the alpha render

jadorno_6bc7e945ce

Is there a way to change the alpha render in DAZ 4.7? I've been using DAZ 4.6 and got used to the black background. can I get the black back in 4.7?

kitakoredaz

Since 4.7 added Environment pane.
open Environment tab, then change Active type as Background
then set color for background is OK.:)

Richard Haseltine

Note, however, that you can't have both a solid background colour and an alpha channel - in order for the masked output to avoid blending in the background colour the edge pixels must have the item colour only, so without the mask the image will have an ugly halo.

ben98120000

You can save your image as .jpg. Since .jpg doesnt save alpha channel, everything from alpha will be black.

kitakoredaz

Richard can you teach me more detail?

when I hope to change backgorund in gimp etc with layer,
usually I just use png to save my render image (ds 4.7 offer no back ground color)

I believe it work well.

it is what you said "the edge pixels must have the item colour only"?

then if I hope to use pure black as mask color for the backgorund, what I really need to do?
or simply you not recommend it? (not set backgorund )

I remember about many case we needed to render image with black (or one color as mask) for background ,
(eg render image sequences for animation, and add backgorund )

that means before DS 4 did not offer true way for masiking backgorund ?
then ds 4.7 remove the problem?
( i remember actually they didi not work well about edge,, )

Richard Haseltine

If you want a clean cut-out for compositing you should not use a backdrop, and should save as png or tiff. You will then (depending on your software) get either a cut-out or a slightly odd looking image on a black ground with an alpha channel (saved selection) that you can use to select and copy it. You will then get no colour halo around the image, making the compositing much easier than in the past.