Mesh surrounding bounding box
Hi,
Im pretty new to reality capture, so excuse the ignorant question..
I'm experiencing a strange problem, I have a model of a large mine, which is somewhat trapezoidal in shape. Everything has come out well in the interior, but if I zoom out, there is this weird low poly mesh which has been created surrounding my model. Any thoughts as to what this is and why it has happened?
Thanks!
Im pretty new to reality capture, so excuse the ignorant question..
I'm experiencing a strange problem, I have a model of a large mine, which is somewhat trapezoidal in shape. Everything has come out well in the interior, but if I zoom out, there is this weird low poly mesh which has been created surrounding my model. Any thoughts as to what this is and why it has happened?
Thanks!
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Götz Echtenacher wrote:Hi Hexatron,
thats normal procedure in RC! :-)
Required by the algorythm to create the mesh, I believe.
You need to delete this stuff with a different software...
To surround my model in a box of mesh?? Surely not...!
It has never done that to other models I have made before. -
You sure?
It always does it to me! :-)
And others...
Typing "mesh" and "closed" in the search bar gave me amongst others this result:
Mesh not correct, surface is extended
Here you can read that it is normal and how to remove the unwanted triangles.
I did learn right now that it is possible within RC - so it was already worth it to me! :lol:
Is it possible that all the other models were not closed like the example you posted?
Because it it is only, say, a corner of a room, most often RC will have the closed parts on the bottom and the back of the model, so they don't interfere and could easily be missed... -
The software tries to generate a watertight mesh.
If it has not enough information on one side of the object it expands the mesh to the bounding box on that side.
In your case it likely assumed that the surface is on the *inside* of the mesh and thus did what you see here. It expanded the mesh to the bounding box. -
Götz Echtenacher wrote:You sure?
It always does it to me! :-)
And others...
Typing "mesh" and "closed" in the search bar gave me amongst others this result:
Mesh not correct, surface is extended
Here you can read that it is normal and how to remove the unwanted triangles.
I did learn right now that it is possible within RC - so it was already worth it to me! :lol:
Is it possible that all the other models were not closed like the example you posted?
Because it it is only, say, a corner of a room, most often RC will have the closed parts on the bottom and the back of the model, so they don't interfere and could easily be missed...
Great, I will look into this, thanks for your help. You are correct I think my other reconstructions were different enough for this not to happen.
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