ivanpopelyshev’s gists

ivanpopelyshev / index.html

Created July 30, 2012 22:21

A web page created at CodePen.io.

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">

	<title>Canvas Pony · CodePen</title>
	<!--
	Copyright (c) 2012 ivanpopelyshev, http://codepen.io/ivanpopelyshev

	Permission is hereby granted, free of charge, to any person obtaining

ivanpopelyshev / MiniRunner.ts

Created June 8, 2017 16:12

pixi mini runner in typescript

ivanpopelyshev / pixi-tween-ticker-hack.js

Created August 4, 2017 12:26

Possible solution for GSAP/tweenlite and pixi integration

	PIXI.Ticker.prototype._requestIfNeeded = function()
	{
	if (!this.gsapTick) {
	//do a research, where is the passed time

	this.lastTime = performance.now();
	this.gsapTick = (event) => { this.update(MILLISECONDS_PASSED_IN_EVENT_I_DONT_KNOW) };
	//do a research how to call it after all the other listeners
	TweenLite.ticker.addEventListener("tick", this.gsapTick);
	}

ivanpopelyshev / bilinear_fix.glsl

Last active December 11, 2017 12:36

Fix for https://www.shadertoy.com/view/lsBSDm

	vec2 invBilinear( in vec2 p, in vec2 a, in vec2 b, in vec2 c, in vec2 d )
	{
	vec2 e = b-a;
	vec2 f = d-a;
	vec2 g = a-b+c-d;
	vec2 h = p-a;

	float k2 = cross2d( g, f );
	float k1 = cross2d( e, f ) + cross2d( h, g );
	float k0 = cross2d( h, e );

ivanpopelyshev / gist:6128a6b31f1a7f51d536b369a3812ecf

Created March 20, 2019 11:30

WIP Pixi v5 Gradient

	export const enum GradientInterpolationMethod {
	RGB = 0,
	LinearRGB = 1
	}

	function toSRGB(x: number) {
	if (x < 0.00313080) {
	return x * 12.92;
	}
	return Math.pow(x, 1.0 / 2.4) * 1.055 - 0.055;

ivanpopelyshev / Canvas2DSurface.js

Last active March 20, 2019 13:50

Shumway + WebGL partial texture upload

	// Its a custom renderer, pixi fork, it'll be easy to port on vanilla v5
	// Careful: Method names differ from V5. Find appropriate fields.

	export class Canvas2DSurface implements ISurface, gobi.core.ITextureResource {
	width: number;
	height: number;
	canvas: HTMLCanvasElement;
	context: CanvasRenderingContext2D;
	private _regionAllocator: RegionAllocator.IRegionAllocator;

ivanpopelyshev / shape.ts

Last active March 31, 2019 11:41

Faster SegmentedPath for Shumway

	import PathCommand = Shumway.PathCommand;
	import GradientType = Shumway.GradientType;
	import GradientSpreadMethod = Shumway.GradientSpreadMethod;
	import GradientInterpolationMethod = Shumway.GradientInterpolationMethod;
	import Bounds = Shumway.Bounds;
	import DataBuffer = Shumway.ArrayUtilities.DataBuffer;
	import ShapeData = Shumway.ShapeData;
	import ShapeMatrix = Shumway.ShapeMatrix;
	import clamp = Shumway.NumberUtilities.clamp;
	import assert = Shumway.Debug.assert;

ivanpopelyshev / index.js

Last active April 1, 2019 21:18

Old Live2d plugin demo

ivanpopelyshev / Progress.ts

Created December 6, 2019 12:57

Progress mask

	import { Graphics } from "pixi.js";

	const angles = [];
	export class Progress extends Graphics {
	_color: number;
	_tWidth: number;
	_tHeight: number;
	_progress: number;
	public invert: boolean = false;

ivanpopelyshev / BlitterRenderState.ts

Last active May 28, 2020 15:53

	export class BlitterRenderState implements core.IPreRenderState {
	constructor(public cache: RuntimeCache) {
	}

	visit(node: Node) {
	const vs = node.rendererObject as pixi.VectorSprite;
	if (vs && vs.model) {
	// && vs.model.preferredCache === pixi.CacheType.RuntimeWebGL ?
	this.cache.foundVectors.push(vs);
	}

Ivan Popelyshev ivanpopelyshev