DrawMeshInstanced takes transforms as Buffer.

examples/resources/lib/matrix.lua

@@ -58,6 +58,15 @@ function Matrix:set( m )
 	self:copyMatrix( m )
 end
 
+function Matrix:arr()
+	return {
+		self[1][1], self[2][1], self[3][1], self[4][1],
+		self[1][2], self[2][2], self[3][2], self[4][2],
+		self[1][3], self[2][3], self[3][3], self[4][3],
+		self[1][4], self[2][4], self[3][4], self[4][4],
+	}
+end
+
 function Matrix:serialize()
 	local str = { "Matrix:new({" }