1 premultiply pixel on multipass
Posted: Fri Dec 15, 2017 1:09 am
anybody can explain how its work in octane?
I already read all forum 10th times, tried everything: turn off/on alpha in after effects (after import footage), turn on/off straight alpha on c4d and after effects. I turn on and off pre-multiply alpha on camera imager. EVERYTHING. aoktar says many times: in octane everything ok with alpha. but why its work in vrayc4d? in AR3? in arnold? maybe i`m stupid but i dont understand how i can get clear alpha with multipass after octane.
so:
beauty image (with alpha channel, without straight alpha) + multipass zdepth (pre-multiply off, alpha channel on, keep environment off)
and for example i want to cut back of beauty image. and...look at screenshot. how i can fix it? after effects, c4d and renders attached too. Thanks.
I already read all forum 10th times, tried everything: turn off/on alpha in after effects (after import footage), turn on/off straight alpha on c4d and after effects. I turn on and off pre-multiply alpha on camera imager. EVERYTHING. aoktar says many times: in octane everything ok with alpha. but why its work in vrayc4d? in AR3? in arnold? maybe i`m stupid but i dont understand how i can get clear alpha with multipass after octane.
so:
beauty image (with alpha channel, without straight alpha) + multipass zdepth (pre-multiply off, alpha channel on, keep environment off)
and for example i want to cut back of beauty image. and...look at screenshot. how i can fix it? after effects, c4d and renders attached too. Thanks.