comfy_extras/nodes_load_3d.py

import nodes
import folder_paths
import os

def normalize_path(path):
    return path.replace('\\', '/')

class Load3D():
    @classmethod
    def INPUT_TYPES(s):
        input_dir = os.path.join(folder_paths.get_input_directory(), "3d")

        os.makedirs(input_dir, exist_ok=True)

        files = [normalize_path(os.path.join("3d", f)) for f in os.listdir(input_dir) if f.endswith(('.gltf', '.glb', '.obj', '.mtl', '.fbx', '.stl'))]

        return {"required": {
            "model_file": (sorted(files), {"file_upload": True}),
            "image": ("LOAD_3D", {}),
            "width": ("INT", {"default": 1024, "min": 1, "max": 4096, "step": 1}),
            "height": ("INT", {"default": 1024, "min": 1, "max": 4096, "step": 1}),
        }}

    RETURN_TYPES = ("IMAGE", "MASK", "STRING", "IMAGE", "IMAGE", "LOAD3D_CAMERA")
    RETURN_NAMES = ("image", "mask", "mesh_path", "normal", "lineart", "camera_info")

    FUNCTION = "process"
    EXPERIMENTAL = True

    CATEGORY = "3d"

    def process(self, model_file, image, **kwargs):
        image_path = folder_paths.get_annotated_filepath(image['image'])
        mask_path = folder_paths.get_annotated_filepath(image['mask'])
        normal_path = folder_paths.get_annotated_filepath(image['normal'])
        lineart_path = folder_paths.get_annotated_filepath(image['lineart'])

        load_image_node = nodes.LoadImage()
        output_image, ignore_mask = load_image_node.load_image(image=image_path)
        ignore_image, output_mask = load_image_node.load_image(image=mask_path)
        normal_image, ignore_mask2 = load_image_node.load_image(image=normal_path)
        lineart_image, ignore_mask3 = load_image_node.load_image(image=lineart_path)

        return output_image, output_mask, model_file, normal_image, lineart_image, image['camera_info']

class Load3DAnimation():
    @classmethod
    def INPUT_TYPES(s):
        input_dir = os.path.join(folder_paths.get_input_directory(), "3d")

        os.makedirs(input_dir, exist_ok=True)

        files = [normalize_path(os.path.join("3d", f)) for f in os.listdir(input_dir) if f.endswith(('.gltf', '.glb', '.fbx'))]

        return {"required": {
            "model_file": (sorted(files), {"file_upload": True}),
            "image": ("LOAD_3D_ANIMATION", {}),
            "width": ("INT", {"default": 1024, "min": 1, "max": 4096, "step": 1}),
            "height": ("INT", {"default": 1024, "min": 1, "max": 4096, "step": 1}),
        }}

    RETURN_TYPES = ("IMAGE", "MASK", "STRING", "IMAGE", "LOAD3D_CAMERA")
    RETURN_NAMES = ("image", "mask", "mesh_path", "normal", "camera_info")

    FUNCTION = "process"
    EXPERIMENTAL = True

    CATEGORY = "3d"

    def process(self, model_file, image, **kwargs):
        image_path = folder_paths.get_annotated_filepath(image['image'])
        mask_path = folder_paths.get_annotated_filepath(image['mask'])
        normal_path = folder_paths.get_annotated_filepath(image['normal'])

        load_image_node = nodes.LoadImage()
        output_image, ignore_mask = load_image_node.load_image(image=image_path)
        ignore_image, output_mask = load_image_node.load_image(image=mask_path)
        normal_image, ignore_mask2 = load_image_node.load_image(image=normal_path)

        return output_image, output_mask, model_file, normal_image, image['camera_info']

class Preview3D():
    @classmethod
    def INPUT_TYPES(s):
        return {"required": {
            "model_file": ("STRING", {"default": "", "multiline": False}),
        },
        "optional": {
            "camera_info": ("LOAD3D_CAMERA", {})
        }}

    OUTPUT_NODE = True
    RETURN_TYPES = ()

    CATEGORY = "3d"

    FUNCTION = "process"
    EXPERIMENTAL = True

    def process(self, model_file, **kwargs):
        camera_info = kwargs.get("camera_info", None)

        return {
            "ui": {
                "result": [model_file, camera_info]
            }
        }

class Preview3DAnimation():
    @classmethod
    def INPUT_TYPES(s):
        return {"required": {
            "model_file": ("STRING", {"default": "", "multiline": False}),
        },
        "optional": {
            "camera_info": ("LOAD3D_CAMERA", {})
        }}

    OUTPUT_NODE = True
    RETURN_TYPES = ()

    CATEGORY = "3d"

    FUNCTION = "process"
    EXPERIMENTAL = True

    def process(self, model_file, **kwargs):
        camera_info = kwargs.get("camera_info", None)

        return {
            "ui": {
                "result": [model_file, camera_info]
            }
        }

NODE_CLASS_MAPPINGS = {
    "Load3D": Load3D,
    "Load3DAnimation": Load3DAnimation,
    "Preview3D": Preview3D,
    "Preview3DAnimation": Preview3DAnimation
}

NODE_DISPLAY_NAME_MAPPINGS = {
    "Load3D": "Load 3D",
    "Load3DAnimation": "Load 3D - Animation",
    "Preview3D": "Preview 3D",
    "Preview3DAnimation": "Preview 3D - Animation"
}