View difference between Paste ID: <a href="/C1H0D4HT">C1H0D4HT</a> and <a href="/MwYPAZ1t">MwYPAZ1t</a>

import hou
1		import hou
2		import os
3		import re
4		import string
5
6		# removes all path till the last two slashes
7		# C:/Model/model1/maps/aaa.jpg -> maps/aaa.jpg
8		def pathCorrect(path):
9		path=path.replace("\\","/")
10		split=path.rsplit("/",2)[-2:]
11		result=split[0]
12		if len(split)>1:
13		result+="/"+split[1]
14		return result
15
16		################################################################
17		# Shader definition -- Change it to match your shader
18		################################################################
19		# name of the shader
20		shader='mantrasurface'
21		# parameters for diffuse color
22		difr='diff_colorr'
23		difg='diff_colorg'
24		difb='diff_colorb'
25		# parameters for specular color
26		specr='spec_colorr'
27		specg='spec_colorg'
28		specb='spec_colorb'
29		# parameter for opacity
30		opacity='opac_int'
31		#parameter for IOR
32		ior='ior_in'
33		# parameters for maps
34		use_diffmap='diff_colorUseTexture'
35		diff_map='diff_colorTexture'
36		use_specmap='refl_colorUseTexture'
37		spec_map='refl_colorTexture'
38		use_alphamap='opacity_colorUseTexture'
39		alpha_map='opacity_colorTexture'
40		use_bumpmap='enableBumpOrNormalTexture'
41		bump_map='normalTexture'
42
43		###############################################################
44
45		#input obj
46		file_name=hou.ui.selectFile(file_type=hou.fileType.Geometry)
47		file_old=file_name
48		file_name=string.replace(file_name,'$HIP',hou.expandString('$HIP'),1)
49		file_path=os.path.split(file_old)[0]
50
51		geo = hou.node('/obj').createNode('geo')
52	-	geo.node('file1').parm('file').set(file_old)
52	+	fl=geo.createNode('file')
53		fl.parm('file').set(file_old)
54		fl.moveToGoodPosition()
55		geo.moveToGoodPosition()
56		name=os.path.splitext(os.path.basename(file_name))[0].replace(' ','_')
57		if name[0].isdigit(): #Houdini does not allow to name nodes with first digit character
58		name="_"+name
59		geo.setName(name,True) # replace space with _
60
61		mysop=geo.node('file1').createOutputNode('attribstringedit')
62		mysop.moveToGoodPosition()
63
64		shop=geo.createNode('shopnet')
65		shop.moveToGoodPosition()
66
67		# create node to relink materials to internal shopnet
68	-	mysop.parm('from0').set('/shop/')
68	+
69		mysop.parm('regex0').set(1)
70		mysop.parm('from0').set('/mat/')
71		mysop.parm('to0').set('`opfullpath("../shopnet1")+"/"`')
72		mysop.setDisplayFlag(True)
73		mysop.setRenderFlag(True)
74
75		# Create shaders
76
77		file_name=os.path.splitext(file_name)[0]+".mtl"
78		# if mtl file not found
79		if not os.path.isfile(file_name):
80		print('No mtl file, choose manually')
81		file_name=hou.ui.selectFile()
82		error=0
83		last=mysop
84		cur_mat = None
85		with open(file_name, 'r') as f:
86		lines = f.read().splitlines() # Read lines
87		f.close()
88
89		for line in lines:
90		line=line.lstrip() # remove beginning spaces
91		line=' '.join(line.split()) # remove double spaces
92		ary = line.split(' ')
93		if ary[0] == 'newmtl':
94		# Grab the name of this new material
95		mat_name = ary[1]
96		cur_mat = shop.createNode(shader)
97		cur_mat.moveToGoodPosition()
98		if cur_mat.parm('normalTexType'):
99		cur_mat.parm('normalTexType').set('bump') # Only for Mantra
100		# check if first symbol of mat name is digit (prohibited in Houdini)
101		if mat_name[0].isdigit():
102		print('MAT NAME CHANGED!')
103		# Create node to rename material
104		mysop=last.createOutputNode('attribstringedit')
105		mysop.moveToGoodPosition()
106		mysop.parm('primattriblist').set('shop_materialpath')
107		mysop.parm('regex0').set(1)
108		mysop.parm('from0').set('shopnet1/'+mat_name)
109		mysop.parm('to0').set('shopnet1/_'+mat_name)
110		mysop.setDisplayFlag(True)
111		mysop.setRenderFlag(True)
112		last=mysop
113		mat_name='_'+mat_name
114
115		# check if mat name has prohibited characters
116		if not re.match(r'[:\w-]*$', mat_name):
117		print('Mat name is changed')
118		mysop=last.createOutputNode('attribstringedit')
119		mysop.moveToGoodPosition()
120		mysop.parm('primattriblist').set('shop_materialpath')
121		mysop.parm('regex0').set(1)
122		mysop.parm('from0').set('shopnet1/'+mat_name)
123		mysop.parm('to0').set('shopnet1/_'+'mat_changed_'+str(error))
124		mysop.setDisplayFlag(True)
125		mysop.setRenderFlag(True)
126		last=mysop
127		mat_name='_'+'mat_changed_'+str(error)
128		error+=1
129
130		cur_mat.setName(mat_name,True) #rename material
131
132		if ary[0] == 'Kd':
133		# Found a diffuse color.
134		if len(ary) == 4:
135		cur_mat.setParms({difr: float(ary[1]),difg: float(ary[2]),difb: float(ary[3])})
136		if ary[0] == 'Ks':
137		# Found a specular color.
138		if len(ary) == 4:
139		cur_mat.setParms({specr: float(ary[1]),specg: float(ary[2]),specb: float(ary[3])})
140
141		if ary[0] == 'd':
142		# Found opacity.
143		cur_mat.setParms({opacity: float(ary[1])})
144
145		if ary[0] == 'Ni':
146		# Found IOR parameter
147		cur_mat.setParms({ior: float(ary[1])})
148
149
150		# maps
151		if ary[0]== 'map_Kd' and len(ary)>1:
152		cur_mat.setParms({use_diffmap:1})
153		cur_mat.setParms({diff_map:file_path+'/'+pathCorrect(ary[-1])}) # only last word in a string
154
155		if ary[0]== 'map_Ks' and len(ary)>1:
156		cur_mat.setParms({use_specmap:1})
157		cur_mat.setParms({spec_map:file_path+'/'+pathCorrect(ary[-1])})
158
159		if ary[0]== 'map_d' and len(ary)>1:
160		cur_mat.setParms({use_alphamap:1})
161		cur_mat.setParms({alpha_map:file_path+'/'+pathCorrect(ary[-1])})
162
163		if ary[0]== 'map_bump' and len(ary)>1:
164		cur_mat.setParms({use_bumpmap:1})
165		cur_mat.setParms({bump_map:file_path+'/'+pathCorrect(ary[-1])})
166
167
168		mysop=last.createOutputNode('xform')
169		mysop.moveToGoodPosition()
170		mysop.setDisplayFlag(True)
171		mysop.setRenderFlag(True)