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blender-addons/render_povray/model_primitives_topology.py
Maurice Raybaud 015248ed8d POV: Fix POV specific primitives 
Using object.update_tag() as pov specific object typing property set from python would not be visible from depsgraph before file save, causing mesh proxies to export rather than their pure untesselated pov shapes.
2022-05-01 18:45:27 +02:00

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# SPDX-License-Identifier: GPL-2.0-or-later
# <pep8 compliant>
""" Get POV-Ray specific objects In and Out of Blender """
from math import pi, cos, sin
import os.path
import bpy
from bpy_extras.object_utils import object_data_add
from bpy_extras.io_utils import ImportHelper
from bpy.utils import register_class, unregister_class
from bpy.types import Operator
from bpy.props import (
StringProperty,
BoolProperty,
IntProperty,
FloatProperty,
FloatVectorProperty,
EnumProperty,
)
from mathutils import Vector, Matrix
from . import model_primitives
class POV_OT_lathe_add(Operator):
"""Add the representation of POV lathe using a screw modifier."""
bl_idname = "pov.addlathe"
bl_label = "Lathe"
bl_description = "adds lathe"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# ayers=[False]*20
# layers[0]=True
bpy.ops.curve.primitive_bezier_curve_add(
location=context.scene.cursor.location,
rotation=(0, 0, 0),
# layers=layers,
)
ob = context.view_layer.objects.active
ob_data = ob.data
ob.name = ob_data.name = "PovLathe"
ob_data.dimensions = "2D"
ob_data.transform(Matrix.Rotation(-pi / 2.0, 4, "Z"))
ob.pov.object_as = "LATHE"
self.report(
{"INFO"}, "This native POV-Ray primitive" "won't have any vertex to show in edit mode"
)
ob.pov.curveshape = "lathe"
bpy.ops.object.modifier_add(type="SCREW")
mod = ob.modifiers[-1]
mod.axis = "Y"
mod.show_render = False
ob.update_tag() # as prop set via python not updated in depsgraph
return {"FINISHED"}
def pov_superellipsoid_define(context, op, ob):
"""Create the proxy mesh of a POV superellipsoid using pov_superellipsoid_define()."""
if op:
mesh = None
u = op.se_u
v = op.se_v
n1 = op.se_n1
n2 = op.se_n2
edit = op.se_edit
se_param1 = n2 # op.se_param1
se_param2 = n1 # op.se_param2
else:
assert ob
mesh = ob.data
u = ob.pov.se_u
v = ob.pov.se_v
n1 = ob.pov.se_n1
n2 = ob.pov.se_n2
edit = ob.pov.se_edit
se_param1 = ob.pov.se_param1
se_param2 = ob.pov.se_param2
verts = []
r = 1
stepSegment = 360 / v * pi / 180
stepRing = pi / u
angSegment = 0
angRing = -pi / 2
step = 0
for ring in range(0, u - 1):
angRing += stepRing
for segment in range(0, v):
step += 1
angSegment += stepSegment
x = r * (abs(cos(angRing)) ** n1) * (abs(cos(angSegment)) ** n2)
if (cos(angRing) < 0 < cos(angSegment)) or (cos(angRing) > 0 > cos(angSegment)):
x = -x
y = r * (abs(cos(angRing)) ** n1) * (abs(sin(angSegment)) ** n2)
if (cos(angRing) < 0 < sin(angSegment)) or (cos(angRing) > 0 > sin(angSegment)):
y = -y
z = r * (abs(sin(angRing)) ** n1)
if sin(angRing) < 0:
z = -z
x = round(x, 4)
y = round(y, 4)
z = round(z, 4)
verts.append((x, y, z))
if edit == "TRIANGLES":
verts.extend([(0, 0, 1),(0, 0, -1)])
faces = []
for i in range(0, u - 2):
m = i * v
for p in range(0, v):
if p < v - 1:
face = (m + p, 1 + m + p, v + 1 + m + p, v + m + p)
if p == v - 1:
face = (m + p, m, v + m, v + m + p)
faces.append(face)
if edit == "TRIANGLES":
indexUp = len(verts) - 2
indexDown = len(verts) - 1
indexStartDown = len(verts) - 2 - v
for i in range(0, v):
if i < v - 1:
face = (indexDown, i, i + 1)
faces.append(face)
if i == v - 1:
face = (indexDown, i, 0)
faces.append(face)
for i in range(0, v):
if i < v - 1:
face = (indexUp, i + indexStartDown, i + indexStartDown + 1)
faces.append(face)
if i == v - 1:
face = (indexUp, i + indexStartDown, indexStartDown)
faces.append(face)
if edit == "NGONS":
face = list(range(v))
faces.append(face)
face = []
indexUp = len(verts) - 1
for i in range(0, v):
face.append(indexUp - i)
faces.append(face)
mesh = model_primitives.pov_define_mesh(mesh, verts, [], faces, "SuperEllipsoid")
if not ob:
ob = object_data_add(context, mesh, operator=None)
