Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] General Discussion => Topic started by: zules on 2017-05-14, 16:39:12

Title: Corona Image Editor - proper alpha channel / transparency
Post by: zules on 2017-05-14, 16:39:12

Hi there, thanks for this awesome 1.6 version, really nice upgrade, good to see this piece of bytes going such a good way ! :)

I facing an issue to get a good alpha channel after saving from the Corona IE..
Saving in exr/png doesnt give me any alpha channel, or a full white one. I'm used to work this way and understand how it works, but here...

I'm working with and HDR in environment slot & with lightmix.

How to get it ?

Thanks I feel dumb ! :D

Title: Re: Corona Image Editor - proper alpha channel / transparency
Post by: Ondra on 2017-05-14, 21:14:45

it is a bug, scheduled to be fixed in hotfix1

Title: Re: Corona Image Editor - proper alpha channel / transparency
Post by: zules on 2017-05-15, 00:37:11

Ok good to know !

Also, when getting alpha through TIFF files from VFB, I always get this kind of white edges... see attchd

I paste the alpha, or get it from CTRL+clic on a layer into PS to get it from the channel, but I always keep this stroke... is it a bug too ?

Thanks ! :)

Title: Re: Corona Image Editor - proper alpha channel / transparency
Post by: 3dgraphics on 2017-05-15, 08:08:19

No, u should render with black background and then put the
Background in Photoshop. An other way no so clean is to
Use defringe in Photoshop

Title: Re: Corona Image Editor - proper alpha channel / transparency
Post by: zules on 2017-05-15, 13:57:11

Well done for defringe command, I forgot it as dont have this issues on Vray usually....

I never rendered with a black BG in other render (Vray, Maxwell...) and never got fringes using my method... weird to got them in here...