Am 15.01.2012 20:13, schrieb bart:
> On 01/14/2012 02:06 PM, Stephen wrote:
>> The following code fails with the following message:
>> Picture index out of range.
>> Picture index out of range.
>> Fatal error in renderer: Uncategorized error.
>> Render failed
>>
>> The texture scale is relevant.
>>
>> It does not fail in Pov 3.62
>
> I can confirm too, it happens with 3.7 binary (win7-64), even when
> version is set to 3.6, but not with 3.6.
> A tiny shift in the rotation
>
> rotate <90.000,90.000,0.000> + <0, 1e-14, 0>
>
> fixes this. Perhaps it's something to do with tangents somehow?

The root cause has been identified by now; it only shows when a ray 
happens to hit the image map extremely close to the image border (about 
a trillionth (1e-12) of a pixel off in this case), and is due to 
precision issues apparently not considered by the original code author.

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