Terrain Editor - First Release

On top of all of the other stuff I've been developing, the main feature of this one's the terrain editor that I added.

Once I publish the itch.io page there'll be a bit of media on it, which you may find useful.

Main features

• Deform, texture and paint the terrain
• Export 3D models (OBJ or Game Maker models) for use in games, or other applications - you don't need to use these in Game Maker yourself, although that's the primary focus
• Export or import terrain as heightmap images (see documentation for the specifics)
• Spiffy water shader

The YYC thing

You might notice two versions of the program: a "Default" version and a "YYC" version. They do the exact same thing, but the YYC version is compiled in native code instead of running inside the Game Maker virtual machine (the Default version), so it should perform quite a bit better, especially on lower-end machines.
The downside is that there are slight differences in the way the Game Maker VM and YYC work, and since the YYC takes way longer to compile and is significantly harder to debug it hasn't seen nearly as much testing as the Default version has. If (or when) problems appear in the YYC version, the Default one should be functional until I'm able to fix whatever the problem is.