Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

glsl/model.vert

@@ -0,0 +1,27 @@
+#version {VERSION}
+
+uniform mat4 View;
+uniform mat4 TransformMatrix;
+
+in vec4 aVertexPosition;
+in vec4 aVertexTexCoord;
+in vec2 aVertexTexMetadata;
+out vec4 vTexCoord;
+out vec4 vChannelMask;
+out vec4 vNormalsMask;
+
+vec4 DecodeMask(float x)
+{
+	if (x > 0.0)
+		return (x > 0.5) ? vec4(1,0,0,0) : vec4(0,1,0,0);
+	else
+		return (x < -0.5) ? vec4(0,0,0,1) : vec4(0,0,1,0);
+}
+
+void main()
+{
+	gl_Position = View*TransformMatrix*aVertexPosition;
+	vTexCoord = aVertexTexCoord;
+	vChannelMask = DecodeMask(aVertexTexMetadata.s);
+	vNormalsMask = DecodeMask(aVertexTexMetadata.t);
+}