C4DtoA Transparent Plastic

[jajachuk87]

Hi, I have tried to render plastic transparent without background and with alpha channel, everything seems to works how should but when I turn off background, plastic is not transparent anymore and it turns to black. I have tried Arnold opaque tag and Transmit AOVs of Arnold Standard Surface but no help. How I can render this without background so I can see the background through it in Photoshop?

Thx

[lee_griggs]

Are you lighting it with a skydome light? If so, you have the visibility attributes.

Otherwise, you could connect a ray_switch shader to the background.