I am trying to render an image of an emissive unlit plane from an orthographic camera in UE4. Unexpectedly, I found that the left and right sides of output images is dark due to some unknown effects. Then I rendered a white emissive unlit plane without any light source and get an image below:
Because the plane which my camera is looking at is unlit, I think the out put image should be totally white. However, it shows a “dark edges” effect. I was wondering if I can omit this effect and how.
Thanks in advanced!