# engine = context.scene.render.engine what for?
ob = context.object
ob.name = ob.data.name = "PovSuperellipsoid"
ob.pov.se_param1 = n2
ob.pov.se_param2 = n1
ob.pov.se_u = u
ob.pov.se_v = v
ob.pov.se_n1 = n1
ob.pov.se_n2 = n2
ob.pov.se_edit = edit
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
ob.data.auto_smooth_angle = 1.3
bpy.ops.object.shade_smooth()
ob.pov.object_as = "SUPERELLIPSOID"
ob.update_tag() # as prop set via python not updated in depsgraph
class POV_OT_superellipsoid_add(Operator):
"""Add the representation of POV superellipsoid using the pov_superellipsoid_define()."""
bl_idname = "pov.addsuperellipsoid"
bl_label = "Add SuperEllipsoid"
bl_description = "Create a SuperEllipsoid"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
# Keep in sync within model_properties.py section Superellipsoid
# as this allows interactive update
# If someone knows how to define operators' props from a func, I'd be delighted to learn it!
# XXX ARE the first two used for import ? could we hide or suppress them otherwise?
se_param1: FloatProperty(name="Parameter 1", description="", min=0.00, max=10.0, default=0.04)
se_param2: FloatProperty(name="Parameter 2", description="", min=0.00, max=10.0, default=0.04)
se_u: IntProperty(
name="U-segments", description="radial segmentation", default=20, min=4, max=265
)
se_v: IntProperty(
name="V-segments", description="lateral segmentation", default=20, min=4, max=265
)
se_n1: FloatProperty(
name="Ring manipulator",
description="Manipulates the shape of the Ring",
default=1.0,
min=0.01,
max=100.0,
)
se_n2: FloatProperty(
name="Cross manipulator",
description="Manipulates the shape of the cross-section",
default=1.0,
min=0.01,
max=100.0,
)
se_edit: EnumProperty(
items=[("NOTHING", "Nothing", ""), ("NGONS", "N-Gons", ""), ("TRIANGLES", "Triangles", "")],
name="Fill up and down",
description="",
default="TRIANGLES",
)
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
return engine in cls.COMPAT_ENGINES
def execute(self, context):
pov_superellipsoid_define(context, self, None)
self.report(
{"INFO"}, "This native POV-Ray primitive" "won't have any vertex to show in edit mode"
)
return {"FINISHED"}
class POV_OT_superellipsoid_update(Operator):
"""Update the superellipsoid.
