As a matter of fact if I try adding a very simple shape to the project on a new layer, say just a rectangle and I use that as the shape source for ‘Geometry’ for the particle system then again there is literally no difference at all! 🙁

From looking at the documentation on the Apple site the particles are meant to emit from that shape but they…

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Basically I’d like to initially have say particles that look like an upward flowing waterfall coming out of each of those shapes as they fall if that’s possible.

Next I’d like to be able to have the upward flowing waterfall only start when the notes have fallen past a certain vertical position but not sure if the first part is even possible yet…

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Hiya,

I tried selecting Geometry however I can’t drag the movie clip that has the ‘shapes’ on to it so that’s not working unfortunately.

I then tried ‘Image’ from that same setting as I had read that if you have an image with an alpha channel then they will emit from that and it did allow me to drag the movie in (I’ve made it an alpha channel movie…

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Hiya,

Thanks. Yes it’s the hands I need not the keys moving on their own. I’ve actually been a pianist since I was 3 (about 43 years now) and was very lucky to get to play on one of the very first grand pianos that could play back by itself. They’re pretty fun to watch those are!

Thanks for all the help everyone. I will give all of that a go and see…

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When you say shape though these are shapes that are in a video so not each one is separate they’re literally ‘baked’ into the video as it were. Basically a bit like if you were to imagine very large rain drops coming down in a video except it’s video and not separate shapes.

Will that work then? Will have to give that a go and see.

Thanks,

Mark

Actually I want to do the exact opposite 😉

I need to keep the hands and get rid of the keys. Was just hoping there might be some way to mask out the keys (keeping the hands) by using some colour controls or something but seems like you can only use those types of things on effects applied to video.

Will have to check out Track X and if that (or…

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Hi Mike,

Many thanks for that. Will take a look now.

Best wishes,

Mark

Hi there,

Very new to FCPX and mattes / masks and what not so please go gentle with me as I may ask the wrong thing or have something completely back to front here so apologies in advance.

I’m trying to somehow mask out hands that are playing a piano from the keys. I have the footage shot from a tripod looking directly down on the piano from above…

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Hi there,

I have a video with simple rectangular (slightly curved curners) falling from top to bottom in different places.

I’d like to create a particle emitter system which emits particles from these shapes as they’re falling.

I have made a very very simple and crude particle emitter but have no idea of how to make the particles emit from the shapes…

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