This series of images demonstrates the differences within a scene that
radiosity can make. None of these images has light. RT1 is sans radiosity,
RT2 is sans radiosity with the ambient value of the ground plane set to 1,
RT3 is ground plane set to 0 and radiosity on. The ambient_value setting is
0 for all three images. Render time went from 7 minutes, to 49 minutes, but
please note the settings.

global_settings { ini_option "+w512 +h384 +a0.3 +am2 +r2 +sp8 +ep4 +qr"
   max_trace_level 10 assumed_gamma 2.2 ambient_light 0
   radiosity { brightness 1
      count 600
      error_bound 1
      nearest_count 3
      low_error_factor .3
      minimum_reuse .15
      pretrace_start .08
      pretrace_end .01
      gray_threshold 0.5
      recursion_limit 2
      adc_bailout .01 } }

Grim

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Attachments:
Download 'RadTest1.jpg' (11 KB) Download 'RadTest2.jpg' (18 KB) Download 'RadTest3.jpg' (15 KB)

Preview of image 'RadTest1.jpg'

Preview of image 'RadTest2.jpg'

Preview of image 'RadTest3.jpg'