Ray tracing 光线追踪之 embree ，从入门到精通 02 从源码编译与安装

news/2024/4/20 4:56:04/文章来源:https://blog.csdn.net/eloudy/article/details/127626591

1. 下载预编译的ispc，安装

网址： https://ispc.github.io

resources -> github page

进入ispc 的github的release页：Releases · ispc/ispc · GitHub

找到一个预编译好了的ispc，其中在windows平台上是：https://github.com/ispc/ispc/releases/download/v1.18.0/ispc-v1.18.0-windows.msi

下载安装。

2. 下载预编译的TBB，并解压至自选路径

https://github.com/oneapi-src/oneTBB/releases

https://github.com/oneapi-src/oneTBB/releases/download/v2021.7.0/oneapi-tbb-2021.7.0-win.zip

3.通过vcpkg 安装 OpenimageIO

3.1 下载vcpkg

3.1.1 进入网页
       https://github.com/microsoft/vcpkg

3.1.2 下载
       git clone --recursive https://github.com/microsoft/vcpkg.git

3.1.3 get vcpkg.exe

执行 E:\vcpkg>bootstrap-vcpkg.bat

3.2 安装OpenImageIO

E:\vcpkg>vcpkg.exe install OpenImageIO:x64-windows

这条命令的执行时间比较久，半个小时可能

4.设置CMake

4.1 ISPC

EMBREE_ISPC_EXECUTABLE 选中：D:\Program Files\ISPC\ispc-v1.18.0-windows\bin\ispc.exe 文件

4.2 TBB cmake能够自动搜索到

4.3 OpenImageIO 的设置

在cmake embree中是指环境变量：
OPENIMAGEIO_ROOT 为vcpkg中package的路径：E:\vcpkg\packages\openimageio_x86-windows

4.3.1 CMakeLists.txt中对OpenImageIO的使用方式：


The package openimageio provides CMake targets:find_package(OpenImageIO CONFIG REQUIRED)target_link_libraries(main PRIVATE OpenImageIO::OpenImageIO)


下载安装 ispc:https://github.com/ispc/ispc/releases下载解压 tbb：
https://github.com/oneapi-src/oneTBB/releasesgit clone --recursive https://github.com/microsoft/vcpkg.gitbootstrap-vcpkg.batvcpkg install openimageio在cmake embree中是指环境变量：
OPENIMAGEIO_ROOT  为vcpkg中package的路径：E:\vcpkg\packages\openimageio_x86-windows