gl-viewport

toggle between orthographic and perspective projection camera views

example

var shell = require('mesh-viewer')();
var vport = require('gl-viewport')(shell, { viewMode: 'ortho' });

window.addEventListener('keydown', function (ev) {
    if (String.fromCharCode(ev.which) === 'P') {
        var mode = vport.viewMode === 'ortho' ? 'perspective' : 'ortho';
        vport.setViewMode(mode);
    }
});

var mesh;
shell.on('viewer-init', function () {
    mesh = shell.createMesh(require('bunny'));
    shell.camera.distance = 10;
    shell.camera.center = [ 0, 5, 0 ];
});

shell.on('gl-render', function () {
    vport.draw(mesh);
});

Run this demo on requirebin.

methods

var viewport = require('gl-viewport')

var vport = viewport(shell, opts)

Create a viewport instance vport from a game-shell shell.

Set the view mode with opts.viewMode. Either 'perspective' or 'ortho'. Default: 'ortho'.

You can also set the initial opts.view and opts.projection matricies.

vport.setViewMode(mode)

Change the view mode: 'ortho' and 'perspective' are supported.

vport.draw(mesh)

Draw mesh with the viewport projection and view matrix.

install

With npm do:

npm install gl-viewport

license

MIT