diff --git a/bbp_ng/UTIL_bme.py b/bbp_ng/UTIL_bme.py
index c0ccf39..a266385 100644
--- a/bbp_ng/UTIL_bme.py
+++ b/bbp_ng/UTIL_bme.py
@@ -88,6 +88,25 @@ def _get_prototype_by_identifier(ident: str) -> dict[str, typing.Any]:
 
 #region Programmable Field Calc
 
+def _env_fct_distance(x1: float, y1: float, x2: float, y2: float) -> float:
+    diff = mathutils.Vector((x2, y2)) - mathutils.Vector((x1, y1))
+    return diff.length
+
+def _env_fct_angle(x1: float, y1: float, x2: float, y2: float) -> float:
+    # compute blender angle first
+    # computed blender angle has some issues:
+    # first, it is range from -180 to 180 (0 is +X axis).
+    # second, its direction (clockwise is positive) is opposite with blender rotation direction (counter-clockwise is positive).
+    diff = mathutils.Vector((x2, y2)) - mathutils.Vector((x1, y1))
+    bld_angle = math.degrees(mathutils.Vector((1,0)).angle_signed(diff, 0))
+
+    # flip it first
+    bld_angle = -bld_angle
+    # process positove number and negative number respectively
+    # to let it range change from -180~180 to 0~360
+    if bld_angle > 0: return bld_angle
+    else: return 360 + bld_angle
+
 _g_ProgFieldGlobals: dict[str, typing.Any] = {
     # constant
     'pi': math.pi,
@@ -122,6 +141,10 @@ _g_ProgFieldGlobals: dict[str, typing.Any] = {
     'rot': lambda x, y, z: mathutils.Matrix.LocRotScale(None, mathutils.Euler((math.radians(x), math.radians(y), math.radians(z)), 'XYZ'), None),
     'scale': lambda x, y, z: mathutils.Matrix.LocRotScale(None, None, (x, y, z)),
     'ident': lambda: mathutils.Matrix.Identity(4),
+
+    # my misc custom functions
+    'distance': _env_fct_distance,
+    'angle': _env_fct_angle,
 }
 
 def _eval_showcase_cfgs_default(strl: str) -> typing.Any:
diff --git a/bbp_ng/raw_jsons/chris_vanilla.json b/bbp_ng/raw_jsons/chris_vanilla.json
new file mode 100644
index 0000000..627c71d
--- /dev/null
+++ b/bbp_ng/raw_jsons/chris_vanilla.json
@@ -0,0 +1,398 @@
+[
+    {
+        "identifier": "cv_trapezoid_side",
+        "showcase": null,
+        "params": [
+            {
+                "field": "long_edge_length",
+                "data": "5.0"
+            },
+            {
+                "field": "short_edge_offset",
+                "data": "0.0"
+            },
+            {
+                "field": "short_edge_length",
+                "data": "5.0"
+            },
+            {
+                "field": "height",
+                "data": "5.0"
+            },
+            {
+                "field": "face",
+                "data": "(True, False, False, False, True, False)"
+            },
+            {
+                "field": "is_sink",
+                "data": "False"
+            },
+            {
+                "field": "is_ribbon",
+                "data": "False"
+            }
+        ],
+        "skip": "long_edge_length == 0.0 or short_edge_length == 0.0",
+        "vars": [
+            {
+                "field": "long_edge_uv_length",
+                "data": "long_edge_length / 5.0"
+            },
+            {
+                "field": "short_edge_uv_offset",
+                "data": "short_edge_offset / 5.0"
+            },
+            {
+                "field": "short_edge_uv_length",
+                "data": "short_edge_length / 5.0"
+            },
+            {
+                "field": "short_edge_total",
+                "data": "short_edge_offset + short_edge_length"
+            },
+            {
+                "field": "short_edge_uv_total",
+                "data": "short_edge_uv_offset + short_edge_uv_length"
+            },
+            {
+                "field": "uv_border_texture",
+                "data": "1.0 if is_ribbon else 0.5"
+            },
+            {
+                "field": "sink",
+                "data": "0.7 if is_sink else 0.0"
+            }
+        ],
+        "vertices": [
+            {
+                "skip": "not face[0]",
+                "data": "(0, 0, 0)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(short_edge_offset, 2.5, -sink)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(long_edge_length, 0, 0)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(short_edge_total, 2.5, -sink)"
+            }
+        ],
+        "faces": [
+            {
+                "skip": "not face[0]",
+                "texture": "(\"FloorTopFlat\" if is_ribbon else \"FloorTopProfil\") if is_sink else \"FloorTopBorder\"",
+                "indices": [0, 2, 3, 1],
+                "uvs": [
+                    "(0, 0)",
+                    "(0, long_edge_uv_length)",
+                    "(uv_border_texture, short_edge_uv_total)",
+                    "(uv_border_texture, short_edge_uv_offset)"
+                ],
+                "normals": null
+            }
+        ],
+        "instances": [
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[4]",
+                "params": {
+                    "height": "height",
+                    "length": "long_edge_length",
+                    "is_left_sink": "False",
+                    "is_right_sink": "False"
+                },
