def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -2)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
for i in range(50):
p00 = Point3(-2, -2, 0)
p10 = Point3( 2, -2, 0)
p01 = Point3(-2, 2, 0)
p11 = Point3( 2, 2, 0)
node = BulletSoftBodyNode.makePatch(info, p00, p10, p01, p11, 6, 6, 0, True)
node.generateBendingConstraints(2)
node.getCfg().setLiftCoefficient(0.004)
node.getCfg().setDynamicFrictionCoefficient(0.0003)
node.getCfg().setAeroModel(BulletSoftBodyConfig.AMVertexTwoSided)
node.setTotalMass(0.1)
node.addForce(Vec3(0, 2, 0), 0)
np = self.worldNP.attachNewNode(node)
np.setPos(self.Vec3Rand() * 10 + Vec3(0, 0, 20))
np.setHpr(self.Vec3Rand() * 16)
self.world.attachSoftBody(node)
fmt = GeomVertexFormat.getV3n3t2()
geom = BulletHelper.makeGeomFromFaces(node, fmt, True)
node.linkGeom(geom)
nodeV = GeomNode('')
nodeV.addGeom(geom)
npV = np.attachNewNode(nodeV)
def make_SB(pos, hpr):
#use this to construct a torus geom.
#import torus
#geom = torus.make_geom()
geom = (loader.load_model('models/torus.egg').find_all_matches(
'**/+GeomNode').get_path(0).node().modify_geom(0))
geomNode = GeomNode('')
geomNode.add_geom(geom)
node = BulletSoftBodyNode.make_tri_mesh(info, geom)
node.link_geom(geomNode.modify_geom(0))
node.generate_bending_constraints(2)
node.get_cfg().set_positions_solver_iterations(2)
node.get_cfg().set_collision_flag(
BulletSoftBodyConfig.CF_vertex_face_soft_soft, True)
node.randomize_constraints()
node.set_total_mass(50, True)
softNP = self.worldNP.attach_new_node(node)
softNP.set_pos(pos)
softNP.set_hpr(hpr)
self.world.attach(node)
geomNP = softNP.attach_new_node(geomNode)
def makeSB(pos, hpr):
model = loader.loadModel('moleculemesh/smoothed/clathrinfixsmth%02d.obj' % np.random.randint(1,21))
geom = model.findAllMatches('**/+GeomNode').getPath(0).node().modifyGeom(0)
geomNode = GeomNode('')
geomNode.addGeom(geom)
node = BulletSoftBodyNode.makeTriMesh(info, geom)
node.linkGeom(geomNode.modifyGeom(0))
node.generateBendingConstraints(2)
node.getCfg().setPositionsSolverIterations(6)
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFVertexFaceSoftSoft, True)
node.randomizeConstraints()
node.setTotalMass(50, True)
node.getMaterial(0).setLinearStiffness(0.2)
#node.getCfg().setDynamicFrictionCoefficient(1)
#node.getCfg().setDampingCoefficient(0.001)
node.getCfg().setPressureCoefficient(1500)
softNP = self.worldNP.attachNewNode(node)
softNP.setPos(pos)
softNP.setHpr(hpr)
self.world.attachSoftBody(node)
geomNP = softNP.attachNewNode(geomNode)
#softNP.node().appendAnchor(1, self.ground.node())
softNP.node().appendAnchor(1217, self.ground.node())
softNP.node().appendAnchor(1157, self.ground.node())
softNP.node().appendAnchor(2052, self.ground.node())
#softNP.node().appendAnchor(1800, self.ground.node())
softNP.reparentTo(self.mybase)
def makeSB(pos, hpr):
import torus
geom = torus.makeGeom()
#geom = loader.loadModel('models/torus.egg') \
# .findAllMatches('**/+GeomNode').getPath(0).node() \
# .modifyGeom(0)
geomNode = GeomNode('')
geomNode.addGeom(geom)
node = BulletSoftBodyNode.makeTriMesh(info, geom)
node.linkGeom(geomNode.modifyGeom(0))
node.generateBendingConstraints(2)
node.getCfg().setPositionsSolverIterations(2)
node.getCfg().setCollisionFlag(
BulletSoftBodyConfig.CFVertexFaceSoftSoft, True)
node.randomizeConstraints()
node.setTotalMass(50, True)
softNP = self.worldNP.attachNewNode(node)
softNP.setPos(pos)
softNP.setHpr(hpr)
self.world.attachSoftBody(node)
geomNP = softNP.attachNewNode(geomNode)
def makeSB(pos, hpr):
import torus
geom = torus.makeGeom()
#geom = loader.loadModel('models/torus.egg') \
