View Full Version : Render Buffer Export and Alpha Channel

05-02-2005, 05:11 AM
Having searched the bulletin board I can't get a clear answer to the following question.

Can someone confirm the following...

When using Image Filter > Render Buffer Export is it possible for the Alpha channel to be rendered with the file?

No matter which 32 or 64 bit format I use the alpha gets exported a pure white.

If I save the sames formats from render Options the alphas are intact.

05-02-2005, 07:50 AM

And the reason is, because it is a 'render buffer' exporter, it exports only the render buffer/channel you select...It would make NO sense to render out an alpha with that buffer aswell, since the alpha is a buffer in it's own way.

if you want to include the alpha channel however, i suggest you download ASA_buffersaver, which let's you create your own buffer export (it let's you decide what buffer/channel goes into what channel of a file....so, you can for example you can put Diffuse in the Red channel, Reflecion in the Green channel, Special buffer in the Blue channel and Alpha in the Alpha channel...)