def regesterGeomRequirements(self, LOD, collection):
n = NodePath('tmp')
if self.barkTexture is not None:
n.setTexture(self.barkTexture)
n.setShaderInput('diffTex', self.barkTexture)
format = GeomVertexFormat.getV3n3t2()
else:
format = GeomVertexFormat.getV3n3()
n.setColor(.4, .3, .3, 1)
#n.setShader(customLoader.makeShader(n))
trunkRequirements = meshManager.GeomRequirements(
geomVertexFormat=format, renderState=n.getState())
n = NodePath('tmp')
if self.leafTexture is not None:
#n.setTag("alpha","")
n.setShaderInput("alpha", 0, 0, 0) # marker we need cutout alpha
n.setTexture(self.leafTexture)
n.setShaderInput('diffTex', self.leafTexture)
format = GeomVertexFormat.getV3n3t2()
else:
format = GeomVertexFormat.getV3n3c4()
#n.setShader(customLoader.makeShader(n,debugCodePrefix="tree",debugGraphPrefix="tree"))
leafRequirements = meshManager.GeomRequirements(
geomVertexFormat=format, renderState=n.getState())
self.trunkDataIndex[LOD] = collection.add(trunkRequirements)
self.leafDataIndex[LOD] = collection.add(leafRequirements)
def __init__(self):
array_format = GeomVertexArrayFormat()
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Vertex.value), 3,
Geom.NT_float32, Geom.C_point)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Color.value), 4, Geom.NT_uint8,
Geom.C_color)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Normal.value), 3,
Geom.NT_float32, Geom.C_normal)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Tangent.value), 3,
Geom.NT_float32, Geom.C_vector)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Binormal.value), 3,
Geom.NT_float32, Geom.C_vector)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.UVMap.value), 2,
Geom.NT_float32, Geom.C_texcoord)
self.vertex_format = GeomVertexFormat()
self.vertex_format.addArray(array_format)
self.vertex_format = GeomVertexFormat.registerFormat(
self.vertex_format)
def makeVertexFormat(color=True,
normal=False,
texcoord=False,
tan_binorm=False):
myArray = GeomVertexArrayFormat()
myArray.addColumn(InternalName.make('vertex'), 3, Geom.NTFloat32,
Geom.CPoint)
if color:
myArray.addColumn(InternalName.make('color'), 4, Geom.NTFloat32,
Geom.CColor)
if normal:
myArray.addColumn(InternalName.make('normal'), 3, Geom.NTFloat32,
Geom.CVector)
if texcoord:
myArray.addColumn(InternalName.make('texcoord'), 2, Geom.NTFloat32,
Geom.CTexcoord)
if tan_binorm:
myArray.addColumn(InternalName.make('tangent'), 3, Geom.NTFloat32,
Geom.CVector)
myArray.addColumn(InternalName.make('binormal'), 3, Geom.NTFloat32,
Geom.CVector)
myFormat = GeomVertexFormat()
myFormat.addArray(myArray)
myFormat = GeomVertexFormat.registerFormat(myFormat)
return myFormat
def regesterGeomRequirements(self, LOD, collection):
n = NodePath("tmp")
if self.barkTexture is not None:
n.setTexture(self.barkTexture)
n.setShaderInput("diffTex", self.barkTexture)
format = GeomVertexFormat.getV3n3t2()
else:
format = GeomVertexFormat.getV3n3()
n.setColor(0.4, 0.3, 0.3, 1)
# n.setShader(customLoader.makeShader(n))
trunkRequirements = meshManager.GeomRequirements(geomVertexFormat=format, renderState=n.getState())
n = NodePath("tmp")
if self.leafTexture is not None:
# n.setTag("alpha","")
n.setShaderInput("alpha", 0, 0, 0) # marker we need cutout alpha
n.setTexture(self.leafTexture)
n.setShaderInput("diffTex", self.leafTexture)
format = GeomVertexFormat.getV3n3t2()
else:
format = GeomVertexFormat.getV3n3c4()
# n.setShader(customLoader.makeShader(n,debugCodePrefix="tree",debugGraphPrefix="tree"))
leafRequirements = meshManager.GeomRequirements(geomVertexFormat=format, renderState=n.getState())
self.trunkDataIndex[LOD] = collection.add(trunkRequirements)
self.leafDataIndex[LOD] = collection.add(leafRequirements)
def geom_node():
array = GeomVertexArrayFormat()
array.add_column("vertex", 3, Geom.NT_float32, Geom.C_point)
array.add_column("normal", 3, Geom.NT_float32, Geom.C_normal)
array.add_column("color", 3, Geom.NT_float32, Geom.C_color)
array.add_column("texcoord", 3, Geom.NT_float32, Geom.C_texcoord)
format = GeomVertexFormat()
format.add_array(array)
format = GeomVertexFormat.register_format(format)
vdata = GeomVertexData("test", format, Geom.UH_static)
vdata.set_num_rows(4)
vertex = GeomVertexWriter(vdata, 'vertex')
normal = GeomVertexWriter(vdata, 'normal')
color = GeomVertexWriter(vdata, 'color')
texcoord = GeomVertexWriter(vdata, 'texcoord')
vertex.add_data3f(1, 0, 0)
normal.add_data3f(0, 0, 1)
color.add_data4f(0, 0, 1, 1)
texcoord.add_data2f(1, 0)
vertex.add_data3f(1, 1, 0)
normal.add_data3f(0, 1, 1)
color.add_data4f(1, 0, 1, 1)
texcoord.add_data2f(1, 1)
geom = Geom(vdata)
node = GeomNode('gnode')
node.add_geom(geom)
return node
def makeGeom(self, points, colors, sizes):
#format = GeomVertexFormat.getV3c4()
array = GeomVertexArrayFormat()
array.addColumn(InternalName.get_vertex(), 3, Geom.NTFloat32, Geom.CPoint)
array.addColumn(InternalName.get_color(), 4, Geom.NTFloat32, Geom.CColor)
array.addColumn(InternalName.get_size(), 1, Geom.NTFloat32, Geom.COther)
format = GeomVertexFormat()
format.addArray(array)
format = GeomVertexFormat.registerFormat(format)
vdata = GeomVertexData('vdata', format, Geom.UH_static)
vdata.unclean_set_num_rows(len(points))
self.vwriter = GeomVertexWriter(vdata, InternalName.get_vertex())
self.colorwriter = GeomVertexWriter(vdata, InternalName.get_color())
self.sizewriter = GeomVertexWriter(vdata, InternalName.get_size())
geompoints = GeomPoints(Geom.UH_static)
geompoints.reserve_num_vertices(len(points))
index = 0
for (point, color, size) in zip(points, colors, sizes):
self.vwriter.addData3f(*point)
self.colorwriter.addData4f(*color)
self.sizewriter.addData1f(size)
geompoints.addVertex(index)
#geompoints.closePrimitive()
index += 1
geom = Geom(vdata)
geom.addPrimitive(geompoints)
return geom
def __init__(self, base, obj, **kwargs):
super(GalaxyView, self).__init__(base, obj, **kwargs)
array = GeomVertexArrayFormat()
array.addColumn(InternalName.make('vertex'), 3, Geom.NTFloat32,
Geom.CPoint)
array.addColumn(InternalName.make('color'), 4, Geom.NTFloat32,
Geom.CColor)
array.addColumn(InternalName.make('size'), 1, Geom.NTFloat32,
Geom.COther)
gmformat = GeomVertexFormat()
gmformat.addArray(array)
gmformat = GeomVertexFormat.registerFormat(gmformat)
vdata = GeomVertexData('points', gmformat, Geom.UHDynamic)
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
size = GeomVertexWriter(vdata, 'size')
self.node = NodePath('galaxy')
self.node.reparentTo(self.base.render)
self.node.setTransparency(TransparencyAttrib.MAlpha)
lumsort = sorted([star.luminosity for star in self.obj.stars])
#highest_luminosity = lumsort[-1]
median_luminosity = lumsort[len(lumsort) / 2]
for star in self.obj.stars:
vertex.addData3f(star.galpos.x, star.galpos.y, star.galpos.z)
color.addData4f(star.red, star.green, star.blue, 1.0)
#size.addData1f(min(100, max(5, 10-star.magnitude/2)))
sizeval = 10 + log(star.luminosity)
size.addData1f(min(30, max(10, sizeval)))
prim = GeomPoints(Geom.UHStatic)
prim.addConsecutiveVertices(0, len(self.obj.stars))
prim.closePrimitive()
geom = Geom(vdata)
geom.addPrimitive(prim)
node = GeomNode('gnode')
node.addGeom(geom)
galaxy_node = self.node.attachNewNode(node)
galaxy_node.setRenderModeThickness(1)
ts = TextureStage.getDefault() #TextureStage('ts')
#ts.setMode(TextureStage.MGlow)
galaxy_node.setTexGen(ts, TexGenAttrib.MPointSprite)
galaxy_node.setTexture(
ts, self.base.loader.loadTexture('texture/flare.png'))
#galaxy_node.setRenderModePerspective(True)
galaxy_node.setBin("unsorted", 1)
galaxy_node.setDepthWrite(0)
galaxy_node.setTransparency(1)
self.setup_glow_shader()
"""
def empty_geom(prefix,
nb_data,
nb_vertices,
points=False,
normal=True,
texture=True,
color=False,
tanbin=False):
array = GeomVertexArrayFormat()
array.addColumn(InternalName.make('vertex'), 3, Geom.NTFloat32,
Geom.CPoint)
if color:
array.addColumn(InternalName.make('color'), 4, Geom.NTFloat32,
Geom.CColor)
if texture:
array.addColumn(InternalName.make('texcoord'), 2, Geom.NTFloat32,
Geom.CTexcoord)
if normal:
array.addColumn(InternalName.make('normal'), 3, Geom.NTFloat32,
Geom.CVector)
if tanbin:
array.addColumn(InternalName.make('binormal'), 3, Geom.NTFloat32,
Geom.CVector)
array.addColumn(InternalName.make('tangent'), 3, Geom.NTFloat32,
Geom.CVector)
format = GeomVertexFormat()
format.addArray(array)
format = GeomVertexFormat.registerFormat(format)
gvd = GeomVertexData('gvd', format, Geom.UHStatic)
if nb_data != 0:
gvd.unclean_set_num_rows(nb_data)
geom = Geom(gvd)
gvw = GeomVertexWriter(gvd, 'vertex')
if color:
gcw = GeomVertexWriter(gvd, 'color')
else:
gcw = None
if texture:
gtw = GeomVertexWriter(gvd, 'texcoord')
else:
gtw = None
if normal:
gnw = GeomVertexWriter(gvd, 'normal')
else:
gnw = None
if tanbin:
gtanw = GeomVertexWriter(gvd, 'tangent')
gbiw = GeomVertexWriter(gvd, 'binormal')
else:
gtanw = None
gbiw = None
if points:
prim = GeomPoints(Geom.UHStatic)
else:
prim = GeomTriangles(Geom.UHStatic)
if nb_vertices != 0:
prim.reserve_num_vertices(nb_vertices)
return (gvw, gcw, gtw, gnw, gtanw, gbiw, prim, geom)
def create_model(self):
# Set up the vertex arrays
vformatArray = GeomVertexArrayFormat()