# .findAllMatches('**/+GeomNode').getPath(0).node() \
# .modifyGeom(0)
geomNode = GeomNode('')
geomNode.addGeom(geom)
node = BulletSoftBodyNode.makeTriMesh(info, geom)
node.linkGeom(geomNode.modifyGeom(0))
node.generateBendingConstraints(2)
node.getCfg().setPositionsSolverIterations(2)
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFVertexFaceSoftSoft, True)
node.randomizeConstraints()
node.setTotalMass(50, True)
softNP = self.worldNP.attachNewNode(node)
softNP.setPos(pos)
softNP.setHpr(hpr)
self.world.attachSoftBody(node)
geomNP = softNP.attachNewNode(geomNode)
def make(p1):
n = 8
p2 = p1 + Vec3(10, 0, 0)
bodyNode = BulletSoftBodyNode.makeRope(info, p1, p2, n, 1)
bodyNode.setTotalMass(50.0)
bodyNP = self.worldNP.attachNewNode(bodyNode)
self.world.attachSoftBody(bodyNode)
# Render option 1: Line geom
#geom = BulletSoftBodyNode.makeGeomFromLinks(bodyNode)
#bodyNode.linkGeom(geom)
#visNode = GeomNode('')
#visNode.addGeom(geom)
#visNP = bodyNP.attachNewNode(visNode)
# Render option 2: NURBS curve
curve = NurbsCurveEvaluator()
curve.reset(n + 2)
bodyNode.linkCurve(curve)
visNode = RopeNode('')
visNode.setCurve(curve)
visNode.setRenderMode(RopeNode.RMTube)
visNode.setUvMode(RopeNode.UVParametric)
visNode.setNumSubdiv(4)
visNode.setNumSlices(8)
visNode.setThickness(0.4)
visNP = self.worldNP.attachNewNode(visNode)
#visNP = bodyNP.attachNewNode(visNode) # --> renders with offset!!!
visNP.setTexture(loader.loadTexture('models/iron.jpg'))
#bodyNP.showBounds()
#visNP.showBounds()
return bodyNP
def addTetraMeshSB(self,vertices, faces,normals = None,ghost=False,**kw):
#step 1) create GeomVertexData and add vertex information
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
points = [Point3(x,y,z) * 3 for x,y,z in vertices]
indices = sum([list(x) for x in faces], [])
#step 4) create the bullet softbody and node
bodyNode = BulletSoftBodyNode.makeTetMesh(info, points, indices, True)
bodyNode.setName('Tetra')
bodyNode.setVolumeMass(150000)
bodyNode.getShape(0).setMargin(0.01)
bodyNode.getMaterial(0).setLinearStiffness(0.9)
bodyNode.getCfg().setPositionsSolverIterations(4)
bodyNode.getCfg().clearAllCollisionFlags()
bodyNode.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterSoftSoft, True)
bodyNode.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterRigidSoft, True)
bodyNode.generateClusters(12)
bodyNode.setPose(True, True)
bodyNP = self.worldNP.attachNewNode(bodyNode)
geom = BulletHelper.makeGeomFromFaces(bodyNode)
geomNode = GeomNode('vtetra')
geomNode.addGeom(geom)
# self.setRB(bodyNP,**kw)#set po
# inodenp.setCollideMask(BitMask32.allOn())
self.world.attachSoftBody(bodyNode)
geomNP = bodyNP.attachNewNode(geomNode)
bodyNode.linkGeom(geom)
return bodyNP,geomNP
def make(p1):
n = 8
p2 = p1 + Vec3(10, 0, 0)
bodyNode = BulletSoftBodyNode.makeRope(info, p1, p2, n, 1)
bodyNode.setTotalMass(50.0)
bodyNP = self.worldNP.attachNewNode(bodyNode)
self.world.attachSoftBody(bodyNode)
# Render option 1: Line geom
#geom = BulletSoftBodyNode.makeGeomFromLinks(bodyNode)
#bodyNode.linkGeom(geom)
#visNode = GeomNode('')
#visNode.addGeom(geom)
#visNP = bodyNP.attachNewNode(visNode)
# Render option 2: NURBS curve
curve = NurbsCurveEvaluator()
curve.reset(n + 2)
bodyNode.linkCurve(curve)
visNode = RopeNode('')
visNode.setCurve(curve)
visNode.setRenderMode(RopeNode.RMTube)
visNode.setUvMode(RopeNode.UVParametric)
visNode.setNumSubdiv(4)
visNode.setNumSlices(8)
visNode.setThickness(0.4)
visNP = self.worldNP.attachNewNode(visNode)
#visNP = bodyNP.attachNewNode(visNode) # --> renders with offset!!!
