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看了help里面的说明,如下: oj1,DU
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A candela plot is a plot of luminous intensity, or flux per solid angle. In photometric units, a luminous intensity plot is in units of candelas, or lumens per steradian. In radiometric units, the corresponding quantity is called intensity, and has units of watt/steradian. Candela plots are commonly used in the design of illumination systems. R2[-Q"|Ra
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但还是不懂,它跟Irradiance/Illuminence maps有什么区别呢? &