Alpha animation into Premier 6.0

[Wokka]

G'day,

I know this is probably obvious someone, I'm sure I've done this successfully before.

I need to import some flying objects/images out of Cinema 4D in front of a background image. What format will take the alpha channel across? I've tried quicktime etc. Basically if I choose a alpha transparency in Premier I get no effect and I have to use 'difference' or 'chroma' but some of these images have solid black area's and they dissappear. If I use a blue background I get a touch of blue to the edges and if I touch the 'similarity' slider in Premier transparency I get a few gaps in the objects.

I would think that alpha channel would be the cleanest way but can't get it to work!

I may have to render with the background object in C4D but I'd like to work this out.

Thanks in advance.

[Chad Warner]

Not sure, but I think you would have to render as a tga or tif sequence with alpha channels, and then import that into premiere as a file sequence. Premiere will then treat the individual frames as one complete animation, and you should be able to use the alpha channel option.

 

-Chad

[tony3di]

You can use quicktime for alpha chanel transparency.

Just "save as" your animation as .mov, and in compression settings choose "Animation", and in depth choose "millions of colors+".

The "+" is the alpha chanel informação.

For quality choose always "medium" or "best".

It work´s for me all the time.

For higher precision and control use .tga file sequences Like Chad says.

Hope it was helpfull.

Cheers...

 

Tony.

[Wokka]

Thanks guys for the responses. I tried mov's with no success but I'm sure I've done it before so I'll have to dot my "i"'s and cross my "t"'s and try again.

If I use TGA or TIF's , should the aplha channel work automatically as a folder full of files inserted into Premier or do I save it as a mov?

Cheers

[Crazy Homeless Guy]

i wouldn't recommend using quicktime for this, the file size of the quicktime movies will be huge since you will want to work without compression.

 

use targa or tif as suggested, i typically use tif, but it doesn't matter, they are both lossless formats.

 

i don't know how premeire is, but in aftereffects, to import the file sequence, open import dialog box, select the first image in the sequence, then there will be a check box telling it that there is an image sequence. it will automatically find the similar numbered sequence, and import them as a set. preimere should be similar since they are both made by adobe.

[Ernest Burden III]

in aftereffects, to import the file sequence, open import dialog box, select the first image in the sequence, then there will be a check box telling it that there is an image sequence. it will automatically find the similar numbered sequence, and import them as a set. preimere should be similar since they are both made by adobe.

 

Yes, Premiere does the same. Remember to use 'import' and not 'open'. Also, be careful to keep your files sequential--any missing files and the import stops right there.

[casa]

Dear all,

 

tga and tif files are the best file formats for compositing. In Combustion you have the options to import your footage as Colour only, Alpha only or Colour + Alpha together and you do not have to define this before importing them. You can allways choose these options later at any time. When you import (in Combustion) your picture files (or sequences) into the program as Clolour + Alpha and you have defined a background layer before, the software automatically composes the picture files by removing the black or whatever background they have onto the background layer you defined before.

 

This is done perfectly and you have no surrounding colours on the edges you described.

I don't know Pemiere but it should have a similar option using the Alpha channel imformation. This is essential.

 

casa