topic Re: How do you turn off "Physical Sky" background on a Arnold render so it is transparent? in 3ds Max Shading, Lighting and Rendering Forum

How do you turn off "Physical Sky" background on a Arnold render so it is transparent?

jeff_swann — Fri, 08 Mar 2024 15:57:32 GMT

Need the Physical Sky lighting effect influence on assets, but not the actual background image in an Arnold Render. Is there a button somewhere where you can turn off background like in Maya?

Re: How do you turn off "Physical Sky" background on a Arnold render so it is transparent?

CiroCardoso3v — Mon, 11 Mar 2024 06:46:28 GMT

Open the render settings, go to the Environment, Background and Atmosphere section

In the Background Backplate you have several options.

Re: How do you turn off "Physical Sky" background on a Arnold render so it is transparent?

jeff_swann — Tue, 12 Mar 2024 21:56:26 GMT

Thanks for your response, but I still get a background with background (BG) = NONE in Arnold Environment settings - see image. Also, Arnold Render View and actually rendering out frames gets the same BG in all. About to switch to HDRI lights to get alpha again as PNG rather than Physical Sky dome.

Re: How do you turn off "Physical Sky" background on a Arnold render so it is transparent?

CiroCardoso3v — Wed, 13 Mar 2024 07:08:16 GMT

Are you using a Skydome light for the Physical Skydome? If so, you need to untick this option called Light Shape Visible

Re: How do you turn off "Physical Sky" background on a Arnold render so it is transparent?

jeff_swann — Wed, 13 Mar 2024 12:13:50 GMT

Outstanding solution - knew an Expert could quickly solve my beginner problem - THANKS!! Thought this tick-box was just for viewports.