# Panda3D implicitly generates a bounding volume from a
# column named "vertex", so you either
# * have a column of that name, or
# * add a bounding volume yourself.
vformatArray.addColumn(InternalName.make("vertex"), 3, Geom.NTFloat32,
Geom.CPoint)
vformatArray.addColumn(InternalName.make("color"), 4, Geom.NTFloat32,
Geom.CColor)
vformat = GeomVertexFormat()
vformat.addArray(vformatArray)
vformat = GeomVertexFormat.registerFormat(vformat)
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
geom = Geom(vdata)
# Vertex data
vertex.addData3f(1.5, 0, -1)
color.addData4f(1, 0, 0, 1)
vertex.addData3f(-1.5, 0, -1)
color.addData4f(0, 1, 0, 1)
vertex.addData3f(0, 0, 1)
color.addData4f(0, 0, 1, 1)
# Primitive
tri = GeomPatches(3, Geom.UHStatic)
tri.add_vertex(2)
tri.add_vertex(1)
tri.add_vertex(0)
tri.close_primitive()
geom.addPrimitive(tri)
# Create the actual node
node = GeomNode('geom_node')
node.addGeom(geom)
np = NodePath(node)
# Shader, initial shader vars, number of instances
np.set_shader(
Shader.load(Shader.SL_GLSL,
vertex="shader.vert",
tess_control="shader.tesc",
tess_evaluation="shader.tese",
geometry="shader.geom",
fragment="shader.frag"))
np.set_shader_input("time", 0.0)
np.set_shader_input("tess_level", 32.0)
np.set_instance_count(num_instances)
np.set_shader_input("numInstances", num_instances)
return np
def __init__(self, __occupying_unit = None, __occupiable = True,
x = 0, z = 0, r = 5, tag = 0):
self.__occupying_unit = __occupying_unit
self.__occupiable = __occupiable
self.__r = r
self.__x = x
self.__z = z
self.__tag = tag
#Procedurally creating a hex!
geometry_array = GeomVertexArrayFormat()
geometry_array.addColumn(InternalName.make('vertex'), 3, Geom.NTFloat32, Geom.CPoint)
geometry_array.addColumn(InternalName.make('normal'), 3, Geom.NTFloat32, Geom.CPoint)
format = GeomVertexFormat()
format.addArray(geometry_array)
format = GeomVertexFormat.registerFormat(format)
self.__vdata = GeomVertexData('Hex', format, Geom.UHStatic)
self.__vertex = GeomVertexWriter(self.__vdata, 'vertex')
self.__normal = GeomVertexWriter(self.__vdata, 'normal')
#Vertex 1
self.__vertex.addData3f(self.__x, self.__z+self.__r, 0)
self.__normal.addData3f(1, 0, 0)
#Vertex 2
self.__vertex.addData3f(self.__x+self.__r*sin(pi/3), self.__z+self.__r*cos(pi/3), 0)
self.__normal.addData3f(1, 0, 0)
#Vertex 3
self.__vertex.addData3f(self.__x+self.__r*sin(pi/3), self.__z-self.__r*cos(pi/3), 0)
self.__normal.addData3f(1, 0, 0)
#Vertex 4
self.__vertex.addData3f(self.__x, self.__z-self.__r, 0)
self.__normal.addData3f(1, 0, 0)
#Vertex 5
self.__vertex.addData3f(self.__x-self.__r*sin(pi/3), self.__z-self.__r*cos(pi/3), 0)
self.__normal.addData3f(1, 0, 0)
#Vertex 6
self.__vertex.addData3f(self.__x-self.__r*sin(pi/3), self.__z+self.__r*cos(pi/3), 0)
self.__normal.addData3f(1, 0, 0)
self.__hex_primitive = GeomTrifans(Geom.UHStatic)
self.__hex_primitive.addVertices(5, 4)
self.__hex_primitive.addVertices(3, 2)
self.__hex_primitive.addVertices(1, 0)
self.__hex_primitive.closePrimitive()
self.__hex_geometry = Geom(self.__vdata)
self.__hex_geometry.addPrimitive(self.__hex_primitive)
self.__hex_node = GeomNode('HexNode')
self.__hex_node.addGeom(self.__hex_geometry)
nodePath = render.attachNewNode(self.__hex_node)
nodePath.setTag( "hex", str(tag) )
nodePath.node().setIntoCollideMask(BitMask32.bit(1))
nodePath.hide()
def create_model(self):
# Set up the vertex arrays
vformatArray = GeomVertexArrayFormat()
# Panda3D implicitly generates a bounding volume from a
# column named "vertex", so you either
# * have a column of that name, or
# * add a bounding volume yourself.
vformatArray.addColumn(InternalName.make("vertex"), 3, Geom.NTFloat32, Geom.CPoint)
vformatArray.addColumn(InternalName.make("color"), 4, Geom.NTFloat32, Geom.CColor)
vformat = GeomVertexFormat()
vformat.addArray(vformatArray)
vformat = GeomVertexFormat.registerFormat(vformat)
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
geom = Geom(vdata)
# Vertex data
vertex.addData3f(1.5, 0, -1)
color.addData4f(1, 0, 0, 1)
vertex.addData3f(-1.5, 0, -1)
color.addData4f(0, 1, 0, 1)
vertex.addData3f(0, 0, 1)
color.addData4f(0, 0, 1, 1)
# Primitive
tri = GeomPatches(3, Geom.UHStatic)
tri.add_vertex(2)
tri.add_vertex(1)
tri.add_vertex(0)
tri.close_primitive()
geom.addPrimitive(tri)
# Create the actual node
node = GeomNode('geom_node')
node.addGeom(geom)
np = NodePath(node)
# Shader, initial shader vars, number of instances
np.set_shader(Shader.load(Shader.SL_GLSL,
vertex = "shader.vert",
tess_control = "shader.tesc",
tess_evaluation = "shader.tese",
geometry = "shader.geom",
fragment = "shader.frag"))
np.set_shader_input("time", 0.0)
np.set_shader_input("tess_level", 32.0)
np.set_instance_count(num_instances)
np.set_shader_input("numInstances", num_instances)
return np
class MyGeomVertexArrayFormat:
"""
Class which is supposed to extend the existing vertex array format of Panda3d
Panda supports : vertex, color, normal and uv-coordinates natively.
However, for normal (bump)-mapping, tangent and binormal vector for each vertex are required.
