Update readme.md

Re added Windows Specific section and tweaked the section on OpenGL 1.1 to more directly refer to Linux and Unix based systems.
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Alex McKeever 2021-02-14 15:57:48 -05:00 committed by GitHub
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@ -31,10 +31,13 @@ Run ClassiCube.exe, then click Singleplayer at the main menu.
**Multiplayer** **Multiplayer**
Run ClassiCube.exe. You can connect to LAN/locally hosted servers, ~~minecraft.net servers,~~ and classicube.net servers through the launcher. Run ClassiCube.exe. You can connect to LAN/locally hosted servers, ~~minecraft.net servers,~~ and classicube.net servers through the launcher.
###### *Stuck on OpenGL 1.1?* ###### *Stuck with OpenGL 1.1 due to old graphics hardware?*
Compile the game yourself with the following flag described below. For compiling the game, see the corresponding command for your operating system. Compile the game yourself with the following flag described below. For compiling the game, see the corresponding command for BSD, macOS (32 bit or 64 bit), or Linux operating systems.
*If you are need to use the OpenGL 1.1 software renderer due to a non upgradable, older GPU, such as an ATI RAGE series card in an older laptop or PowerPC Mac with an integrated RAGE chip, add `-DCC_BUILD_GL11` as a compilation flag **before the optimize flag**. *If you need to use the OpenGL 1.1 hardware renderer due to a non upgradable, older GPU, such as an ATI RAGE series card in an older laptop or PowerPC Mac with an integrated ATI or nVidia chip, add `-DCC_BUILD_GL11` as a compilation flag **before the optimize flag**. The game **will not run** without this flag on older GPUs under the above operating systems.
###### *Windows specific*
*If you are stuck using the built-in OpenGL 1.1 software renderer, you can use the MESA software renderer from [here](http://download.qt.io/development_releases/prebuilt/llvmpipe/windows/) for slightly better performance. Typically though, this occurs because you have not installed GPU drivers.*
### Compiling - Windows ### Compiling - Windows