@michael-harrison I don't know about what After Effects can do, but have you tried this?

When I want to see every frame play back fully rendered, I use that scrub control in the track list. Of course I don't watch the entire video this way.

If you don't mind playing back at a very slow rate, you might be able see all the frames played back fully rendered by using the scrub control. I don't actually scrub. I entered 0,02, for example, for the rate and clicked the play button and was able to see every frame play back fully rendered (lots of effects piled on with non-default settings). Although the playback is slow, the preview playback fps shows the project frame rate of 59.94 fps. Anything less means not every frame is played back.

I'm not sure how low the rate can go, but I tried 0,0001, and that worked even though the last two decimal places don't show.

P-R-E-R-E-N-D-E-R

@Musicvid at certain points in the process a render test is appropriate but at most other stages a pre-render would be the wrong thing to do. A little like color grading. It needs to be done at the right time.

@Robert Johnston I'll have to try that. Being able to play as fast as it's capable, automatically, would be preferable but if I can keep the play rate close, that would be workable.

@wwaag Thanks, I'll give that a look

The debate between Vegas prerender and Adobe-style background render has been around for decades. Both have major downsides, that is for certain. What I do know is that in Vegas, the decision by Sonic Foundry was deliberate, and neither Sony nor Magix so far has chosen to revisit.

You can look at FCP and Hitfilm/VEGAS Effects' pre-render.

I don't think he wants pre-render, background render or any optimised stuff, but rather on the fly playback of all frames without having to do a setup before hand. Instead of dropping frames, the playback slows down. I find it handy and unlike some modes/functions it would seem like it would be very easy to implement. Playback should be 60fps, but playback is reduced so all frames can be previewed, then set back to normal mode that would drop frames

The noise on transitions is not an effect, it's audio distorting due to slowing down

"but rather on the fly playback of all frames without having to do a setup before hand".

Agree completely. Just to be clear, the dialog shown on HOS KwikPreview is only seen during initial set-up in which the user decides the type of preview, frame-size of the preview, rendering codec to be used, etc. Once done, there is a checkbox to hide the dialog on future runs. At that point, the user sets the render loop and runs the preview, just like Shift-B. A keyboard shortcut could also be assigned.

An advantage of an external preview app, in this case MPC-HC, is that the user can speed up or slow down the preview or just advance frame-by-frame.

Nice tools of wwaag !

We noticed here that starting from vegas pro 17 build 387 and onwards ( including vegas pro 18 ) , the RAM dynamic preview only working when project properties are 8 bit and not anymore when project properties are 32 bit full level . It's a feature we have been using all the time since sony versions and when creating clips with lots of FX and/o bezier masking and in order to almost instantly realtime previewing the result at full frame rate . When 32 bit full level is chosen , the dynamic RAM preview gives insane results ( 3 frames , 6 frames , 1.5 frames ,.. ) . Our lots of RAM ( 128 GB ) installed is meant to be used .....