Tearing down the scene to investigate render time problems.

Trace time on this pass was something over 14h, stats are attached below.

I would have expected it to render faster with just one thread per core, 
but that doesn't seem to be the case.  This render used 48 threads.

I'm using Radiosity_IndoorHQ from rad_def.inc with one small(ish) 
alteration.  Since there aren't any light sources, I bumped the count up 
to 160k and set a default importance of .001 with the emitting objects 
having an importance of 1.

one problem area seems to be the tiles.  I only have one patch of tiles 
in this render (the smallest one).

As I said in the other thread, the tiles are modeled as a single prism. 
   Might it be more efficient to model them as a union of prisms?

Regards,
A.D.B.

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Attachments:
Download 'csgtest.png' (192 KB) Download 'stats.txt' (9 KB)

Preview of image 'csgtest.png'