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import os
from torch.utils.cpp_extension import load
_src_path = os.path.dirname(os.path.abspath(__file__))
nvcc_flags = [
'-O3', '-std=c++14',
'-U__CUDA_NO_HALF_OPERATORS__', '-U__CUDA_NO_HALF_CONVERSIONS__', '-U__CUDA_NO_HALF2_OPERATORS__',
]
if os.name == "posix":
c_flags = ['-O3', '-std=c++14']
elif os.name == "nt":
c_flags = ['/O2', '/std:c++17']
# find cl.exe
def find_cl_path():
import glob
for edition in ["Enterprise", "Professional", "BuildTools", "Community"]:
paths = sorted(glob.glob(r"C:\\Program Files (x86)\\Microsoft Visual Studio\\*\\%s\\VC\\Tools\\MSVC\\*\\bin\\Hostx64\\x64" % edition), reverse=True)
if paths:
return paths[0]
# If cl.exe is not on path, try to find it.
if os.system("where cl.exe >nul 2>nul") != 0:
cl_path = find_cl_path()
if cl_path is None:
raise RuntimeError("Could not locate a supported Microsoft Visual C++ installation")
os.environ["PATH"] += ";" + cl_path
_backend = load(name='_raymarching_face',
extra_cflags=c_flags,
extra_cuda_cflags=nvcc_flags,
sources=[os.path.join(_src_path, 'src', f) for f in [
'raymarching.cu',
'bindings.cpp',
]],
)
__all__ = ['_backend'] |