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# ----------------------------------------------------------------------------
# - Open3D: www.open3d.org -
# ----------------------------------------------------------------------------
# Copyright (c) 2018-2024 www.open3d.org
# SPDX-License-Identifier: MIT
# ----------------------------------------------------------------------------
import sys
import os
import open3d as o3d
def main():
if len(sys.argv) < 2:
print("""Usage: textured-mesh.py [model directory]
This example will load [model directory].obj plus any of albedo, normal,
ao, metallic and roughness textures present. The textures should be named
albedo.png, normal.png, ao.png, metallic.png and roughness.png
respectively.""")
sys.exit()
model_dir = os.path.normpath(os.path.realpath(sys.argv[1]))
model_name = os.path.join(model_dir, os.path.basename(model_dir) + ".obj")
mesh = o3d.t.geometry.TriangleMesh.from_legacy(
o3d.io.read_triangle_mesh(model_name))
material = mesh.material
material.material_name = "defaultLit"
names_to_o3dprop = {"ao": "ambient_occlusion"}
for texture in ("albedo", "normal", "ao", "metallic", "roughness"):
texture_file = os.path.join(model_dir, texture + ".png")
if os.path.exists(texture_file):
texture = names_to_o3dprop.get(texture, texture)
material.texture_maps[texture] = o3d.t.io.read_image(texture_file)
if "metallic" in material.texture_maps:
material.scalar_properties["metallic"] = 1.0
o3d.visualization.draw(mesh, title=model_name)
if __name__ == "__main__":
main()
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