+                "transform": "ident()"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[2]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(0, 0, short_edge_offset, 2.5)",
+                    "is_left_sink": "is_sink",
+                    "is_right_sink": "False"
+                },
+                "transform": "rot(0, 0, angle(0, 0, short_edge_offset, 2.5)) @ scale(1, -1, 1)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[3]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(long_edge_length, 0, short_edge_total, 2.5)",
+                    "is_left_sink": "False",
+                    "is_right_sink": "is_sink"
+                },
+                "transform": "move(long_edge_length, 0, 0) @ rot(0, 0, angle(long_edge_length, 0, short_edge_total, 2.5))"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[5]",
+                "params": {
+                    "height": "height",
+                    "length": "length",
+                    "is_left_sink": "is_sink",
+                    "is_right_sink": "is_sink"
+                },
+                "transform": "move(short_edge_offset, 2.5, 0) @ scale(1, -1, 1)"
+            },
+            {
+                "identifier": "floor_4edges_bottom",
+                "skip": "not face[1]",
+                "params": {
+                    "top_left_pos": "(0, 0)",
+                    "top_right_pos": "(short_edge_offset, 2.5)",
+                    "bottom_left_pos": "(long_edge_length, 0)",
+                    "bottom_right_pos": "(short_edge_total, 2.5)"
+                },
+                "transform": "move(0, 0, -height)"
+            }
+        ]
+    },
+    {
+        "identifier": "cv_triangle_side",
+        "showcase": null,
+        "params": [
+            {
+                "field": "height",
+                "data": "5.0"
+            },
+            {
+                "field": "face",
+                "data": "(True, False, False, False, True, None)"
+            },
+            {
+                "field": "is_sink",
+                "data": "False"
+            }
+        ],
+        "skip": "False",
+        "vars": [
+            {
+                "field": "sink",
+                "data": "0.7 if is_sink else 0.0"
+            }
+        ],
+        "vertices": [
+            {
+                "skip": "not face[0]",
+                "data": "(0, 0, 0)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(2.5, 2.5, -sink)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(5.0, 0, 0)"
+            }
+        ],
+        "faces": [
+            {
+                "skip": "not face[0]",
+                "texture": "\"FloorTopProfil\" if is_sink else \"FloorTopBorder\"",
+                "indices": [0, 2, 1],
+                "uvs": [
+                    "(0, 0)",
+                    "(0, 1)",
+                    "(0.5, 0.5)"
+                ],
+                "normals": null
+            }
+        ],
+        "instances": [
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[4]",
+                "params": {
+                    "height": "height",
+                    "length": "5",
+                    "is_left_sink": "False",
+                    "is_right_sink": "False"
+                },
+                "transform": "ident()"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[2]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(0, 0, 2.5, 2.5)",
+                    "is_left_sink": "is_sink",
+                    "is_right_sink": "False"
+                },
+                "transform": "rot(0, 0, 45) @ scale(1, -1, 1)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[3]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(5, 0, 2.5, 2.5)",
+                    "is_left_sink": "False",
+                    "is_right_sink": "is_sink"
+                },
+                "transform": "move(5, 0, 0) @ rot(0, 0, 135)"
+            },
+            {
+                "identifier": "floor_triangle_bottom",
+                "skip": "not face[1]",
+                "params": {
+                    "length": "5.0",
+                    "width": "2.5",
+                    "tip_offset": "2.5"
+                },
+                "transform": "move(0, 0, -height)"
+            }
+        ]
+    },
+    {
+        "identifier": "cv_triangle_center",
+        "showcase": null,
+        "params": [
+            {
+                "field": "height",
+                "data": "5.0"
+            },
+            {
+                "field": "face",
+                "data": "(True, False, False, None, False, False)"
+            },
+            {
+                "field": "is_sink",
+                "data": "False"
+            }
+        ],
+        "skip": "False",
+        "vars": [
+            {
+                "field": "sink",
+                "data": "0.7 if is_sink else 0.0"
+            }
+        ],
+        "vertices": [
+            {
+                "skip": "not face[0]",
+                "data": "(0, 0, 0)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(0, 5, 0)"
+            },
+            {
+                "skip": "not face[0]",
+                "data": "(2.5, 2.5, -sink)"
