assimp/port/PyAssimp/sample.py

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#!/usr/bin/env python
#-*- coding: UTF-8 -*-
"""
This module demonstrates the functionality of PyAssimp.
"""
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import pyassimp.core as pyassimp
import os, sys
#get a model out of assimp's test-data if none is provided on the command line
DEFAULT_MODEL = os.path.join(os.path.dirname(__file__),
"..", "..",
"test", "models", "MDL", "MDL3 (3DGS A4)", "minigun.MDL")
def recur_node(node,level = 0):
print(" " + "\t" * level + "- " + str(node))
for child in node.children:
recur_node(child, level + 1)
def main(filename=None):
filename = filename or DEFAULT_MODEL
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print "Reading model", filename
scene = pyassimp.load(filename)
#the model we load
print "MODEL:", filename
print
#write some statistics
print "SCENE:"
print " meshes:", len(scene.meshes)
print " materials:", len(scene.materials)
print " textures:", len(scene.textures)
print
print "NODES:"
recur_node(scene.rootnode)
print
print "MESHES:"
for index, mesh in enumerate(scene.meshes):
print " MESH", index+1
print " material id:", mesh.materialindex+1
print " vertices:", len(mesh.vertices)
print " first 3 verts:", mesh.vertices[:3]
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if len(mesh.normals) > 0:
print " first 3 normals:", mesh.normals[:3]
else:
print " no normals"
print " colors:", len(mesh.colors)
tc = mesh.texturecoords
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if len(tc) >= 4:
print " texture-coords 1:", len(tc[0]), "first3:", tc[0][:3]
print " texture-coords 2:", len(tc[1]), "first3:", tc[1][:3]
print " texture-coords 3:", len(tc[2]), "first3:", tc[2][:3]
print " texture-coords 4:", len(tc[3]), "first3:", tc[3][:3]
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elif len(tc) == 0:
print " no texture coordinates"
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else:
print " tc is an unexpected number of elements (expect 4, got", len(tc), ")"
print " uv-component-count:", len(mesh.numuvcomponents)
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print " faces:", len(mesh.faces), "first:", [f for f in mesh.faces[:3]]
print " bones:", len(mesh.bones), "first:", [str(b) for b in mesh.bones[:3]]
print
print "MATERIALS:"
for index, material in enumerate(scene.materials):
print(" MATERIAL (id:" + str(index+1) + ")")
for key, value in material.properties.items():
print " %s: %s" % (key, value)
print
print "TEXTURES:"
for index, texture in enumerate(scene.textures):
print " TEXTURE", index+1
print " width:", texture.width
print " height:", texture.height
print " hint:", texture.achformathint
print " data (size):", len(texture.data)
# Finally release the model
pyassimp.release(scene)
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print "Finished parsing the model."
if __name__ == "__main__":
main(sys.argv[1] if len(sys.argv)>1 else None)