visNP.setTexture(loader.loadTexture('models/iron.jpg'))
#bodyNP.showBounds()
#visNP.showBounds()
return bodyNP
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Box
shape = BulletBoxShape(Vec3(0.5, 0.5, 0.5) * 2.0)
boxNP = self.worldNP.attachNewNode(BulletRigidBodyNode('Box'))
boxNP.node().setMass(150.0)
boxNP.node().addShape(shape)
boxNP.setPos(0, 0, 2)
boxNP.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(boxNP.node())
visualNP = loader.loadModel('models/box.egg')
visualNP.clearModelNodes()
visualNP.setScale(2.0)
visualNP.reparentTo(boxNP)
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
nx = 31
ny = 31
p00 = Point3(-8, -8, 0)
p10 = Point3(8, -8, 0)
p01 = Point3(-8, 8, 0)
p11 = Point3(8, 8, 0)
bodyNode = BulletSoftBodyNode.makePatch(info, p00, p10, p01, p11, nx,
ny, 1 + 2 + 4 + 8, True)
material = bodyNode.appendMaterial()
material.setLinearStiffness(0.4)
bodyNode.generateBendingConstraints(2, material)
bodyNode.setTotalMass(50.0)
bodyNode.getShape(0).setMargin(0.5)
bodyNP = self.worldNP.attachNewNode(bodyNode)
self.world.attachSoftBody(bodyNode)
# Rendering with Geom:
fmt = GeomVertexFormat.getV3n3t2()
geom = BulletHelper.makeGeomFromFaces(bodyNode, fmt, True)
bodyNode.linkGeom(geom)
visNode = GeomNode('')
visNode.addGeom(geom)
visNP = bodyNP.attachNewNode(visNode)
# Now we want to have a texture and texture coordinates.
# The geom's format has already a column for texcoords, so we just need
# to write texcoords using a GeomVertexRewriter.
tex = loader.loadTexture('models/panda.jpg')
visNP.setTexture(tex)
BulletHelper.makeTexcoordsForPatch(geom, nx, ny)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
#self.debugNP.showTightBounds()
#self.debugNP.showBounds()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -2)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Stair
origin = Point3(0, 0, 0)
size = Vec3(2, 10, 1)
shape = BulletBoxShape(size * 0.5)
for i in range(10):
pos = origin + size * i
pos.setY(0)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Stair%i' % i))
np.node().addShape(shape)
np.setPos(pos)
np.setCollideMask(BitMask32.allOn())
npV = loader.loadModel('models/box.egg')
npV.reparentTo(np)
npV.setScale(size)
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
center = Point3(0, 0, 0)
radius = Vec3(1, 1, 1) * 1.5
node = BulletSoftBodyNode.makeEllipsoid(info, center, radius, 128)
node.setName('Ellipsoid')
node.getMaterial(0).setLinearStiffness(0.1)
node.getCfg().setDynamicFrictionCoefficient(1)
node.getCfg().setDampingCoefficient(0.001)
node.getCfg().setPressureCoefficient(1500)
node.setTotalMass(30, True)
node.setPose(True, False)
np = self.worldNP.attachNewNode(node)
np.setPos(15, 0, 12)
#np.setH(90.0)
#np.showBounds()
#np.showTightBounds()
self.world.attachSoftBody(np.node())
geom = BulletHelper.makeGeomFromFaces(node)
node.linkGeom(geom)
nodeV = GeomNode('EllipsoidVisual')
nodeV.addGeom(geom)
npV = np.attachNewNode(nodeV)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -4)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody - From points/indices
#import cube
#points = [Point3(x,y,z) * 3 for x,y,z in cube.nodes]
#indices = sum([list(x) for x in cube.elements], [])
#node = BulletSoftBodyNode.makeTetMesh(info, points, indices, True)
#node.setVolumeMass(300);