Thus:
vertex: Vertex in 3D space
color: Color in 4D color space (rgb with alpha channel)
normal: normal vector of vertex, e.g. required for smooth lightning
tangent: tangent vector to the normal vector of the vertex. Required for normal(bump) mapping
bi-normal: sometimes referred to as bi-tangent. Cross product of normal and tangent vector n_v x t_v
texcoord: UV coordinates -> mapping of each vertex to a 2D [0,1]x[0,1] space
"""
# noinspection PyArgumentList,PyCallByClass
def __init__(self):
array_format = GeomVertexArrayFormat()
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Vertex.value), 3,
Geom.NT_float32, Geom.C_point)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Color.value), 4, Geom.NT_uint8,
Geom.C_color)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Normal.value), 3,
Geom.NT_float32, Geom.C_normal)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Tangent.value), 3,
Geom.NT_float32, Geom.C_vector)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.Binormal.value), 3,
Geom.NT_float32, Geom.C_vector)
array_format.addColumn(
InternalName.make(ArrayFormatColunm.UVMap.value), 2,
Geom.NT_float32, Geom.C_texcoord)
self.vertex_format = GeomVertexFormat()
self.vertex_format.addArray(array_format)
self.vertex_format = GeomVertexFormat.registerFormat(
self.vertex_format)
@staticmethod
def get_column_name(column_name: ArrayFormatColunm) -> str:
return column_name.value
@staticmethod
def get_writer(geom: Geom,
column_name: ArrayFormatColunm) -> GeomVertexReader:
vertex_data = geom.modifyVertexData()
return GeomVertexReader(vertex_data, column_name.value)
def _create_geom(self):
color = ConfigVariableColor('grid-color', DEFAULT_GRID_COLOR)
radius = floor(self.size / (2 * self.spacing))
diameter = (2 * radius + 1)
start = -radius * self.spacing
vertex_format = GeomVertexFormat.get_v3c4()
vertex_data = GeomVertexData('grid', vertex_format, Geom.UH_static)
vertex_data.set_num_rows(diameter * 4)
vertex_writer = GeomVertexWriter(vertex_data, 'vertex')
color_writer = GeomVertexWriter(vertex_data, 'color')
for i, j in product(range(diameter), repeat=2):
vertex_writer.add_data3f(start + i * self.spacing,
start + j * self.spacing, 0.0)
alpha = GRID_ALPHA - GRID_ALPHA * (
Vector(i - radius, j - radius).norm() / radius)
color_writer.add_data4f(color[0], color[1], color[2], alpha)
primitive = GeomLinestrips(Geom.UH_static)
for vertex in vertex_indexes(diameter):
primitive.add_vertex(vertex)
primitive.close_primitive()
self.geom = Geom(vertex_data)
self.geom.add_primitive(primitive)
def buildGeom(self, meshData):
prims = meshData["prims"]
vertices = meshData["vertices"]
normals = meshData["normals"]
texcoords = meshData["texcoords"]
vdata = GeomVertexData('mesh', GeomVertexFormat.getV3n3t2(), Geom.UHStatic)
vwriter = GeomVertexWriter(vdata, 'vertex')
nvwriter = GeomVertexWriter(vdata, 'normal')
tvwriter = GeomVertexWriter(vdata, 'texcoord')
for i in range(len(vertices)):
v = vertices[i]
n = normals[i]
t = texcoords[i]
vwriter.addData3f(v)
nvwriter.addData3f(n)
tvwriter.addData2f(t)
prim = GeomTriangles(Geom.UHStatic)
for i in range(len(prims)):
A, B, C = prims[i]
prim.addVertices(A, B, C)
prim.closePrimitive()
geom = Geom(vdata)
geom.addPrimitive(prim)
geomNode = GeomNode('trig')
geomNode.addGeom(geom)
geomNode.unify(1, True)
return geomNode
def __init__(self, diameter, density):
self.fmt = GeomVertexFormat.getV3c4()
self.diameter = diameter
r = diameter / 2
# Sample random points in a 2d plane
points_2d = []
for i in range(int(density * pi * r**2)):
x, y = random_in_circle()
points_2d.append((x * r, y * r))
# Compute triangulations
triangulation = DelaunayTri(points_2d)
# Save points in 3d space
self.points = []
for x, y in triangulation.points:
p = Vec3(x, y, elevation(x, y))
self.points.append(p)
# Save triangles
self.vertices = triangulation.vertices
# Save a graph with the triangulation
self.nodes = [set() for i in range(len(self.points))]
self.edges = []
for a, b, c in triangulation.vertices:
self.nodes[a] |= {b, c}
self.nodes[b] |= {a, c}
self.nodes[c] |= {a, b}
self.edges.append((a, b))
self.edges.append((b, c))
self.edges.append((c, a))
def __build_Writers(self):
# Build Vdata.
array = GeomVertexArrayFormat()
for field_name, field_spec_name in list(self.field_types.items()):
field_specs = self._data_types[field_spec_name][:-1]
array.addColumn(InternalName.make(field_name), *field_specs)
vformat = GeomVertexFormat()
vformat.addArray(array)
vformat = GeomVertexFormat.registerFormat(vformat)
vdata = GeomVertexData("data", vformat, Geom.UHStatic)
# Build GeomVertexWriters.
writers = {}
for field_name in list(self.field_types.keys()):
writers[field_name] = GeomVertexWriter(vdata, field_name)
return vdata, writers
def makePoints(n=1000):
""" make a cloud of points that are a single node VS branching and making subnodes to control display """
#points = np.random.uniform(-10,10,(n,4))
points = np.random.randn(n,3)
colors = np.random.rand(n,4)
fmt = GeomVertexFormat.getV3c4() #3 component vertex, w/ 4 comp color
vertexData = GeomVertexData('points', fmt, Geom.UHStatic)
verts = GeomVertexWriter(vertexData, 'vertex')
color = GeomVertexWriter(vertexData, 'color')
for point,clr4 in zip(points,colors):
#for point in points:
verts.addData3f(*point)
#color.addData4f(*point)
color.addData4f(*clr4)
#color.addData4f(.1,.1,.1,1)
#pointCloud = GeomLinestrips(Geom.UHStatic) #this is f*****g cool!
pointCloud = GeomTristrips(Geom.UHStatic) #this is f*****g cool!
#pointCloud = GeomPoints(Geom.UHStatic)
#pointCloud.addVerticies(*range(n))
pointCloud.addConsecutiveVertices(0,n) #warning may error since n-1?
pointCloud.closePrimitive()
cloud = Geom(vertexData)
cloud.addPrimitive(pointCloud)
return cloud
def __build_Star_Sphere(self, bg_stars):
from panda3d.core import GeomVertexWriter, GeomVertexFormat, GeomVertexData
from panda3d.core import Geom, GeomNode, GeomPoints, AmbientLight
self.star_sphere_np.removeNode()
# Fill GeomVertexData.
vformat = GeomVertexFormat.getV3c4()
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertices = GeomVertexWriter(vdata, "vertex")
colours = GeomVertexWriter(vdata, "color")
for coords in bg_stars:
x, y, z = coords
vertices.addData3f(x, y, z)
colours.addData4f(1, 1, 1, 1)
# Render bg stars.
bg_stars = GeomPoints(Geom.UHStatic)
bg_stars.addNextVertices(_env.STAR_COUNT)
bg_stars_geom = Geom(vdata)
bg_stars_geom.addPrimitive(bg_stars)
star_sphere = GeomNode("star_sphere")
star_sphere.addGeom(bg_stars_geom)
star_sphere_np = NodePath(star_sphere)
star_sphere_np.reparentTo(self.NP)
return star_sphere_np
def __build_ocean_mesh(self):
vdata = GeomVertexData('data', GeomVertexFormat.getV3n3c4t2(),
Geom.UHStatic)
vertex = GeomVertexWriter(vdata, 'vertex')
normal = GeomVertexWriter(vdata, 'normal')
texcoord = GeomVertexWriter(vdata, 'texcoord')
color = GeomVertexWriter(vdata, 'color')
axes = [Vec3.unitX(), Vec3.unitY(), Vec3.unitZ()]
face = 0
for x in range(3):
for s in [-1, 1]:
for i in range(self.__n + 1):
for j in range(self.__n + 1):
a = (i * 1.0 / self.__n) * (pi / 2) - (pi / 4)
b = (j * 1.0 / self.__n) * (pi / 2) - (pi / 4)
xAxis = axes[(x + 3) % 3]
yAxis = axes[(x + 4) % 3]
zAxis = axes[(x + 5) % 3]
v = (xAxis * (-cos(a) * sin(b)) + yAxis *
(sin(a) * cos(b)) + zAxis * (cos(a) * cos(b))) * s
v.normalize()
normal.addData3f(v)
vertex.addData3f(v * self.__radius)
texcoord.addData2f(i * 1.0, j * 1.0)
color.addData4f(self.__ocean_color)
face = face + 1
prim = self.__heightmap_primitive()
geom = Geom(vdata)
geom.addPrimitive(prim)
return geom
def addMeshConvexRB(self,vertices, faces,ghost=False,**kw):
#step 1) create GeomVertexData and add vertex information
format=GeomVertexFormat.getV3()
vdata=GeomVertexData("vertices", format, Geom.UHStatic)
vertexWriter=GeomVertexWriter(vdata, "vertex")
[vertexWriter.addData3f(v[0],v[1],v[2]) for v in vertices]
#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)
#step 4) create the bullet mesh and node
mesh = BulletTriangleMesh()
mesh.addGeom(geom)
shape = BulletConvexHullShape(mesh, dynamic=not ghost)#
if ghost :
inodenp = self.worldNP.attachNewNode(BulletGhostNode('Mesh'))
else :
inodenp = self.worldNP.attachNewNode(BulletRigidBodyNode('Mesh'))
inodenp.node().addShape(shape)
# inodenp.setPos(0, 0, 0.1)
self.setRB(inodenp,**kw)
inodenp.setCollideMask(BitMask32.allOn())
self.world.attachRigidBody(inodenp.node())
return inodenp
def makeGeom():
# Vertex data
fmt = GeomVertexFormat.getV3n3t2()
vdata = GeomVertexData('', fmt, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, InternalName.getVertex())
normal = GeomVertexWriter(vdata, InternalName.getNormal())
texcoord = GeomVertexWriter(vdata, InternalName.getTexcoord())
for (x, y, z) in vertices:
vertex.addData3f(x, y, z)
normal.addData3f(0, 0, 0)
# Privitive
prim = GeomTriangles(Geom.UHStatic)
for (i1, i2, i3) in indices:
prim.addVertices(i1, i2, i3)
prim.closePrimitive()
# Geom
geom = Geom(vdata)
geom.addPrimitive(prim)
return geom
def makeSimpleGeom(array, ctup, geomType = GeomPoints, fix = False):
fmt = GeomVertexFormat.getV3c4()
vertexData = GeomVertexData('points', fmt, Geom.UHDynamic) #FIXME use the index for these too? with setPythonTag, will have to 'reserve' some
cloudGeom = Geom(vertexData)
cloudNode = GeomNode('just some points')
verts = GeomVertexWriter(vertexData, 'vertex')
color = GeomVertexWriter(vertexData, 'color')
if fix:
if len(ctup) == len(array):
for point,c in zip(array, ctup):
verts.addData3f(*point)
color.addData4f(*c)
else:
for point in array:
verts.addData3f(*point)
color.addData4f(*ctup)
else:
for point in array:
verts.addData3f(*point)
color.addData4f(*ctup)
points = geomType(Geom.UHDynamic)
points.addConsecutiveVertices(0,len(array))
points.closePrimitive()
cloudGeom.addPrimitive(points)
cloudNode.addGeom(cloudGeom) #TODO figure out if it is faster to add and subtract Geoms from geom nodes...