Delete its previous proxy geometry and rerun pov_superellipsoid_define() function
with the new parameters"""
bl_idname = "pov.superellipsoid_update"
bl_label = "Update"
bl_description = "Update Superellipsoid"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
ob = context.object
return ob and ob.data and ob.type == "MESH" and engine in cls.COMPAT_ENGINES
def execute(self, context):
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.reveal()
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.delete(type="VERT")
bpy.ops.object.mode_set(mode="OBJECT")
pov_superellipsoid_define(context, None, context.object)
return {"FINISHED"}
def create_faces(vert_idx_1, vert_idx_2, closed=False, flipped=False):
"""Generate viewport proxy mesh data for some pov primitives"""
faces = []
if not vert_idx_1 or not vert_idx_2:
return None
if len(vert_idx_1) < 2 and len(vert_idx_2) < 2:
return None
fan = False
if len(vert_idx_1) != len(vert_idx_2):
if len(vert_idx_1) == 1 and len(vert_idx_2) > 1:
fan = True
else:
return None
total = len(vert_idx_2)
if closed:
if flipped:
face = [vert_idx_1[0], vert_idx_2[0], vert_idx_2[total - 1]]
if not fan:
face.append(vert_idx_1[total - 1])
else:
face = [vert_idx_2[0], vert_idx_1[0]]
if not fan:
face.append(vert_idx_1[total - 1])
face.append(vert_idx_2[total - 1])
faces.append(face)
for num in range(total - 1):
if flipped:
if fan:
face = [vert_idx_2[num], vert_idx_1[0], vert_idx_2[num + 1]]
else:
face = [vert_idx_2[num], vert_idx_1[num], vert_idx_1[num + 1], vert_idx_2[num + 1]]
elif fan:
face = [vert_idx_1[0], vert_idx_2[num], vert_idx_2[num + 1]]
else:
face = [vert_idx_1[num], vert_idx_2[num], vert_idx_2[num + 1], vert_idx_1[num + 1]]
faces.append(face)
return faces
def power(a, b):
"""Workaround to negative a, where the math.pow() method would return a ValueError."""
return -((-a) ** b) if a < 0 else a**b
def supertoroid(R, r, u, v, n1, n2):
a = 2 * pi / u
b = 2 * pi / v
verts = []
faces = []
for i in range(u):
s = power(sin(i * a), n1)
c = power(cos(i * a), n1)
for j in range(v):
c2 = R + r * power(cos(j * b), n2)
s2 = r * power(sin(j * b), n2)
verts.append((c * c2, s * c2, s2)) # type as a (mathutils.Vector(c*c2,s*c2,s2))?
if i > 0:
f = create_faces(range((i - 1) * v, i * v), range(i * v, (i + 1) * v), closed=True)
faces.extend(f)
f = create_faces(range((u - 1) * v, u * v), range(v), closed=True)
faces.extend(f)
return verts, faces
def pov_supertorus_define(context, op, ob):
"""Get POV supertorus properties from operator (object creation/import) or data update."""
if op:
mesh = None
st_R = op.st_R
st_r = op.st_r
st_u = op.st_u
st_v = op.st_v
st_n1 = op.st_n1
st_n2 = op.st_n2
st_ie = op.st_ie
st_edit = op.st_edit
else:
assert ob
mesh = ob.data
st_R = ob.pov.st_major_radius
st_r = ob.pov.st_minor_radius
st_u = ob.pov.st_u
st_v = ob.pov.st_v
st_n1 = ob.pov.st_ring
st_n2 = ob.pov.st_cross
st_ie = ob.pov.st_ie
st_edit = ob.pov.st_edit
if st_ie:
rad1 = (st_R + st_r) / 2
rad2 = (st_R - st_r) / 2
if rad2 > rad1:
[rad1, rad2] = [rad2, rad1]
else:
rad1 = st_R
rad2 = st_r
if rad2 > rad1:
rad1 = rad2
verts, faces = supertoroid(rad1, rad2, st_u, st_v, st_n1, st_n2)
mesh = model_primitives.pov_define_mesh(mesh, verts, [], faces, "PovSuperTorus", True)
if not ob:
ob = object_data_add(context, mesh, operator=None)
ob.pov.object_as = "SUPERTORUS"
ob.pov.st_major_radius = st_R
ob.pov.st_minor_radius = st_r
ob.pov.st_u = st_u
ob.pov.st_v = st_v
ob.pov.st_ring = st_n1
ob.pov.st_cross = st_n2
ob.pov.st_ie = st_ie
ob.pov.st_edit = st_edit
ob.update_tag() # as prop set via python not updated in depsgraph
class POV_OT_supertorus_add(Operator):
"""Add the representation of POV supertorus using the pov_supertorus_define() function."""
