I was playing around with outputting from Ventuz with a Huffy codec. Now that Ventuz correctly supports the alpha channel I decided to do some tests.
My thinking must be totally wrong as I thought that with no alpha channel it would be 24 bits of data. RGB or YUV with 8 bits each. Adding an alpha channel would be another 8 bits so data rate and file size would be about 1/3rd bigger. Why when I render out is the alpha version twice the file size?
When I use the animation codec it is only about a 1/3 larger.
Regards
Peter
Hello Ventuzians!
THE FORUMS ARE CLOSED!
Please join our discord server HERE!! << click me
We are shutting our Ventuz Forum, but don't worry, it will all be archived for you to search in if you have a query. From now on, please add all your comments, questions or observations into our Discord Server
Thanks for the great time - see you on discord!!
Dee, Karol, Daniel and the whoooole Product and Support team!
THE FORUMS ARE CLOSED!
Please join our discord server HERE!! << click me
We are shutting our Ventuz Forum, but don't worry, it will all be archived for you to search in if you have a query. From now on, please add all your comments, questions or observations into our Discord Server
Thanks for the great time - see you on discord!!
Dee, Karol, Daniel and the whoooole Product and Support team!
Alpha Channel doubles the size & data rate?
Moderator: Support
Re: Alpha Channel doubles the size & data rate?
This is one of the peculiarities of the HuffYuv codec - when there's no alpha channel it encodes the image as YUV with 4:2:2 sampling, but as soon as you add alpha it can only encode RGBA 4:4:4 which compresses way worse.
So this behaviour is unfortunate but expected.
Best regards.
Tammo
So this behaviour is unfortunate but expected.
Best regards.
Tammo