Create README.md

README.md

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+# WorldSpawn
+The editor we use to create levels. It was forked from NetRaidiant and was a result of necessity.
+We wanted to move away from a proprietary toolchain that assumed a different texture coordinate system and had itechnical issues
+the author would not ever get back to us about, so we had to take matters into our own hands.
+Use it if you actually want to use the features listed below - note that they require a modified engine.
+There's plenty of other editors for the first-party id Tech games.
+
+## Key changes
+- All texture coordinates use the Valve 220 format for compatibility with J.A.C.K. exported .map files
+- Integration with our material system instead of long .shader files
+- Support for vertex-color/alpha editing of patches using our new fixed patch format
+- Support for VVM in the BSP compiler
+- Support for HDR lightmaps in the BSP compiler
+- Support for automatic cubemap surface-picking in the BSP compiler
+- Lots of bug fixes, like the 'ghost-ent' bug, which places dummy ents at the center of your map
+
+## Compiling
+You can compile the editor directly from within the Nuclide src tree using the build_editor.sh script.
+It'll also integrate it properly into the filesystem you're working with.
+Other than that, it can be built in either debug or release form with the scripts provided in this tree.
+
+The codebase also compiles the editor under MSYS2, but the compiler will currently segfault on NT.
+
+## Support
+The whole thing is held together with duct-tape.
+The codebase it is based on is not very portable and while effort had been made to rectify that,
+it's just such a time consuming affair.
+If you've got any issues, feel free to let us know, but we can't promise any support right away.
+Here be dragons, etc.