Green Screen Smoke FX Usage

MikeLV wrote on 1/11/2024, 6:19 PM

I found this effect, and others like it: Can I use this effect with Vegas Pro 17? If so, is there a tutorial available that shows how to use such a video on the timeline to get the smoke effect into my video? Thanks!

Comments

Dexcon wrote on 1/11/2024, 7:17 PM

From the YT channel, you will need a YT Premium subscription in order to download this video to see what format (e.g. .mp4/,mov/etc) is video is provided in. As I don't have a YT Premium subscription (or want to trial it), it's hard to say if the format will be compatible with Vegas Pro 17 - and the YT channel information doesn't state the format. The only downlaod options for this video are 480p and 720p.

My best guess is that the video will be a video event (e.g. .mp4 or .mov) that is placed on an upper video track on VP's timeline and then the VEGAS Chroma Keyer FX applied to the green screen smoke event (chromakey is a YT keyword for the YT video) so that the green color is replaced by the image in the video event on the lower track.

YT has heaps of tutorials about chroma keying in Vegas Pro 17: https://www.youtube.com/results?search_query=vegas+pro+17+chroma+key

You'd need to contact 'greenscreentopfree' to see if they've got any tutorials specifically relating to their products.

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

Installed: Vegas Pro 16, 17, 18, 19, 20 & 21, HitFilm Pro 2021.3, DaVinci Resolve Studio 18.5, BCC 2023.5, Mocha Pro 2023, Ignite Pro, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX10 Advanced and many other iZ plugins, Vegasaur 4.0

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MikeLV wrote on 1/11/2024, 7:29 PM

Thanks, I downloaded the video from Youtube and here is what the MediaInfo says. Based on this info, will it work in Vegas? I didn't even think to look on youtube for the tutorial about how to use it, thanks for that too.

Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 13.8 MiB
Duration                                 : 1 min 0 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 1 916 kb/s
Movie name                               : FREE Green screen smoke effects chroma key fog effects overlay vfx footage smoke fog
Writing application                      : Lavf58.29.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 3 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 3 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 1 min 0 s
Bit rate                                 : 1 782 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.029
Stream size                              : 12.8 MiB (93%)
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 1 min 0 s
Bit rate mode                            : Variable
Bit rate                                 : 128 kb/s
Maximum bit rate                         : 130 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 943 KiB (7%)
Default                                  : Yes
Alternate group                          : 1

RogerS wrote on 1/11/2024, 7:40 PM

Would it be better to have a smoke effect with an alpha channel (mov) to just add the fog?

That said, chroma key or color corrector secondary should work as it's all green.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD, Windows 11 Pro 64 bit

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VEGAS Pro 20.411
VEGAS Pro 21.208

Try the
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VEGAS Pro 20 "Ad" benchmark: https://forms.gle/eErJTR87K2bbJc4Q7

MikeLV wrote on 1/11/2024, 7:42 PM

with an alpha channel (mov) to just add the fog?

I don't follow what you mean by with an alpha channel. Are you referring to this youtube video, or something different?

RogerS wrote on 1/11/2024, 7:49 PM

I am commenting on the use of a fog effect.

Please do a search for transparency in video which is built in with an alpha channel or computed using a chroma key.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD, Windows 11 Pro 64 bit

Dell XPS 15 laptop (2017) 32GB ram, NVIDIA 1050 (4GB) with latest studio driver, Intel i7-7700HQ with Intel 630 iGPU (latest available driver), dual internal SSD (1TB; 1TB), Windows 10 64 bit

VEGAS Pro 19.651
VEGAS Pro 20.411
VEGAS Pro 21.208

Try the
VEGAS 4K "sample project" benchmark: https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark: https://forms.gle/eErJTR87K2bbJc4Q7

Reyfox wrote on 1/12/2024, 4:18 AM

@MikeLV, I downloaded the file, dropped on the timeline, placed an image under it, dropped Vegas Chroma Keyer on it, used the Color Picker and presto... not quite as good as an alpha channel, but it works.

 

MikeLV wrote on 1/12/2024, 9:18 AM

@Reyfox awesome, thank you for that screenshot; I will give it a try!

MikeLV wrote on 1/15/2024, 1:11 PM

I got the hang of the chroma keyer effect with the green screen files from youtube.. The only issue now is that the smoke dissipates too quickly. I need it to hide the subject for a longer period of time. What would be the best way to extend the short effect? Should I duplicate it and crossfade several events?

mark-y wrote on 1/15/2024, 1:15 PM

Vegas Slow Motion fx should work quite well. It uses optical flow, and is very smooth.

 

Reyfox wrote on 1/15/2024, 3:20 PM

Layer the smoke. Look for more of it. Stretch the event (slowing it down) to see how it looks. Ctrl +Left Mouse button to drag the end of the smoke clip.

