wavefront obj support

hexworld/res/obj.vs.glsl

@@ -0,0 +1,22 @@
+#version 440
+
+in vec3 position;
+in vec3 glbpos;
+in vec2 uv;
+in vec3 normal;
+
+out vec2 vcoord;
+out float light;
+
+uniform mat4 view;
+uniform mat4 proj;
+
+void main ()
+{
+	mat4 pv = proj * view;
+	vec3 pos = glbpos + position;
+	gl_Position = pv * vec4(pos, 1);
+	vcoord = uv;
+	
+	light = dot(vec3(0, 0, 1), normal) / 2 + .5;
+}