A custom React Fiber reconciler renderer for regl webGL

by React

react-regl

There is a React Storybook included in the /docs directory with usage examples. The source for the Storybook is in /stories directory and demonstrates how to create the examples.

View Demo Download Source

Install

npm install --save react-regl

Usage

This library is a React wrapper for the Regl library. Visit the Regl gallery page for more ideas on usage.

Define a react-regl component Triangle.js:

Standalone ReglComponents

import React, { Component } from 'react';
import { Draw } from 'react-regl';

class Triangle extends Component {
  render(){
    const {positions, color} = this.props;

    return (
      <Draw vert={triVert}
            frag={triFrag}
            attributes={{
              positions: this.props.positions
            }}
            uniforms={{
              color: this.props.color
            }}
            count={3}
      />
    );
  }
}

    import Regl from 'react-regl';
    import Triangle from './triangle';

    // Import the Regl component and add it into JSX content
    // Add the triangle component as a child of Regl pass it props

    <div>
        <h1>React Regl Example</h1>
        <Regl width={window.innerWidth}
              height={window.innerHeight}
              onFrame={this.onFrameHandler.bind(this)}>
              <Triangle color={[1,1,0.5,1]}
                        positions={[[-0.5, 0],[0, -0.5],[0.25, 1]]} />
        </Regl >
    </div>

Motivation and Goals

This repo, react-regl brings a JSX interface to regl, enabling easy integration of regl UI into existing react projects.

regl is a stateless functional abstraction for WebGl. Regl makes working with WebGL a more productive experience. Its stateless nature makes it easier to reason about WebGL programs. Regl's design was influenced by React. It follows React's unidirectional data flow to stateless component model. This module wraps Regl with a React reconciler for a fuller React experience

Regl vs Other WebGL frameworks

Regl follows the unix philosophy of "small sharp tools" or "do one thing and do it well". Regl has full test coverage and aims for stable non-breaking updates. Other popular WebGL frameworks encompass much more responsiblity, usually including heavy abstractions for: scene graphs, animation systems, input systems, and cross device compatibility. The large amount of responsiblity in these other libraries leads to unstable, breaking releases, and lacking documentation and support.

Development

link the component

cd my-app
npm link ../react-regl

link its copy of React back to the app's React

cd ../react-regl
npm link ../my-app/node_modules/react

GitHub