Why is there this hotspot in the middle of my screen?

Rhino Rhino for Windows
1

V6 (shaded mode):

image
image.png1449×978 201 KB

V5 (shaded mode):

image
image.png1457×944 146 KB

Top view, the gray surfaces are all planar and parallel to XY.

2

Hi MItch - I see that as well in plan views… If I set the defaults, I get both the hot spot and the expected emap ‘horizon’
And, I do not see any of the default lights being the source either…

-Pascal

3

Try this:

Options > View > Shaded > Shading settings

Color & material usage: custom material for all objects
Customize…
x user objects’s display color
Gloss intensity: 0%
Gloss finish: 0%

Does that make it any better?

4

Yep, if I turn off the gloss, the hotspot disappears, and if I turn off the environment, the band disappears…