HDRI background & Alpha channel question
polycounter lvl 5
Hey, sorry for the simple question - I wanted to add an hdri background to my character render in Nuke using the alpha channel as described here. The problem is I've (stupidly) rendered the character against a 50% grey backdrop (pic1) rather than just making the backdrop invisible so the character would be against black. So basically the alpha channel is totally white as the backdrop is seen as solid geometry now.
Because the backdrop has been included in the render theres a subtle gradient from dark to light because of the scene lights (pic 2). I just wanted to know if I would still be able to use this render to add an hdri background if I made a new alpha (without the backdrop rendered) or would the rendered backdrop thats got a gradient be too much of an issue to remove as its not 100% black? Hope that makes sense and many thanks to anyone who can help
Because the backdrop has been included in the render theres a subtle gradient from dark to light because of the scene lights (pic 2). I just wanted to know if I would still be able to use this render to add an hdri background if I made a new alpha (without the backdrop rendered) or would the rendered backdrop thats got a gradient be too much of an issue to remove as its not 100% black? Hope that makes sense and many thanks to anyone who can help
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