[wagurto]

Can someone be so kind of quick explaining how to combine the alpha channel map created with maxwell and a background image? I know that have to be done in PS or other image program.
Thank you

[zoppo]

i usually copy and paste the alpha map in a "new channel" -> alpha channel.
after that you use "load selection" and choose the alpha channel as source.

[acquiesse]

Hi,

Zoppo is right, but if you're not confident using PS....

Open your alpha file in PS
> select all
> copy

then open your background image file..
>paste (this will put it in as a new layer)
>magic wand (to select the area of the background image you want... uncheck "contiguous" and put the selection range to 255 to make sure you get everything)
>change the highlighted layer to the background one
>copy

then open your render > paste...

the area of background you desired will now be in your render, fitting over the top of the sky parts...

Hope that made sense...