Matte/Shadow/Reflection material is rendering objects black

[Anonymous]

I am using a photograph of a room as a background image and I am planning on adding furniture to the scene.  I created a matte/shadow/reflection material and applied it to the walls and floor (so they disappear), and it is rendering black.  I've read through some other posts on this issue and tried to follow the suggestions, but havent gotten it to work . In the mr Photographic exposure control window, I have the physical scale set to unitless and have tried numbers as high as 100,000 with the Exposure value set to 10.  I've tried many combinations - can there be anythng else to look at?

[PROH · Accepted solution]

Hi. When using the mr "Matte/Shadow/Reflection" material, you need to copy (instanced) your background map to the "Camera mapped Background" slot in the material. Otherwise it will render black.

There are several "tricks" regarding this issue, all described in the help file: http://docs.autodesk.com/3DSMAX/16/ENU/3ds-Max-Help/index.html?url=files/GUID-8DEE14E3-1F49-4072-AA0...

Hope it helps

[Anonymous]

PROH,

Thanks so much for that tip - worked perfectly, but now the background image has a weird blue tinto to it. Any more words of wisdom?