HFP4 RAM Preview different quality to Normal Edit view
While using RAM Preview to check something out, I noticed it doesn't look the same as the output does in the Edit window; it doesn't have any antialiasing applied when it's scaled-up, and looks blockier.
The result is the same with Antialiased or Full selected in the Edit window when doing the RAM preview.
The images below show it's more obvious when Zoomed-in, and antialiasing is not being done to the original pixels (720p video) in the RAM Preview version.
As the Edit window is only applying antialiasing to a scaled-up version, it wouldn't be an issue if the original source pixels are correct...but its also still noticeable (although harder to see) when the Edit window is at its normal 100% size (on a second monitor, BTW).
These two images were produced by RAM Previewing a section, pausing the video, then invalidating the Preview by toggling something that wouldn't actually change the video content: unlink/link on a scale parameter.
Proxy rendering seems to work as expected, and it is possible to enlarge a section and have it antialiased in the Edit window, but RAM Previewing a section that's already been proxied produces the same blocky result on that section.
As the final render is probably the same quality as the proxy method generates (as the proxies are used to save render time), it's probably not a real problem for the final output file; but why the difference?