Posts by twinbee

But even if they are using the reduced colour range, why would it work for you, but not me?

By the way, to narrow it down further, I have the same colour matching problem with Vegas Pro 15 as well.

That's strange. I went through all the steps exactly in my first post, and I'm still getting washed out whites/blacks. Below is an image. Any idea what could be up? I set all Vegas Pro Options->Preferences to their defaults. Project settings are attached to this post. Are you using Vegas Pro 20?

By the way, I'm using "4:4:4 10 bit alpha, Audio: none" so I can create mp4 files, though the same problem happens with the slight variant "Audio: project default", where I'm forced to create a .mov file. Any chance of allowing mp4 creation for video+audio files, since Chrome doesn't directly support .mov.

Sorry to say both problems still occur for me: For the 4:4:4 variant, the near-whites are washed out to 255, and the near-blacks are washed out to 0. And the template problem still seems to happen where if I select a 4:2:0 profile, and then edit it to become 4:4:4, it unfortunately produces the usual chroma subsampling colour artifacts as if it were still 4:2:0.

As well as the general Voukoder version, can you put the Voukoder connector version in the GUI as well ? It's 1.6.0.1, but I can't see that anywhere. Just nice to know I'm running the latest.

I can verify rsmith's experience. Although the 4:4:4 is washed out at the extremes (looks like a bug), the 4:2:0 image (with a template created from fresh) looks good and the chroma subsampling sections are as expected. I found the 6 primary / secondary colours almost exactly the same as the original TIF using an eye dropper tool.

And yes, there definitely seems something up with the template system too. Creating the 4:4:4 template and then giving that template a name such as "My444template", reusing that template, and then selecting the 4:2:0 template from the *Voukoder 11.3.2 dialog window* produces washed out colours - as if it was still the 4:4:4 template behind the scenes. Very confusing.

Vouk: I wonder if you can simplify things a little by putting the Output tab settings on the same tab as the Video tab? There's so few options in the Output tab, and it's awkward to switch back and forwards a couple of times. To newcomers, it's also not immediately obvious that new settings in the Output tab -> Container dropdown are available once you change the codec in the Video tab.

Hi all, I'm having some trouble getting the Voukoder codec to properly render colour on the latest Vegas Pro 20. I tried asking at the Vegas Pro forum, but to no avail.

Here's what the original looks like: https://i.imgur.com/v8ZWecy.png

Here's a screenshot from the Vegas-rendered video (not the same!): https://i.imgur.com/i14gkut.png

Here are all the steps to reproduce the problem:

1: Go to this site, and download the 1920*1080 testchart.tif file: https://www.belle-nuit.com/test-chart

2: Open Vegas Pro (preferably v20.0 Build 139), and import the picture, making it last for a second or so.

3: Select "Render as..." and then select the Voukoder option, followed by the "4:4:4 10 bit alpha" variant.

4: Click "Customize template...", then: "Show Voukoder dialog".

5: In the Video tab, select the H.264 codec, then from the Output tab, select "MPEG-4 (.mp4)". Go back to the video tab, and select "4:4:4 General purpose, 10bit projects", finally click "Apply", then "OK".

6: Close off the Voukoder windows, by clicking the OK button, then OK on the next.

7: Render out the mp4 file to a location on your drive.

8: Now finally compare the rendered MP4 file (in say Classic Media Player or Chrome/Firefox/Waterfox), and switch between that and the original TIF file (opened in a picture viewer or Chrome). You'll see that the Vegas rendered version has whites and blacks which are washed out (e.g: what should be R=239,G=239,B=239 looks like 255,255,255). All the six colours are a bit different too in brightness or saturation.

I don't get the same problem when I render with Vegas' default MainConcept H264 codec at 1920x1080, so I'm wondering what Voukoder is doing that it shouldn't be.