#node.getShape(0).setMargin(0.01)
#node.getMaterial(0).setLinearStiffness(0.8)
#node.getCfg().setPositionsSolverIterations(1)
#node.getCfg().clearAllCollisionFlags()
#node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterSoftSoft, True)
#node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterRigidSoft, True)
#node.generateClusters(16)
#softNP = self.worldNP.attachNewNode(node)
#softNP.setPos(0, 0, 8)
#softNP.setHpr(0, 0, 45)
#self.world.attachSoftBody(node)
# Softbody - From tetgen data
ele = open('models/cube/cube.1.ele', 'r').read()
face = open('models/cube/cube.1.face', 'r').read()
node = open('models/cube/cube.1.node', 'r').read()
node = BulletSoftBodyNode.makeTetMesh(info, ele, face, node)
node.setName('Tetra')
node.setVolumeMass(300)
node.getShape(0).setMargin(0.01)
node.getMaterial(0).setLinearStiffness(0.1)
node.getCfg().setPositionsSolverIterations(1)
node.getCfg().clearAllCollisionFlags()
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterSoftSoft,
True)
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterRigidSoft,
True)
node.generateClusters(6)
softNP = self.worldNP.attachNewNode(node)
softNP.setPos(0, 0, 8)
softNP.setHpr(45, 0, 0)
self.world.attachSoftBody(node)
# Option 1:
visNP = loader.loadModel('models/cube/cube.egg')
visNP.reparentTo(softNP)
geom = visNP \
.findAllMatches('**/+GeomNode').getPath(0).node() \
.modifyGeom(0)
node.linkGeom(geom)
def setup(self):
self.worldNP = render.attach_new_node('World')
# World
self.debugNP = self.worldNP.attach_new_node(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.set_gravity(LVector3(0, 0, -9.81))
self.world.set_debug_node(self.debugNP.node())
# Ground
p0 = LPoint3(-20, -20, 0)
p1 = LPoint3(-20, 20, 0)
p2 = LPoint3(20, -20, 0)
p3 = LPoint3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.add_triangle(p0, p1, p2)
mesh.add_triangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attach_new_node(BulletRigidBodyNode('Mesh'))
np.node().add_shape(shape)
np.set_pos(0, 0, -4)
np.set_collide_mask(BitMask32.all_on())
self.world.attach(np.node())
# Soft body world information
info = self.world.get_world_info()
info.set_air_density(1.2)
info.set_water_density(0)
info.set_water_offset(0)
info.set_water_normal(LVector3(0, 0, 0))
## Softbody - From points/indices
#import cube
#points = [LPoint3(x,y,z) * 3 for x,y,z in cube.nodes]
#indices = sum([list(x) for x in cube.elements], [])
#node = BulletSoftBodyNode.make_tet_mesh(info, points, indices, True)
#node.set_volume_mass(300);
#node.get_shape(0).set_margin(0.01)
#node.get_material(0).set_linear_stiffness(0.8)
#node.get_cfg().set_positions_solver_iterations(1)
#node.get_cfg().clear_all_collision_flags()
#node.get_cfg().set_collision_flag(
#BulletSoftBodyConfig.CF_cluster_soft_soft, True)
#node.get_cfg().set_collision_flag(
#BulletSoftBodyConfig.CF_cluster_rigid_soft, True)
#node.generate_clusters(16)
#softNP = self.worldNP.attach_new_node(node)
#softNP.set_pos(0, 0, 8)
#softNP.set_hpr(0, 0, 45)
#self.world.attach(node)
# Softbody - From tetgen data
ele = open('models/cube/cube.1.ele', 'r').read()
face = open('models/cube/cube.1.face', 'r').read()
node = open('models/cube/cube.1.node', 'r').read()
node = BulletSoftBodyNode.make_tet_mesh(info, ele, face, node)
node.set_name('Tetra')
