Render out transparent background

[haffy]

This is probably a stupid question, but I am new to Cinema 4D and Corona, so here we go :)

How do I render out a scene with HDRI-Light material on the Environment, with a transparent render result (no BG showing up in render)? I call it alpha.

[burnin]

Seems like Alpha is always on/active, so just use proper image file format when saving.

note
You can see, observe alpha channel in:

• CFB (short for "Corona Frame Buffer"): Passes drop down list (BEAUTY, Alpha...)
• C4D Picture Viewer: Layer (Background, Alpha...)

enjoy