Camera Background Alpha

[anywhere-final]

Hi everyone
I am trying to use camera background but I am wonderingthat is it possible to use camera background invisible in alpha chanel ?

Thanks

[Dr. Sassi]

Hi anywhere-final,

If I understand your question correctly, you want the background image in the rendering to appear only where the alpha channel pixel value is >0.

To my understanding, that is not an option. The Alpha information is rendered into the Alpha channel if the file created during rendering has a designated channel for Alpha information.

All the best