Unable to get Alpha Channel for graphics

SnarfConsortium wrote on 5/23/2024, 9:09 PM

How do I remove the background from a Vegas Effects project? Whenever I make a composite shot in Vegas Effects it has a black background, but I do not have any options to make it an empty alpha background and whenever I pull the project into Vegas Pro or render it out, the black background persists.

Comments

Dexcon wrote on 5/23/2024, 10:37 PM

The two render formats in Vegas Pro that can provide an alpha channel are AppleProRes or Video for Windows (.avi). With the latter, the custom settings window needs to be opened and the Video Format changed to 'Uncompressed' and the 'Render alpha channel' option checked on. The frame size can be changed if necessary to 'Custom frame size' and the W & H settings can then be changed manually.

With an alpha channel included, the blacks in the image/video should become transparent.

With either render format, the rendered file will be very large.

Last changed by Dexcon on 5/23/2024, 10:43 PM, changed a total of 1 times.

Cameras: Sony FDR-AX100E; GoPro Hero 11 Black Creator Edition

Installed: Vegas Pro 15, 16, 17, 18, 19, 20, 21 & 22, HitFilm Pro 2021.3, DaVinci Resolve Studio 19.0.3, BCC 2025, Mocha Pro 2025.0, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX11 Advanced and many other iZ plugins, Vegasaur 4.0

Windows 11

Dell Alienware Aurora 11:

10th Gen Intel i9 10900KF - 10 cores (20 threads) - 3.7 to 5.3 GHz

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64GB RAM - Dual Channel HyperX FURY DDR4 XMP at 3200MHz

C drive: 2TB Samsung 990 PCIe 4.0 NVMe M.2 PCIe SSD

D: drive: 4TB Samsung 870 SATA SSD (used for media for editing current projects)

E: drive: 2TB Samsung 870 SATA SSD

F: drive: 6TB WD 7200 rpm Black HDD 3.5"

Dell Ultrasharp 32" 4K Color Calibrated Monitor

 

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C Drive: 1TB Corsair Gen4 NVMe M.2 2230 SSD (upgraded from the original 500 GB SSD)

Monitor is 2560 x 1600 @ 60 Hz

Gid wrote on 5/24/2024, 3:43 AM

@SnarfConsortium Hi, In Vegas Effects (VE) choose 'Uncompressed AVI with Alpha' but in VE there's no ProRes, so I think @Dexcon misread your comment.

After Export - Add to Queue, in the Export window there's a Presets tab at the bottom where you can right click on the preset & change it, but it should already be set to RGBA & render out at the project size of your Composite Shot,

RGB is red, green, blue. RGBA is red, green, blue + Alpha.

When dragged into Vegas right click on the event on the timeline - Properties & change the Alpha Channel to Straight

Last changed by Gid on 5/24/2024, 4:06 AM, changed a total of 2 times.

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Dexcon wrote on 5/24/2024, 4:27 AM

This is very odd ... I did make a second edit to my comment that highlighted the export render formats within Vegas Effects which worked after hitting the Comment button and the "number of times changed' updated to 'two' - but that 2nd edit is no longer there. Cue Twilight Zone theme music.

EDIT: And I also mentioned that VE had a 'PNG Sequence with Alpha' render format option.

Last changed by Dexcon on 5/24/2024, 4:42 AM, changed a total of 1 times.

Cameras: Sony FDR-AX100E; GoPro Hero 11 Black Creator Edition

Installed: Vegas Pro 15, 16, 17, 18, 19, 20, 21 & 22, HitFilm Pro 2021.3, DaVinci Resolve Studio 19.0.3, BCC 2025, Mocha Pro 2025.0, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX11 Advanced and many other iZ plugins, Vegasaur 4.0

Windows 11

Dell Alienware Aurora 11:

10th Gen Intel i9 10900KF - 10 cores (20 threads) - 3.7 to 5.3 GHz

NVIDIA GeForce RTX 2080 SUPER 8GB GDDR6 - liquid cooled

64GB RAM - Dual Channel HyperX FURY DDR4 XMP at 3200MHz

C drive: 2TB Samsung 990 PCIe 4.0 NVMe M.2 PCIe SSD

D: drive: 4TB Samsung 870 SATA SSD (used for media for editing current projects)

E: drive: 2TB Samsung 870 SATA SSD

F: drive: 6TB WD 7200 rpm Black HDD 3.5"

Dell Ultrasharp 32" 4K Color Calibrated Monitor

 

LAPTOP:

Dell Inspiron 5310 EVO 13.3"

i5-11320H CPU

C Drive: 1TB Corsair Gen4 NVMe M.2 2230 SSD (upgraded from the original 500 GB SSD)

Monitor is 2560 x 1600 @ 60 Hz

Gid wrote on 5/24/2024, 4:50 AM

@Dexcon Yep bizarre, your comment is still relevant tho reg Alpha & file size, the short 4sec UHD clip I used for my pics above exported out from VE is 4.07GB 😂

I've been replying to comments on my YT vids & some of those replies have duplicated themselves 🤷‍♂️ I'll leave them & maybe YT will sort itself out.