bl_idname = "pov.addsupertorus"
bl_label = "Add Supertorus"
bl_description = "Create a SuperTorus"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
st_R: FloatProperty(
name="big radius",
description="The radius inside the tube",
default=1.0,
min=0.01,
max=100.0,
)
st_r: FloatProperty(
name="small radius", description="The radius of the tube", default=0.3, min=0.01, max=100.0
)
st_u: IntProperty(
name="U-segments", description="radial segmentation", default=16, min=3, max=265
)
st_v: IntProperty(
name="V-segments", description="lateral segmentation", default=8, min=3, max=265
)
st_n1: FloatProperty(
name="Ring manipulator",
description="Manipulates the shape of the Ring",
default=1.0,
min=0.01,
max=100.0,
)
st_n2: FloatProperty(
name="Cross manipulator",
description="Manipulates the shape of the cross-section",
default=1.0,
min=0.01,
max=100.0,
)
st_ie: BoolProperty(
name="Use Int.+Ext. radii", description="Use internal and external radii", default=False
)
st_edit: BoolProperty(name="", description="", default=False, options={"HIDDEN"})
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
return engine in cls.COMPAT_ENGINES
def execute(self, context):
pov_supertorus_define(context, self, None)
self.report(
{"INFO"}, "This native POV-Ray primitive" "won't have any vertex to show in edit mode"
)
return {"FINISHED"}
class POV_OT_supertorus_update(Operator):
"""Update the supertorus.
Delete its previous proxy geometry and rerun pov_supetorus_define() function
with the new parameters"""
bl_idname = "pov.supertorus_update"
bl_label = "Update"
bl_description = "Update SuperTorus"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
ob = context.object
return ob and ob.data and ob.type == "MESH" and engine in cls.COMPAT_ENGINES
def execute(self, context):
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.reveal()
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.delete(type="VERT")
bpy.ops.object.mode_set(mode="OBJECT")
pov_supertorus_define(context, None, context.object)
return {"FINISHED"}
# -----------------------------------------------------------------------------
class POV_OT_loft_add(Operator):
"""Create the representation of POV loft using Blender curves."""
bl_idname = "pov.addloft"
bl_label = "Add Loft Data"
bl_description = "Create a Curve data for Meshmaker"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
loft_n: IntProperty(
name="Segments", description="Vertical segments", default=16, min=3, max=720
)
loft_rings_bottom: IntProperty(
name="Bottom", description="Bottom rings", default=5, min=2, max=100
)
loft_rings_side: IntProperty(name="Side", description="Side rings", default=10, min=2, max=100)
loft_thick: FloatProperty(
name="Thickness",
description="Manipulates the shape of the Ring",
default=0.3,
min=0.01,
max=1.0,
)
loft_r: FloatProperty(name="Radius", description="Radius", default=1, min=0.01, max=10)
loft_height: FloatProperty(
name="Height",
description="Manipulates the shape of the Ring",
default=2,
min=0.01,
max=10.0,
)
def execute(self, context):
props = self.properties
loft_data = bpy.data.curves.new("Loft", type="CURVE")
loft_data.dimensions = "3D"
loft_data.resolution_u = 2
# loft_data.show_normal_face = False # deprecated in 2.8
n = props.loft_n
thick = props.loft_thick
side = props.loft_rings_side
bottom = props.loft_rings_bottom
h = props.loft_height
r = props.loft_r
distB = r / bottom
r0 = 0.00001
z = -h / 2
print("New")
for i in range(bottom + 1):
coords = []
angle = 0
for p in range(n):
x = r0 * cos(angle)
y = r0 * sin(angle)
coords.append((x, y, z))
angle += pi * 2 / n
r0 += distB
nurbs = loft_data.splines.new("NURBS")
nurbs.points.add(len(coords) - 1)
for c, coord in enumerate(coords):
x, y, z = coord
nurbs.points[c].co = (x, y, z, 1)
nurbs.use_cyclic_u = True
for i in range(side):
z += h / side
coords = []
angle = 0
for p in range(n):
x = r * cos(angle)
y = r * sin(angle)
coords.append((x, y, z))
angle += pi * 2 / n
nurbs = loft_data.splines.new("NURBS")
nurbs.points.add(len(coords) - 1)
for c, coord in enumerate(coords):
x, y, z = coord
nurbs.points[c].co = (x, y, z, 1)
nurbs.use_cyclic_u = True
r -= thick
for i in range(side):
coords = []
angle = 0
for p in range(n):
x = r * cos(angle)
y = r * sin(angle)
coords.append((x, y, z))
angle += pi * 2 / n
nurbs = loft_data.splines.new("NURBS")
nurbs.points.add(len(coords) - 1)
for c, coord in enumerate(coords):
x, y, z = coord
nurbs.points[c].co = (x, y, z, 1)
nurbs.use_cyclic_u = True
z -= h / side
z = (-h / 2) + thick
distB = (r - 0.00001) / bottom
for i in range(bottom + 1):
coords = []
angle = 0
for p in range(n):
x = r * cos(angle)
y = r * sin(angle)
coords.append((x, y, z))
angle += pi * 2 / n
r -= distB
nurbs = loft_data.splines.new("NURBS")
nurbs.points.add(len(coords) - 1)
for c, coord in enumerate(coords):
x, y, z = coord
nurbs.points[c].co = (x, y, z, 1)
nurbs.use_cyclic_u = True
ob = bpy.data.objects.new("Loft_shape", loft_data)
scn = bpy.context.scene
scn.collection.objects.link(ob)
context.view_layer.objects.active = ob
ob.select_set(True)
ob.pov.curveshape = "loft"
return {"FINISHED"}
# ----------------------------------- ISOSURFACES ----------------------------------- #
def pov_isosurface_view_define(context, op, ob, loc):
"""create the representation of POV isosurface using a Blender empty."""
