I need to get the current step number while rendering a volume object
the step used for sampling the volume :
something like in light path node " transparent depth , ray depth "
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$\begingroup$ could be something like Ray depth x step size $\endgroup$– BithurFeb 13, 2015 at 19:35
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$\begingroup$ @Bithur it seems not, i think ray depth is not increasing inside the volume $\endgroup$– ChebhouFeb 13, 2015 at 20:23
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$\begingroup$ yep, wasn't sure about that but didn't find anything else :( $\endgroup$– BithurFeb 13, 2015 at 20:24
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1 Answer
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In short, no. This isn't currently exposed to the user.
The Transparent Depth value is a count of each transparent object, not distance traveled within it.
There is a Ray Depth output, but it's unclear what that does.
There is a Ray Length output, but it doesn't increase inside a volume. It's measured after the sample is taken.
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