小编Def*_*iti的帖子

var gridCanvas = document.getElementById('gridcanvas');
			var ctx = gridCanvas.getContext('2d');
			ctx.beginPath();
			for(var x=0.5; x<gridCanvas.width; x+=20) {
			    ctx.moveTo(x, 0);
			    ctx.lineTo(x, gridCanvas.height);
			}
			for(var y=0.5; y<gridCanvas.height; y+=20) {
			    ctx.moveTo(0, y);
			    ctx.lineTo(gridCanvas.width, y);
			}

			ctx.strokeStyle = 'lightgrey';
			ctx.stroke();

			var container = document.getElementById( '3dcontainer' );
			var aspect = 400 / 400;
			var viewHeight = 400;
			var viewWidth = viewHeight * aspect;
			var scene = new THREE.Scene();
			var camera = new THREE.OrthographicCamera(
			    viewWidth / - 2, viewWidth / 2, viewHeight / …