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install.md
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install.md
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# Install
- Ubuntu Linux x64 19.10
Downloaded SDKs from Nvidia developer site.
```
# needs to be writeable by user
mkdir -p /usr/local/nvidia/
sh NVIDIA-OptiX-SDK-6.5.0-linux64.sh --skip-license \
--prefix=/usr/local/nvidia --include-subdir
sh NVIDIA-OptiX-SDK-7.0.0-linux64.sh --skip-license \
--prefix=/usr/local/nvidia --include-subdir
```
# configure gcc
```
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 10
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 20
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 10
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 20
sudo update-alternatives --config gcc
sudo update-alternatives --config g++
```
Must set to gcc-8 for compiles to work
## install SDK examples
Optix 6.5
```
# there may be other dependencies
sudo apt-get install freeglut3-dev
cd /usr/local/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK
cmake -B build .
cmake --build build
```
Optix 7.0
installs, but with warnings about OpenEXR missing
```
Could NOT find OpenEXR (missing: OpenEXR_IlmImf_RELEASE OpenEXR_Half_RELEASE OpenEXR_Iex_RELEASE OpenEXR_Imath_RELEASE Open
EXR_IlmThread_RELEASE OpenEXR_INCLUDE_DIR) (found version "")
CMake Warning at optixDemandTexture/CMakeLists.txt:62 (message):
OpenEXR not found (see OpenEXR_ROOT). Will use procedural texture in
optixDemandTexture.
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Found ZlibStatic: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Could NOT find OpenEXR (missing: OpenEXR_IlmImf_RELEASE OpenEXR_Half_RELEASE OpenEXR_Iex_RELEASE OpenEXR_Imath_RELEASE Open
EXR_IlmThread_RELEASE OpenEXR_INCLUDE_DIR) (found version "")
CMake Warning at optixDemandTextureAdvanced/CMakeLists.txt:62 (message):
OpenEXR not found (see OpenEXR_ROOT). Will use procedural texture in
optixDemandTextureAdvanced.
```
build
```
# there may be other dependencies
sudo apt install openexr openexr-doc openexr-viewers libopenexr-dev
cd /usr/local/nvidia/NVIDIA-OptiX-SDK-7.0.0-linux64/SDK
cmake -B build .
cmake --build build
```
still have openexr related warnings
```
Could NOT find OpenEXR (missing: OpenEXR_INCLUDE_DIR) (found version "")
CMake Warning at optixDemandTexture/CMakeLists.txt:62 (message):
OpenEXR not found (see OpenEXR_ROOT). Will use procedural texture in
optixDemandTexture.
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Found ZlibStatic: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Could NOT find OpenEXR (missing: OpenEXR_INCLUDE_DIR) (found version "")
CMake Warning at optixDemandTextureAdvanced/CMakeLists.txt:62 (message):
OpenEXR not found (see OpenEXR_ROOT). Will use procedural texture in
optixDemandTextureAdvanced.
```