if fix:
return cloudNode.__reduce__()
else:
return cloudNode # decoding fails becuase ForkingPickler is called for reasons beyond comprehension
def makeSimpleGeomBuffer(array, color, geomType=GeomPoints):
""" massively faster than the nonbuffer version """
full = [tuple(d) for d in np.hstack((array,color))]
fmt = GeomVertexFormat.getV3c4()
vertexData = GeomVertexData('points', fmt, Geom.UHDynamic) #FIXME use the index for these too? with setPythonTag, will have to 'reserve' some
cloudGeom = Geom(vertexData)
cloudNode = GeomNode('just some points')
vertexData.setNumRows(len(array))
mem_array = vertexData.modifyArray(0)
view = memoryview(mem_array)
arr = np.asarray(view)
arr[:] = full
points = geomType(Geom.UHDynamic)
points.addConsecutiveVertices(0,len(array))
points.closePrimitive()
cloudGeom.addPrimitive(points)
cloudNode.addGeom(cloudGeom)
return cloudNode
def makeSimpleGeomBuffer(array, color, geomType=GeomPoints):
""" massively faster than the nonbuffer version """
full = [tuple(d) for d in np.hstack((array, color))]
fmt = GeomVertexFormat.getV3c4()
vertexData = GeomVertexData(
'points', fmt, Geom.UHDynamic
) #FIXME use the index for these too? with setPythonTag, will have to 'reserve' some
cloudGeom = Geom(vertexData)
cloudNode = GeomNode('just some points')
vertexData.setNumRows(len(array))
mem_array = vertexData.modifyArray(0)
view = memoryview(mem_array)
arr = np.asarray(view)
arr[:] = full
points = geomType(Geom.UHDynamic)
points.addConsecutiveVertices(0, len(array))
points.closePrimitive()
cloudGeom.addPrimitive(points)
cloudNode.addGeom(cloudGeom)
return cloudNode
def _makeGeom(array,ctup,i,pipe, geomType=GeomPoints): #XXX testing multiple Geom version ... for perf seems like it will be super slow
#SUUUPER slow TONS of draw calls
#wwwayyy better to make a bunch of geoms ahead of time...
""" multiprocessing capable geometery maker """
fmt = GeomVertexFormat.getV3c4()
cloudNode = GeomNode('bin %s selectable'%(i))
for point in array:
vertexData = GeomVertexData('poitn', fmt, Geom.UHStatic)
GeomVertexWriter(vertexData, 'vertex').addData3f(*point)
GeomVertexWriter(vertexData, 'color').addData4f(*ctup)
#verts.addData3f(*point)
#color.addData4f(*ctup)
points = geomType(Geom.UHStatic)
points.addVertex(0)
points.closePrimitive()
cloudGeom = Geom(vertexData)
cloudGeom.addPrimitive(points)
cloudNode.addGeom(cloudGeom) #TODO figure out if it is faster to add and subtract Geoms from geom nodes...
#output[i] = cloudNode
#print('ping',{i:cloudNode})
#pipe.send((i,))
#out = q.get()
#print('pong',out)
#q.put(out)
if pipe == None:
return (cloudNode)
pipe.send(cloudNode.encodeToBamStream()) #FIXME make this return a pointer NOPE
def __build_Star_Sphere(self, bg_stars):
from panda3d.core import GeomVertexWriter, GeomVertexFormat, GeomVertexData
from panda3d.core import Geom, GeomNode, GeomPoints, AmbientLight
self.star_sphere_np.removeNode()
# Fill GeomVertexData.
vformat = GeomVertexFormat.getV3c4()
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertices = GeomVertexWriter(vdata, "vertex")
colours = GeomVertexWriter(vdata, "color")
for coords in bg_stars:
x, y, z = coords
vertices.addData3f(x, y, z)
colours.addData4f(1, 1, 1, 1)
# Render bg stars.
bg_stars = GeomPoints(Geom.UHStatic)
bg_stars.addNextVertices(_env.STAR_COUNT)
bg_stars_geom = Geom(vdata)
bg_stars_geom.addPrimitive(bg_stars)
star_sphere = GeomNode("star_sphere")
star_sphere.addGeom(bg_stars_geom)
star_sphere_np = NodePath(star_sphere)
star_sphere_np.reparentTo(self.NP)
return star_sphere_np
def makeRotationGeomNode():
vdata = GeomVertexData('rotHandleData', GeomVertexFormat.getV3(),
Geom.UHStatic)
v = GeomVertexWriter(vdata, 'vertex')
radius = 0.7
width = 0.08
res = 30
innerRad = radius - width
for i in xrange(res):
theta = i*(2*pi/res)
v.addData3f(innerRad*sin(theta), innerRad*cos(theta), width/2.0)
v.addData3f(innerRad*sin(theta), innerRad*cos(theta), -width/2.0)
v.addData3f(radius*sin(theta), radius*cos(theta), width/2.0)
v.addData3f(radius*sin(theta), radius*cos(theta), -width/2.0)
circle = Geom(vdata)
# Make prims for the faces of the torus
faces = [GeomTristrips(Geom.UHStatic) for i in xrange(4)]
for i in xrange(res):
i = i*4
faces[0].addVertices(i + 1, i)
faces[1].addVertices(i + 2, i + 1)
faces[2].addVertices(i + 3, i + 2)
faces[3].addVertices(i, i + 3)
for i in xrange(4):
faces[i].addVertices((i + 1) % 4, i)
faces[i].closePrimitive()
circle.addPrimitive(faces[i])
node = GeomNode('geomnode')
node.addGeom(circle)
return node
def create_model(self):
# Set up the vertex arrays
vformat = GeomVertexFormat.get_v3c4()
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
geom = Geom(vdata)
# Vertex data
vertex.addData3f(1.5, 0, -1)
color.addData4f(1, 0, 0, 1)
vertex.addData3f(-1.5, 0, -1)
color.addData4f(0, 1, 0, 1)
vertex.addData3f(0, 0, 1)
color.addData4f(0, 0, 1, 1)
# Primitive
tri = GeomTriangles(Geom.UHStatic)
tri.add_vertex(2)
tri.add_vertex(1)
tri.add_vertex(0)
tri.close_primitive()
geom.addPrimitive(tri)
# Create the actual node
node = GeomNode('geom_node')
node.addGeom(geom)
np = NodePath(node)
# Shader and initial shader vars
np.set_shader(
Shader.load(Shader.SL_GLSL, "shader/shader.vert",
"shader/shader.frag"))
np.set_shader_input("time", 0.0)
# No instancing necessary
#np.set_instance_count(27)
# return np
np.reparent_to(base.render)
self.model = np
def makeSelectRect():
ctup = (1,1,1,1)
fmt = GeomVertexFormat.getV3c4()
vertexData = GeomVertexData('points', fmt, Geom.UHDynamic)
points = ( #makes nice for Tristrips
(0,0,0),
(0,0,1),
(1,0,0),
(1,0,1),
)
verts = GeomVertexWriter(vertexData, 'vertex')
color = GeomVertexWriter(vertexData, 'color')
for point in points:
verts.addData3f(*point)
color.addData4f(*ctup)
boxLines = GeomLinestrips(Geom.UHDynamic)
boxLines.addVertices(0,1,3,2)
boxLines.addVertex(0)
boxLines.closePrimitive()
boxTris = GeomTristrips(Geom.UHDynamic)
boxTris.addConsecutiveVertices(0,3)
boxTris.closePrimitive()
box = Geom(vertexData)
box.addPrimitive(boxLines)
#box.addPrimitive(boxTris)
return box
def draw_rain_mesh(self):
_format = GeomVertexFormat.get_v3cp()
self.rain_vdata = GeomVertexData('rain', _format, Geom.UHDynamic)
self.rain_vdata.setNumRows(self.n_points**2)
vertex = GeomVertexWriter(self.rain_vdata, 'vertex')
color = GeomVertexWriter(self.rain_vdata, 'color')
for j in range(self.n_points):
for i in range(self.n_points):
# Rain Vertices
vertex.addData3f(self.x[j][i], self.y[j][i], self.n_points)
# Rain Colors
color.addData4f(0.3, 0.3, 1, 0)
# Rain Primitive
prim = GeomPoints(Geom.UHDynamic)
for j in range(self.n_points):
for i in range(self.n_points):
prim.add_vertices(j * (self.n_points) + i,
j * (self.n_points) + i,
j * (self.n_points) + i)
geom = Geom(self.rain_vdata)
prim.closePrimitive()
geom.addPrimitive(prim)
node = GeomNode('gnode')
node.addGeom(geom)
rain_nodePath = render.attachNewNode(node)
rain_nodePath.setTransparency(TransparencyAttrib.MAlpha)
rain_nodePath.setAntialias(AntialiasAttrib.MAuto)
rain_nodePath.setRenderModeThickness(2)
rain_nodePath.setPos(-50, -50, 0)
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 draw_face(self,f,f_color):
#add normal
format = GeomVertexFormat.getV3n3cp()
vdata=GeomVertexData('vert', format, Geom.UHDynamic)
vertex=GeomVertexWriter(vdata, 'vertex')
color=GeomVertexWriter(vdata, 'color')
normal=GeomVertexWriter(vdata, 'normal')
vertex.addData3f(f.v1.pos)
normal.addData3f(f.v1.norm.x, f.v1.norm.y, f.v1.norm.z)