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At the moment my filming is done with a Samsung Galaxy S23 Ultra 5G & a GoPro Hero11 Black

I've been a Joiner/Carpenter for 40yrs, apprentice trained time served, I don't have an apprentice of my own so to share my knowledge I put videos on YouTube.

YouTube videos - https://www.youtube.com/c/Gidjoiner

 

Gid wrote on 5/24/2024, 4:57 AM

EDIT: And I also mentioned that VE had a 'PNG Sequence with Alpha' render format option.

@Dexcon You edited while I was writing, Yeah I didn't want to confuse things by getting into Image sequences, but talking of confusion @SnarfConsortium says "but I do not have any options to make it an empty alpha background", which implies that they understand the need for an Alpha channel, In my pics it shows there's several 'with Alpha' options, So maybe it's just the need to change the Properties in Vegas to Straight that is the problem. ?

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Fractal Design Define 7 XL Dark TG Case with 3 Fans
Dell SE3223Q 31.5 Inch 4K UHD (3840x2160) Monitor, 60Hz, & an Acer 24" monitor.

At the moment my filming is done with a Samsung Galaxy S23 Ultra 5G & a GoPro Hero11 Black

I've been a Joiner/Carpenter for 40yrs, apprentice trained time served, I don't have an apprentice of my own so to share my knowledge I put videos on YouTube.

YouTube videos - https://www.youtube.com/c/Gidjoiner

 

Dexcon wrote on 5/24/2024, 5:11 AM

@Gid  ... many thanks - you've jogged my memory because, yes, the Alpha Channel field in the Properties/Media tab does indeed need to be coded with one of the alpha choices in order for the alpha channel to work on VP's timeline.

Cameras: Sony FDR-AX100E; GoPro Hero 11 Black Creator Edition

Installed: Vegas Pro 15, 16, 17, 18, 19, 20, 21 & 22, HitFilm Pro 2021.3, DaVinci Resolve Studio 19.0.3, BCC 2025, Mocha Pro 2025.0, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX11 Advanced and many other iZ plugins, Vegasaur 4.0

Windows 11

Dell Alienware Aurora 11:

10th Gen Intel i9 10900KF - 10 cores (20 threads) - 3.7 to 5.3 GHz

NVIDIA GeForce RTX 2080 SUPER 8GB GDDR6 - liquid cooled

64GB RAM - Dual Channel HyperX FURY DDR4 XMP at 3200MHz

C drive: 2TB Samsung 990 PCIe 4.0 NVMe M.2 PCIe SSD

D: drive: 4TB Samsung 870 SATA SSD (used for media for editing current projects)

E: drive: 2TB Samsung 870 SATA SSD

F: drive: 6TB WD 7200 rpm Black HDD 3.5"

Dell Ultrasharp 32" 4K Color Calibrated Monitor

 

LAPTOP:

Dell Inspiron 5310 EVO 13.3"

i5-11320H CPU

C Drive: 1TB Corsair Gen4 NVMe M.2 2230 SSD (upgraded from the original 500 GB SSD)

Monitor is 2560 x 1600 @ 60 Hz

MikeS wrote on 5/24/2024, 5:14 AM

If you roundtrip it from Vegas Pro - right-clicking a clip and selecting Edit in Vegas Effects from the menu - then the alpha is honoured.

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Gid wrote on 5/24/2024, 5:25 AM

@MikeS I opened VE as the standalone for the pics above, If I right click 'Edit in VE' I get this msg, I have 'close media files when Vegas is not the active application' unticked because it helps to stop crashing with nesting & switching to other apps such as Google etc., & in this new version (315) I think it is unticked by default now, Vegas's attempt at a 'fix' for this type of crashing. I wonder if VP21 Post now also get this msg..

---------------

Interestingly if I use HOS's option 'OpenPhotoEditor' (I use GIMP) to edit a photo I don't get that msg, so when it says media files it must just be ref to video not pictures 🤔🤷‍♂️

Last changed by Gid on 5/24/2024, 5:30 AM, changed a total of 1 times.

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(programs on one, project files on the other)
Graphics MSI GeForce RTX 3090 SUPRIM X 24GB OC GPU
ASUS ROG Thor 1200W Semi-Modular 80+ Platinum PSU 
Fractal Design Define 7 XL Dark TG Case with 3 Fans
Dell SE3223Q 31.5 Inch 4K UHD (3840x2160) Monitor, 60Hz, & an Acer 24" monitor.

At the moment my filming is done with a Samsung Galaxy S23 Ultra 5G & a GoPro Hero11 Black

I've been a Joiner/Carpenter for 40yrs, apprentice trained time served, I don't have an apprentice of my own so to share my knowledge I put videos on YouTube.

