

	Category {
	Tags {"RenderType"="Opaque" "Queue"="Transparent"}
	Lighting Off
	BindChannels {

v21 / MakeGif.cs

Created December 24, 2013 11:36

Unity3D editor script to run the game and extract a set number of images and save them to a file. Put this code into a file called MakeGif.cs inside a folder called "Editor"

	using System;
	using UnityEditor;
	using UnityEngine;
	using System.Collections;

	public class MakeGif : EditorWindow {


	public string folder = "ScreenshotFolder";
	public int frameRate = 25;

v21 / gist:8370964

Created January 11, 2014 13:29

	take a file.gif


	gifsicle.exe -b -O3 file.gif

	"C:\Program Files (x86)\IrfanView\i_view32.exe" file.gif /extract=("\extracted",gif)

	gifsicle.exe extracted/file_frame_*.gif > file.gif

v21 / DontDestroyOnLoad.cs

Created February 25, 2014 22:58

	using UnityEngine;
	using System.Collections;
	using System.Collections.Generic;

	public class DontDestroyOnLoad : MonoBehaviour {
	void OnEnable()
	{
	DontDestroyOnLoad(gameObject);
	}
	}

v21 / Extensions.cs

Created May 20, 2014 10:52

List extensions in c#

	using System.Linq;
	using UnityEngine;
	using System;
	using System.Collections.Generic;
	using Debug = UnityEngine.Debug;
	using Object = UnityEngine.Object;
	using Random = UnityEngine.Random;

	public static class Extensions
	{

v21 / gist:5f3ea035cc0c349f8d1a

Created June 3, 2014 13:31

RGB to HSV and vice versa (in shaders)


	float3 Hue(float H)
	{
	float R = abs(H * 6 - 3) - 1;
	float G = 2 - abs(H * 6 - 2);
	float B = 2 - abs(H * 6 - 4);
	return saturate(float3(R,G,B));
	}

	float3 HSVtoRGB(in float3 HSV)

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