if op:
eq = op.isosurface_eq
loc = bpy.context.scene.cursor.location
else:
assert ob
eq = ob.pov.isosurface_eq
# keep object rotation and location for the add object operator
obrot = ob.rotation_euler
# obloc = ob.location
obscale = ob.scale
# bpy.ops.object.empty_add(type='CUBE', location=loc, rotation=obrot)
bpy.ops.mesh.primitive_emptyvert_add()
# bpy.ops.transform.rotate(axis=obrot,orient_type='GLOBAL')
bpy.ops.transform.resize(value=obscale)
# bpy.ops.transform.rotate(axis=obrot, proportional_size=1)
bpy.ops.object.mode_set(mode="OBJECT")
if not ob:
# bpy.ops.object.empty_add(type='CUBE', location=loc)
bpy.ops.mesh.primitive_emptyvert_add()
ob = context.object
ob.name = ob.data.name = "PovIsosurface"
ob.pov.object_as = "ISOSURFACE_VIEW"
ob.pov.isosurface_eq = eq
ob.pov.contained_by = "box"
bpy.ops.object.mode_set(mode="OBJECT")
ob.update_tag() # as prop set via python not updated in depsgraph
class POV_OT_isosurface_add(Operator):
"""Add the representation of POV isosurface sphere by a Blender mesh icosphere.
Flag its primitive type with a specific pov.object_as attribute and lock edit mode
to keep proxy consistency by hiding edit geometry."""
bl_idname = "pov.addisosurface"
bl_label = "Generic Isosurface"
bl_description = "Add Isosurface"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
# Keep in sync within model_properties.py section Sphere
# as this allows interactive update
isosurface_eq: StringProperty(
name="f(x,y,z)=",
description="Type the POV Isosurface function syntax for equation, "
"pattern,etc. ruling an implicit surface to be rendered",
default="sqrt(pow(x,2) + pow(y,2) + pow(z,2)) - 1.5",
)
imported_loc: FloatVectorProperty(
name="Imported Pov location", precision=6, default=(0.0, 0.0, 0.0)
)
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
props = self.properties
if ob := context.object:
if ob.pov.imported_loc:
LOC = ob.pov.imported_loc
elif not props.imported_loc:
LOC = bpy.context.scene.cursor.location
else:
LOC = props.imported_loc
try:
pov_isosurface_view_define(context, self, None, LOC)
self.report(
{"INFO"}, "This native POV-Ray primitive " "is only an abstract proxy in Blender"
)
except AttributeError:
self.report({"INFO"}, "Please enable Add Mesh: Extra Objects addon")
return {"FINISHED"}
class POV_OT_isosurface_update(Operator):
"""Update the POV isosurface.
Rerun pov_isosurface_view_define() function
with the new parameters"""
bl_idname = "pov.isosurface_update"
bl_label = "Update"
bl_description = "Update Isosurface"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
ob = context.object
return ob and ob.data and ob.type == "ISOSURFACE_VIEW" and engine in cls.COMPAT_ENGINES
def execute(self, context):
pov_isosurface_view_define(context, None, context.object, context.object.location)
return {"FINISHED"}
class POV_OT_isosurface_box_add(Operator):
"""Add the representation of POV isosurface box using also just a Blender mesh cube.
