alpha channel works in LV but NOT in final render Tweet

[Mindspi3D]

if i turn on Alpha channel, it works in the LV, but when i render the final Image in Cinema Picture viewer, it doesn't.
in the final render there is my hdri texture seen in the Background.
but i want to have it transparent like ist properly done in the LV.
whats the prob?

[aoktar]

It works, but you missed somethings! Did you checked the saved images for alpha? Did you looked to alpha option for saved file?

[Mindspi3D]

ok thanks, i clicked the alpha channel under "save" in the C4D render Settings. when i open this in photoshop i have the alpha channel available, so i can cut out my object manually and replace the Background. for still Images it works.
but what is with animations with thousands of single Frames? there must be another solution?

[zoppo]

Where is the difference between using an alpha channel in Photoshop and using an alpha channel in After Effects?

[Mindspi3D]

in photoshop i have to MANUALLY cut out my object.
how do i use that technique in after effects with thousands of single Picture without growing old?

[aoktar]

in photoshop i have to MANUALLY cut out my object.
how do i use that technique in after effects with thousands of single Picture without growing old?

You don't! What's your file format?

[milanm]

how do i use that technique in after effects with thousands of single Picture without growing old?

You are totally right. As far as I know, no one figured out how to not grow old doing vfx yet. The science is just not there yet.

Cheers
Milan

[Mindspi3D]

in photoshop i have to MANUALLY cut out my object.
how do i use that technique in after effects with thousands of single Picture without growing old?

You don't! What's your file format?

i render my Animation out as png sequence.
this png sequence i want to use in after eccects.
then i want to have my object animation without any Background (but with all reflections on my objects Surface), so that i can add another background in AE.

[Mindspi3D]

how do i use that technique in after effects with thousands of single Picture without growing old?

You are totally right. As far as I know, no one figured out how to not grow old doing vfx yet. The science is just not there yet.

Cheers
Milan

thank you for this helpful comment.

[aoktar]

in photoshop i have to MANUALLY cut out my object.
how do i use that technique in after effects with thousands of single Picture without growing old?

You don't! What's your file format?

i render my Animation out as png sequence.
this png sequence i want to use in after eccects.
then i want to have my object animation without any Background (but with all reflections on my objects Surface), so that i can add another background in AE.

You can see alpha from png and disable or enable. It's like that since years, no problems.