Are you sure your framebuffer is set to RGBA? Sounds like you have it set to RGB only.
El lun., jun. 6, 2016 12:01 AM, Pierre Schiller < activemotionpictu...@gmail.com> escribió: > I don´t understand something: If I use the PREVIEW button on Render > >Render>Preview, I save the picture as .png and IT COMES with an alpha > ready channel. > > But if I render a series of images as .png the background comes with NO > ALPHA. > > Ok, I´m very confused now. Why can´t I get an alpha straight out from a > sequence .png? > > Thanks. > > > On Sun, Jun 5, 2016 at 6:01 PM, Pierre Schiller < > activemotionpictu...@gmail.com> wrote: > >> So, to get my "transparent bk" I should set a gigantic grid on the entire >> background with the color I desire? >> Wait, then, how doable is it to work with alpha with arnold directly from >> render? >> I´m figuring I can pull out a key (by doing another "solid" constant >> white shader, assign it to a pass with all the objects >> and rendering on MR, but that is not a solution since arnold as such >> should handle transparency all from a single render. >> >> The objective is to have a set of furniture rendered WITH an alpha >> channel. How can I accomplish that? >> Help please. >> >> Thanks. >> >> >> On Tue, May 31, 2016 at 4:49 AM, Schoenberger <x...@digidragon.de> wrote: >> >>> And with an environment shader, you can even use a ray switch to choose >>> different colors for refraction and transparency. >>> (you might need to turn on the sprite mode transparency in my shaders) >>> >>> Holger Schönberger >>> technical director >>> The day has 24 hours, if that does not suffice, I will take the night >>> >>> >>> ------------------------------ >>> *From:* Schoenberger [mailto:x...@digidragon.de] >>> *Sent:* Tuesday, May 31, 2016 11:46 AM >>> *To:* 'softimage@listproc.autodesk.com' >>> *Subject:* RE: Arnold shaders, interactive oppacity on Alpha? >>> >>> >>> >No alpha on arnold. What?! >>> No option in the shader to choose color+alpha if the refraction depth >>> hits the limit or if the ray leaves the scene. >>> In SI+ MRay, you can set an environment shader per object or pass to set >>> the color+alpha, which is by default 0/0/0/0. >>> >>> >>> Holger Schönberger >>> technical director >>> The day has 24 hours, if that does not suffice, I will take the night >>> >>> >>> ------ >>> Softimage Mailing List. >>> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com >>> with "unsubscribe" in the subject, and reply to confirm. >>> >> >> >> >> -- >> Portfolio 2013 <http://be.net/3dcinetv> >> Cinema & TV production >> Video Reel <https://vimeo.com/3dcinetv/reel2012> >> > > > > -- > Portfolio 2013 <http://be.net/3dcinetv> > Cinema & TV production > Video Reel <https://vimeo.com/3dcinetv/reel2012> > ------ > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > with "unsubscribe" in the subject, and reply to confirm.
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