from mpl_toolkits.mplot3d.art3d import Poly3DCollection
import matplotlib.pyplot as plt
import numpy as np
from utils.files.input import ScannedObject

def render3D(obj:ScannedObject):
    """
    Render a 3D model using matplotlib's Poly3dcollection
    :param obj: A ScannedObject to be rendered
    """
    fig = plt.figure()
    ax = fig.add_subplot(projection='3d')
    faces = np.array(obj.get_faces())
    verts = np.array(obj.get_vertices())
    mesh = Poly3DCollection(verts[faces], alpha=0.25, edgecolor='none')
    ax.add_collection3d(mesh)
    plt.show()