Implement a snap-to functionality when placing another object

[saumac]

Im working on a measurement tool where the users places two points and a line is drawn between them. Im wondering if anyone has an idea of how to implement a generic snap-to functionality that is applied when users pointer is "near" another existing object in the scene?

Im not so curious about technical details but more on a concept/high-level? Any ideas or advices? (we have looked at using rays and looping over whole scene but Im more curious if there is a more performant way of doing this).

[chrislicodes]

Hey, did you find a good solution to this problem?

[saumac]

Hi,

Im in the middle of implementing a potential solution but the concept is not great yet. Any ideas from your side?

Are/Have you looked into something similar?

[netanelben]

@saumac I have an idea, not sure about if this could work but worth give a thought:

would it be possible to create a sphere and position it in the x/y/z of each element with a snap feature.
that sphere will act as collision indicator (I assume using rays - im not familiar with another method ATM) - once any object enters this sphere, the snap function will be invoked forcing the object position to be set.