+            },
+            {
+                "skip": "(not face[0]) and is_sink",
+                "data": "(0, 2.5, -sink)"
+            }
+        ],
+        "faces": [
+            {
+                "skip": "(not face[0]) and (not is_sink)",
+                "texture": "\"FloorTopFlat\"",
+                "indices": [0, 2, 1],
+                "uvs": [
+                    "(0, 0)",
+                    "(0.5, 0.5)",
+                    "(1, 0)"
+                ],
+                "normals": null
+            },
+            {
+                "skip": "(not face[0]) and is_sink",
+                "texture": "\"FloorTopFlat\"",
+                "indices": [0, 2, 3],
+                "uvs": [
+                    "(0, 0)",
+                    "(0.5, 0.5)",
+                    "(0.5, 0)"
+                ],
+                "normals": null
+            },
+            {
+                "skip": "(not face[0]) and is_sink",
+                "texture": "\"FloorTopFlat\"",
+                "indices": [3, 2, 1],
+                "uvs": [
+                    "(0.5, 0)",
+                    "(0.5, 0.5)",
+                    "(1, 0)"
+                ],
+                "normals": null
+            }
+        ],
+        "instances": [
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[4]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(0, 0, 2.5, 2.5)",
+                    "is_left_sink": "False",
+                    "is_right_sink": "is_sink"
+                },
+                "transform": "rot(0, 0, 45)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "not face[5]",
+                "params": {
+                    "height": "height",
+                    "length": "distance(5, 0, 2.5, 2.5)",
+                    "is_left_sink": "is_sink",
+                    "is_right_sink": "False"
+                },
+                "transform": "move(2.5, 2.5, 0) @ rot(0, 0, 135)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "(not face[2]) and is_sink",
+                "params": {
+                    "height": "height",
+                    "length": "2.5",
+                    "is_left_sink": "False",
+                    "is_right_sink": "True"
+                },
+                "transform": "rot(0, 0, 90) @ scale(1, -1 , 1)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "(not face[2]) and is_sink",
+                "params": {
+                    "height": "height",
+                    "length": "2.5",
+                    "is_left_sink": "True",
+                    "is_right_sink": "False"
+                },
+                "transform": "move(0, 2.5, 0) @ rot(0, 0, 90) @ scale(1, -1 , 1)"
+            },
+            {
+                "identifier": "raw_floor_side",
+                "skip": "(not face[2]) and (not is_sink)",
+                "params": {
+                    "height": "height",
+                    "length": "5",
+                    "is_left_sink": "False",
+                    "is_right_sink": "False"
+                },
+                "transform": "rot(0, 0, 90) @ scale(1, -1 , 1)"
+            },
+            {
+                "identifier": "floor_triangle_bottom",
+                "skip": "not face[1]",
+                "params": {
+                    "length": "5",
+                    "width": "2.5",
+                    "tip_offset": "2.5"
+                },
+                "transform": "move(0, 5, -height) @ rot(0, 0, -90)"
+            }
+        ]
+    }
+]
\ No newline at end of file
diff --git a/bbp_ng/raw_jsons/sides.json b/bbp_ng/raw_jsons/sides.json
index 63c9bf0..4f72a6a 100644
--- a/bbp_ng/raw_jsons/sides.json
+++ b/bbp_ng/raw_jsons/sides.json
@@ -122,7 +122,142 @@
         "instances": []
     },
     {
-        "identifier": "floor_bottom",
+        "identifier": "floor_4edges_bottom",
+        "showcase": null,
+        "params": [
+            {
+                "field": "top_left_pos",
+                "data": "(0.0, 0.0)"
+            },
+            {
+                "field": "top_right_pos",
+                "data": "(0.0, 5.0)"
+            },
+            {
+                "field": "bottom_left_pos",
+                "data": "(5.0, 0.0)"
+            },
+            {
+                "field": "bottom_right_pos",
+                "data": "(5.0, 5.0)"
+            }
+        ],
+        "skip": "False",
+        "vars": [
+            {
+                "field": "top_left_uv",
+                "data": "tuple(map(lambda x: x / 5.0, top_left_pos))"
+            },
+            {
+                "field": "top_right_uv",
+                "data": "tuple(map(lambda x: x / 5.0, top_right_pos))"
+            },
+            {
+                "field": "bottom_left_uv",
+                "data": "tuple(map(lambda x: x / 5.0, bottom_left_pos))"
+            },
+            {
+                "field": "bottom_right_uv",
+                "data": "tuple(map(lambda x: x / 5.0, bottom_right_pos))"
+            }
+        ],
+        "vertices": [
+            {
+                "skip": "False",
+                "data": "top_left_pos + (0, )"
+            },
+            {
