186 lines
4.8 KiB
Markdown
186 lines
4.8 KiB
Markdown
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# OpenGL OBJ Visualizer
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## Building instructions
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Required tools:
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* C/C++ 11 compiler (gcc or visual studio or clang)
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* cmake
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### Dependencies
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The project depends on:
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- OpenGL
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- freeglut (included for ease in windows)
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## Windows
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### Prerequisites
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* download and install the latest version of CMake
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* download here: https://github.com/Kitware/CMake/releases/download/v3.17.1/cmake-3.17.1-win64-x64.msi
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* !!! When installing make sure that the checkbox "ne pas ajouter cmake au PATH" is NOT checked
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* if you don't have it already, download and install MS Visual Studio Community Edition (free for students): https://visualstudio.microsoft.com/downloads/
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* install instructions here: https://docs.microsoft.com/en-us/cpp/build/vscpp-step-0-installation?view=vs-2019
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* !!! install the "Desktop development with C++"
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* If you have VS already installed, you can go in **Tools** --> **Get Tools and Features...** to install "Desktop development with C++" if it is missing.
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### Create the Visual Studio Solution.
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This step enables you to create the project file to load inside VS:
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* unzip the code inside a folder. *Avoid to place the code in folders with spaces and accented characters*.
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* open a Terminal and go to the directory containing the code.
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* execute:
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* `md build`
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* `cd build`
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* `cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE:STRING=Release ..`
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* `dir`
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> if you had a different version of VS installed (not the latest) you may need to adapt the string `Visual Studio 16 2019` to your version: e.g. Visual Studio 15 2017, Visual Studio 14 2015, Visual Studio 12 2013
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* if everything went well you should find a file named `tp4.sln` inside the directory.
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### Compile, build, execute
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* open `tp4.sln` inside VS either by double clicking on it or opening from inside VS
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* build the solution (**Build Solution** from the **Build menu**)
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* from the tp directory copy `freeglut\bin\x64\freeglut.dll` in `build\Release`
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* execute the code:
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* From VS:
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* Select the project you want to run (e.g. `visualizer`), right click on it and select **Set as Startup Project**
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* From **Debug > visualizer Properties... > Configuration Porpoerties > Command Arguments**, insert the full path of the obj file that you want to test
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(In French: **Déboguer > Propriétés de visualizer > Débogage > Arguments de la commande**)
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* On the menu bar, choose **Debug** --> **Start without debugging**.)
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(see https://docs.microsoft.com/en-us/cpp/build/vscpp-step-2-build?view=vs-2019 for how to build, execute, etc)
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* From the command line:
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* Open a Terminal and go to `build/Release`
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* launch `visualizer ../../data/models/cube.obj` (the argument being the model to load)
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### Editing the code
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Edit the code according to the assignments that are given, rebuild the solution and execute.
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> !!! You need to run the cmake line only **once**
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> !!! You need to copy the dll file only **once**.
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---
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## Linux
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### Prerequisites
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In order to develop with OpenGL some system packages are required (unless you are using the N7 machines):
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```
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sudo apt-get install libglu1-mesa-dev freeglut3-dev build-essential mesa-common-dev libxi-dev libxmu-dev automake
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```
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To build this code we use the CMake build system. You can install CMake from the system package manager but you need a recent version >= 3.10. Check the version that is provided by your linux distribution and if it is suitable usually you need to
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```
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sudo apt-get install cmake
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```
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otherwise you can install the binaries from here: https://github.com/Kitware/CMake/releases/download/v3.17.1/cmake-3.17.1-Linux-x86_64.sh
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To install:
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```
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wget https://github.com/Kitware/CMake/releases/download/v3.17.1/cmake-3.17.1-Linux-x86_64.sh
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chmod +x cmake-3.17.1-Linux-x86_64.sh
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sudo cmake-3.17.1-Linux-x86_64.sh --prefix=/usr/local/ --skip-license
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```
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### Build
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To compile and build the code you do
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```
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mkdir build && cd build
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cmake ..
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make visualizer
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```
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Also,
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```
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make all
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```
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builds everything, and
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```
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make clean
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```
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cleans everything.
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Execute the code:
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```
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./visualizer ../data/models/cube.obj
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```
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### Editing the code
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Edit the code as required and then
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```
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make
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```
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> !!! the cmake line has to be run only **once**
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---
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## macOS
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### Prerequisites
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In order to develop with OpenGL check if
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```
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ls /System/Library/Frameworks/
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```
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contains OpenGL and GLUT frameworks.
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If not you need to install XCode from the `Mac App Store`, see here for more details https://developer.apple.com/support/xcode/
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Install the latest version of CMake by downloading https://github.com/Kitware/CMake/releases/download/v3.17.1/cmake-3.17.1-Darwin-x86_64.dmg
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### Build
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Same as Linux.
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### Editing the code
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Same as Linux.
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