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Statistics Rollout (Radiosity) 75
taken. The ideal sett ings for adaptive sampling
vary greatly from scene to scene.
Adaptive sampling initially takes samples from
agridsuperimposedonthepixelsofthescene.
Where there is enough contrast b e tween samples,
it subdivides that region and takes further samples,
down to the minimum area specified by Subdivide
Down To. Lighting for areas not directly sampled
is interpolated.
Tip: If you use adaptive sampling, try adjusting
the Subdivision Contrast value to obtain t he best
results.
Adaptive Sampling—When on, the radiosity
solution uses adaptive sampling. When off, it does
not. Turning off adaptive sampling can increase
the detail of the final renderi ng, but at a cost of
rendering time. Default=off.
Initial S ample Spacing—The grid spacing for initial
samples of the image. This is measured in pixels.
Default=16x16.
Subdivision Contrast—The contrast threshold
that determines w hen a region should be further
subdivided. Increasing this value causes less
subdividing to occur. Reducing this value can
cause unnecessar y subdivide. Default=5.0.
Subdivide Down To—The m inimum spacing for a
subdivision. Increasing this value can improve
render time at a cost of accuracy. Default=2x2.
Depending on the scene geometry, g rids larger
than 1x1 might still be subdivided below this
specified threshold.
Show S amples—When on, sample locations
render as red dots. This shows where the most
sampling has t a ken place, which can help you
choose the optimal settings for adaptive sampling.
Default=off.
Statistics R ollout (R adiosity )
Main toolbar > Render Scene > Render Scene dialog
> Choose Default Scanline Renderer as the active
production renderer. > Advanced Lighting panel > Select
Advanced Lighting rollout > Choose Ra diosity from the
drop-down list. > Statistics rollout
Rendering menu > Render > Render Scene dialog
> Choose Default Scanline Renderer as the active
production renderer. > Advanced Lighting panel > Select
Advanced Lighting rollout > Choose Ra diosity from the
drop-down list. > Statistics rollout
Lists information about the radiosity processing.
Interfa ce
Radiosity process group
Lists the current level of quality and number of
refine iterations in t he radiosit y process.
Solution Quality—The current level of quality in
the r adiosity process.
Ref ine I terat ions—Thenumberofrefineiterations
in the radiosity process.
Elapsed Time—Thetimespentprocessingthe
solution since the last reset.
Scene Information group
Lists information on the radiosity processing of
the scene.
Geometric Objects—Lists the number of objects
processed.