Am 05.10.2018 um 20:33 schrieb Alain:

> I expected some message about the max_gradient found to be around 9 but
> set at 1.0.
> The resulting image show obvious holes.
> 
> But, I don't get any message after the render is complete.

Can't reproduce:

- I only see an (almost perfect) clay-brown slab, even with the
max_gradient 1 setting. No holes for me.

- Previous versions (tested with v3.7) do not produce a max_gradient
warning for this scene either. [*]

- When I set max_gradient even lower (0.1), I do get holes, but I also
do get a warning with alpha.9861167. [*]

- The reported maximum gradient found is 0.990, not around 9.


[* Fun side note: At a max_gradient setting of 0.1, it is POV-Ray v3.7
that fails to issue a warning.]

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