node.set_volume_mass(300)
node.get_shape(0).set_margin(0.01)
node.get_material(0).set_linear_stiffness(0.1)
node.get_cfg().set_positions_solver_iterations(1)
node.get_cfg().clear_all_collision_flags()
node.get_cfg().set_collision_flag(
BulletSoftBodyConfig.CF_cluster_soft_soft, True)
node.get_cfg().setCollisionFlag(
BulletSoftBodyConfig.CF_cluster_rigid_soft, True)
node.generate_clusters(6)
softNP = self.worldNP.attach_new_node(node)
softNP.set_pos(0, 0, 8)
softNP.set_hpr(45, 0, 0)
self.world.attach(node)
# Option 1:
visNP = loader.load_model('models/cube/cube.egg')
visNP.reparent_to(softNP)
geom = (visNP.findAllMatches('**/+GeomNode').getPath(
0).node().modifyGeom(0))
node.link_geom(geom)
def addTriMeshSB(self,vertices, faces,normals = None,ghost=False,**kw):
#step 1) create GeomVertexData and add vertex information
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(0.0)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
format=GeomVertexFormat.getV3n3() #getV3()#http://www.panda3d.org/manual/index.php/Pre-defined_vertex_formats
# vdata = GeomVertexData('name', format, Geom.UHStatic)
vdata=GeomVertexData("Mesh", format, Geom.UHStatic)
vertexWriter=GeomVertexWriter(vdata, "vertex")
[vertexWriter.addData3f(v[0],v[1],v[2]) for v in vertices]
if normals is not None :
normalWriter = GeomVertexWriter(vdata, 'normal')
[normalWriter.addData3f(n[0],n[1],n[2]) for n in normals]
else :
print "we need normals to bind geom to SoftBody"
return None
#step 2) make primitives and assign vertices to them
tris=GeomTriangles(Geom.UHStatic)
[self.setGeomFaces(tris,face) for face in faces]
#step 3) make a Geom object to hold the primitives
geom=Geom(vdata)
geom.addPrimitive(tris)
vdata = geom.getVertexData()
# print (vdata,vdata.hasColumn(InternalName.getVertex()))
geomNode = GeomNode('')
geomNode.addGeom(geom)
#step 4) create the bullet softbody and node
bodyNode = BulletSoftBodyNode.makeTriMesh(info, geom)
# bodyNode.linkGeom(geomNode.modifyGeom(0))
bodyNode.setName('Tri')
bodyNode.linkGeom(geom)
bodyNode.generateBendingConstraints(1)#???
#bodyNode.getMaterial(0).setLinearStiffness(0.8)
bodyNode.getCfg().setPositionsSolverIterations(4)
# bodyNode.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFVertexFaceSoftSoft, True)
bodyNode.getCfg().setDynamicFrictionCoefficient(1)
bodyNode.getCfg().setDampingCoefficient(0.001)
bodyNode.getCfg().setPressureCoefficient(15000*10.0)
bodyNode.getCfg().setPoseMatchingCoefficient(0.2)
bodyNode.setPose(True, True)
# bodyNode.randomizeConstraints()
bodyNode.setTotalMass(50000*10, True)
bodyNP = self.worldNP.attachNewNode(bodyNode)
# fmt = GeomVertexFormat.getV3n3t2()
# geom = BulletHelper.makeGeomFromFaces(bodyNode, fmt,True)
# bodyNode.linkGeom(geomNode.modifyGeom(0))
# geomNode = GeomNode('')
# geomNode.addGeom(geom)
# world.attachSoftBody(bodyNode)
# inodenp.setPos(0, 0, 0.1)
# self.setRB(bodyNP,**kw)#set po
# inodenp.setCollideMask(BitMask32.allOn())
self.world.attachSoftBody(bodyNode)
geomNP = bodyNP.attachNewNode(geomNode)
return bodyNP,geomNP
def setup(self):
self.worldNP = render.attach_new_node('World')
# World
self.debugNP = self.worldNP.attach_new_node(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.set_gravity(LVector3(0, 0, -9.81))
self.world.set_debug_node(self.debugNP.node())
