[Feature] Object Grouping 🏘

[davidrenne]

This is the single most powerful feature. CTRL+CLICK to select multiple objects and group together so you can move them frame by frame.

Either clicking something from the animation window or the sidebar with ctrl+click will select all and we have a group button show up and they animate. Finally will I not have to move things frame by frame with multiple objects.

[willbr]

It looks like it's designed around selecting single items.

https://github.com/foone/3DMMForever/blob/79b301091175459dd39ec53bbb8a711248e969c6/inc/scene.h#L147-L148

[willbr]

We could replace _pactrSelected with a new PGL of selected actors.

https://github.com/foone/3DMMForever/blob/79b301091175459dd39ec53bbb8a711248e969c6/inc/scene.h#L141-L142

[willbr]

fcustCmd is used to track the state of the Ctrl key

https://github.com/foone/3DMMForever/blob/79b301091175459dd39ec53bbb8a711248e969c6/kauai/src/framedef.h#L70-L74

Here's an example:

https://github.com/foone/3DMMForever/blob/79b301091175459dd39ec53bbb8a711248e969c6/src/studio/stdioscb.cpp#L201-L212

[willbr]

Here's where the mouse drag handler queries the selected actor.

https://github.com/foone/3DMMForever/blob/79b301091175459dd39ec53bbb8a711248e969c6/src/engine/movie.cpp#L7298

[willbr]

Here's a quick proof of concept.

https://youtu.be/N_sE9byNVao

https://github.com/willbr/3DMMForever/commit/1c717e0d68c31e8faac36fd562abee48c1228179

[davidrenne]

@willbr you are a god

[frank-weindel]

That is so cool @willbr! Very clear analysis and it's really neat to see.

[davidrenne]

@frank-weindel is there a new repo that features like this can start to be integrated into builds. I'm just confused how foone wants to keep forever building and stable here in this repo but eventually have new builds with things like this. This is the first feature I've ever seen implemented based on animator feedback on github so I'm just not sure how all the maintainers are going to be compiling features for cool stuff like this.

[frank-weindel]

@davidrenne So I think a feature like this remains in scope for 3DMMForever as long as it doesn't break any backwards compatibility with movies/etc. It not requiring UI changes also helps.

[willbr]

We'd have to be careful with the hotkeys.

Ctrl & Shift are both used for dragging, so we don't want to break those.

[willbr]

It's working well so far.

https://youtu.be/j19fIvL7NDc https://github.com/willbr/3DMMForever/commits/group-test

It now uses a real list.

And, I've added a selection toggle, and Ctrl+A for select all actors.