def objtogoth(filename):
(points, uvs, normals, polygons) = wavefront.readMesh(filename)
triangles = wavefront.triangulate(polygons)
if uvs != [] and normals == []:
(points, uvs,
triangles) = splitTrianglesWithParametrics(points, uvs, triangles)
elif uvs != [] and normals != []:
(points, uvs, normals,
triangles) = splitTrianglesWithParametricsAndNormals(
points, uvs, normals, triangles)
else:
(points, triangles) = splitTriangles(points, triangles)
vertices = []
indices = []
parms = []
norms = []
# flatten the points list
for p in points:
vertices.extend(p)
# flatten the uv list
for uv in uvs:
parms.extend(uv)
# flatten the normals list
for n in normals:
norms.extend(n)
# flatten the triangle list
for tri in triangles:
indices.append(tri[0][0])
indices.append(tri[1][0])
indices.append(tri[2][0])
return (vertices, parms, indices, norms)
def objtogoth(filename):
(points, uvs, normals, polygons) = wavefront.readMesh(filename)
triangles = wavefront.triangulate(polygons)
if uvs != [] and normals == []:
(points, uvs, triangles) = splitTrianglesWithParametrics(points, uvs, triangles)
elif uvs != [] and normals != []:
(points, uvs, normals, triangles) = splitTrianglesWithParametricsAndNormals(points, uvs, normals, triangles)
else:
(points, triangles) = splitTriangles(points, triangles)
vertices = []
indices = []
parms = []
norms = []
# flatten the points list
for p in points:
vertices.extend(p)
# flatten the uv list
for uv in uvs:
parms.extend(uv)
# flatten the normals list
for n in normals:
norms.extend(n)
# flatten the triangle list
for tri in triangles:
indices.append(tri[0][0])
indices.append(tri[1][0])
indices.append(tri[2][0])
return (vertices, parms, indices, norms)
def objtogothWithMaterials(filename):
results = []
(points, uvs, normals, materials,
primitives) = wavefront.readMeshes(filename)
(materials,
primitives) = wavefront.partitionByMaterials(points, uvs, normals,
materials, primitives)
for (material, points, uvs, normals, polygons) in primitives:
triangles = wavefront.triangulate(polygons)
if uvs != [] and normals == []:
(points, uvs, triangles) = splitTrianglesWithParametrics(
points, uvs, triangles)
elif uvs != [] and normals != []:
(points, uvs, normals,
triangles) = splitTrianglesWithParametricsAndNormals(
points, uvs, normals, triangles)
else:
(points, triangles) = splitTriangles(points, triangles)
vertices = []
indices = []
parms = []
norms = []
# flatten the points list
for p in points:
vertices.extend(p)
# flatten the uv list
for uv in uvs:
parms.extend(uv)
# flatten the normals list
for n in normals:
norms.extend(n)
# flatten the triangle list
for tri in triangles:
indices.append(tri[0][0])
indices.append(tri[1][0])
indices.append(tri[2][0])
# convert from wavefront material to gotham material
try:
wavefrontParms = materials[material]
except:
print 'looking up material', material
raise ValueError, materials
exponent = 0
if wavefrontParms.has_key('Ns'):
exponent = wavefrontParms['Ns']
etai = 1.0
etat = 1000
if wavefrontParms.has_key('Ni'):
etat = wavefrontParms['Ni']
Kd = (0, 0, 0)
if wavefrontParms.has_key('Kd'):
Kd = wavefrontParms['Kd']
map_Kd = ''
if wavefrontParms.has_key('map_Kd'):
map_Kd = wavefrontParms['map_Kd']
Kt = (0, 0, 0)
if wavefrontParms.has_key('Tf'):
Kt = wavefrontParms['Tf']
map_Kt = ''
if wavefrontParms.has_key('map_Tf'):
map_Kt = wavefrontParms['map_Tf']
Ks = (0, 0, 0)
if wavefrontParms.has_key('Ks'):
Ks = wavefrontParms['Ks']
map_Ks = ''
if wavefrontParms.has_key("map_Ks"):
map_Ks = wavefrontParms['map_Ks']
# figure out which scattering properties we have
hasDiffuse = False
hasTransmission = False
hasSpecular = False
if Kd[0] > 0 or Kd[1] > 0 or Kd[2] > 0:
hasDiffuse = True
if Kt[0] > 0 or Kt[1] > 0 or Kt[2] > 0:
hasTransmission = True
if Ks[0] > 0 or Ks[1] > 0 or Ks[2] > 0:
hasSpecular = True
gothamName = ''
gothamParms = {}
if not hasDiffuse and not hasTransmission and hasSpecular:
gothamName = 'phongreflection'
gothamParms['Kr'] = Ks
gothamParms['eta'] = etat
gothamParms['exponent'] = exponent
elif not hasDiffuse and hasTransmission and not hasSpecular:
gothamName = 'speculartransmission'
gothamParms['Kt'] = Kt
gothamParms['etai'] = etai
gothamParms['etat'] = etat
elif not hasDiffuse and hasTransmission and hasSpecular:
if eta > 1:
gothamName = 'perfectglass'
gothamParms['eta'] = eta
else:
gothamName = 'thinglass'
gothamParms['Kt'] = Kt
gothamParms['Kr'] = Ks
elif hasDiffuse and not hasTransmission and not hasSpecular:
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
elif hasDiffuse and not hasTransmission and hasSpecular:
gothamName = 'plastic'
gothamParms['Kd'] = Kd
#gothamParms['map_Kd'] = map_Kd
gothamParms['Ks'] = Ks
#gothamParms['map_Ks'] = map_Ks
gothamParms['exponent'] = exponent
elif hasDiffuse and hasTransmission and not hasSpecular:
