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# - Find OptiX library
# Find the native OptiX includes and library
# This module defines
# OPTIX_INCLUDE_DIRS, where to find optix.h, Set when
# OPTIX_INCLUDE_DIR is found.
# OPTIX_ROOT_DIR, The base directory to search for OptiX.
# This can also be an environment variable.
# OPTIX_FOUND, If false, do not try to use OptiX.
#=============================================================================
# Copyright 2019 Blender Foundation.
#
# Distributed under the OSI-approved BSD 3-Clause License,
# see accompanying file BSD-3-Clause-license.txt for details.
#=============================================================================
# If OPTIX_ROOT_DIR was defined in the environment, use it.
IF(NOT OPTIX_ROOT_DIR AND NOT $ENV{OPTIX_ROOT_DIR} STREQUAL "")
SET(OPTIX_ROOT_DIR $ENV{OPTIX_ROOT_DIR})
ENDIF()
SET(_optix_SEARCH_DIRS
${OPTIX_ROOT_DIR}
"$ENV{PROGRAMDATA}/NVIDIA Corporation/OptiX SDK 7.0.0"
)
FIND_PATH(OPTIX_INCLUDE_DIR
NAMES
optix.h
HINTS
${_optix_SEARCH_DIRS}
PATH_SUFFIXES
include
)
IF(EXISTS "${OPTIX_INCLUDE_DIR}/optix.h")
FILE(STRINGS "${OPTIX_INCLUDE_DIR}/optix.h" _optix_version REGEX "^#define OPTIX_VERSION[ \t].*$")
STRING(REGEX MATCHALL "[0-9]+" _optix_version ${_optix_version})
MATH(EXPR _optix_version_major "${_optix_version} / 10000")
MATH(EXPR _optix_version_minor "(${_optix_version} % 10000) / 100")
MATH(EXPR _optix_version_patch "${_optix_version} % 100")
SET(OPTIX_VERSION "${_optix_version_major}.${_optix_version_minor}.${_optix_version_patch}")
ENDIF()
# handle the QUIETLY and REQUIRED arguments and set OPTIX_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(OptiX
REQUIRED_VARS OPTIX_INCLUDE_DIR
VERSION_VAR OPTIX_VERSION)
IF(OPTIX_FOUND)
SET(OPTIX_INCLUDE_DIRS ${OPTIX_INCLUDE_DIR})
ENDIF()
MARK_AS_ADVANCED(
OPTIX_INCLUDE_DIR
OPTIX_VERSION
)
UNSET(_optix_SEARCH_DIRS)
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