color.addData4f(f_color)
vertex.addData3f(f.v2.pos)
normal.addData3f(f.v2.norm.x, f.v2.norm.y, f.v2.norm.z)
color.addData4f(f_color)
vertex.addData3f(f.v3.pos)
normal.addData3f(f.v3.norm.x, f.v3.norm.y, f.v3.norm.z)
color.addData4f(f_color)
mesh = Geom(vdata)
tri = GeomTriangles(Geom.UHDynamic)
tri.addVertex(0)
tri.addVertex(1)
tri.addVertex(2)
tri.closePrimitive()
mesh.addPrimitive(tri)
face_node = GeomNode(self.mesh.name+'_face_'+str(f.ID))
face_node.addGeom(mesh)
face_node.setTag('ID',str(f.ID))
rendered_face = self.render_root.attachNewNode(face_node)
rendered_face.setTwoSided(True)
self.render_nodes['face_'+str(f.ID)] = rendered_face
def __init__(self, length=1., tickness=3.):
GeomNode.__init__(self, "Basis")
self.vertexData = GeomVertexData("Basis", GeomVertexFormat.getV3c4(),
Geom.UHStatic)
self.vertex = GeomVertexWriter(self.vertexData, 'vertex')
self.color = GeomVertexWriter(self.vertexData, 'color')
self.mesh = Geom(self.vertexData)
self.lines = GeomLines(Geom.UHStatic)
self.vertex.addData3f(0.0, 0.0, 0.0)
self.color.addData4f(1.0, 0.0, 0.0, 1.0)
self.vertex.addData3f(length, 0.0, 0.0)
self.color.addData4f(1.0, 0.0, 0.0, 1.0)
self.lines.add_vertices(0, 1)
self.vertex.addData3f(0.0, 0.0, 0.0)
self.color.addData4f(0.0, 1.0, 0.0, 1.0)
self.vertex.addData3f(0.0, length, 0.0)
self.color.addData4f(0.0, 1.0, 0.0, 1.0)
self.lines.add_vertices(2, 3)
self.vertex.addData3f(0.0, 0.0, 0.0)
self.color.addData4f(0.0, 0.0, 1.0, 1.0)
self.vertex.addData3f(0.0, 0.0, length)
self.color.addData4f(0.0, 0.0, 1.0, 1.0)
self.lines.add_vertices(4, 5)
self.lines.closePrimitive()
self.mesh.addPrimitive(self.lines)
self.addGeom(self.mesh)
NodePath(self).setRenderModeThickness(tickness)
NodePath(self).setLightOff()
NodePath(self).setColorOff()
NodePath(self).set_bin('fixed', 9)
def newVertexData(self):
fmt = GeomVertexFormat.getV3c4()
# fmt = GeomVertexFormat.getV3n3c4()
self.vertexData = GeomVertexData("path", fmt, Geom.UHStatic)
self.vertexWriter = GeomVertexWriter(self.vertexData, "vertex")
# self.normalWriter = GeomVertexWriter(self.vertexData, 'normal')
self.colorWriter = GeomVertexWriter(self.vertexData, "color")
def create_instance(self):
self.vertexData = GeomVertexData('vertexData',
GeomVertexFormat.getV3c4(),
Geom.UHStatic)
self.vertexWriter = GeomVertexWriter(self.vertexData, 'vertex')
self.colorwriter = GeomVertexWriter(self.vertexData, 'color')
for point in self.points:
position = point.project(0,
self.context.observer.camera_global_pos,
self.context.observer.infinity)
self.vertexWriter.addData3f(*position)
self.colorwriter.addData4f(*self.color)
self.lines = GeomLines(Geom.UHStatic)
index = 0
for i in range(len(self.points) - 1):
self.lines.addVertex(index)
self.lines.addVertex(index + 1)
self.lines.closePrimitive()
index += 1
self.geom = Geom(self.vertexData)
self.geom.addPrimitive(self.lines)
self.node = GeomNode("boundary")
self.node.addGeom(self.geom)
self.instance = NodePath(self.node)
self.instance.setRenderModeThickness(settings.boundary_thickness)
self.instance.reparentTo(self.context.annotation)
self.instance.setBin('background', settings.boundaries_depth)
self.instance.set_depth_write(False)
def create_model(self):
# Set up the vertex arrays
vformat = GeomVertexFormat.get_v3c4()
vdata = GeomVertexData("Data", vformat, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
geom = Geom(vdata)
# Vertex data
vertex.addData3f(1.5, 0, -1)
color.addData4f(1, 0, 0, 1)
vertex.addData3f(-1.5, 0, -1)
color.addData4f(0, 1, 0, 1)
vertex.addData3f(0, 0, 1)
color.addData4f(0, 0, 1, 1)
# Primitive
tri = GeomTriangles(Geom.UHStatic)
tri.add_vertex(2)
tri.add_vertex(1)
tri.add_vertex(0)
tri.close_primitive()
geom.addPrimitive(tri)
# Create the actual node
node = GeomNode('geom_node')
node.addGeom(geom)
np = NodePath(node)
# Shader and initial shader vars
np.set_shader(Shader.load(Shader.SL_GLSL, "shader/shader.vert", "shader/shader.frag"))
np.set_shader_input("time", 0.0)
# No instancing necessary
#np.set_instance_count(27)
# return np
np.reparent_to(base.render)
self.model = np
def add_plane(map_width, map_height):
# Prepare the vertex format writers
v_fmt = GeomVertexFormat.getV3n3c4()
v_data = GeomVertexData('TerrainData', v_fmt, Geom.UHStatic)
vertex = GeomVertexWriter(v_data, 'vertex')
normal = GeomVertexWriter(v_data, 'normal')
color = GeomVertexWriter(v_data, 'color')
#texcoord = GeomVertexWriter(v_data, 'texcoord')
# Create a primitive
prim = GeomTrifans(Geom.UHStatic)
poly_color = (uniform(0, 0.05), uniform(0, 0.5), uniform(0.5, 1), 0.5, )
for i, point in enumerate([
(-map_width/2, -map_height/2),
(map_width/2, -map_height/2),
(map_width/2, map_height/2),
(-map_width/2, map_height/2), ]):
x, y = point
vertex.addData3f(x, y, 0)
normal.addData3f(0, 0, 1)
color.addData4f(*poly_color)
#texcoord.addData2f(1, 0)
prim.addVertex(i)
prim.addVertex(0)
prim.closePrimitive()
# Add to the scene graph
geom = Geom(v_data)
geom.addPrimitive(prim)
node = GeomNode('gnode')
node.addGeom(geom)
nodePath = render.attachNewNode(node)
nodePath.setTwoSided(True)
nodePath.setAlphaScale(0.5)
def createColoredUnitDisk(color_vec4=Vec4(0., 0., 1., 1.), num_of_verts=10, origin_point=Vec3(0., 0., 0.), radius=1.):
# Own Geometry
# format = GeomVertexFormat.getV3c4t2()
format = GeomVertexFormat.getV3c4()
vdata = GeomVertexData("colored_circle", format, Geom.UHStatic)
vdata.setNumRows(4)
vertexPosWriter = GeomVertexWriter(vdata, "vertex")
# num_of_verts = 10
# phi = 0.
r = radius
# origin_point_x = 0.
# origin_point_z = 0.
vertexPosWriter.addData3f(origin_point[0], origin_point[1], origin_point[2])
circle_points = math_utils.get_circle_vertices(num_of_verts=num_of_verts, radius=r)
circle_points[:,0] += origin_point[0]
circle_points[:,1] += origin_point[1]
circle_points[:,2] += origin_point[2]
_normal_vector_info = Vec3(0., 1., 0.) # this is returned just as info about the normal vector of the generated geometry
for p in circle_points:
vertexPosWriter.addData3f(p[0], 0, p[1])
# for i in range(num_of_verts):
# phi += 2. * np.pi / num_of_verts
# x = r * np.cos(phi)
# z = r * np.sin(phi)
# vertexPosWriter.addData3f(x, 0, z)
# let's also add color to each vertex
colorWriter = GeomVertexWriter(vdata, "color")
colorWriter.addData4f(color_vec4) # origin point
for i in range(num_of_verts):
colorWriter.addData4f(color_vec4)
# make primitives and assign vertices to them (primitives and primitive
# groups can be made independently from vdata, and are later assigned
# to vdata)
tris = GeomTrifans(Geom.UHStatic) # the first vertex is a vertex that all triangles share
tris.add_consecutive_vertices(0, num_of_verts+1)
tris.addVertex(1)
tris.closePrimitive() # the 1st primitive is finished
# make a Geom object to hold the primitives
geom = Geom(vdata)
geom.addPrimitive(tris)
geom_node = GeomNode("colored_circle_node")
geom_node.addGeom(geom)
return geom_node, _normal_vector_info
def create_GeomNode_Single_Point(color_vec4=Vec4(1., 1., 1., 1.)):
# ---- step 1: create point at (0,0,0) and close the primitive
format = GeomVertexFormat.getV3c4()
vdata = GeomVertexData("colored_point", format, Geom.UHStatic)
vdata.setNumRows(4)
# add color to each vertex
colorWriter = GeomVertexWriter(vdata, "color")
# add a vertex position to each vertex
vertexPosWriter = GeomVertexWriter(vdata, "vertex")
# just one origin point vertex, it gets transformed later
# to it's intended position
vertexPosWriter.addData3f(0., 0., 0.)
