您可以在这里找到的最小解决方案:https : //jsfiddle.net/mmalex/sqg0d8vx/
var animate = function() {
requestAnimationFrame(animate);
renderer.autoClear = true;
//render scene1
renderer.render(scene1, camera);
//prevent canvas from being erased with next .render call
renderer.autoClear = false;
//just render scene2 on top of scene1
renderer.render(scene2, camera);
};
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