@tengshaofeng can you fix it?

[jyhflash]

          @AIML @ortegatron @geopavlakos @johndpope @vchoutas 

I down load cuda-samples from "https://github.com/NVIDIA/cuda-samples"
and modify the setup.py to
"bvh_include_dirs = torch.utils.cpp_extension.include_paths() + [
'include',
'/usr/local/cuda/include',
'/home/ttb/code/smplify-x/torch-mesh-isect/cuda-samples/Common/'] ".
I am sure '/home/senwang/code/smplify-x/torch-mesh-isect/cuda-samples/Common/' include the helper_math.h.

but I still get error like

"ap_ninja_compile
_write_ninja_file_and_compile_objects(
File "/home/ttb/condaenvs/py38/lib/python3.8/site-packages/torch/utils/cpp_extension.py", line 1783, in _write_ninja_file_and_compile_objects
_run_ninja_build(
File "/home/ttb/condaenvs/py38/lib/python3.8/site-packages/torch/utils/cpp_extension.py", line 2123, in _run_ninja_build
raise RuntimeError(message) from e
RuntimeError: Error compiling objects for extensio"

Originally posted by @tengshaofeng in #9 (comment)