colorWriter.addData4f(color_vec4)
# build the primitive
pointsprimitive = GeomPoints(Geom.UHStatic)
pointsprimitive.addVertex(0)
pointsprimitive.closePrimitive() # this resets all the data contained in the vertexPosWriter and colorWriter
# ----- step 3: make a GeomNode out of the Geom (to which the Primitives have been added)
# make a Geom object to hold the primitives
geom = Geom(vdata)
geom.addPrimitive(pointsprimitive)
geom_node = GeomNode("colored_point_node")
geom_node.addGeom(geom)
return geom_node
def __init__(self, name):
self.name = name
self.poly_groups = []
# GeomVertexFormats
#
# GeomVertexFormat.getV3cpt2() - vertex, color, uv
# GeomVertexFormat.getV3t2() - vertex, uv
# GeomVertexFormat.getV3cp() - vertex, color
# GeomVertexFormat.getV3n3t2() - vertex, normal, uv
# GeomVertexFormat.getV3n3cpt2()- vertex, normal, rgba, uv
# textured
self.vdata = GeomVertexData(name, GeomVertexFormat.getV3n3cpt2(),
Geom.UHStatic)
# plain color filled polys
# self.vdata = GeomVertexData(name, GeomVertexFormat.getV3cp(), Geom.UHStatic)
self.vertex = GeomVertexWriter(self.vdata, 'vertex')
self.vnormal = GeomVertexWriter(self.vdata, 'normal')
self.color = GeomVertexWriter(self.vdata, 'color')
self.texcoord = GeomVertexWriter(self.vdata, 'texcoord')
self.root = NodePath(PandaNode(name + '_mesh'))
def pandageom_from_vfnf(vertices, face_normals, triangles, name='auto'):
"""
:param vertices: nx3 nparray, each row is vertex
:param face_normals: nx3 nparray, each row is the normal of a face
:param triangles: nx3 nparray, each row is three idx to the vertices
:param name:
:return: a geom model that is ready to be used to define a nodepath
author: weiwei
date: 20160613, 20210109
"""
# expand vertices to let each triangle refer to a different vert+normal
# vertices and normals
vertformat = GeomVertexFormat.getV3n3()
vertexdata = GeomVertexData(name, vertformat, Geom.UHStatic)
vertids = triangles.flatten()
multiplied_verticies = np.empty((len(vertids), 3), dtype=np.float32)
multiplied_verticies[:] = vertices[vertids]
vertex_normals = np.repeat(face_normals.astype(np.float32),
repeats=3,
axis=0)
npstr = np.hstack((multiplied_verticies, vertex_normals)).tobytes()
vertexdata.modifyArrayHandle(0).setData(npstr)
# triangles
primitive = GeomTriangles(Geom.UHStatic)
primitive.setIndexType(GeomEnums.NTUint32)
multiplied_triangles = np.arange(len(vertids),
dtype=np.uint32).reshape(-1, 3)
primitive.modifyVertices(-1).modifyHandle().setData(
multiplied_triangles.tobytes())
# make geom
geom = Geom(vertexdata)
geom.addPrimitive(primitive)
return geom
def pg_draw_tris(pg, render):
format = GeomVertexFormat.getV3c4()
vdata = GeomVertexData('pgtris', format, Geom.UHStatic)
vdata.setNumRows(len(pg.nodes))
vertex = GeomVertexWriter(vdata, 'vertex')
color = GeomVertexWriter(vdata, 'color')
prim = GeomTriangles(Geom.UHStatic)
for pt in pg.nodes:
vertex.addData3f(pt.x, pt.y, pt.z)
color.addData4f(random.random(), random.random(), random.random(), 1.0)
for pt in pg.nodes:
if len(pt.conn) > 0:
for i, cpt in enumerate(pt.conn):
next_cpt = pt.conn[(i + 1) % len(pt.conn)]
prim.addVertices(pt.idx, cpt.idx, next_cpt.idx)
print("%d - %d - %d" % (pt.idx, cpt.idx, next_cpt.idx))
geom = Geom(vdata)
geom.addPrimitive(prim)
node = GeomNode('TheTris')
node.addGeom(geom)
nodePath = render.attachNewNode(node)
nodePath.setPos(0, 10, 0)
def __init__(self, wheel_pos, radius, heading):
self.radius = radius
v_f = GeomVertexFormat.getV3()
self.vdata = GeomVertexData('skid', v_f, Geom.UHDynamic)
self.vdata.setNumRows(1)
self.vertex = GeomVertexWriter(self.vdata, 'vertex')
self.prim = GeomTriangles(Geom.UHStatic)
self.cnt = 1
self.last_pos = wheel_pos
geom = Geom(self.vdata)
geom.addPrimitive(self.prim)
node = GeomNode('gnode')
node.addGeom(geom)
nodePath = render.attachNewNode(node)
nodePath.setTransparency(True)
nodePath.setDepthOffset(1)
self.__set_material(nodePath)
nodePath.node().setBounds(OmniBoundingVolume())
self.add_vertices(radius, heading)
self.add_vertices(radius, heading)
self.remove_seq = Sequence(
Wait(8),
LerpFunc(nodePath.setAlphaScale, 8, 1, 0, 'easeInOut'),
Func(nodePath.remove_node))
self.remove_seq.start()
def create_instance(self):
self.vertexData = GeomVertexData('vertexData',
GeomVertexFormat.getV3(),
Geom.UHStatic)
self.vertexWriter = GeomVertexWriter(self.vertexData, 'vertex')
radius = 1.0
top = LPoint3d(0, 0, radius * 1.25)
north_pole = LPoint3d(0, 0, radius)
south_pole = LPoint3d(0, 0, -radius)
bottom = LPoint3d(0, 0, -radius * 1.25)
self.vertexWriter.addData3f(*top)
self.vertexWriter.addData3f(*north_pole)
self.vertexWriter.addData3f(*south_pole)
self.vertexWriter.addData3f(*bottom)
self.lines = GeomLines(Geom.UHStatic)
self.lines.addVertex(0)
self.lines.addVertex(1)
self.lines.addVertex(2)
self.lines.addVertex(3)
self.lines.closePrimitive()
self.geom = Geom(self.vertexData)
self.geom.addPrimitive(self.lines)
self.node = GeomNode(self.body.get_ascii_name() + '-axis')
self.node.addGeom(self.geom)
self.instance = NodePath(self.node)
self.instance.setRenderModeThickness(settings.axis_thickness)
self.instance.setColor(self.parent.get_orbit_color())
self.instance.setAntialias(AntialiasAttrib.MMultisample)
self.instance.reparentTo(self.context.annotation)
def _make_fullscreen_tri(self):
""" Creates the oversized triangle used for rendering """
vformat = GeomVertexFormat.get_v3()
vdata = GeomVertexData("vertices", vformat, Geom.UH_static)
vdata.set_num_rows(3)
vwriter = GeomVertexWriter(vdata, "vertex")
vwriter.add_data3f(-1, 0, -1)
vwriter.add_data3f(3, 0, -1)
vwriter.add_data3f(-1, 0, 3)
gtris = GeomTriangles(Geom.UH_static)
gtris.add_next_vertices(3)
geom = Geom(vdata)
geom.add_primitive(gtris)
geom_node = GeomNode("gn")
geom_node.add_geom(geom)
geom_node.set_final(True)
geom_node.set_bounds(OmniBoundingVolume())
tri = NodePath(geom_node)
tri.set_depth_test(False)
tri.set_depth_write(False)
tri.set_attrib(TransparencyAttrib.make(TransparencyAttrib.M_none), 10000)
tri.set_color(Vec4(1))
tri.set_bin("unsorted", 10)
tri.reparent_to(self._node)
self._tri = tri
def draw(self):
if self.rendered_mesh != None:
self.reset_draw()
format=GeomVertexFormat.getV3n3cp()
vdata=GeomVertexData('tri', format, Geom.UHDynamic)
vertex=GeomVertexWriter(vdata, 'vertex')
normal=GeomVertexWriter(vdata, 'normal')
color=GeomVertexWriter(vdata, 'color')
v_mapping = {}
i=0
for v in self.verts.values():
vertex.addData3f(v.pos.x,v.pos.y,v.pos.z)
normal.addData3f(v.norm.x, v.norm.y, v.norm.z)
color.addData4f(v.color[0],v.color[1],v.color[2],v.color[3])
v_mapping[v.ID] = i
i += 1
mesh = Geom(vdata)
for f in self.faces.values():
tri = GeomTriangles(Geom.UHDynamic)
tri.addVertex(v_mapping[f.v1.ID])
tri.addVertex(v_mapping[f.v2.ID])
tri.addVertex(v_mapping[f.v3.ID])
tri.closePrimitive()
mesh.addPrimitive(tri)
snode = GeomNode(self.name)
snode.addGeom(mesh)
self.rendered_mesh = render.attachNewNode(snode)
self.rendered_mesh.setTwoSided(True)
def __init__(self, whl_pos, whl_radius, car_h):
GameObject.__init__(self)
self.radius = whl_radius
v_f = GeomVertexFormat.getV3()
vdata = GeomVertexData('skid', v_f, Geom.UHDynamic)
prim = GeomTriangles(Geom.UHStatic)
self.vtx_cnt = 1
self.last_pos = whl_pos
geom = Geom(vdata)
geom.add_primitive(prim)
self.node = GeomNode('gnode')
self.node.add_geom(geom)
nodepath = self.eng.gfx.root.attach_node(self.node)
nodepath.set_transparency(True)
nodepath.set_depth_offset(1)
nodepath.node.set_two_sided(True) # for self-shadowing issues
self.__set_material(nodepath)
nodepath.p3dnode.set_bounds(OmniBoundingVolume())
self.add_vertices(whl_radius, car_h)
self.add_vertices(whl_radius, car_h)
def alpha(time, n_p):
if not n_p.is_empty:
n_p.node.set_shader_input('alpha', time)
