0.5.0: Rewrite all the underlying CUDA. Speedup and Benchmarking. (#182)

* importance_sampling with test

* package importance_sampling

* compute_intervals tested and packaged

* compute_intervals_v2

* bicycle is failing

* fix cut in compute_intervals_v2, test pass for rendering

* hacky way to get opaque_bkgd work

* reorg ING

* PackedRaySegmentsSpec

* chunk_ids -> ray_ids

* binary -> occupied

* test_traverse_grid_basic checked

* fix traverse_grid with step size, checked

* support max_step_size, not verified

* _cuda and cuda; upgrade ray_marching

* inclusive scan

* test_exclusive_sum but seems to have numeric error

* inclusive_sum_backward verified

* exclusive sum backward

* merge fwd and bwd for scan

* inclusive & exclusive prod verified

* support normal scan with torch funcs

* rendering and tests

* a bit clean up

* importance_sampling verified

* stratified for importance_sampling

* importance_sampling in pdf.py

* RaySegmentsSp...

nerfacc/version.py

@@ -2,4 +2,4 @@
 Copyright (c) 2022 Ruilong Li, UC Berkeley.
 """
 
-__version__ = "0.4.0"
+__version__ = "0.5.0"

setup.cfg

@@ -2,4 +2,4 @@
 multi_line_output = 3
 line_length = 80
 include_trailing_comma = true
-skip=./examples/pycolmap
\ No newline at end of file
+skip=./examples/pycolmap,./benchmarks
\ No newline at end of file