Snapping to guides doesn't behave correctly.

[andybak]

There seems to be an odd offset when you import a 3d model, turn on "snap to guides" in the snap settings and try and align copies of the model on the guide.

[eeropomell]

This is happening to me when exporting from Blender for 3D models that are not on the origin. Happens with both fbx and glb.

Should I fix this so that it works the same for models that are exported while on the origin and models that are exported while somewhere else, or should we just specify the correct way to export?

Here is a model exported on the origin (0,0,0):

And the same model exported on (0,0,3):

Below is a video of how they work differently in Open Brush. The model (the 1st model in the video) that is exported on (0,0,3) has the offset applied when snapping to the guide.

Vid: https://imgur.com/a/FUlvGD9

[andybak]

I'm trying to think of some of the factors that impact on making a decision about this. A couple of scenarios:

1. A user constructs a complex Blender scene and then exports parts of it separately. When importing them into Open Brush should they keep their position relative to each other?

2. A user creates say a sword where the pivot is very specific to the geometry (midway down the handle for example)

I think a good default might be to reset the pivot of an object to be centered but allow an easy way to either override this or revert to the original pivot.

I have plans for much more functionality around pivots so we can iterate on this but I guess the question is "what shall we do now?" This issue is really about a specific behaviour with snapping. I think we should open another issue if we want to discuss changing the default pivot point for imports.