[x3d-public] Need for colorspaceConversion field in ImageTexture, glTF compatibility

[Andreas Plesch]

Coming back to color profiles potentially embedded in some important
image formats, I added a colorSpaceConversion field to ImageTexture in
x3dom:

https://andreasplesch.github.io/x3dom/dist/doc/author/Texturing/ImageTexture.html

It is by default true for normal X3D use and can be false for loading
glTF textures correctly:

https://andreasplesch.github.io/Library/Viewer/index.html?url=https://gist.githubusercontent.com/andreasplesch/817bc44089a7b7545149cf12acdd7c86/raw/75242ebfea03048d0f4939e1656c5063c9544d11/TextureEncodingTest.x3d

It is trivial to change the field name if there are other suggestions.

-Andreas

On Tue, Aug 29, 2023 at 1:53 PM Andreas Plesch <andreasplesch at gmail.com> wrote:
>
> Following up after some work:
>
> On Thu, Aug 24, 2023 at 11:15 PM Andreas Plesch <andreasplesch at gmail.com> wrote:
> >
> > On Thu, Aug 24, 2023 at 9:14 AM Michalis Kamburelis
> > <michalis.kambi at gmail.com> wrote:
> > >
> > > 1. As for colorspaceConversion:
> > >
> > > I don't think we want to avoid adding X3D field for this :)
> >
> > Well, it is worth thinking through options if it means smarter
> > solutions can be discovered.
> >
> > > I'm all after adding X3D field to account for this -- that is, say
> > > explicitly whether ICC profile should be honored or not, so that all
> > > cases are satisfied. I'm cool with colorspaceConversion name.
> >
> ...snip
>
> After some thought I do think that a new field is needed for
> ImageTexture (and MovieTexture, and Background ?).
> "colorspaceConversion" or "colorSpaceConversion" or perhaps something
> shorter like "colorProfile"  ?
>
> x3dom will probably use the webgl texture unpacking parameter.
>