Area Shadow問題

[CTW]

用VRay Rend圖時，主光用VRay Shadow，再選埋Area Shadow，調整U、V、W size時，U size就有反應，其它兩個就好像無反應，請問造效果圖時是否祇需調整U size呢？而另外兩個有什麼作用呢？

[sobig]

yes, u r right.
VW sizes are no affect to "Sphere" and "Clinder" area shadow.
you can only adjust U size for those two area shadows.

however, UVW sizes have effect to "Box" area shadow.
UVW is like XYZ coordinator in the real world.
you can control the shape of box area shadow by UVW sizes.
let's say, U size can make the shadow thiner/thicker...and VW sizes and so on.

u can play around with it.