I can promise it won't happen unless the image metadata is correct, to trigger the right media properties. Right now with PNG images from the wild, that's about 70-30 odds IME.

For the 30%, we have to set the alpha channel in Media Properties, sorry about that.

The question is: PNG images it is very rare to need to change the properties. Already alpha videos ALWAYS need.

Now I understand your question better.

Relatively few video RGBA (alpha) formats allow import into Vegas with their alpha channels intact.

Of those few, one often needs to change the Project Properties, due to incorrect metadata written by the encoding application. Vegas can't do a thing to detect alpha unless it is in the metadata. That is the limitation. We are talking about internal metadata, not the kind reported by MediaInfo.

I'm sure you already know that Vegas cannot create an alpha layer in media that does not already contain one. You can, however, create masks.

If you have further concerns, post an actual sample of your RGBA footage to Drive or Dropbox (only), and we'll be happy to take a look at it and report it to the development team if there is any inconsistency.

A good example is when we render a video in alpha in Vegas itself and we import this video to a new project in Vegas and even so we need to change the properties. In Premiere, you don't need to. Alpha videos are already active.

It makes no sense for vegas not to recognize a file that has been rendered in it.

You hadn't said that before. Please post an example of a file encoded with alpha in Vegas that does not open with alpha in Vegas to Drive or Dropbox as was suggested. You may be asked for other information, here's what you can expect.

https://www.vegascreativesoftware.info/us/forum/important-information-required-to-help-you--110457/

I agree with you; files encoded with alpha in Vegas should open with alpha in Vegas (from transparent media or appropriate compositing or masking). Honestly, I don't recall encountering this before, but it's not impossible.

 

A good example is when we render a video in alpha in Vegas itself and we import this video to a new project in Vegas and even so we need to change the properties. In Premiere, you don't need to. Alpha videos are already active.

Which codec in Vegas renders video with alpha (besides uncompressed avi)?

I remember that I used Quiktime years ago to get video with alpha channel and those files were directly recognised by Vegas.

Of three likely candidates, ProResXQ, MagicYUV RGBA and Uncompressed (both in an AVI wrapper), only ProResXQ has an active alpha channel when brought into a Vegas Pro 20-214 project. All three can be turned on in event properties.

This disadvantage of creating extrem huge files with alpha, I didn't have with Quicktime.

Of three likely candidates, ProResXQ, MagicYUV RGBA and Uncompressed (both in an AVI wrapper), only ProResXQ has an active alpha channel when brought into a Vegas Pro 20-214 project. All three can be turned on in event properties.

Interesting. I use quicktime because it's lighter.

As I said, if it's a file rendered with Vegas itself, it would be nice if the alpha channel was always on. In quicktime videos. Not only in ProResXQ.

This disadvantage of creating extrem huge files with alpha, I didn't have with Quicktime.

Extremely heavy. It is infeasible to render in this format.

Can any dev comment on this? 😩

Since you don't seem eager to provide a sample file, or even MediaInfo properties, I'm not sure a developer could help. Best of luck and welcome to the forum.

Since you don't seem eager to provide a sample file, or even MediaInfo properties, I'm not sure a developer could help. Best of luck and welcome to the forum.

 

But the file doesn't matter. I am requesting that vegas recognize alpha files automatically. And as I already explained, video rendered by Vegas itself in quicktime should work automatically in Vegas.
I don't need to send the file. You can render a quicktime video in alpha in your vegas and play it on the timeline that you will see.

Of three likely candidates, ProResXQ, MagicYUV RGBA and Uncompressed (both in an AVI wrapper), only ProResXQ has an active alpha channel when brought into a Vegas Pro 20-214 project. All three can be turned on in event properties.

@Musicvid My friend here has already demonstrated what I'm saying.

Quicktime. Ok then.

https://www.vegascreativesoftware.info/us/forum/speaking-good-video-a-beginner-s-guide--104463/

https://www.vegascreativesoftware.info/us/forum/important-information-required-to-help-you--110457/

Quicktime. Ok then.

https://www.vegascreativesoftware.info/us/forum/speaking-good-video-a-beginner-s-guide--104463/

https://www.vegascreativesoftware.info/us/forum/important-information-required-to-help-you--110457/

I'm not new to Vegas. I've been using it for over 10 years. I'm just new to the forum.

@m3lquixd

If you're creating these files with alpha channels for re-use in Vegas Pro, why not nest the project in your new master project? Pixel dimensions and transparency are maintained at the expense of increased processor utilization in the master project. File size is ~ equal to the size of the original assets in the nested project.

@m3lquixd

If you're creating these files with alpha channels for re-use in Vegas Pro, why not nest the project in your new master project? Pixel dimensions and transparency are maintained at the expense of increased processor utilization in the master project. File size is ~ equal to the size of the original assets in the nested project.

First, to not keep the files taking up space on my HD for the project to work.
Second, Vegas nested (at least on my machine and several friends of mine) is extremely buggy, vegas crashes a lot when it contains nested in the project. I avoid using nested as much as possible.

And just out of curiosity, this is an alpha intro I made in Vegas recently. I create videos in alpha for a long time in Vegas, so I would like it to work without having to change the file's properties.

I thought the way to change this was to right-click the video event, choose Properties, go to the Media tab, change to the desired Alpha option, and then click on the disk to "save" this as the default...