Moho Forum

In earlier version of AS, when I had a file with a single figure and no background and exported it as AVI movie, this Movie automatically had a transparent background. Very useful to re-import in AS.

But in ASP8, this has changed. The background isn't transparent anymore, its either white or black. Is there a way to make transparent AVI movies again?

Export the animation.

In the Export Animation box do the following:
1. Export the project animation as a QuickTime movie.

2.In the render options select "Do not premultiply alpha channel".

3. When the QuickTime compression dialog appears, select the
PNG codec, and Millions of Colors+ as shown below. The
+ is QuickTime’s notation to include an alpha channel in the
exported movie.

4. Render the movie. Now when you bring the movie into your ASP8 it will include the transparency.

udd

As far as AVI goes you can do it with some codecs, but I can't remember which ones.

uddhava wrote:As far as AVI goes you can do it with some codecs, but I can't remember which ones.

If I remember well, this two
http://lags.leetcode.net/codec.html
http://neuron2.net/www.math.berkeley.ed ... ffyuv.html

Thank you very much;, both of you!

Hm...I just tried out both solutions, but unfortunately, neither of them worked. By the way, I don't remember that I had to use a special codec in ASP7 in order to obtain avi with transparent background...

Diana Kennedy wrote:Hm...I just tried out both solutions, but unfortunately, neither of them worked. By the way, I don't remember that I had to use a special codec in ASP7 in order to obtain avi with transparent background...

You really need a codec, avi doesn't have alpha by default, so probably you had it installed before.
It's very weird you don't get alpha with mov movie. Check two things:
- are you sure you have activated "transparency" in "display quality"?
- open the move file and press crtl+I (or command+I in mac) and check the info of the mov movie, it shoud say "million colors +".

I just tried it with Canopus HQX codec and it worked. In what software are you checking the alpha? Perhaps they are exported with alpha but the software you use misinterprets them?

Ponysmasher, I check it in Anime-Studio after re-importing the movie.

Selgin: Uh-oh, I don"'t remember such a transparency option. such. I will check this out...

Diana Kennedy wrote:Ponysmasher, I check it in Anime-Studio after re-importing the movie.

Well that doesn't work for me either. Did that work before? I know I've done it with Quicktime before but never Avi.

EDIT: Actually I might not even have used transparent Quicktimes now that I think about it.

Yes, it always worked perfectly in the older versions. I even imported several avis, litteraly populating an AS files with them. All with perfect, clear transparent background.

I got it working by double clicking the layer and under the Image tab check the box "Avi movie has alpha".

Boy...you are right...and that's the way I made it also in that time. How the hell could I forget that.

Yes, to be true, I didn't work this way (with imported avis) for some time, I had found better techniques. But now I have a task where I really could use the avi-import. So great thanks for digging out this forgotten how-to-do for me.

Wanted to thank you all for this post!