# Ground
p0 = LPoint3(-20, -20, 0)
p1 = LPoint3(-20, 20, 0)
p2 = LPoint3(20, -20, 0)
p3 = LPoint3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.add_triangle(p0, p1, p2)
mesh.add_triangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attach_new_node(BulletRigidBodyNode('Mesh'))
np.node().add_shape(shape)
np.set_pos(0, 0, -2)
np.set_collide_mask(BitMask32.all_on())
self.world.attach(np.node())
# Soft body world information
info = self.world.get_world_info()
info.set_air_density(1.2)
info.set_water_density(0)
info.set_water_offset(0)
info.set_water_normal(LVector3(0, 0, 0))
# Softbody
for i in range(50):
p00 = LPoint3(-2, -2, 0)
p10 = LPoint3(2, -2, 0)
p01 = LPoint3(-2, 2, 0)
p11 = LPoint3(2, 2, 0)
node = BulletSoftBodyNode.make_patch(info, p00, p10, p01, p11, 6,
6, 0, True)
node.generate_bending_constraints(2)
node.get_cfg().set_lift_coefficient(0.004)
node.get_cfg().set_dynamic_friction_coefficient(0.0003)
node.get_cfg().set_aero_model(
BulletSoftBodyConfig.AM_vertex_two_sided)
node.set_total_mass(0.1)
node.add_force(LVector3(0, 2, 0), 0)
np = self.worldNP.attach_new_node(node)
np.set_pos(self.LVector3_rand() * 10 + LVector3(0, 0, 20))
np.set_hpr(self.LVector3_rand() * 16)
self.world.attach(node)
fmt = GeomVertexFormat.get_v3n3t2()
geom = BulletHelper.make_geom_from_faces(node, fmt, True)
node.link_geom(geom)
nodeV = GeomNode('')
nodeV.add_geom(geom)
npV = np.attach_new_node(nodeV)
tex = loader.load_texture('models/panda.jpg')
npV.set_texture(tex)
BulletHelper.make_texcoords_for_patch(geom, 6, 6)
def setup(self):
self.worldNP = render.attach_new_node('World')
# World
self.debugNP = self.worldNP.attach_new_node(BulletDebugNode('Debug'))
self.debugNP.show()
#self.debugNP.show_tight_bounds()
#self.debugNP.show_bounds()
self.world = BulletWorld()
self.world.set_gravity(LVector3(0, 0, -9.81))
self.world.set_debug_node(self.debugNP.node())
# Ground
p0 = LPoint3(-20, -20, 0)
p1 = LPoint3(-20, 20, 0)
p2 = LPoint3(20, -20, 0)
p3 = LPoint3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.add_triangle(p0, p1, p2)
mesh.add_triangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attach_new_node(BulletRigidBodyNode('Mesh'))
np.node().add_shape(shape)
np.set_pos(0, 0, -2)
np.set_collide_mask(BitMask32.all_on())
self.world.attach(np.node())
# Stair
origin = LPoint3(0, 0, 0)
size = LVector3(2, 10, 1)
shape = BulletBoxShape(size * 0.5)
for i in range(10):
pos = origin + size * i
pos.setY(0)
np = self.worldNP.attach_new_node(
BulletRigidBodyNode('Stair{}'.format(i)))
np.node().add_shape(shape)
np.set_pos(pos)
np.set_collide_mask(BitMask32.all_on())
npV = loader.load_model('models/box.egg')
npV.reparent_to(np)
npV.set_scale(size)
self.world.attach(np.node())
# Soft body world information
info = self.world.get_world_info()
info.set_air_density(1.2)
info.set_water_density(0)
info.set_water_offset(0)
info.set_water_normal(LVector3(0, 0, 0))
# Softbody
center = LPoint3(0, 0, 0)
radius = LVector3(1, 1, 1) * 1.5
node = BulletSoftBodyNode.make_ellipsoid(info, center, radius, 128)
node.set_name('Ellipsoid')
node.get_material(0).set_linear_stiffness(0.1)
node.get_cfg().set_dynamic_friction_coefficient(1)
node.get_cfg().set_damping_coefficient(0.001)
node.get_cfg().set_pressure_coefficient(1500)
node.set_total_mass(30, True)