Flag its primitive type with a specific pov.object_as attribute and lock edit mode
to keep proxy consistency by hiding edit geometry."""
bl_idname = "pov.addisosurfacebox"
bl_label = "Isosurface Box"
bl_description = "Add Isosurface contained by Box"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.mesh.primitive_cube_add()
ob = context.object
bpy.ops.object.mode_set(mode="EDIT")
self.report(
{"INFO"}, "This native POV-Ray primitive " "won't have any vertex to show in edit mode"
)
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
ob.pov.object_as = "ISOSURFACE_NODE"
ob.pov.contained_by = "box"
ob.name = "PovIsosurfaceBox"
ob.update_tag() # as prop set via python not updated in depsgraph
return {"FINISHED"}
class POV_OT_isosurface_sphere_add(Operator):
"""Add the representation of POV isosurface sphere by a Blender mesh icosphere.
Flag its primitive type with a specific pov.object_as attribute and lock edit mode
to keep proxy consistency by hiding edit geometry."""
bl_idname = "pov.addisosurfacesphere"
bl_label = "Isosurface Sphere"
bl_description = "Add Isosurface contained by Sphere"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.mesh.primitive_ico_sphere_add(subdivisions=4)
ob = context.object
bpy.ops.object.mode_set(mode="EDIT")
self.report(
{"INFO"}, "This native POV-Ray primitive " "won't have any vertex to show in edit mode"
)
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
bpy.ops.object.shade_smooth()
ob.pov.object_as = "ISOSURFACE_NODE"
ob.pov.contained_by = "sphere"
ob.name = "PovIsosurfaceSphere"
ob.update_tag() # as prop set via python not updated in depsgraph
return {"FINISHED"}
class POV_OT_sphere_sweep_add(Operator):
"""Add the representation of POV sphere_sweep using a Blender NURBS curve.
Flag its primitive type with a specific ob.pov.curveshape attribute and
leave access to edit mode to keep user editable handles."""
bl_idname = "pov.addspheresweep"
bl_label = "Sphere Sweep"
bl_description = "Create Sphere Sweep along curve"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.curve.primitive_nurbs_curve_add()
ob = context.object
ob.name = ob.data.name = "PovSphereSweep"
ob.pov.curveshape = "sphere_sweep"
ob.data.bevel_depth = 0.02
ob.data.bevel_resolution = 4
ob.data.fill_mode = "FULL"
# ob.data.splines[0].order_u = 4
return {"FINISHED"}
class POV_OT_blobsphere_add(Operator):
"""Add the representation of POV blob using a Blender meta ball.
No need to flag its primitive type as meta are exported to blobs
and leave access to edit mode to keep user editable thresholds."""
bl_idname = "pov.addblobsphere"
bl_label = "Blob Sphere"
bl_description = "Add Blob Sphere"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.object.metaball_add(type="BALL")
ob = context.object
ob.name = "PovBlob"
return {"FINISHED"}
class POV_OT_blobcapsule_add(Operator):
"""Add the representation of POV blob using a Blender meta ball.
No need to flag its primitive type as meta are exported to blobs
and leave access to edit mode to keep user editable thresholds."""
bl_idname = "pov.addblobcapsule"
bl_label = "Blob Capsule"
bl_description = "Add Blob Capsule"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.object.metaball_add(type="CAPSULE")
ob = context.object
ob.name = "PovBlob"
return {"FINISHED"}
class POV_OT_blobplane_add(Operator):
"""Add the representation of POV blob using a Blender meta ball.
No need to flag its primitive type as meta are exported to blobs
and leave access to edit mode to keep user editable thresholds."""
bl_idname = "pov.addblobplane"
bl_label = "Blob Plane"
bl_description = "Add Blob Plane"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.object.metaball_add(type="PLANE")
ob = context.object
ob.name = "PovBlob"
return {"FINISHED"}
class POV_OT_blobellipsoid_add(Operator):
"""Add the representation of POV blob using a Blender meta ball.
