通过修改scenceview.js中tileBackground和defaultTileBackground中的png的base64编码就可以达到要求。
4.8中通过修改scenceview.js
e.DEFAULT_TILE_BACKGROUND = typeof dojoconfig!=undefined &&dojoconfig.bg!=undefined?dojoconfig.bg:"原来的base64"
在html中引用init.js前
<script >
var dojoconfig={bg:"data:image/png;base64,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"}
</script>
传入图片base64编码，这样三维球就可以按照我们想要的颜色渲染，图片分辨率最好是标准的2x2 4x4 8x8 16x16 32x32 64x64 128x128 256x256。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<canvas id="myCanvas" width="256" height="256" style="border:1px solid #032832;">
您的浏览器不支持 HTML5 canvas 标签。
</canvas>
<script>
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
//ctx.fillStyle="#032832";
ctx.fillStyle="#032832";
ctx.fillRect(0,0,256,256);
var dataURL =c.toDataURL();
console.log(dataURL);
</script>
</body>
</html>
</script>