A background picture will only show up if it sends light back to the camera. If it is a plain non-emmisive background this requires a fairly intense light to shine on it such that it can reflect the image.Hey guys - do any of you have experience using this environment asset? I’m trying to render a scene but the background picture I have doesn’t show up? It only shows up on some renders and the rest it’s just black. Attached is a picture of when it works, on the others the background picture is just black. Any advice?
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The best way to fix is to make the background picture an emissive source. To do this, set the surface base color to black, set the emissive color to white and then apply the image as the emissive map (the down arrow).