vieuxprof | 5 years ago | 6 comments | 1 like | 947 views
michiel likes this!
You need BluffTitler PRO (EASY doesn't support transparency) and BixPack 31.
Write your TEXTS as usual since you already know how to make a TITLE withBluffTitler.
Delete BACKGROUND CONTAINER. Your work is now on a black background. Save it
Export as VIDEO with TRANSPARENCY. It's still black... in the background.
In my Movie StudioPlatinum 15 from VEGAS, insert a video track on top of your main video track.
Add your BluffTitle with transparency to the new video track. Right click. Select PROPERTIES -> media -> Alpha -> STRAIGHT UNMATTED and save this.
Now the Bluff file and its track have a transparent background.
Voilà. It should be about the same procedure in another good video editor.
Hi,
I did not like the filesize of the AVI with transparency, so I used a green background, exported to mp4 (much smaller file size). In Magix Video Pro X (or Movie Edit Pro), I went to Chromakey and clicked on the green button. Worked perfectly. Just make sure that the good part does not use the same green.
JCB, 5 years ago
JCB.... green screen has been my choice many a time too.....
SMSgtRod, 5 years ago
Thank you for the tutorial!
I also always export uncompressed with transparency info. This gives you the best possible quality. Yes those files are huge, but that's irrelevant because those files are only temporary. The only thing that counts is the final video rendered by your NLE.
If you get nervous by huge file sizes I advise you not to take a look at the temporary files your NLE produces in its hidden folders ???
michiel, 5 years ago
With my experience in video processing, the best of the best in quality and size is as follows :
1- save your BT file as uncompressed AVI with transparency
2- use a ffmpeg script to convert in any format and extract the alpha channel
3- use the alpha channel file as a mask layer in your NLE.
A sample ffmpeg 2 lines script that does the job saved as a .bat file :
c:\FF\bin\ffmpeg -i BluffTitler.avi -vcodec libx264 -pix_fmt yuv420p -crf 15 -r 30 -s 3840x2160 your_output.mp4
c:\FF\bin\ffmpeg -i BluffTitler.avi -vf alphaextract,format=yuv420p -crf 15 -r 30 -s 3840x2160 your_output_alpha.mp4
In this example, it's supposed that ffmpeg is installed on c:\FF
The BluffTitler.avi file must be in the same directory as the .bat script
A few explanations :
-i : the input file
-vcodec.... : the codec used to convert (you may use other formats like yuv422p, ...)
-crf : the constant rate factor (from 1 : low compression to 51 high compression. 15-20 gives good results )
-r : the framerate (30 = 30 fps)
-s : the output resolution (may be omitted if you keep the same as the input)
You may download ffmpeg on the offical website : ffmpeg.org.... You may install it anywhere on your system.
Jeep35, 5 years ago
Vieuxprof solution has already discribed here several times and is the better solution with Vegas, more generally alpha channel solution is the better when possible, greenscreen is the worst solution except if you have not the choice : post processing of a live shooting or using an already existing video with no alpha. FFmpeg is a powerful tool and it is used in a lot of video converters.
vincent, 5 years ago
What matters is the number of lossy re-encodings. Compare these scenarios:
SCENARIO 1
-you export your title in BluffTitler as MP4
-you export your video, including your title, in your NLE as MP4
-you upload your video to YouTube
SCENARIO 2
-you export your title in BluffTitler as uncompressed AVI
-you use FFmpeg to encode your title to MP4
-you export your video, including your title, in your NLE as MP4
-you upload your video to YouTube
SCENARIO 3
-you export your title in BluffTitler as uncompressed AVI
-you export your video, including your title, in your NLE as MP4
-you upload your video to YouTube
In the 1st and 2nd scenarios your title is re-encoded twice: by your NLE and by YouTube.
In the 3rd scenario your video is re-encoded only once: by YouTube. This results in a much better quality.
michiel, 5 years ago