-
Notifications
You must be signed in to change notification settings - Fork 10
/
Copy pathtwistNode.py
147 lines (116 loc) · 5.01 KB
/
twistNode.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
import maya.OpenMaya as OpenMaya
import maya.OpenMayaMPx as OpenMayaMPx
AUTHOR = '-:macaroniKazoo:-'
VERSION = '1.0'
NODE_NAME = 'twister'
ID = OpenMaya.MTypeId( 0x43899 )
class twister( OpenMayaMPx.MPxNode ):
aInWorldMatrixA = OpenMaya.MObject()
aInWorldMatrixB = OpenMaya.MObject()
aAxisA = OpenMaya.MObject()
aAxisB = OpenMaya.MObject()
aDivider = OpenMaya.MObject()
aOutRotate = OpenMaya.MObject()
aOutRotateX = OpenMaya.MObject()
aOutRotateY = OpenMaya.MObject()
aOutRotateZ = OpenMaya.MObject()
def __init__( self ):
OpenMayaMPx.MPxNode.__init__(self)
def compute( self, plug, data ):
if plug == self.aOutRotate or plug == self.aOutRotateX or plug == self.aOutRotateY or plug == self.aOutRotateZ:
#get handles to the attributes
hInWorldMatrixA = data.inputValue(self.aInWorldMatrixA)
matWorldA = hInWorldMatrixA.asMatrix()
matWorldAinv = matWorldA.inverse()
hInWorldMatrixB = data.inputValue(self.aInWorldMatrixB)
matWorldB = hInWorldMatrixB.asMatrix()
hAxisA = data.inputValue(self.aAxisA)
nAxisA = hAxisA.asShort()
hAxisB = data.inputValue(self.aAxisB)
nAxisB = hAxisB.asShort()
hDivider = data.inputValue(self.aDivider)
dDivider = hDivider.asDouble()
#build the vectors to compare
axes = OpenMaya.MVector(1,0,0),OpenMaya.MVector(0,1,0),OpenMaya.MVector(0,0,1)
#any index above 2 is just one of the first 3 axes negated - so deal with it
vVecA = OpenMaya.MVector( axes[nAxisA%3] ) #make a copy of the vectors
vVecB = OpenMaya.MVector( axes[nAxisB%3] )
if nAxisA > 2: vVecA *= -1
if nAxisB > 2: vVecB *= -1
#put the B vector into the space of inputA so we can meaningfully compare them to get an angle between
vVecB *= matWorldB
vVecB *= matWorldAinv
#finally grab the rotation between them and push it out to outRotate
qRotBetween = OpenMaya.MQuaternion(vVecA,vVecB,(1/dDivider))
asEuler = qRotBetween.asEulerRotation()
#grab the output attribute handles and set their values
hOutRotateX = data.outputValue( self.aOutRotateX )
hOutRotateY = data.outputValue( self.aOutRotateY )
hOutRotateZ = data.outputValue( self.aOutRotateZ )
hOutRotateX.setDouble( asEuler.x )
hOutRotateY.setDouble( asEuler.y )
hOutRotateZ.setDouble( asEuler.z )
#mark all attributes as clean
data.setClean(self.aOutRotate)
data.setClean(self.aOutRotateX)
data.setClean(self.aOutRotateY)
data.setClean(self.aOutRotateZ)
else:
return OpenMaya.MStatus.kUnknownParameter
return OpenMaya.MStatus.kSuccess
def initializePlugin( mObject ):
mPlugin = OpenMayaMPx.MFnPlugin( mObject, AUTHOR, VERSION, "Any" )
mPlugin.registerNode( NODE_NAME, ID, nodeCreator, nodeInitializer )
def uninitializePlugin( mObject ):
plugin = OpenMayaMPx.MFnPlugin( mObject )
plugin.deregisterNode( ID )
def nodeCreator():
return OpenMayaMPx.asMPxPtr( twister() )
def nodeInitializer():
nAttr = OpenMaya.MFnNumericAttribute()
mAttr = OpenMaya.MFnMatrixAttribute()
eAttr = OpenMaya.MFnEnumAttribute()
cAttr = OpenMaya.MFnCompoundAttribute()
twister.aInWorldMatrixA = mAttr.create( "inWorldMatrixA", "iwma" )
twister.aInWorldMatrixB = mAttr.create( "inWorldMatrixB", "iwmb" )
twister.aAxisA = eAttr.create("axisA", "axa", 0 )
eAttr.setChannelBox(True)
eAttr.setKeyable(True)
eAttr.addField( "X", 0 )
eAttr.addField( "Y", 1 )
eAttr.addField( "Z", 2 )
eAttr.addField( "-X", 3 )
eAttr.addField( "-Y", 4 )
eAttr.addField( "-Z", 5 )
twister.aAxisB = eAttr.create("axisB", "axb", 0 )
eAttr.setChannelBox(True)
eAttr.setKeyable(True)
eAttr.addField( "X", 0 )
eAttr.addField( "Y", 1 )
eAttr.addField( "Z", 2 )
eAttr.addField( "-X", 3 )
eAttr.addField( "-Y", 4 )
eAttr.addField( "-Z", 5 )
twister.aDivider = nAttr.create( "divider", "div", OpenMaya.MFnNumericData.kDouble, 1 )
nAttr.setMin(0.001)
nAttr.setChannelBox(True)
nAttr.setKeyable(True)
twister.aOutRotateX = nAttr.create( "outRotateX", "orx", OpenMaya.MFnNumericData.kDouble, 0.0 )
twister.aOutRotateY = nAttr.create( "outRotateY", "ory", OpenMaya.MFnNumericData.kDouble, 0.0 )
twister.aOutRotateZ = nAttr.create( "outRotateZ", "orz", OpenMaya.MFnNumericData.kDouble, 0.0 )
twister.aOutRotate = cAttr.create( "outRotate", "or")
cAttr.addChild( twister.aOutRotateX )
cAttr.addChild( twister.aOutRotateY )
cAttr.addChild( twister.aOutRotateZ )
twister.addAttribute( twister.aInWorldMatrixA )
twister.addAttribute( twister.aInWorldMatrixB )
twister.addAttribute( twister.aAxisA )
twister.addAttribute( twister.aAxisB )
twister.addAttribute( twister.aDivider )
twister.addAttribute( twister.aOutRotate )
#setup dependency relationships
twister.attributeAffects( twister.aInWorldMatrixA, twister.aOutRotate )
twister.attributeAffects( twister.aInWorldMatrixB, twister.aOutRotate )
twister.attributeAffects( twister.aDivider, twister.aOutRotate )
twister.attributeAffects( twister.aAxisB, twister.aOutRotate )
twister.attributeAffects( twister.aAxisB, twister.aOutRotate )