Including the library in your project
If you are including FastNoise2 in your repo either by direct source copy or git submodule you can do the following
In your CMakeLists.txt file you will need to include the sub directory where FastNoise2 is. The simplest way is to have a deps/dependencies directory where the source is located `deps/FastNoise2' is what I will assume here.
- Open your
CMakeLists.txt - Set whatever FastNoise options you would like using, i.e.
set(FASTNOISE_OPTION ON/OFF CACHE BOOL "Description of option" FORCE) - Add the sub directory with
add_subdirectory(deps/FastNoise2). - Link the FastNoise target to your target using
target_link_libraries(your_project FastNoise)
For an executable it should look something like this
set(FASTNOISE2_NOISETOOL OFF CACHE BOOL "Build Noise Tool" FORCE) #example if don't need the graph tool
add_subdirectory(deps/FastNoise2)
...
add_executable(your_project ${source})
...
target_link_libraries(your_project PRIVATE FastNoise ...)
If you are adding it to a lib it should be pretty much the same. The only differences are swapping the add_executable for add_library and if you are building a static lib you have to make sure the FastNoise target is added as PUBLIC in target_link_libraries as shown below.
set(FASTNOISE2_NOISETOOL OFF CACHE BOOL "Build Noise Tool" FORCE) #example if don't need the graph tool
add_subdirectory(deps/FastNoise2)
...
add_library(your_project ${source})
...
target_link_libraries(your_project PUBLIC FastNoise ...)
If you have compiled and installed via CMake or downloaded the binaries from the latest release you can do the following. You will need to add the library location to the CMAKE_PREFIX_PATH in your CMakeList.txt
set(CMAKE_PREFIX_PATH lib_directory ${CMAKE_PREFIX_PATH})
...
find_package(FastNoise CONFIG REQUIRED) #use REQUIRED if the lib has to be found for the project to work
...
add_executable(your_project ${source})
...
target_link_libraries(your_project PRIVATE FastNoise ...)
again if you are building FastNoise into a static library (like noted above) use the PUBLIC attribute rather than PRIVATE for target_link_libraries.
Suggest using, https://github.com/caseymcc/UE4CMake
You will need the compiled binaries to follow these steps, they can be downloaded from the Releases or compiled using CMake
In this guide the FastNoise2 folder from the latest release has been placed next to project file (.vcxproj), you can do the same or adjust the file paths in the guide accordingly
1: Right click on your project (not solution) and select Properties
2: Select the configuration Release, Debug, etc... You will have to make the changes in steps 3, 4 & 5 for each config.
3: Select C\C++ then General and use the dropdown arrow on the right side of Additional Include Directories to add the FastNoise2 include directory ./FastNoise2/include
4: Next select Linker then General and use the dropdown arrow on the right side of Additional Library Directories to add the FastNoise2 lib directory ./FastNoise2/lib
5: Still under Linker select Input and use the dropdown arrow on the right side of Additional Dependencies to add the FastNoise2 lib filename, FastNoise.lib for release configs and FastNoiseD.lib for debug configs.
After following the previous steps you should be able to compile and link with the FastNoise2 library but trying to run the program will give you this error
To fix this we need to deploy the DLL with the program EXE. We can setup Visual Studio to do this automatically on build
1: Right click on a file filter (or the project) select Add and Existing Item... then navigate to the ./FastNoise2/bin folder and select FastNoise.dll and FastNoiseD.dll to add
2: Right click on the newly added dll file and select Properties (Repeat this and the remaining steps for both dll files)
3: Change the Item Type to Copy File
4: Change the Configuration to the opposite of the dll, so FastNoise.dll -> Debug or FastNoiseD.dll -> Release
Set Excluded From Build to Yes, this will stop the dll being deployed for the incorrect build config
You should now be able to include FastNoise2 into your Visual Studio project using #include <FastNoise/FastNoise.h>
When building it should link with the FastNoise .lib then copy the .dll file to the output directory and your program should run!
Here are the demo Visual Studio 2019 project files used to create the above guide, look at the setup here if you are struggling with the above steps