MikeLV wrote on 1/15/2024, 4:56 PM

Combination of pan/crop, stretching, etc. seems to achieve what I need. I need a faster computer to do this kind of stuff apparently! I had to put the video preview on draft just to halfway be able to see it working 😅

Gid wrote on 1/15/2024, 5:22 PM

@MikeLV Hi, once you've removed the green using Chromakey or whatever you used to remove the green render it as a ProRes XQ, it will then have an alpha channel (smoke + a transparent background), replace the green clip on the timeline with the ProRes & it will play a lot easier on your PC.

Can you click your icon at the top of this page - My Profile & fill in your Signature with the full name of your CPU, GPU & amount of RAM, also inc the Windows & Vegas version, this will then show at the bottom of your comments,

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MikeLV wrote on 1/15/2024, 5:34 PM

Thanks, I added the signature. I normally use Happy Otter Scripts to do all my rendering to MP4, but under "render as" I don't see a format in the list called ProRes XQ. Maybe it wasn't available in v17?

Dexcon wrote on 1/15/2024, 7:11 PM

Maybe it wasn't available in v17?

It looks like that ProRes import and export first appeared in Vegas Pro 19 build 532.

Another method to get an alpha channel is to render to 'Video for Windows' but in Customize Template change the Video format to 'Uncompressed' and check 'Render alpha channel (for supported codecs only}'. Frame size can also be changed if need be. The downside is that the rendered .avi file size will be huge.

Last changed by Dexcon on 1/15/2024, 7:20 PM, changed a total of 1 times.

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

Installed: Vegas Pro 16, 17, 18, 19, 20 & 21, HitFilm Pro 2021.3, DaVinci Resolve Studio 18.5, BCC 2023.5, Mocha Pro 2023, Ignite Pro, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX10 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

Gid wrote on 1/15/2024, 7:35 PM

Maybe it wasn't available in v17?

@MikeLV Ah sorry, I didn't take that into account.

Vegas Pro 21 
Magix Movie Studio Platinum 2024 - from 2004-ish - Latest version,
Magix VPX14
Boris Continuum & Sapphire, 
Silhouette Standalone + Plugin, 
Mocha Pro Standalone + Plugin, 
Boris Optics,
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, 

I'm 55, I've been a UK joiner for 39yrs, apprentice trained & time served, I make videos about my work & post them on Youtube so that I can share what I've learnt over the yrs,
https://www.youtube.com/c/Gidjoiner

At the moment my filming is done with a Samsung Galaxy S23 Ultra 

RogerS wrote on 1/15/2024, 8:20 PM

In somewhat older versions of VEGAS it was unofficial ProRes and called "Magix Intermediate." It is functionally the same.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD, Windows 11 Pro 64 bit

Dell XPS 15 laptop (2017) 32GB ram, NVIDIA 1050 (4GB) with latest studio driver, Intel i7-7700HQ with Intel 630 iGPU (latest available driver), dual internal SSD (1TB; 1TB), Windows 10 64 bit

VEGAS Pro 19.651
VEGAS Pro 20.411
VEGAS Pro 21.208

Try the
VEGAS 4K "sample project" benchmark: https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark: https://forms.gle/eErJTR87K2bbJc4Q7

MikeLV wrote on 1/19/2024, 12:15 PM

I'm about to give this a try with the Magix Intermediate, but I notice there's several render templates to choose from:

My smoke clip is 1920x1080 at 60FPS, but the footage I'm going to use it with is 29.97FPS, so not entirely sure what to do here. Can I use the 60fps smoke with 29.97fps footage? Or should I encode the smoke to 29.97fps? And do I use 422, HQ or XQ? Thanks for your help!

 

MikeLV wrote on 1/19/2024, 4:50 PM

Well this isn't good...... I rendered the chroma keyed smoke clip to "Intermediate XQ 29.97" as that was what @Gid said. I then dropped the rendered file on the top track of my video project, and it's just black behind the smoke, not transparent as he advised. Is there another step needed when putting the XQ clip onto my timeline to make it transparent? I also tried the 422 and HQ options, and they too were not transparent when I put them on the timeline.

DMT3 wrote on 1/19/2024, 5:21 PM

As long as you rendered it with an Alpha Channel, once you bring it back into Vegas you have to tell it, under properties, that is has an alpha channe.

MikeLV wrote on 1/19/2024, 5:31 PM

As long as you rendered it with an Alpha Channel, once you bring it back into Vegas you have to tell it, under properties, that is has an alpha channe.

When I go to the customize settings for Intermediate XQ, this is what it shows under the profiles. And there's nowhere else in the settings there that says "alpha channel"

DMT3 wrote on 1/19/2024, 5:45 PM

The Magix intermediate may not support Alpha. You can use an uncompressed AVI format or any other format that does support alpha.What options do you have under the color space?

MikeLV wrote on 1/19/2024, 5:48 PM

In the video tab, just "default" but in the project tab, there are tons of color space options

DMT3 wrote on 1/19/2024, 5:50 PM

It would need to be the video tab. QT used to use the term "millions of colors +" to signify an alpha channel would be created.

MikeLV wrote on 1/19/2024, 6:28 PM

We decided to scrap the smoke effect; not enough time to get it done and where it looks good. Thanks for your help though. It's nice to know these green screen effects exist, and I learned how to use the chrome keyer too!