node.set_pose(True, False)
np = self.worldNP.attach_new_node(node)
np.set_pos(15, 0, 12)
#np.setH(90.0)
#np.show_bounds()
#np.show_tight_bounds()
self.world.attach(np.node())
geom = BulletHelper.make_geom_from_faces(node)
node.link_geom(geom)
nodeV = GeomNode('EllipsoidVisual')
nodeV.add_geom(geom)
npV = np.attach_new_node(nodeV)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Box
shape = BulletBoxShape(Vec3(0.5, 0.5, 0.5) * 2.0)
boxNP = self.worldNP.attachNewNode(BulletRigidBodyNode('Box'))
boxNP.node().setMass(150.0)
boxNP.node().addShape(shape)
boxNP.setPos(0, 0, 2)
boxNP.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(boxNP.node())
visualNP = loader.loadModel('models/box.egg')
visualNP.clearModelNodes()
visualNP.setScale(2.0)
visualNP.reparentTo(boxNP)
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
nx = 31
ny = 31
p00 = Point3(-8, -8, 0)
p10 = Point3( 8, -8, 0)
p01 = Point3(-8, 8, 0)
p11 = Point3( 8, 8, 0)
bodyNode = BulletSoftBodyNode.makePatch(info, p00, p10, p01, p11, nx, ny, 1+2+4+8, True)
material = bodyNode.appendMaterial()
material.setLinearStiffness(0.4)
bodyNode.generateBendingConstraints(2, material);
bodyNode.setTotalMass(50.0)
bodyNode.getShape(0).setMargin(0.5)
bodyNP = self.worldNP.attachNewNode(bodyNode)
self.world.attachSoftBody(bodyNode)
# Rendering with Geom:
fmt = GeomVertexFormat.getV3n3t2()
geom = BulletHelper.makeGeomFromFaces(bodyNode, fmt, True)
bodyNode.linkGeom(geom)
visNode = GeomNode('')
visNode.addGeom(geom)
visNP = bodyNP.attachNewNode(visNode)
# Now we want to have a texture and texture coordinates.
# The geom's format has already a column for texcoords, so we just need
# to write texcoords using a GeomVertexRewriter.
tex = loader.loadTexture('models/panda.jpg')
visNP.setTexture(tex)
BulletHelper.makeTexcoordsForPatch(geom, nx, ny)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
#self.debugNP.showTightBounds()
#self.debugNP.showBounds()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -2)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Stair
origin = Point3(0, 0, 0)
size = Vec3(2, 10, 1)
shape = BulletBoxShape(size * 0.5)
for i in range(10):
pos = origin + size * i
pos.setY(0)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Stair%i' % i))
np.node().addShape(shape)
np.setPos(pos)
np.setCollideMask(BitMask32.allOn())
npV = loader.loadModel('models/box.egg')
npV.reparentTo(np)
npV.setScale(size)
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
center = Point3(0, 0, 0)
radius = Vec3(1, 1, 1) * 1.5
node = BulletSoftBodyNode.makeEllipsoid(info, center, radius, 128)
node.setName('Ellipsoid')
node.getMaterial(0).setLinearStiffness(0.1)
node.getCfg().setDynamicFrictionCoefficient(1)
node.getCfg().setDampingCoefficient(0.001)
node.getCfg().setPressureCoefficient(1500)
node.setTotalMass(30, True)
node.setPose(True, False)
np = self.worldNP.attachNewNode(node)
np.setPos(15, 0, 12)
#np.setH(90.0)
#np.showBounds()
#np.showTightBounds()
self.world.attachSoftBody(np.node())
geom = BulletHelper.makeGeomFromFaces(node)
node.linkGeom(geom)
nodeV = GeomNode('EllipsoidVisual')
nodeV.addGeom(geom)
npV = np.attachNewNode(nodeV)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -4)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody - From points/indices