print "Warning: objtogoth::objtogothWithMaterials(): material '%s' with diffuse and transmission has no Gotham analogue." % material
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
elif hasDiffuse and hasTransmission and hasSpecular:
print "Warning: objtogoth::objtogothWithMaterials(): material '%s' with diffuse, transmission, and specular has no Gotham analogue." % material
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
else:
#print "Warning: objtogoth::objtogothWithMaterials(): material '%s' has no scattering properties. Object will appear black." % material
#print materials[material]
#print 'hasDiffuse:', hasDiffuse
#print 'hasTransmission:', hasDiffuse
#print 'hasSpecular:', hasDiffuse
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
# add to the list
results.append(((gothamName, gothamParms, material), vertices, parms,
indices, norms))
return results
def objtogothWithMaterials(filename):
results = []
(points, uvs, normals, materials, primitives) = wavefront.readMeshes(filename)
(materials, primitives) = wavefront.partitionByMaterials(points, uvs, normals, materials, primitives)
for (material, points, uvs, normals, polygons) in primitives:
triangles = wavefront.triangulate(polygons)
if uvs != [] and normals == []:
(points, uvs, triangles) = splitTrianglesWithParametrics(points, uvs, triangles)
elif uvs != [] and normals != []:
(points, uvs, normals, triangles) = splitTrianglesWithParametricsAndNormals(points, uvs, normals, triangles)
else:
(points, triangles) = splitTriangles(points, triangles)
vertices = []
indices = []
parms = []
norms = []
# flatten the points list
for p in points:
vertices.extend(p)
# flatten the uv list
for uv in uvs:
parms.extend(uv)
# flatten the normals list
for n in normals:
norms.extend(n)
# flatten the triangle list
for tri in triangles:
indices.append(tri[0][0])
indices.append(tri[1][0])
indices.append(tri[2][0])
# convert from wavefront material to gotham material
try:
wavefrontParms = materials[material]
except:
print 'looking up material', material
raise ValueError, materials
exponent = 0
if wavefrontParms.has_key('Ns'):
exponent = wavefrontParms['Ns']
etai = 1.0
etat = 1000
if wavefrontParms.has_key('Ni'):
etat = wavefrontParms['Ni']
Kd = (0,0,0)
if wavefrontParms.has_key('Kd'):
Kd = wavefrontParms['Kd']
map_Kd = ''
if wavefrontParms.has_key('map_Kd'):
map_Kd = wavefrontParms['map_Kd']
Kt = (0,0,0)
if wavefrontParms.has_key('Tf'):
Kt = wavefrontParms['Tf']
map_Kt = ''
if wavefrontParms.has_key('map_Tf'):
map_Kt = wavefrontParms['map_Tf']
Ks = (0,0,0)
if wavefrontParms.has_key('Ks'):
Ks = wavefrontParms['Ks']
map_Ks = ''
if wavefrontParms.has_key("map_Ks"):
map_Ks = wavefrontParms['map_Ks']
# figure out which scattering properties we have
hasDiffuse = False
hasTransmission = False
hasSpecular = False
if Kd[0] > 0 or Kd[1] > 0 or Kd[2] > 0:
hasDiffuse = True
if Kt[0] > 0 or Kt[1] > 0 or Kt[2] > 0:
hasTransmission = True
if Ks[0] > 0 or Ks[1] > 0 or Ks[2] > 0:
hasSpecular = True
gothamName = ''
gothamParms = {}
if not hasDiffuse and not hasTransmission and hasSpecular:
gothamName = 'phongreflection'
gothamParms['Kr'] = Ks
gothamParms['eta'] = etat
gothamParms['exponent'] = exponent
elif not hasDiffuse and hasTransmission and not hasSpecular:
gothamName = 'speculartransmission'
gothamParms['Kt'] = Kt
gothamParms['etai'] = etai
gothamParms['etat'] = etat
elif not hasDiffuse and hasTransmission and hasSpecular:
if eta > 1:
gothamName = 'perfectglass'
gothamParms['eta'] = eta
else:
gothamName = 'thinglass'
gothamParms['Kt'] = Kt
gothamParms['Kr'] = Ks
elif hasDiffuse and not hasTransmission and not hasSpecular:
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
elif hasDiffuse and not hasTransmission and hasSpecular:
gothamName = 'plastic'
gothamParms['Kd'] = Kd
#gothamParms['map_Kd'] = map_Kd
gothamParms['Ks'] = Ks
#gothamParms['map_Ks'] = map_Ks
gothamParms['exponent'] = exponent
elif hasDiffuse and hasTransmission and not hasSpecular:
print "Warning: objtogoth::objtogothWithMaterials(): material '%s' with diffuse and transmission has no Gotham analogue." % material
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
elif hasDiffuse and hasTransmission and hasSpecular:
print "Warning: objtogoth::objtogothWithMaterials(): material '%s' with diffuse, transmission, and specular has no Gotham analogue." % material
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
else:
#print "Warning: objtogoth::objtogothWithMaterials(): material '%s' has no scattering properties. Object will appear black." % material
#print materials[material]
#print 'hasDiffuse:', hasDiffuse
#print 'hasTransmission:', hasDiffuse
#print 'hasSpecular:', hasDiffuse
gothamName = 'matte'
gothamParms['Kd'] = Kd
gothamParms['map_Kd'] = map_Kd
# add to the list
results.append(((gothamName, gothamParms, material), vertices, parms, indices, norms))
return results