Join Pablo Colapinto for an in-depth discussion in this video Creating a context and getting extension info, part of Up and Running with OpenGL.
In this lesson, I'd like to take a closer look at Glew,…the graphics library extension wrangler.…We've seen it before because we've been…including it at the top of our program files.…But, what is it?…OpenGL extensions and standards…vary from platform to platform.…In Glew, the extension wrangler helps keep track…at what extensions are available on your system.…The first and foremost important thing to know…about Glew is that we want to know what extensions are…available on our system before we do anything else.…
Just make sure that all of the extensions that are available…to our drivers are available to us while we're programming.…We always want to include Glew first.…You'll notice that we've been including it…before we include GLFW.…The second thing to note about Glew is that it needs…to be initialized after we initialized our context.…This is because while Glew finds our extensions…before we include our context, it can only initialize…those extensions after the context has been created.…
We need to create the GLFW context…
- What is OpenGL?
- Setting up an OpenGL workflow
- Creating a window with GLFW
- Working with geometric primitives
- Rotating, translating, and scaling
- Understanding matrix transformations
- Creating mesh data structures
- Buffering mesh data
- Getting mouse and keyboard input
Skill Level Intermediate
Q: Why am I getting errors saying I don’t have GLEW installed when I try to create the Xcode projects with Cmake?
1) Download, Install, and Run Xcode
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
brew install glew
./bootstrap && make && make install
brew install cmake
cd Exercise Filesmkdir xcodecd xcodecmake -G "Xcode" ..