#import cube
#points = [Point3(x,y,z) * 3 for x,y,z in cube.nodes]
#indices = sum([list(x) for x in cube.elements], [])
#node = BulletSoftBodyNode.makeTetMesh(info, points, indices, True)
#node.setVolumeMass(300);
#node.getShape(0).setMargin(0.01)
#node.getMaterial(0).setLinearStiffness(0.8)
#node.getCfg().setPositionsSolverIterations(1)
#node.getCfg().clearAllCollisionFlags()
#node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterSoftSoft, True)
#node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterRigidSoft, True)
#node.generateClusters(16)
#softNP = self.worldNP.attachNewNode(node)
#softNP.setPos(0, 0, 8)
#softNP.setHpr(0, 0, 45)
#self.world.attachSoftBody(node)
# Softbody - From tetgen data
ele = file('models/cube/cube.1.ele', 'r').read()
face = file('models/cube/cube.1.face', 'r').read()
node = file('models/cube/cube.1.node', 'r').read()
node = BulletSoftBodyNode.makeTetMesh(info, ele, face, node)
node.setName('Tetra')
node.setVolumeMass(300)
node.getShape(0).setMargin(0.01)
node.getMaterial(0).setLinearStiffness(0.1)
node.getCfg().setPositionsSolverIterations(1)
node.getCfg().clearAllCollisionFlags()
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterSoftSoft, True)
node.getCfg().setCollisionFlag(BulletSoftBodyConfig.CFClusterRigidSoft, True)
node.generateClusters(6)
softNP = self.worldNP.attachNewNode(node)
softNP.setPos(0, 0, 8)
softNP.setHpr(45, 0, 0)
self.world.attachSoftBody(node)
# Option 1:
visNP = loader.loadModel('models/cube/cube.egg')
visNP.reparentTo(softNP)
geom = visNP \
.findAllMatches('**/+GeomNode').getPath(0).node() \
.modifyGeom(0)
node.linkGeom(geom)
def setup(self):
self.worldNP = render.attachNewNode('World')
# World
self.debugNP = self.worldNP.attachNewNode(BulletDebugNode('Debug'))
self.debugNP.show()
self.world = BulletWorld()
self.world.setGravity(Vec3(0, 0, -9.81))
self.world.setDebugNode(self.debugNP.node())
# Ground
p0 = Point3(-20, -20, 0)
p1 = Point3(-20, 20, 0)
p2 = Point3(20, -20, 0)
p3 = Point3(20, 20, 0)
mesh = BulletTriangleMesh()
mesh.addTriangle(p0, p1, p2)
mesh.addTriangle(p1, p2, p3)
shape = BulletTriangleMeshShape(mesh, dynamic=False)
np = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
np.node().addShape(shape)
np.setPos(0, 0, -2)
np.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(np.node())
# Soft body world information
info = self.world.getWorldInfo()
info.setAirDensity(1.2)
info.setWaterDensity(0)
info.setWaterOffset(0)
info.setWaterNormal(Vec3(0, 0, 0))
# Softbody
for i in range(50):
p00 = Point3(-2, -2, 0)
p10 = Point3(2, -2, 0)
p01 = Point3(-2, 2, 0)
p11 = Point3(2, 2, 0)
node = BulletSoftBodyNode.makePatch(info, p00, p10, p01, p11, 6, 6,
0, True)
node.generateBendingConstraints(2)
node.getCfg().setLiftCoefficient(0.004)
node.getCfg().setDynamicFrictionCoefficient(0.0003)
node.getCfg().setAeroModel(BulletSoftBodyConfig.AMVertexTwoSided)
node.setTotalMass(0.1)
node.addForce(Vec3(0, 2, 0), 0)
np = self.worldNP.attachNewNode(node)
np.setPos(self.Vec3Rand() * 10 + Vec3(0, 0, 20))
np.setHpr(self.Vec3Rand() * 16)
self.world.attachSoftBody(node)
fmt = GeomVertexFormat.getV3n3t2()
geom = BulletHelper.makeGeomFromFaces(node, fmt, True)
node.linkGeom(geom)
nodeV = GeomNode('')
nodeV.addGeom(geom)
npV = np.attachNewNode(nodeV)