some photoshop problems

[alexthg]

just a quick question

i saved a rendering in PNG with alpha,

opened the PNG file in photoshop cs2... background disappear (transparent)

how to tell photoshop to show the background?

[Neilg]

Dont use png, they use the alpha as transparancy instead of as a mask.

[DaForce]

you could also put another layer behind it in PS and set that to the background color or picture of what you want.

[themaxxer]

interesting is that in combustion when shifting the alpha the image appears again. that means the image is there but transparent.

best regards
themaxxer

[alexthg]

thanks for the replies!

the reason I use png because somehow PS CS2 recognizes the premultiplied alpha (so no background fringes around the foreground object).
But sometimes i just need PS to show the original background for whatever reasons...

hmmm... is there not any option in PS on how to treat the alpha channel when u open an image? Something like whether you'd like the alpha as a mask, or transparency, use premultiplied or not, etc...

[themaxxer]

if you want a premultplied alpha then use *.tga

best regards
themaxxer