Few Questions About How Resolume Works

[gavspav]

Hello I've got a few questions about how Resolume works so I can think about how to optimize my set up.
Apologies if any of this has been covered somewhere but I couldn't find it.

DXV clips decompress on the GPU. After this does everything take place on the GPU - transforms/effects etc or are there some things which cause passing back to CPU and back again?

Is there some kind of preloading which happens automatically? I notice if I drag clips into a composition RAM use increases so I guess this is what happening. Does this preload depend on in and out points? Cue points?

Also notice if I delete a clip reported RAM use does not return to the level it was before the clip was loaded.

If I copy a clip then Avenue preloads another copy of it into RAM?
I ask because I have a composition where I am duplicating clips is I have a copy in each layer. I'm syncing clips from Live and this seems like the best way to be able to trigger clips into any layer. Perhaps using the trigger to active layer feature and managing the active layer would be a better idea but then one can only have one instance of a clip playing at a time I think.

So when the composition loads it preloads all the clips into RAM. I've read that some people have hundreds (thousands?) of clips in one composition - so is Ram the only thing to watch out for here? Apart from slow load times obviously.

Are there any reasons not to use long clips eg four minute music videos?

If anyone could shed some light on this it'd be great,

Thanks.

[Joris]

DXV clips decompress on the GPU. After this does everything take place on the GPU - transforms/effects etc or are there some things which cause passing back to CPU and back again?

As long as you use DXV, there is no CPU involved in creating the image.

Is there some kind of preloading which happens automatically?

Yes. In order to play back a Quicktime movie instantaneously, Resolume needs to 'line it up'. This is not pre-loading in the traditional sense of the word, but it does take up some memory for every loaded file.

Also notice if I delete a clip reported RAM use does not return to the level it was before the clip was loaded.

This shouldn't be the case.

Are there any reasons not to use long clips eg four minute music videos?

No. The big difference between traditional pre-loading and Resolume's current approach is that the length of the file doesn't matter.

[gavspav]

Thanks