No joke, I was in the middle of creating an example for another problem I was having when I stumbled onto some weird behavior. Can someone explain why this is doing this? It's in cycles by the way.

So I made a 1920x1080 texture in gimp, white background, with the word test written in blue.

I applied this to a plane (which was UV unwrapped).

I then went to the blackground tab, clicked on use nodes, and turned the brightness up (1, 1, 1 on RGB) When I rendered it everything was white, I couldn't see the boundaries of the plane. When I turned the color down (so now it's some shade of grey) the plane simply changed color. That little circle is roughly where the plane is (plane is a bit bigger in reality), and, even though you can't see it, the background is also in view. The arrow is pointing to the grey background picture. My texture background is solid white, but now it's grey.

  • $\begingroup$ I should also say that in the last image the viewport is in rendered mode. $\endgroup$ – meed96 Mar 24 '15 at 20:14

The apparent brightness of the plane depends on the amount of light reflecting off of it and into the camera. If there isn't as much light, then it'll appear darker.

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  • $\begingroup$ Is there a specific reason that it reflects the exact amount of light that the background is putting out? Instead of only being slightly affected? $\endgroup$ – meed96 Mar 24 '15 at 20:37
  • $\begingroup$ @meed96 If it's pure white then it'll reflect 100% of the light which hits it. Try making it 80% or 90% white, then it'll be more visible. $\endgroup$ – gandalf3 Mar 24 '15 at 20:51

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