def _create_particle(self,value,*argv):
global n_particle_create
pmel.emitter( r=value,dx=1, dy=0, dz=0, sp=0, nsp=0, n='myRandomEmitter' ,type='surface')
n_particle_create = pmel.nParticle( n='emittedParticles' )
n_particle_create[1].maxCount.set(value)
nucleus = pmel.listConnections(n_particle_create,t='nucleus')
nucleus[0].gravity.set(0)
pmel.connectDynamic( 'emittedParticles', em='myRandomEmitter')
self.list_emitter_delete.append('myRandomEmitter')
self.list_emitter_delete.append(n_particle_create)
self.list_emitter_delete.append(nucleus)
def _initialize(self,args):
#Initialize
partTarget = self.inputBar.getText()
partNameBase = self.inputName.getText()
if partTarget=='' or partNameBase=='':
pm.error("Must input both fields to continue...")
partName = partNameBase + '_NPARTICLE'
partNucleus = partNameBase + '_NUCLEUS'
partEmitter = partNameBase + '_EMITTER'
#First thing we will do is Emit from Surface with an Emiter
self.emitter = pm.emitter(partTarget, type='surface',name=partEmitter,r=5000,sro=0,nuv=0,cye='none',cyi=1,spd=0,srn=0,nsp=0,tsp=0,mxd=0,mnd=0,dx=1,dy=0,dz=0,sp=0)
emitter=self.emitter
self.nparticle = pm.nParticle(n=partName)
npart=self.nparticle
if '2012' in str(pm.versions.current()):
import maya.cmds as cmds
self.nucleus = cmds.listConnections(self.nparticle[1].name(), type='nucleus')[0]
cmds.setAttr((self.nucleus+'.gravity'), 0)
cmds.setAttr((self.nucleus+'.startFrame'), pm.playbackOptions(q=True,ast=True))
cmds.rename(self.nucleus, partNucleus)
self.nucleus=partNucleus
elif '2015' in str(pm.versions.current()) or '2014' in str(pm.versions.current()):
self.nucleus=pm.PyNode(set(npart[1].listConnections(type='nucleus')).pop())
nucleus=self.nucleus
nucleus.rename(partNucleus)
nucleus.gravity.set(0)
nucleus.startFrame.set(pm.playbackOptions(q=True,ast=True))
else:
pm.error("This maya version is unsupported by this script")
#Set the Nucleus to no gravity + start time to first frame
pm.currentTime( pm.playbackOptions(q=True,ast=True), e=True )
pm.connectDynamic(npart, em=emitter)
#Set up the nParticle:
#add per particle attributes
vattrs = ['posPP', 'rotPP', 'scalePP']
for vattr in vattrs:
npart[1].addAttr(vattr, k=1, dt='vectorArray')
npart[1].addAttr(vattr+'0', dt='vectorArray')
fattrs = ['indexPP']
for fattr in fattrs:
npart[1].addAttr(fattr, k=1, dt='doubleArray')
npart[1].addAttr(fattr+'0', k=1, dt='doubleArray')
#add dynamic expressions ala Vicky Osborne
self._dynExpr()
#Change shading type to points
npart[1].particleRenderType.set(3)
def createParticleEmitter(self, meshEmitter, collider):
# Force nParticle balls at creation
pm.optionVar(sv=("NParticleStyle", "Balls"))
self.particle, self.partShape = pm.nParticle(n=str(meshEmitter) + "_particle")
# Add attribute in particleShape
pm.addAttr(self.partShape, ln="indexPP", dt="doubleArray")
pm.addAttr(self.partShape, ln="rotatePP", dt="vectorArray")
pm.addAttr(self.partShape, ln="scalePP", dt="vectorArray")
pm.addAttr(self.partShape, ln="rgbPP", dt="vectorArray")
pm.addAttr(self.partShape, ln="fixPosPP", dt="vectorArray")
pm.addAttr(self.partShape, ln="opacityPP", dt="doubleArray")
pm.addAttr(self.partShape, ln="typePP", dt="doubleArray")
self.nameEmitter = str(meshEmitter) + "_emitter"
pm.emitter(meshEmitter, type="surface", name=self.nameEmitter, r=float(self.ui.simulationEmit_le.text()))
pm.connectDynamic(self.partShape, em=self.nameEmitter)
# Used maya command because pymel crash when find nucleus node
self.nucleusName = mel.eval('listConnections -type "nucleus" ' + self.partShape + ";")[0]
pm.parent(self.partShape, self.worldParent)
