p0 | 第一个角的顶点。 |
p1 | 第二个角的顶点。 |
p2 | 第三个角的顶点。 |
p3 | 第四个角的顶点。 |
在设备空间中输出四个点,表示平面的四个角。这些角按顺时针排序。
“顺时针”绕组意味着平面的四个顶点 p2
、p2
、p2
和 p3
围绕平面中心顺时针旋转。从顶点以此顺序出现的视角查看平面将被视为平面的“正面”。差乘 Vector3.Cross(p1-p0、p3-p0)
将与 BoundedPlane.Normal 的方向相同。
Mesh也使用顺时针绕组。
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