ChatGPT 和 GPT-4 如何用于 3D 内容生成

“Reception room, 7x10m, origin at (0.0,0.0,0.0). This is the room where we meet 
our customers. Make sure there is a set of comfortable armchairs, a sofa and a 
coffee table”

You are an area generator expert. Given an area of a certain size, you can generate a list of items that are appropriate to that area, in the right place.


You operate in a 3D Space. You work in a X,Y,Z coordinate system. X denotes width, Y denotes height, Z denotes depth. 0.0,0.0,0.0 is the default space origin.


You receive from the user the name of the area, the size of the area on X and Z axis in centimeters, the origin point of the area (which is at the center of the area).


You answer by only generating JSON files that contain the following information:


- area_name: name of the area
- X: coordinate of the area on X axis
- Y: coordinate of the area on Y axis
- Z: coordinate of the area on Z axis
- area_size_X: dimension in cm of the area on X axis
- area_size_Z: dimension in cm of the area on Z axis
- area_objects_list: list of all the objects in the area

For each object you need to store:
- object_name: name of the object
- X: coordinate of the object on X axis
- Y: coordinate of the object on Y axis
- Z: coordinate of the object on Z axis


Each object name should include an appropriate adjective.


Keep in mind, objects should be placed in the area to create the most meaningful layout possible, and they shouldn't overlap.
All objects must be within the bounds of the area size; Never place objects further than 1/2 the length or 1/2 the depth of the area from the origin.
Also keep in mind that the objects should be disposed all over the area in respect to the origin point of the area, and you can use negative values as well to display items correctly, since the origin of the area is always at the center of the area.


Remember, you only generate JSON code, nothing else. It's very important.

"Reception room, 7x10m, origin at (0.0,0.0,0.0). This is the room where we meet 
our customers. Make sure there is a set of comfortable armchairs, a sofa and a 
coffee table"

{
    "area_name": "Reception",
    "X": 0.0,
    "Y": 0.0,
    "Z": 0.0,
    "area_size_X": 700,
    "area_size_Z": 1000,
    "area_objects_list": [
        {
            "object_name": "White_Round_Coffee_Table",
            "X": -120,
            "Y": 0.0,
            "Z": 130
        },
        {
            "object_name": "Leather_Sofa",
            "X": 250,
            "Y": 0.0,
            "Z": -90
        },
        {
            "object_name": "Comfortable_Armchair_1",
            "X": -150,
            "Y": 0.0,
            "Z": 50
        },
        {
            "object_name": "Comfortable_Armchair_2",
            "X": -150,
            "Y": 0.0,
            "Z": -50
        }  ]
}

# Create a completion using the chatGPT model   
 response = openai.ChatCompletion.create(
         model="gpt-3.5-turbo",
         # if you have access, you can swap to model="gpt-4",
                    messages=[
                            {"role": "system", "content": system_input},
                            {"role": "user", "content": user_input},
                            {"role": "assistant", "content": assistant_input},
                            {"role": "user", "content": my_prompt},
                             ]
                    )
    # parse response and extract text
    text = response["choices"][0]["message"]['content']

def place_deepsearch_results(gpt_results, query_result, root_prim_path):
        index = 0
        for item in query_result:
            # Define Prim          
            stage = omni.usd.get_context().get_stage()

            prim_parent_path = root_prim_path + item[‘object_name’].replace(" ", "_")
            parent_xForm = UsdGeom.Xform.Define(stage, prim_parent_path)

            prim_path = prim_parent_path + "/" + item[‘object_name’].replace(" ", "_")
            next_prim = stage.DefinePrim(prim_path, 'Xform')


            # Add reference to USD Asset
            references: Usd.references = next_prim.GetReferences()

            references.AddReference(
                assetPath="your_server://your_asset_folder" + item[‘asset_path’])


            # Add reference for future search refinement 
            config = next_prim.CreateAttribute("DeepSearch:Query", Sdf.ValueTypeNames.String)
            config.Set(item[‘object_name’])

           # translate prim
            next_object = gpt_results[index]
            index = index + 1
            x = next_object['X']
            y = next_object['Y']
            z = next_object['Z']

def increment_prim_index():
            if self._query_results is None:
                return 


            self._index = self._index + 1


            if self._index >= len(self._query_results.paths):
                self._index = 0


            self.replace_reference()


def replace_reference(self):
        references: Usd.references = self._selected_prim.GetReferences()
        references.ClearReferences()
        references.AddReference(
                assetPath="your_server://your_asset_folder" + self._query_results.paths[self._index].uri)

“每个物体的名称应包含适当的形容词。”
“请记住，物品应该放置在区域内，以创建最有意义的布局，不应重叠。”
“所有物品必须在区域大小的范围内; 不能将物品放置在距离原点区域长度的1/2或深度的1/2之外。”
“还要记住，物品应该在区域的原点周围放置，您还可以使用负值来正确显示物品，因为区域的原点始终位于区域的中心。”