[Bf-cycles] Build without OpenImageIO

[Mohamed Sakr]

as Stefan mentioned,  ImageManager::builtin_image_info_cb,
ImageManager::builtin_image_pixels_cb and ImageManager::builtin_image_
float_pixels_cb
we use these callbacks also in Cycles4D to handle Cinema4D textures.

On Mon, Mar 5, 2018 at 5:29 PM, Stefan Werner <stewreo at gmail.com> wrote:

> There is a callback system already, Blender is using it to load packed
> textures. If I remember correctly, the Poser integration is loading all
> textures through its own imaging library and not OIIO.
>
> The callbacks are:
> ImageManager::builtin_image_info_cb, ImageManager::builtin_image_pixels_cb
> and ImageManager::builtin_image_float_pixels_cb
>
> -Stefan
>
>
> On 5. Mar 2018, at 14:58, Nathan Letwory <nathan at mcneel.com> wrote:
>
> The better way of course would be to have a callback system whereby
> clients (Blender, Rhino, Goxel) can register the necessary functions to
> handle image data the way they see fit. For Blender they'd be the current
> functions behind which OIIO is hidden etc.
>
> On 5 Mar 2018 3:52 pm, "Nathan Letwory" <nathan at mcneel.com> wrote:
>
>> For RhinoCycles I have added a simple define bypass to cut out much of
>> the image reading code.
>>
>> Unfortunately OIIO utility code is used quite extensively, so I left
>> those usages in.
>>
>> https://github.com/mcneel/cycles/commit/5f8ca9d2e49ad63a7776
>> 8bac0b8e4b987f761149
>>
>> On 5 Mar 2018 3:33 pm, "Guillaume Chéreau" <guillaume.chereau at gmail.com>
>> wrote:
>>
>>> On Mon, Mar 5, 2018 at 8:37 PM, Brecht Van Lommel
>>> <brechtvanlommel at pandora.be> wrote:
>>>
>>> > Alternatively you keep use the OpenImageIO_Util library that is part of
>>> > OpenImageIO. It is much smaller and includes just these utilities, so
>>> you'd
>>> > only have to make the image reading/writing part in Cycles optional.
>>>
>>> Yes that would be acceptable like that I guess.  I will try to keep
>>> working on that when I have time and see what I can come up with.
>>> Meanwhile you can see a screenshot of my first attempt of using cycles
>>> in goxel:
>>>
>>> https://user-images.githubusercontent.com/107679/36977390-ef
>>> 3db750-20bb-11e8-9064-b8c9ddc3504f.png
>>>
>>> Regards,
>>> Guillaume
>>> _______________________________________________
>>> Bf-cycles mailing list
>>> Bf-cycles at blender.org
>>> https://lists.blender.org/mailman/listinfo/bf-cycles
>>>
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