# this if seems necessary since, if there are skidmarks and you
# exit from the race (e.g. back to the menu), then alpha is being
# called from the interval manager even if the interval manager
# correctly says that there are 0 intervals.
self.remove_seq = Sequence(
Wait(8), LerpFunc(alpha, 8, .5, 0, 'easeInOut', [nodepath]),
Func(nodepath.remove_node))
self.remove_seq.start()
def draw(self):
if self.rendered_mesh != None:
self.reset_draw()
format = GeomVertexFormat.getV3n3cp()
vdata = GeomVertexData('tri', format, Geom.UHDynamic)
vertex = GeomVertexWriter(vdata, 'vertex')
normal = GeomVertexWriter(vdata, 'normal')
color = GeomVertexWriter(vdata, 'color')
v_mapping = {}
i = 0
for v in self.verts.values():
vertex.addData3f(v.pos.x, v.pos.y, v.pos.z)
normal.addData3f(v.norm.x, v.norm.y, v.norm.z)
color.addData4f(v.color[0], v.color[1], v.color[2], v.color[3])
v_mapping[v.ID] = i
i += 1
mesh = Geom(vdata)
for f in self.faces.values():
tri = GeomTriangles(Geom.UHDynamic)
tri.addVertex(v_mapping[f.v1.ID])
tri.addVertex(v_mapping[f.v2.ID])
tri.addVertex(v_mapping[f.v3.ID])
tri.closePrimitive()
mesh.addPrimitive(tri)
snode = GeomNode(self.name)
snode.addGeom(mesh)
self.rendered_mesh = render.attachNewNode(snode)
self.rendered_mesh.setTwoSided(True)
def makePoints(n=1000):
""" make a cloud of points that are a single node VS branching and making subnodes to control display """
#points = np.random.uniform(-10,10,(n,4))
points = np.random.randn(n, 3)
colors = np.random.rand(n, 4)
fmt = GeomVertexFormat.getV3c4() #3 component vertex, w/ 4 comp color
vertexData = GeomVertexData('points', fmt, Geom.UHStatic)
verts = GeomVertexWriter(vertexData, 'vertex')
color = GeomVertexWriter(vertexData, 'color')
for point, clr4 in zip(points, colors):
#for point in points:
verts.addData3f(*point)
#color.addData4f(*point)
color.addData4f(*clr4)
#color.addData4f(.1,.1,.1,1)
#pointCloud = GeomLinestrips(Geom.UHStatic) #this is f*****g cool!
pointCloud = GeomTristrips(Geom.UHStatic) #this is f*****g cool!
#pointCloud = GeomPoints(Geom.UHStatic)
#pointCloud.addVerticies(*range(n))
pointCloud.addConsecutiveVertices(0, n) #warning may error since n-1?
pointCloud.closePrimitive()
cloud = Geom(vertexData)
cloud.addPrimitive(pointCloud)
return cloud
def _make_fullscreen_tri(self):
""" Creates the oversized triangle used for rendering """
vformat = GeomVertexFormat.get_v3()
vdata = GeomVertexData("vertices", vformat, Geom.UH_static)
vdata.set_num_rows(3)
vwriter = GeomVertexWriter(vdata, "vertex")
vwriter.add_data3f(-1, 0, -1)
vwriter.add_data3f(3, 0, -1)
vwriter.add_data3f(-1, 0, 3)
gtris = GeomTriangles(Geom.UH_static)
gtris.add_next_vertices(3)
geom = Geom(vdata)
geom.add_primitive(gtris)
geom_node = GeomNode("gn")
geom_node.add_geom(geom)
geom_node.set_final(True)
geom_node.set_bounds(OmniBoundingVolume())
tri = NodePath(geom_node)
tri.set_depth_test(False)
tri.set_depth_write(False)
tri.set_attrib(TransparencyAttrib.make(TransparencyAttrib.M_none), 10000)
tri.set_color(Vec4(1))
tri.set_bin("unsorted", 10)
tri.reparent_to(self._node)
self._tri = tri
def create_geom(self, sidelength):
# Set up the vertex arrays
vformat = GeomVertexFormat.getV3n3c4()
vdata = GeomVertexData("Data", vformat, Geom.UHDynamic)
vertex = GeomVertexWriter(vdata, 'vertex')
normal = GeomVertexWriter(vdata, 'normal')
color = GeomVertexWriter(vdata, 'color')
geom = Geom(vdata)
# Write vertex data
for x in range(0, sidelength):
for y in range(0, sidelength):
# vertex_number = x * sidelength + y
v_x, v_y, v_z = self.map_b[(x, y)]
n_x, n_y, n_z = 0.0, 0.0, 1.0
c_r, c_g, c_b, c_a = 0.5, 0.5, 0.5, 0.5
vertex.addData3f(v_x, v_y, v_z)
normal.addData3f(n_x, n_y, n_z)
color.addData4f(c_r, c_g, c_b, c_a)
# Add triangles
for x in range(0, sidelength - 1):
for y in range(0, sidelength - 1):
# The vertex arrangement (y up, x right)
# 2 3
# 0 1
v_0 = x * sidelength + y
v_1 = x * sidelength + (y + 1)
v_2 = (x + 1) * sidelength + y
v_3 = (x + 1) * sidelength + (y + 1)
if (x+y)%1 == 0: # An even square
tris = GeomTriangles(Geom.UHStatic)
tris.addVertices(v_0, v_2, v_3)
tris.closePrimitive()
geom.addPrimitive(tris)
tris = GeomTriangles(Geom.UHStatic)
tris.addVertices(v_3, v_1, v_0)
tris.closePrimitive()
geom.addPrimitive(tris)
else: # An odd square
tris = GeomTriangles(Geom.UHStatic)
tris.addVertices(v_1, v_0, v_2)
tris.closePrimitive()
geom.addPrimitive(tris)
tris = GeomTriangles(Geom.UHStatic)
tris.addVertices(v_2, v_3, v_1)
tris.closePrimitive()
geom.addPrimitive(tris)
# Create the actual node
node = GeomNode('geom_node')
node.addGeom(geom)
# Remember GeomVertexWriters to adjust vertex data later
#self.vertex_writer = vertex
#self.color_writer = color
self.vdata = vdata
return node
def makeVertexFormat(color = True, normal = False, texcoord = False, tan_binorm = False):
myArray = GeomVertexArrayFormat()
myArray.addColumn(InternalName.make('vertex'), 3, Geom.NTFloat32, Geom.CPoint)
if color:
myArray.addColumn(InternalName.make('color'), 4, Geom.NTFloat32, Geom.CColor)
if normal:
myArray.addColumn(InternalName.make('normal'), 3, Geom.NTFloat32, Geom.CVector)
if texcoord:
myArray.addColumn(InternalName.make('texcoord'), 2, Geom.NTFloat32, Geom.CTexcoord)
if tan_binorm:
myArray.addColumn(InternalName.make('tangent'), 3, Geom.NTFloat32, Geom.CVector)
myArray.addColumn(InternalName.make('binormal'), 3, Geom.NTFloat32, Geom.CVector)
myFormat = GeomVertexFormat()
myFormat.addArray(myArray)
myFormat = GeomVertexFormat.registerFormat(myFormat)
return myFormat
def __init__(self):
ShowBase.__init__(self)
PanditorDisableMouseFunc()
camera.setPos(0.0, 0.0, 50.0)
camera.lookAt(0.0)
PanditorEnableMouseFunc()
# 1) create GeomVertexData
frmt = GeomVertexFormat.getV3n3cp()
vdata = GeomVertexData('triangle', frmt, Geom.UHDynamic)
# 2) create Writers/Rewriters (must all be created before any readers and readers are one-pass-temporary)
vertex = GeomVertexRewriter(vdata, 'vertex')
normal = GeomVertexRewriter(vdata, 'normal')
color = GeomVertexRewriter(vdata, 'color')
zUp = Vec3(0, 0, 1)
wt = Vec4(1.0, 1.0, 1.0, 1.0)
gr = Vec4(0.5, 0.5, 0.5, 1.0)
# 3) write each column on the vertex data object (for speed, have a different writer for each column)
def addPoint(x, y, z):
vertex.addData3f(x, y, z)
normal.addData3f(zUp)
color.addData4f(wt)
addPoint(0.0, 0.0, 0.0)
addPoint(5.0, 0.0, 0.0)
addPoint(0.0, 5.0, 0.0)
addPoint(5.0, 5.0, 0.0)
# 4) create a primitive and add the vertices via index (not truely associated with the actual vertex table, yet)
tris = GeomTriangles(Geom.UHDynamic)
tris.addVertices(0, 1, 2)
tris.closePrimitive() # exception thrown if verts added != 3, other types inform Panda how many verts/primitive
tris.addVertices(2, 1, 3)
print "vdataPoints", vdata.getArrays()[0]
# 5.1) (adding to scene) create a Geom and add primitives of like base-type i.e. triangles and triangle strips
geom = Geom(vdata)
geom.addPrimitive(tris)
# 5.2) create a GeomNode to hold the Geom(s) and add the Geom(s)
gn = GeomNode('gnode')
gn.addGeom(geom)
# 5.3) attache the node to the scene
gnNodePath = render.attachNewNode(gn)
geomPts = Geom(vdata)
pts = GeomPoints(Geom.UHStatic)
pts.addVertices(0, 1, 2)
pts.closePrimitive()
geomPts.addPrimitive(pts)
pointsNode = GeomNode('points_node')
pointsNode.addGeom(geomPts)
pointsNP = render.attachNewNode(pointsNode)
pointsNP.setZ(0.5)
render.ls()
def registerObject(self, obj):
""" Registers a new dynamic object, this will store an index for every
vertex, which can be used to read and store last position data in order
to compute the velocity. This method also assigns the standard animated
shader to the node """
self.debug("Registering dynamic object")
# Find all GeomNodes
for node in obj.findAllMatches("**/+GeomNode"):
geomNode = node.node()
geomCount = geomNode.getNumGeoms()
# Find all Geoms
for i in xrange(geomCount):
# Modify vertex data
geom = geomNode.modifyGeom(i)
geomVertexData = geom.modifyVertexData()
# Add a new column named "dovindex" to the vertex data
formatArray = GeomVertexArrayFormat()
formatArray.addColumn(InternalName.make("dovindex"), 1, GeomEnums.NTUint32, GeomEnums.CIndex)
newArrayFormat = GeomVertexFormat(geomVertexData.getFormat())
newArrayFormat.addArray(formatArray)
newArrayFormat = GeomVertexFormat.registerFormat(newArrayFormat)
# Convert the old vertex data and assign the new vertex data
convertedVertexData = geomVertexData.convertTo(newArrayFormat)
geom.setVertexData(convertedVertexData)
# Write the per-vertex indices the dovindex column
newVertexData = geom.modifyVertexData()
vtxReader = GeomVertexReader(newVertexData, "vertex")
indexWriter = GeomVertexWriter(newVertexData, "dovindex")
while not vtxReader.isAtEnd():
data = vtxReader.getData3f()
indexWriter.setData1i(self.currentIndex)
self.currentIndex += 1
if self.currentIndex > self.maxVertexCount:
self.error("Max dynamic vertex count of", self.maxVertexCount, "reached!")
