On 3/30/18 8:21 AM, William F Pokorny wrote:
> In continuing to look at media I returned to a 'blob-media' issue Gail 
> Shaw originally posted back in 2005. 

A long time since I posted here on the progress I guess... Still hacking 
- just proving hard to get everything dependent on polysolve to 
something mostly 'fixed.'

Yesterday, Johannes (j13r) posted in newusers a scene where he was 
trying to create a scene using torus shapes and media to create 
something like solar flares on the surface of a disk. A slightly 
modified version without lights makes for a pretty good poster for 
current media issues compared to my current working branch with better 
solvers/shape code, my current version of the change proposed in: 
https://github.com/POV-Ray/povray/pull/358 and the internal small 
tolerance at 1e-6 instead of 1e-3.

The current v3.8 on the left, my patched branch in the middle and the 
differences (artifacts) shown on the right. The scene was modified for 
no lights and run with the flags: +w600 +h300 Corona.pov -j +p +a in 
both cases.

Bill P.

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