YouTube videos - https://www.youtube.com/c/Gidjoiner

 

MikeS wrote on 5/24/2024, 5:34 AM

Yep, that happens here as well - but I've not suffered any instability issues as a result. Maybe I'm just lucky.

But the inconvenience of reticking the box if you are one of the people that suffers is, I think, more than outweighed by the convenience and utility of the roundtrip.

Vegas Post 22.0 Build 239
Boris FX Continuum for OFX 2025 Build 18.0.1.303 - 74
Boris FX Mocha Pro Plug-in 2024.5 v11.5.1 Build 60
Windows 10 Pro - 64-Bit
ASUS PRIME Z390-P motherboard
Intel Core i7-97000K @ 3.6GHz
RAM 32GB (2x 16GB) 2666MHz DDR4
GeForce RTX 2070 SUPER

Dexcon wrote on 5/24/2024, 5:51 AM

The "close media files ..." checkbox also needs to be active when going to the preferred audio editor (e.g. Sound Forge, RX, Audacity) and the same message will also pop-up if it isn't checked; whereas the checkbox being checked isn't necessary when using HOS's 'OpenAudioEditor' which also enables your own choice of audio editor.

With the "close media files ..." checkbox, the good news is that enabling or disabling it doesn't require Vegas Pro to be closed down and reopened in order for the change of setting to take effect.

Cameras: Sony FDR-AX100E; GoPro Hero 11 Black Creator Edition

Installed: Vegas Pro 15, 16, 17, 18, 19, 20, 21 & 22, HitFilm Pro 2021.3, DaVinci Resolve Studio 19.0.3, BCC 2025, Mocha Pro 2025.0, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX11 Advanced and many other iZ plugins, Vegasaur 4.0

Windows 11

Dell Alienware Aurora 11:

10th Gen Intel i9 10900KF - 10 cores (20 threads) - 3.7 to 5.3 GHz

NVIDIA GeForce RTX 2080 SUPER 8GB GDDR6 - liquid cooled

64GB RAM - Dual Channel HyperX FURY DDR4 XMP at 3200MHz

C drive: 2TB Samsung 990 PCIe 4.0 NVMe M.2 PCIe SSD

D: drive: 4TB Samsung 870 SATA SSD (used for media for editing current projects)

E: drive: 2TB Samsung 870 SATA SSD

F: drive: 6TB WD 7200 rpm Black HDD 3.5"

Dell Ultrasharp 32" 4K Color Calibrated Monitor

 

LAPTOP:

Dell Inspiron 5310 EVO 13.3"

i5-11320H CPU

C Drive: 1TB Corsair Gen4 NVMe M.2 2230 SSD (upgraded from the original 500 GB SSD)

Monitor is 2560 x 1600 @ 60 Hz

Gid wrote on 5/24/2024, 5:54 AM

@SnarfConsortium Thanks for letting me know & yep, I only use VE for 3D OBJ CAD files & as before I open the standalone, so I'm happy to leave 'close media files when Vegas .......' unticked. (unticking it did help with nesting but I still got crashes, not as many as before but enough for me to not use that feature)

I have Hitfilm Pro, the version just before it went subscription I think, that did my OBJ files & as Hitfilm was dying I bought VP19 Post out of curiousity, I had problems transferring BCC effects back to Vegas from VE so that's as far as i went & didn't update it.

Vegas Pro 18 - 22
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Boris Continuum & Sapphire, 
Silhouette Standalone + Plugin, 
Mocha Pro Standalone + Plugin, 
Boris Optics,
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Desktop PC Microsoft Windows 10 Pro - 64-Bit
ASUS PRO WS WRX80E-SAGE SE WIFI AMD Motherboard
AMD Ryzen Threadripper PRO 3975WX 3.5GHz 32 Core
Corsair iCUE H150i RGB PRO XT 360mm All-in-One Liquid CPU Cooler
RAM 256GB ( 8x Micron 32GB (1x 32GB) 2666MHz DDR4 RAM )
2x Western Digital Black SN850 2TB M.2-2280 SSD, 7000MB/s Read, 5100MB/s Write
(programs on one, project files on the other)
Graphics MSI GeForce RTX 3090 SUPRIM X 24GB OC GPU
ASUS ROG Thor 1200W Semi-Modular 80+ Platinum PSU 
Fractal Design Define 7 XL Dark TG Case with 3 Fans
Dell SE3223Q 31.5 Inch 4K UHD (3840x2160) Monitor, 60Hz, & an Acer 24" monitor.

At the moment my filming is done with a Samsung Galaxy S23 Ultra 5G & a GoPro Hero11 Black

I've been a Joiner/Carpenter for 40yrs, apprentice trained time served, I don't have an apprentice of my own so to share my knowledge I put videos on YouTube.

YouTube videos - https://www.youtube.com/c/Gidjoiner