def make_square(x1, y1, z1, x2, y2, z2, tex_coord):
format = GeomVertexFormat.getV3n3t2()
vdata = GeomVertexData("square", format, Geom.UHStatic)
vertex = GeomVertexWriter(vdata, "vertex")
normal = GeomVertexWriter(vdata, "normal")
texcoord = GeomVertexWriter(vdata, "texcoord")
# make sure we draw the sqaure in the right plane
if x1 != x2:
vertex.addData3f(x1, y1, z1)
vertex.addData3f(x2, y1, z1)
vertex.addData3f(x2, y2, z2)
vertex.addData3f(x1, y2, z2)
else:
vertex.addData3f(x1, y1, z1)
vertex.addData3f(x2, y2, z1)
vertex.addData3f(x2, y2, z2)
vertex.addData3f(x1, y1, z2)
normal.addData3f(my_normalize(Vec3(2 * x1 - 1, 2 * y1 - 1, 2 * z1 - 1)))
normal.addData3f(my_normalize(Vec3(2 * x2 - 1, 2 * y2 - 1, 2 * z1 - 1)))
normal.addData3f(my_normalize(Vec3(2 * x2 - 1, 2 * y2 - 1, 2 * z2 - 1)))
normal.addData3f(my_normalize(Vec3(2 * x1 - 1, 2 * y1 - 1, 2 * z2 - 1)))
# adding different colors to the vertex for visibility
u1, v1, u2, v2 = tex_coord
texcoord.addData2f(u1, v2)
texcoord.addData2f(u1, v1)
texcoord.addData2f(u2, v1)
texcoord.addData2f(u2, v2)
# quads arent directly supported by the Geom interface
# you might be interested in the CardMaker class if you are
# interested in rectangle though
tri1 = GeomTriangles(Geom.UHStatic)
tri2 = GeomTriangles(Geom.UHStatic)
tri1.addVertex(0)
tri1.addVertex(1)
tri1.addVertex(3)
tri2.addConsecutiveVertices(1, 3)
tri1.closePrimitive()
tri2.closePrimitive()
square = Geom(vdata)
square.addPrimitive(tri1)
square.addPrimitive(tri2)
return square
def regesterGeomRequirements(self,LOD,collection):
n=NodePath('tmp')
if self.leafTexture is not None:
n.setTexture(self.leafTexture)
n.setShaderInput('diffTex',self.leafTexture)
format=GeomVertexFormat.getV3n3t2()
else:
n.setColor(.1,.3,.1,1)
format=GeomVertexFormat.getV3n3()
#n.setShader(customLoader.makeShader(n,debugCodePrefix="fern",debugGraphPrefix="fern"))
leafRequirements=meshManager.GeomRequirements(
geomVertexFormat=format,
renderState=n.getState(),
)
self.leafDataIndex[LOD]=collection.add(leafRequirements)
def __init__(self):
formatArray = GeomVertexArrayFormat()
formatArray.addColumn(
InternalName.make("drawFlag"), 1, Geom.NTUint8, Geom.COther)
format = GeomVertexFormat(GeomVertexFormat.getV3n3cpt2())
format.addArray(formatArray)
self.format = GeomVertexFormat.registerFormat(format)
bodydata = GeomVertexData("body vertices", format, Geom.UHStatic)
self.barkTexture = loader.loadTexture("barkTexture.jpg")
treeNodePath = NodePath("Tree Holder")
makeFractalTree(bodydata, treeNodePath, LVector3(4, 4, 7))
treeNodePath.setTexture(self.barkTexture, 1)
treeNodePath.reparentTo(render)
self.accept("q", self.regenTree)
self.accept("w", self.addTree)
self.accept("arrow_up", self.upIterations)
self.accept("arrow_down", self.downIterations)
self.accept("arrow_right", self.upCopies)
self.accept("arrow_left", self.downCopies)
self.numIterations = 11
self.numCopies = 4
self.upDownEvent = OnscreenText(
text="Up/Down: Increase/Decrease the number of iterations (" + str(
self.numIterations) + ")",
parent=base.a2dTopLeft, align=TextNode.ALeft,
style=1, fg=(1, 1, 1, 1), pos=(0.06, -0.22),
scale=.05, mayChange=True)
self.leftRightEvent = OnscreenText(
text="Left/Right: Increase/Decrease branching (" + str(
self.numCopies) + ")",
parent=base.a2dTopLeft, align=TextNode.ALeft,
style=1, fg=(1, 1, 1, 1), pos=(0.06, -0.28),
scale=.05, mayChange=True)
def createTriangle(v1, v2, v3, is_flat=False):
x1 = v1.x
y1 = v1.y
z1 = v1.z
x2 = v2.x
y2 = v2.y
z2 = v2.z
x3 = v3.x
y3 = v3.y
z3 = v3.z
format=GeomVertexFormat.getV3n3cp()
vdata=GeomVertexData('tri', format, Geom.UHDynamic)
vertex=GeomVertexWriter(vdata, 'vertex')
normal=GeomVertexWriter(vdata, 'normal')
color=GeomVertexWriter(vdata, 'color')
vertex.addData3f(x1, y1, z1)
vertex.addData3f(x2, y2, z2)
vertex.addData3f(x3, y3, z3)
if is_flat:
normVector = norm(Vec3( (x1 + x2 + x3)/3.0, (y1 + y2 + y3)/3.0, (z1+ z2+ z3)/3.0))
normal.addData3f(normVector)
normal.addData3f(normVector)
normal.addData3f(normVector)
else:
normal.addData3f(norm(Vec3(x1,y1,z1)))
normal.addData3f(norm(Vec3(x2,y2,z2)))
normal.addData3f(norm(Vec3(x3,y3,z3)))
#adding different colors to the vertex for visibility
color.addData4f(0.5,0.5,0.5,1.0)
color.addData4f(0.5,0.5,0.5,1.0)
color.addData4f(0.5,0.5,0.5,1.0)
tri = GeomTriangles(Geom.UHDynamic)
tri.addVertex(0)
tri.addVertex(1)
tri.addVertex(2)
tri.closePrimitive()
output_tri = Geom(vdata)
output_tri.addPrimitive(tri)
return output_tri
def makeSquare(x1, y1, z1, x2, y2, z2):
format = GeomVertexFormat.getV3n3cpt2()
vdata = GeomVertexData('square', format, Geom.UHDynamic)
vertex = GeomVertexWriter(vdata, 'vertex')
normal = GeomVertexWriter(vdata, 'normal')
# color = GeomVertexWriter(vdata, 'color')
texcoord = GeomVertexWriter(vdata, 'texcoord')
# make sure we draw the sqaure in the right plane
if x1 != x2:
vertex.addData3(x1, y1, z1)
vertex.addData3(x2, y1, z1)
vertex.addData3(x2, y2, z2)
vertex.addData3(x1, y2, z2)
normal.addData3(normalized(2 * x1 - 1, 2 * y1 - 1, 2 * z1 - 1))
normal.addData3(normalized(2 * x2 - 1, 2 * y1 - 1, 2 * z1 - 1))
normal.addData3(normalized(2 * x2 - 1, 2 * y2 - 1, 2 * z2 - 1))
normal.addData3(normalized(2 * x1 - 1, 2 * y2 - 1, 2 * z2 - 1))
else:
vertex.addData3(x1, y1, z1)
vertex.addData3(x2, y2, z1)
vertex.addData3(x2, y2, z2)
vertex.addData3(x1, y1, z2)
normal.addData3(normalized(2 * x1 - 1, 2 * y1 - 1, 2 * z1 - 1))
normal.addData3(normalized(2 * x2 - 1, 2 * y2 - 1, 2 * z1 - 1))
normal.addData3(normalized(2 * x2 - 1, 2 * y2 - 1, 2 * z2 - 1))
normal.addData3(normalized(2 * x1 - 1, 2 * y1 - 1, 2 * z2 - 1))
# adding different colors to the vertex for visibility
# color.addData4f(1.0, 0.0, 0.0, 1.0)
# color.addData4f(0.0, 1.0, 0.0, 1.0)
# color.addData4f(0.0, 0.0, 1.0, 1.0)
# color.addData4f(1.0, 0.0, 1.0, 1.0)
texcoord.addData2f(0.0, 1.0)
texcoord.addData2f(0.0, 0.0)
texcoord.addData2f(1.0, 0.0)
texcoord.addData2f(1.0, 1.0)
# Quads aren't directly supported by the Geom interface
# you might be interested in the CardMaker class if you are
# interested in rectangle though
tris = GeomTriangles(Geom.UHDynamic)
tris.addVertices(0, 1, 3)
tris.addVertices(1, 2, 3)
square = Geom(vdata)
square.addPrimitive(tris)
return square