I was looking at this again this morning, using the unmodified 
scenes\animations\speclr.pov and speclr.ini files, and the two POV-Ray 
versions (3.6.1 and 3.7.beta.7 {icl8}) definitely use 'clock' differently.

Again, checking this in version 3.6 shows the clock (or specular value) 
counts like:

0.0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.7, 0.8, 0.9. Skipping 0.5.

And in the beta this is done like:

0.0, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0. Skipping 0.1.

Also, in the beta, I saw the specular (clock) value go up to 1.1 instead of 
remaining at or below 1.0 like it is supposed to. Cyclic_Animation=on keeps 
it from going beyond 1.0 but with it "off" it becomes 1.1 at frame 10. So 
this seems the important aspect, that clock should never jump over 1.0 even 
if cyclic is off... unless the Initial_Clock and Final_Clock aren't 
defaults, of course.

Might be something to do with str() but I must leave that up to you to 
figure out.

Bob Hughes

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