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.