"Kenneth" <kdw### [at] gmailcom> wrote:

> The background *within* your box map does indeed show up as green now-- but does
> PB's question concern the *surrounding* area? That renders as black, regardless
> of the background color.

Go to the camera page on the wiki.

User defined projection
New to version 3.8 a user defined camera capability was added.
Similar to the mesh camera  <---

Mesh:
Keep in mind that a ray that is not associated with a face is not the same thing
as a ray that is but that, when shot, hits nothing.

The latter will return a pixel (even if it is transparent or the background
color),

whereas the former causes the ray to not be shot in the first place; hence, it
is not included in the calculation of the average for the pixel.

So hopefully you can parse that and see why the two are different.

- BW

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