pm.parent(self.nameEmitter, self.worldParent)
pm.parent(self.nucleusName, self.worldParent)
self.setParamaters(self.partShape, self.particleParameter)
self.setParamaters(self.nameEmitter, self.emitterParameter)
self.setParamaters(self.nucleusName, self.nucleusParameter)
pm.addAttr(self.partShape, ln="radiusPP", dt="doubleArray")
# Create Rigid
pm.select(collider, r=1)
pm.runtime.nClothMakeCollide(collider)
self.nrigid = pm.listConnections(collider.listRelatives(s=1, c=1)[0], type="nRigid")[0]
self.setParamaters(self.nrigid.listRelatives(s=1, c=1)[0], self.rigidParameter)
pm.parent(self.nrigid, self.worldParent)
self.nrigid.setAttr("v", 0)
# Create instancer
self.instancer = pm.particleInstancer(
self.partShape,
a=True,
object=self.listInstance,
n=str(meshEmitter) + "_instancer",
cycle="sequential",
age="indexPP",
rotation="rotatePP",
scale="scalePP",
visibility="opacityPP",
)
pm.parent(self.instancer, self.worldParent)
# Create proc Colision
expression = """
global proc forestGeneratorEvent(string $particleObject,int $particleId, string $geometryObject)
{
vector $rgb = `nParticle -attribute rgbPP -id $particleId -q $particleObject`;
if ($rgb != << 1,1,1 >>)
{
nParticle -e -attribute rgbPP -id $particleId -vv 0 1 0 $particleObject;
}
vector $pos = `nParticle -attribute position -id $particleId -q $particleObject`;
vector $lastPos = `nParticle -attribute lastPosition -id $particleId -q $particleObject`;
nParticle -e -attribute opacityPP -id $particleId -fv 1 $particleObject;
if (mag($pos - $lastPos) >= 10 && $rgb != << 1,1,1 >>){
nParticle -e -attribute lifespanPP -id $particleId -fv 0 $particleObject;
}
}"""
pm.expression(s=expression, n="forestGenerator_exp")
# Create Colision event
pm.event(self.partShape, die=0, count=0, proc="forestGeneratorEvent")
def updateRadius(self):
if self.ui.updateRadiusBy_le.text() == "":
return
reduce = float(self.ui.updateRadiusBy_le.text())
for x in self.partShape.getAttr("id"):
t = pm.nParticle(self.partShape, q=1, at="typePP", id=x)[0]
r = pm.nParticle(self.partShape, q=1, at="radiusPP", id=x)[0]
pos = pm.nParticle(self.partShape, q=1, at="position", id=x)
pm.nParticle(self.partShape, e=1, at="fixPosPP", vv=(pos[0], pos[1], pos[2]), id=x)
p = pm.nParticle(self.partShape, q=1, at="fixPosPP", id=x)
if t == self.ui.updateRadiusType_cb.currentIndex():
if self.ui.updateRadiusOp_cb.currentText() == "Divide":
nR = r / reduce
elif self.ui.updateRadiusOp_cb.currentText() == "Multiply":
nR = r * reduce
pm.nParticle(self.partShape, e=1, at="fixPosPP", vv=(p[0], p[1] - (r - nR), p[2]), id=x)
pm.nParticle(self.partShape, e=1, at="radiusPP", fv=nR, id=x)
print p, pm.nParticle(self.partShape, q=1, at="fixPosPP", id=x)
#
# Model of E. coli
#
# Spatial Scale: 1 micron
# Simulation Engine: Nucleus
#
import pymel.core as pm
import maya.cmds as mc
import maya.mel as mel
pm_parts = pm.nParticle( p=[(0, 0, -6), (0, 0, 6)], n="parts")
# protects against multiple objects called "parts"
parts_nm = pm_parts[1].name()
p_shape = mc.select(parts_nm) # returns name (string)
mc.addAttr(ln="radiusPP", dt="doubleArray", w=True, r=True)
mc.setAttr("%s.selfCollide"%parts_nm,1)
#blobby surface
mc.setAttr("%s.particleRenderType"%parts_nm,7)
#make plane
mc.select("nucleus1")
mc.setAttr("nucleus1.usePlane",1)
mc.select(parts_nm)
mc.addAttr(ln="rgbPP", dt="vectorArray", w=True, r=True)
def createParticleEmitter(self, meshEmitter, collider):
# Force nParticle balls at creation
pm.optionVar(sv=("NParticleStyle", "Balls"))
self.particle, self.partShape = pm.nParticle(n=str(meshEmitter) +
