While the test set is still not complete even with respect to covering 
all shape types, I've better flushed out test cases for verifying the 
inside test mechanism. In the process found some of our basic shapes are 
not today returning the correct inside test results. Further, I've long 
had on my list that some of the media intensities look suspect to me for 
the non-inside test based versions and I'll show one example - blobs.

In the attached image master branch used at commit 054e75c except the 
bottom row which uses the my new solver branch given how bad the blob 
result for speckles was with the master branch in the next to bottom row.

The top row shows an expected result for shapes in general. In this case 
for a bezier_spline prism. When things are working the media result in 
the left column uses the shape straight up as a container with constant 
media density. The middle column shows a media result using a matching 
inside-test -> object-pattern -> function based media. Should be the two 
approaches basically match though they won't be identical.

Rows one through four showing shapes where the inside test is failing.

The bottom two rows show a class of cases on my list for a while where 
it looks to me like the normal shape-intersection media intensities are 
too high. Not dug at all - bounding issue for the inside test version 
maybe - don't know.

- Row 0 A good test.

- Row 1 the cylinder.

- Row 2 the cone (cone and cylinder really the same code internally).

- Row 3 superellipsoid set as a sphere (a).

- Row 4 the new torus-union variety is acting like the torus-merge for 
the inside test.

- Row 5 blob test with master. Speckling bad. Shape OK but intensities
puzzling.

- Row 6 blob done test with new solver branch re-based off master.

(a) - Remember the peeling paint superellipsoid scene of Thomas's where 
I tried to use the soft_object to create actual peeling paint on the 
fly. Remember too how it was offset away from the surface of the 
superellipsoid. I until yesterday though I had just gotten something 
wrong in my offset math - looks instead like the dang inside test is 
wrong (set for the largest box possible maybe)!

Anyway, more stuff for the todo list.

Bill P.

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