In article <3AB28A11.FF99E2B5@faricy.net>, David Fontaine 
<dav### [at] faricynet> wrote:

> They don't show up because this has been resized (and cropped). I don't 
> think it'd be max_trace, since the blob is opaque and nonreflective.

Maybe adjust the max_intersections value...it affects the number of 
intersections found when testing against an object. If it simply isn't 
finding the front surfaces of the blob because it's tested as many as it 
can, it might cause this artifact.

4.10.7  Max_Intersections
POV-Ray uses a set of internal stacks to collect ray/object intersection 
points. The usual maximum number of entries in these I-Stacks is 64. 
Complex scenes may cause these stacks to overflow. POV-Ray doesn't stop 
but it may incorrectly render your scene. When POV-Ray finishes 
rendering, a number of statistics are displayed. If you see I-Stack 
Overflows reported in the statistics you should increase the stack size. 
Add a global setting to your scene as follows:
global_settings { max_intersections  Integer }
If the I-Stack Overflows remain increase this value until they stop.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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