Away3D 3.6 MovieMaterial 可能存在错误；当 Interactive=true 时，二维叠加出现在模型上
我在 Away3D 3.6 中遇到了 MovieMaterial.as 的特殊问题。
我有一个 3D 地球仪，上面有可点击的白色热点（见下图）。当我在以下代码中将交互设置为“true”时，当我将鼠标移到地球表面上时，MovieMaterial 的 2D 副本将突然出现（请参见底部的图像）。当我移动鼠标时，这个 2D 图像也会移动。
_hotspotGlobeMaterial = new MovieMaterial( _hotspotSprite, { interactive: true, smooth: true, transparent: true } );
_hotspotGlobe.material = _hotspotGlobeMaterial;
http://grandinteractive.com/misc/GlobeWithHotspots.png
这里的 2D 问题：
您将还注意到白色/透明区域颠倒了。
I am having a peculiar issue with MovieMaterial.as in Away3D 3.6.
I have a 3D globe with clickable, white hotspots on it (see image below). When I set interactive to 'true' in the following code, when I move my mouse over the globe's surface, a 2D copy of the MovieMaterial will suddenly appear (see image at bottom). This 2D image will move when I move my mouse too.
_hotspotGlobeMaterial = new MovieMaterial( _hotspotSprite, { interactive: true, smooth: true, transparent: true } );
_hotspotGlobe.material = _hotspotGlobeMaterial;
http://grandinteractive.com/misc/GlobeWithHotspots.png
The 2D issue here:
You'll also noticed that the white / transparent areas are reversed.
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Away3D 3.6 创建一个不可见的精灵，出现在您的 3D 对象上。 3D 精灵包含的是 MovieMaterial 的副本，它基本上是作为使子项可点击的一种手段。聪明的！
它在我的例子中显示的原因是因为我在代码中的很多地方设置了blendMode = BlendMode.LAYER，从而使不可见的精灵可见。谁会想到呢？
Away3D 3.6 creates an invisible Sprite that appears over your 3D object. The 3D sprite contains is a copy of your MovieMaterial and it basically operates as a means of making the children clickable. Clever!
The reason that it was showing in my case was because I had set blendMode = BlendMode.LAYER in a bunch of places in my code, thus making the invisible sprite visible. Who would have thought?