Backplate display obscured by HDRI

Corona Corona for 3ds Max Help Required
1

Hi,

Im new to corona and have been testing it to se whether I will make the switch over from vray (looks likely). An issue I am running into is that when I use a PG HDRI in the environment slot there is a very obvious band where the horizon line is (normal). However usually I put in a backplate so that this horizon line does not appear in reflections etc. when I put in a backplate in this scene either on a light material or just on a standard material, I am still getting the horizon band with the backplate image and the rest of the image is obscured. its like in photoshop when the mode is set to multiply. is there a reason the backplate image is not being displayed?

Thanks in advance for any help.

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CORONA QUESTION01.jpg
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3

I have tried with a corona light material with both the light emitting and not. I’m totally stumped.

5

Haven’t you disabled the “cast shadows” option for the backplate in object properties?

6

Hi Maru,

Yes I have disabled cast and receive shadows.

8

Thank you rawalanche for this explanation. I am on holiday for a week, but when I get back I’ll give this a try and let you know how it goes. Thanks again!

9

Here are Rawa’s advices and examples in a more user-friendly form (hopefully :smiley: ):
https://coronarenderer.freshdesk.com/support/solutions/articles/5000516723
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515605

10

Perfect!! Thanks Maru.