在计算-太阳轨迹图-计算遮挡-计算选项中的包括表面的两个面,按我理解,应该指一个物体的正反面,但是显示测试点后发现,如果选中这项,计算怎么会在整个区域的全部实体表面上进行呢?这一项到底是个什么意思?有什么作用?没看懂!Check Both Sides of SurfaceUse this option to have shading calculated for both sides of the surface not just in the direction of the surface normal. The shading calculations will take slightly longer, however shading values on the opposite side to the surface normal will b.