andy Wang napsal(a):
>    @@@(light source)
>      \        \
>       \        \
>      [======] a \
>         \        \
>          \        \
>      [========]b [========]c
>            \        \
>             \        \
>              \        \
>               \        \
>                \        \
>                 \        \
>                  @@@ (camera)
> 
> as shown in the figure,planes b and c are shaded.my question is how to different
> the b and c planes at the pov's result image.
> Thanks a lot!
> 
> 
try using double_illuminate if that's your question.

-- 
You know you've been raytracing too long when...
you ever saw a beautiful scenery and regretted not to take your 6" 
reflective ball and a digital camera, thinking "this would have been a 
perfect light probe"
		-Johnny D
Johnny D

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