"_particle")
#Add attribute in particleShape
pm.addAttr(self.partShape, ln="indexPP", dt="doubleArray")
pm.addAttr(self.partShape, ln="rotatePP", dt="vectorArray")
pm.addAttr(self.partShape, ln="scalePP", dt="vectorArray")
pm.addAttr(self.partShape, ln="rgbPP", dt="vectorArray")
pm.addAttr(self.partShape, ln="fixPosPP", dt="vectorArray")
pm.addAttr(self.partShape, ln="opacityPP", dt="doubleArray")
pm.addAttr(self.partShape, ln="typePP", dt="doubleArray")
self.nameEmitter = str(meshEmitter) + "_emitter"
pm.emitter(meshEmitter,
type="surface",
name=self.nameEmitter,
r=float(self.ui.simulationEmit_le.text()))
pm.connectDynamic(self.partShape, em=self.nameEmitter)
#Used maya command because pymel crash when find nucleus node
self.nucleusName = mel.eval("listConnections -type \"nucleus\" " +
self.partShape + ";")[0]
pm.parent(self.partShape, self.worldParent)
pm.parent(self.nameEmitter, self.worldParent)
pm.parent(self.nucleusName, self.worldParent)
self.setParamaters(self.partShape, self.particleParameter)
self.setParamaters(self.nameEmitter, self.emitterParameter)
self.setParamaters(self.nucleusName, self.nucleusParameter)
pm.addAttr(self.partShape, ln="radiusPP", dt="doubleArray")
#Create Rigid
pm.select(collider, r=1)
pm.runtime.nClothMakeCollide(collider)
self.nrigid = pm.listConnections(collider.listRelatives(s=1, c=1)[0],
type='nRigid')[0]
self.setParamaters(
self.nrigid.listRelatives(s=1, c=1)[0], self.rigidParameter)
pm.parent(self.nrigid, self.worldParent)
self.nrigid.setAttr("v", 0)
#Create instancer
self.instancer = pm.particleInstancer(self.partShape,
a=True,
object=self.listInstance,
n=str(meshEmitter) +
"_instancer",
cycle="sequential",
age="indexPP",
rotation="rotatePP",
scale="scalePP",
visibility="opacityPP")
pm.parent(self.instancer, self.worldParent)
#Create proc Colision
expression = """
global proc forestGeneratorEvent(string $particleObject,int $particleId, string $geometryObject)
{
vector $rgb = `nParticle -attribute rgbPP -id $particleId -q $particleObject`;
if ($rgb != << 1,1,1 >>)
{
nParticle -e -attribute rgbPP -id $particleId -vv 0 1 0 $particleObject;
}
vector $pos = `nParticle -attribute position -id $particleId -q $particleObject`;
vector $lastPos = `nParticle -attribute lastPosition -id $particleId -q $particleObject`;
nParticle -e -attribute opacityPP -id $particleId -fv 1 $particleObject;
if (mag($pos - $lastPos) >= 10 && $rgb != << 1,1,1 >>){
nParticle -e -attribute lifespanPP -id $particleId -fv 0 $particleObject;
}
}"""
pm.expression(s=expression, n="forestGenerator_exp")
#Create Colision event
pm.event(self.partShape, die=0, count=0, proc="forestGeneratorEvent")
def updateRadius(self):
if self.ui.updateRadiusBy_le.text() == "": return
reduce = float(self.ui.updateRadiusBy_le.text())
for x in self.partShape.getAttr("id"):
t = pm.nParticle(self.partShape, q=1, at="typePP", id=x)[0]
r = pm.nParticle(self.partShape, q=1, at="radiusPP", id=x)[0]
pos = pm.nParticle(self.partShape, q=1, at="position", id=x)
pm.nParticle(self.partShape,
e=1,
at="fixPosPP",
vv=(pos[0], pos[1], pos[2]),
id=x)
p = pm.nParticle(self.partShape, q=1, at="fixPosPP", id=x)
if t == self.ui.updateRadiusType_cb.currentIndex():
if self.ui.updateRadiusOp_cb.currentText() == "Divide":
nR = r / reduce
elif self.ui.updateRadiusOp_cb.currentText() == "Multiply":
nR = r * reduce
pm.nParticle(self.partShape,
e=1,
at="fixPosPP",
vv=(p[0], p[1] - (r - nR), p[2]),
id=x)
pm.nParticle(self.partShape, e=1, at="radiusPP", fv=nR, id=x)
print p, pm.nParticle(self.partShape, q=1, at="fixPosPP", id=x)
