On 08/18/2014 10:13 AM, clipka wrote:
> Am 12.08.2014 19:08, schrieb James Holsenback:
>
>>>> The Sam's test scene (OTOTest.pov) renders fine here with the latest
>>>> POV-Ray and UberPOV stuff (Windows versions).
>>>
>>> here's what I'm doing:
>>>
>>> #declare Floor =
>>> union {
>>>      object {
>>>          OTO( <-2.5,-2.5,0>, <2.5,2.5,1>, 0.075, texture { BaseTexture
>>> scale 1 } )
>>>          }
>>>      box { <-2.5,-2.5,0.075>, <2.5,2.5,0.075> pigment { srgb 1 } finish
>>> {diffuse 0.6 specular 0.15 roughness 1e-5} }
>>>      rotate x*90
>>>      rotate y*0
>>>      }
>>>
>>> kind of funny that it works with some versions (perforce/git 3.7 stable)
>>> but not other git repos ... 32 vs 64 bit? compiler?? configure
>>> changes???
>>
>> found OTOTest.pov file laying around in some obscure corner ... here's
>> results
>
> I've got some good news: While I'm still unable to reproduce the error,
> I /am/ now able to exactly reproduce the output you're seeing (see
> attached image), by changing the OTO_FMask function

yes that IS good news ...

>
>      #local OTO_FMask = function{ pattern{ pigment_pattern{
>          checker 0, 1 warp{planar} } } }
>
> to something that never returns 1; so it would seem that the error
> scrambles one of the statements in this function definition.
>
> Can you please dig further in this direction to figure out exactly what
> part of this is broken? (I guess this will lead us much faster to the
> root cause than knowing exactly which commit introduced it.)
>

OK

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