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hjsd:柱面发光体: DEmU},<S 取消前表面和侧面发光属性,让光从后表面发出,方向设为outward意思是外法线方向发光。 2<18j 将发光角度定为:upper 0 lower 0 `tmd' 如图 (2008-09-16 13:13) !3]}3jZ.
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