添加格點(diǎn)
光源，先建立了一個圓柱，把格點(diǎn)光源的起始點(diǎn)定義在圓柱的中心，
}vL [N~5\ 并讓光打在球面上的一個點(diǎn)，準(zhǔn)備觀察其反射
光束，怎么出現(xiàn)下面的警告，對
仿真有影響嗎？
-H]svOX Warning: Possibly defective Sphere 1 is being added to the raytrace.
rF5<x3 Warning: Possibly defective Cylinder 1 is being added to the raytrace.
|k^X!C
