Nothing in the instant-ngp

[richard7714]

While following the readme, I got this error in the instant-NeRF gui.

With this error, i also have this error code.

I tried with gtsam fork, and also with borglab/gtsam, but couldn't fix this problem.

If anyone knows solution, comment me. Thanks.

[phamquandung]

Hi @richard7714, can you solve this problem?

[richard7714]

@phamquandung yes, it was the problem of gtsam/gtsam/linear/linear.i.

Like this comment #5 (comment), I added Vector vector(const gtsam::KeyVector& keys) const; to line 239 of
thirdparty/gtsam/gtsam/linear/linear.i and add gtsam::VectorValues optimizeDensely() const; to 415 of thirdparty/gtsam/gtsam/linear/linear.i.

On top of it, i also deleted Vector vector() const; of line 238 in linear.i

For the gtsam version, I used author's default fork version

[phamquandung]

Hi @richard7714, even though I fork the new version of gtsam and ngp. I still have this issue. How about your result?

[richard7714]

@phamquandung, Check your terminal and see if there is any error code. I guess it's the problem of your slam module. If it works properly, It goes like this

[songlin]

@phamquandung Hi, Do you solve the problem? I might have the same problem as you. I keep getting

Fusion packet from SLAM module is None...

and nothing shows in the GUI.