是否有一种简单的方法可以从 3D 点上划出一条线, 在这个情况下,是 0, 0, 0, 向屏幕中心划出一条线?
您可以使用"http://lwjgl.org/javadoc/org/lwjgl/ util/glu/Project.html" rel=“nofollow”>gluunproject 来解析屏幕中心的 3D 坐标( 在给定深度), 然后在两个 3D 点之间划线 。
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