[Bf-committers] 16 bpc TIFF interpretation

[Morten Mikkelsen]

This is what I am talking about:

http://projects.blender.org/tracker/?func=detail&atid=498&aid=31257&group_id=9


<http://projects.blender.org/tracker/?func=detail&atid=498&aid=31257&group_id=9>

On Wed, May 2, 2012 at 1:12 PM, Morten Mikkelsen <mikkelsen7 at gmail.com>wrote:

> Me and my friend Andy Davies have been experiencing some weirdness
> regarding 16 bit tiff too. If we save a single channel (greyscale) 16 bit
> picture in photoshop
> as tiff and then read it in Blender it shows up, in the 3D view port, a
> little orange in some areas and blue in other regions (but most greyish).
> We've verified this on multiple PCs and monitors.
>
>
>
>
> On Wed, May 2, 2012 at 5:54 AM, Bartek Skorupa <
> bartekskorupa at bartekskorupa.com> wrote:
>
>> I'm not sure if this is known yet, but I recently noticed that 16bpc
>> tiff images are interpreted differently when viewed directly in UV
>> image editor and when passed to compositor.
>> It seems as if sRGB gamma is used when source is viewed in UV image
>> editor, but in compositor no gamma correction is applied.
>> Here is a comparison of the same image - upper panel - source viewed
>> in UV image editor, lower panel - taken from input image node to
>> viewer node:
>>
>> http://www.pasteall.org/pic/31145
>>
>> This comes from official Blender 2.63.
>>
>> Bartek Skorupa
>>
>> www.bartekskorupa.com
>>
>>
>>
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>
>