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Mouse picking #23

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kvark opened this issue Jun 8, 2017 · 5 comments · May be fixed by #43
Open

Mouse picking #23

kvark opened this issue Jun 8, 2017 · 5 comments · May be fixed by #43
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@kvark
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kvark commented Jun 8, 2017

Three.js employs a generic raycasting model for picking:
https://threejs.org/docs/#api/core/Raycaster

We could make it work with roughly the following API:

let raycaster = three::RayCaster::from_camera(mouse_coords, &cam);
for (name, world_transform, material) in raycaster.cast(&scene) {
  // do something
}

Clearly, we'd want the nodes to be named for this to be convenient.
@kvark kvark added the feature label Jun 8, 2017
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vitvakatu commented Jun 15, 2017 •
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Maybe it's better to return NodeInfo rather than (name, world_transform, material)?

@kvark kvark self-assigned this Jun 20, 2017
@kvark kvark linked a pull request Jun 25, 2017 that will close this issue
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alteous commented Aug 16, 2017

How would you feel about Mesh holding onto an Arc<Geometry>? This would be useful for mouse picking against geometry.

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alteous commented Aug 16, 2017

It might be overkill to be mouse picking on individual triangles. Perhaps we could have a Collider abstraction?

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alteous commented Aug 16, 2017

Maybe it's better to return NodeInfo rather than (name, world_transform, material)?

Also, how about returning some unique integer ID instead of a name?

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I would like to return smth like NodeInfo. I'm not sure user needs access to triangles, by the way.
name seems useless for me, I'd like to see node pointer instead.

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[WIP] Ray casting three-rs/three
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