Can multiple WebGLRenderers render the same scene?

Question

Is it possible to use two instances of WebGLRenderer, using two Canvass to render the same scene?

var renderer = new THREE.WebGLRenderer({
    canvas: canvas1
});
renderer.setSize(100,100);
var renderer2 = new THREE.WebGLRenderer({
    canvas: canvas2
});
renderer2.setSize(100,100);
var mesh = new THREE.Mesh(
    new THREE.BoxGeometry(100,100,100)
);
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera();
camera.position.z = 500;
scene.add(mesh);

function draw(){ 
    //try commenting the first render out
    //it will allow the other renderer to draw
    renderer.render(scene,camera); 
    renderer2.render(scene,camera);
    requestAnimationFrame(draw);
}
draw();

In this fiddle, when I do as above, I can only render on one canvas at a given time. http://jsfiddle.net/ehsanziya/sbdogbLw/1/

Seems like it's not possible - you must have two scenes (and two meshes): http://jsfiddle.net/sbdogbLw/2/ — Shomz, Dec 23 '14 at 00:40

score 1 · Answer 1 · edited May 23 '17 at 12:30

1

No but you can do a solution using viewports like this or viewport and scissor settings like this.

Note I didn't post the code to the first one because it's an uncommon solution. I didn't post the code to the second one because it's already on stack overflow.

edited May 23 '17 at 12:30

Community

1
1

answered Nov 29 '15 at 04:07

gman

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Can multiple WebGLRenderers render the same scene?

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