+                "skip": "False",
+                "data": "top_right_pos + (0, )"
+            },
+            {
+                "skip": "False",
+                "data": "bottom_left_pos + (0, )"
+            },
+            {
+                "skip": "False",
+                "data": "bottom_right_pos + (0, )"
+            }
+        ],
+        "faces": [
+            {
+                "skip": "False",
+                "texture": "\"FloorTopBorderless\"",
+                "indices": [0, 1, 3, 2],
+                "uvs": [
+                    "top_left_uv",
+                    "top_right_uv",
+                    "bottom_right_uv",
+                    "bottom_left_uv"
+                ],
+                "normals": null
+            }
+        ],
+        "instances": []
+    },
+    {
+        "identifier": "floor_3edges_bottom",
+        "showcase": null,
+        "params": [
+            {
+                "field": "top_pos",
+                "data": "(0.0, 0.0)"
+            },
+            {
+                "field": "bottom_pos",
+                "data": "(5.0, 0.0)"
+            },
+            {
+                "field": "tip_pos",
+                "data": "(2.5, 2.5)"
+            }
+        ],
+        "skip": "False",
+        "vars": [
+            {
+                "field": "top_uv",
+                "data": "tuple(map(lambda x: x / 5.0, top_pos))"
+            },
+            {
+                "field": "bottom_uv",
+                "data": "tuple(map(lambda x: x / 5.0, bottom_pos))"
+            },
+            {
+                "field": "tip_uv",
+                "data": "tuple(map(lambda x: x / 5.0, tip_pos))"
+            }
+        ],
+        "vertices": [
+            {
+                "skip": "False",
+                "data": "top_pos + (0, )"
+            },
+            {
+                "skip": "False",
+                "data": "bottom_pos + (0, )"
+            },
+            {
+                "skip": "False",
+                "data": "tip_pos + (0, )"
+            }
+        ],
+        "faces": [
+            {
+                "skip": "False",
+                "texture": "\"FloorTopBorderless\"",
+                "indices": [0, 2, 1],
+                "uvs": [
+                    "top_uv",
+                    "tip_uv",
+                    "bottom_uv"
+                ],
+                "normals": null
+            }
+        ],
+        "instances": []
+    },
+    {
+        "identifier": "floor_rectangle_bottom",
         "showcase": null,
         "params": [
             {
@@ -135,48 +270,55 @@
             }
         ],
         "skip": "length == 0.0 or width == 0.0",
-        "vars": [
+        "vars": [],
+        "vertices": [],
+        "faces": [],
+        "instances": [
             {
-                "field": "uv_length",
-                "data": "length / 5.0"
+                "identifier": "floor_4edges_bottom",
+                "skip": "False",
+                "params": {
+                    "top_left_pos": "(0, 0)",
+                    "top_right_pos": "(0, width)",
+                    "bottom_left_pos": "(length, 0)",
+                    "bottom_right_pos": "(length, width)"
+                },
+                "transform": "ident()"
+            }
+        ]
+    },
+    {
+        "identifier": "floor_triangle_bottom",
+        "showcase": null,
+        "params": [
+            {
+                "field": "length",
+                "data": "5.0"
             },
             {
-                "field": "uv_width",
-                "data": "width / 5.0"
+                "field": "width",
+                "data": "2.5"
+            },
+            {
+                "field": "tip_offset",
+                "data": "2.5"
             }
         ],
-        "vertices": [
+        "skip": "length == 0.0",
+        "vars": [],
+        "vertices": [],
+        "faces": [],
+        "instances": [
             {
+                "identifier": "floor_3edges_bottom",
                 "skip": "False",
-                "data": "(0, 0, 0)"
-            },
-            {
-                "skip": "False",
-                "data": "(0, width, 0)"
-            },
-            {
-                "skip": "False",
-                "data": "(length, 0, 0)"
-            },
-            {
-                "skip": "False",
-                "data": "(length, width, 0)"
+                "params": {
+                    "top_pos": "(0, 0)",
+                    "bottom_pos": "(length, 0)",
+                    "tip_pos": "(tip_offset, width)"
+                },
+                "transform": "ident()"
             }
-        ],
-        "faces": [
-            {
-                "skip": "False",
-                "texture": "\"FloorTopBorderless\"",
-                "indices": [0, 1, 3, 2],
-                "uvs": [
-                    "(0, 0)",
-                    "(uv_width, 0)",
-                    "(uv_width, uv_length)",
-                    "(0, uv_length)"
-                ],
-                "normals": null
-            }
-        ],
-        "instances": []
+        ]
     }
 ]
\ No newline at end of file