Is stitching in 3D or 2D?

[nikanfds]

I run the example of rooster, and I can see in the output image the color of background turns darker in compare to textels.png
And the mesh doesn't have any tex-coordinate that falls into background.

So the question came to my mind is that if you are stitching based on the boundaries in 3D space, then why the color of background should change?

Thanks

[mkazhdan]

Can you share an image of what you are describing?

[nikanfds]

Archive.zip

[nikanfds]

In the zip file I shared, comparing "texels.png" and "stitched.png" shows the difference in background

[mkazhdan]

I believe the answer is "no good reason". If I recall, we just set the background color to the average color of the foreground texels.