POV-Ray : Newsgroups : povray.binaries.images : unexplained : Re: unexplained Server Time
6 Oct 2024 05:41:59 EDT (-0400)
  Re: unexplained  
From: James Holsenback
Date: 23 Jan 2015 13:25:21
Message: <54c29211@news.povray.org>
On 01/06/2015 05:42 PM, clipka wrote:
> Am 28.08.2014 um 19:41 schrieb James Holsenback:
>> On 08/20/2014 09:40 AM, clipka wrote:
>>> Am 20.08.2014 15:26, schrieb James Holsenback:
>>>
>>>> OTO_Get_Mask
>>>> <-8.00000000000000000000,-5.00000000000000000000,0.0000000000000000
>>>> 0000> Result:0.99999997764825820923
>>>>
>>>> Hmmm ... OK I think this shows problem the above is output from inside
>>>> the OTO_Get_Mask function ... I now see why reversing the logic (and my
>>>> "on a lark" test) in corner test works
>>>
>>> Bingo!
>>>
>>> Okay, you obviously have already figured a way around this problem by
>>> way of modifying OTOc.inc, and I think I now have enough information to
>>> go hunting for the root cause in the codebase.
>>>
>>> I might come back to you for testing of some code modifications, if
>>> that's ok for you.
>>>
>>
>> curious if you've had any time to follow up
>
> Now that I've returned from outer space, I have at last; can you please
> try the following patch:
>
> At the beginning of source/base/colour.h, around line 95, replace the
> following lines:
>
> const float kRedIntensity   = 0.297;
> const float kGreenIntensity = 0.589;
> const float kBlueIntensity  = 0.114;
>
> with this:
>
> const PreciseColourChannel kRedIntensity   = 0.297;
> const PreciseColourChannel kGreenIntensity = 0.589;
> const PreciseColourChannel kBlueIntensity  = 0.114;
>
> I /think/ it should fix the issue. The culprit would then have been
> change 0ea2da4.

I'm unable to get a clean build after beta6 and I don't have time to 
troubleshoot. Wooo hoo I'm getting my 1st day off (this coming sunday) 
since the 1st of the year, and I'm not inclined to spend that time 
trying to unravel. I DID however notice you made a change on the Wiki to 
the "Strings" documentation. What time frame are you looking at for a 
release? There have been other doc changes since last release and I'd 
like to pick up the changes and post the new doc sets if there aren't 
any more changes.


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