diff --git a/konabot/plugins/marchtoy/command.py b/konabot/plugins/marchtoy/command.py
index 3e7fbdd..a201219 100644
--- a/konabot/plugins/marchtoy/command.py
+++ b/konabot/plugins/marchtoy/command.py
@@ -25,7 +25,7 @@ class Command:
 
 
 class CommandChainParser:
-    CHAIN_PATTERN = r"^(([a-zA-Z0-9]+(?:\(([^()]*|(?1)+)(\s*\,\s*(?1))*\))?)(\.(?1))*)"
+    CHAIN_PATTERN = r"^(([a-zA-Z0-9\-+]+(?:\(([^()]*|(?1)+)(\s*\,\s*(?1))*\))?)(\.(?1))*)"
 
     def __init__(self, _command_chain: str) -> None:
         self.command_chain = _command_chain
diff --git a/konabot/plugins/marchtoy/obj.py b/konabot/plugins/marchtoy/obj.py
index 36cf50a..a27831f 100644
--- a/konabot/plugins/marchtoy/obj.py
+++ b/konabot/plugins/marchtoy/obj.py
@@ -271,7 +271,7 @@ class Camera(Object):
     def __init__(self, _focus: float = 2.0) -> None:
         super().__init__()
         self.focus = _focus
-        self.transform.translate(8.0, 8.0, 8.0).lookat(0.0, 0.0, 0.0)
+        # self.transform.translate(8.0, 8.0, 8.0).lookat(0.0, 0.0, 0.0)
 
     def parse_args(self, args: list[str]):
         self.focus = ArgParser.as_float(args)
diff --git a/konabot/plugins/marchtoy/scene.py b/konabot/plugins/marchtoy/scene.py
index dff3184..d6a3308 100644
--- a/konabot/plugins/marchtoy/scene.py
+++ b/konabot/plugins/marchtoy/scene.py
@@ -14,12 +14,14 @@ class Scene:
         from konabot.plugins.marchtoy.obj import Object, Camera, OBJECT_ENTRIES
         logger.info(f"building scene: {_instruction}")
         self.canvas_objs: list[tuple[Object, str]] = []
-        self.camera: Camera = Camera()
+        self.camera: Camera = Camera(1.0 / np.tan(np.deg2rad(30.0)))
+        self.camera.transform.translate(8.0, 8.0, 8.0).lookat(0.0, 0.0, 0.0)
+
         for raw_cmd in CommandChainParser(_instruction):
             cmd_queue = CommandParser(raw_cmd)
             cmd_obj = next(cmd_queue)
             obj_id, obj_args = cmd_obj.id, cmd_obj.args
-            # logger.info(f"parsing object: {obj_id} with args {obj_args}")
+            logger.info(f"parsing object: {obj_id} with args {obj_args}")
             obj_instance: Optional[Object] = None
             if obj_id in OBJECT_ENTRIES:
                 obj_cls = OBJECT_ENTRIES[obj_id]
@@ -35,11 +37,11 @@ class Scene:
                     ) from e
             else:
                 raise Exception(f"{obj_id} is not a valid object type.")
-            # logger.info(f"parsed object {obj_id}({obj_args})")
+            logger.info(f"parsed object {obj_id}({obj_args})")
             if obj_instance != None:
                 for cmd in cmd_queue:
                     op_id, op_args = cmd.id, cmd.args
-                    # logger.info(f"parsing operation {op_id} with args {op_args}")
+                    logger.info(f"parsing operation {op_id} with args {op_args}")
                     if op_id in OPERATION_ENTRIES:
                         op_func = OPERATION_ENTRIES[op_id]
                         if not callable(op_func):
@@ -47,12 +49,12 @@ class Scene:
                         op_func(obj_instance, op_args)
                     else:
                         raise Exception(f"{op_id} is not a valid operation.")
-                    # logger.info(f"parsed operation {op_id}({op_args})")
+                    logger.info(f"parsed operation {op_id}({op_args})")
 
                 try:
                     sdf_block = obj_instance.sdf_block_glsl()
                     self.canvas_objs.append((obj_instance, sdf_block))
-                    # logger.info(f"parsed sdf {sdf_block}")
+                    logger.info(f"parsed sdf {sdf_block}")
                 except:
                     # logger.info(f"parsed camera")
                     if type(obj_instance) == Camera: