Hello everybody,

when I use am3 (stochastic anti-aliasing) in the latest version (10064738), it
is about 5 times slower then in uberpov:

Persistence of Vision(tm) Ray Tracer Version 3.8.0-x.10064738.unofficial (g++ 7
@ x86_64-pc-linux-gnu)
Render Time:
  Photon Time:      No photons
  Radiosity Time:   No radiosity
  Trace Time:       0 hours 20 minutes  4 seconds (1204.944 seconds)
              using 4 thread(s) with 4542.093 CPU-seconds total

UberPOV Raytracer Version 1.37.1.0-beta.10 (g++ 7 @ x86_64-pc-linux-gnu)
Render Time:
  Photon Time:      No photons
  Radiosity Time:   No radiosity
  Trace Time:       0 hours  3 minutes 52 seconds (232.382 seconds)
              using 4 thread(s) with 907.615 CPU-seconds total

Command line is:
povray +d +p +q9 +am3 +a0.1 +ac0.9 +r6 AntiAliasingTest.pov
uberpov +d +p +q9 +am3 +a0.1 +ac0.9 +r6 AntiAliasingTest.pov

Does anybody have a clue why povray is so much slower?

Cheers
Ton

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