Hi Magix (hopefully you are following this forum)
When Vegas plays back a PROXY file (.sfvp0) it also seems to turn off anti-aliasing or scaling, or downsamples the clip again!
I use Vegasaur to create 1920x1080 XDCAM EX MPEG-2 Proxies as Vegas Compatible .sfvp0 files.
When these proxies are played by Vegas they look very blocky, but when the same proxy file is duplicated and renamed without the .sfvp0 extension and bought back into Vegas as a normal MP4 file then it looks MUCH MUCH better and is the perfect proxy. The very same files, bit for bit identical.
I am assuming that Vegas is disabling anti-aliasing or scaling of the proxy file, or else is downsampling it again, whenever it knows it's using a proxy with extension .sfvp0
PLEASE PLEASE sort this, as it is otherwise the perfect workflow.
I had a look in the INTERNALS tab, and I can see two options shown:
Video Proxy Renderer GUID and Video Proxy Render Template GUID
both of these have HEX code values so can't just be simply changed.
Why is Vegas lowering the proxy quality again? These proxy files play back perfectly at beautiful quality in Real Time in Best Full, but they are useless when handled by Vegas as proxies because it just makes them blocky.
The only temporary solution is to Replace Media and switch the Originals for the Proxies, and then change them back before rendering.
Please can this be fixed, or even add a simple tick box to not turn off anti-aliasing (or whatever) when handling the proxies.