Meshes

Visualize a mesh. To get the demo data, see ./assets/download_dragon_mesh.sh.

import time
from pathlib import Path

import numpy as onp
import trimesh
import viser
import viser.transforms as tf

mesh = trimesh.load_mesh(str(Path(__file__).parent / "assets/dragon.obj"))
assert isinstance(mesh, trimesh.Trimesh)
mesh.apply_scale(0.05)

vertices = mesh.vertices
faces = mesh.faces
print(f"Loaded mesh with {vertices.shape} vertices, {faces.shape} faces")

server = viser.ViserServer()
server.scene.add_mesh_simple(
    name="/simple",
    vertices=vertices,
    faces=faces,
    wxyz=tf.SO3.from_x_radians(onp.pi / 2).wxyz,
    position=(0.0, 0.0, 0.0),
)
server.scene.add_mesh_trimesh(
    name="/trimesh",
    mesh=mesh.smoothed(),
    wxyz=tf.SO3.from_x_radians(onp.pi / 2).wxyz,
    position=(0.0, 5.0, 0.0),
)

while True:
    time.sleep(10.0)