flutter gl

flutter gl can call opengl es api with dart

support ios,android,web

opengl es api

now the api is similar to webgl

how to use

now this is only support draw to fbo. then share the fbo texture to native side.

import

import 'package:flutter_gl/flutter_gl.dart';

usage

int width = 200;
int height = 200;
num dpr = 1.0;

flutterglplugin = flutterglplugin(width, height, dpr: dpr);

map<string, dynamic> _options = {
    "antialias": true,
    "alpha": false
};    
await flutterglplugin.initialize(options: _options);

// on web this need called after web canvas dom was added to document
await flutterglplugin.preparecontext();

// you can get gl by
gl = flutterglplugin.gl;

// then you can call opengl es api by gl like
gl.clearcolor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.color_buffer_bit);

// use this method to notify flutter update texture widget
// sourcetextue is a texture which bind to fbo framebuffer
flutterglplugin.updatetexture(sourcetexture);

run examples

download or download this repo

cd flutter_gl/flutter_gl/example

flutter run

screenshot