AABB normalized_positions to [-1, 1]
Previously, SceneBox.get_normalized_positions() returned a value in 0,1.
This was fine for InstantNGP and Nerfacto, which use these values directly in an MLP.
For TensoRF though, this was an error because grid sample expects values in the range [-1,1].
Thus, I think only 1/4th of the encoding planes were actually being used, and half of the
encoding lines were.
* staring normals PR
* code runs but visualization looks bad
* Camera and world coordinate conventions (#889)
* documented coordinate conventions without a figure for now
* another sentence
* update frames docs
* explain intrinsics and extrinsics
* more comments
* fix build
* Start viewer with more accurate speed calculation (#899)
Start viewer with more accurate speed calc
* Minor doc updates (#903)
* fix conflicts
* code runs but visualization looks bad
* normals implemented and vis fixed. still debugging quality
* minor name change
* comment
* fix black
* lint
* predicting normals
* adding detach
* predicted normals
* improved normals prediction performance
* cleaning code
* cleaning code
* cleaning code
* adding type to function param
* fixing tensorf forward func
* reverting tensorf changes
* fix style with tensorf field
* adding normals check to tensorffield
Co-authored-by: Matthew Tancik <tancik@berkeley.edu>
Co-authored-by: terrance <terrance.3512@gmail.com>