No need to flag its primitive type as meta are exported to blobs
and leave access to edit mode to keep user editable thresholds."""
bl_idname = "pov.addblobellipsoid"
bl_label = "Blob Ellipsoid"
bl_description = "Add Blob Ellipsoid"
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.object.metaball_add(type="ELLIPSOID")
ob = context.object
ob.name = "PovBlob"
return {"FINISHED"}
class POV_OT_blobcube_add(Operator):
"""Add the representation of POV blob using a Blender meta ball.
No need to flag its primitive type as meta are exported to blobs
and leave access to edit mode to keep user editable thresholds."""
bl_idname = "pov.addblobcube"
bl_label = "Blob Cube"
bl_description = "Add Blob Cube"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
def execute(self, context):
# layers = 20*[False]
# layers[0] = True
bpy.ops.object.metaball_add(type="CUBE")
ob = context.object
ob.name = "PovBlob"
return {"FINISHED"}
class POV_OT_height_field_add(bpy.types.Operator, ImportHelper):
"""Add the representation of POV height_field using a displaced grid.
texture slot fix and displace modifier will be needed because noise
displace operator was deprecated in 2.8"""
bl_idname = "pov.addheightfield"
bl_label = "Height Field"
bl_description = "Add Height Field"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
# Keep in sync within model_properties.py section HeightFields
# as this allows interactive update
# filename_ext = ".png"
# filter_glob = StringProperty(
# default="*.exr;*.gif;*.hdr;*.iff;*.jpeg;*.jpg;*.pgm;*.png;*.pot;*.ppm;*.sys;*.tga;*.tiff;*.EXR;*.GIF;*.HDR;*.IFF;*.JPEG;*.JPG;*.PGM;*.PNG;*.POT;*.PPM;*.SYS;*.TGA;*.TIFF",
# options={'HIDDEN'},
# )
quality: IntProperty(name="Quality", description="", default=100, min=1, max=100)
hf_filename: StringProperty(maxlen=1024)
hf_gamma: FloatProperty(name="Gamma", description="Gamma", min=0.0001, max=20.0, default=1.0)
hf_premultiplied: BoolProperty(name="Premultiplied", description="Premultiplied", default=True)
hf_smooth: BoolProperty(name="Smooth", description="Smooth", default=False)
hf_water: FloatProperty(
name="Water Level", description="Wather Level", min=0.00, max=1.00, default=0.0
)
hf_hierarchy: BoolProperty(name="Hierarchy", description="Height field hierarchy", default=True)
def execute(self, context):
props = self.properties
impath = bpy.path.abspath(self.filepath)
img = bpy.data.images.load(impath)
im_name = img.name
im_name, file_extension = os.path.splitext(im_name)
hf_tex = bpy.data.textures.new("%s_hf_image" % im_name, type="IMAGE")
hf_tex.image = img
mat = bpy.data.materials.new("Tex_%s_hf" % im_name)
hf_slot = mat.pov_texture_slots.add()
hf_slot.texture = hf_tex.name
# layers = 20*[False]
# layers[0] = True
quality = props.quality
res = 100 / quality
w, h = hf_tex.image.size[:]
w = int(w / res)
h = int(h / res)
bpy.ops.mesh.primitive_grid_add(x_subdivisions=w, y_subdivisions=h, size=0.5)
ob = context.object
ob.name = ob.data.name = "%s" % im_name
ob.data.materials.append(mat)
bpy.ops.object.mode_set(mode="EDIT")
# bpy.ops.mesh.noise(factor=1) # TODO replace by displace modifier, noise deprecated in 2.8
bpy.ops.object.mode_set(mode="OBJECT")
# needs a loop to select by index?
# bpy.ops.object.material_slot_remove()
# material just left there for now
mat.pov_texture_slots.clear()
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
ob.pov.object_as = "HEIGHT_FIELD"
# POV-Ray will soon use only forwards slashes on every OS and already can
forward_impath = impath.replace(os.sep, "/")
ob.pov.hf_filename = forward_impath
ob.update_tag() # as prop set via python not updated in depsgraph
return {"FINISHED"}
# ----------------------------------- PARAMETRIC ----------------------------------- #
def pov_parametric_define(context, op, ob):
"""Add the representation of POV parametric surfaces by math surface from add mesh extra objects addon.
Picking properties either from creation operator, import, or data update.
But flag its primitive type with a specific pov.object_as attribute and lock edit mode
to keep proxy consistency by hiding edit geometry."""
if op:
u_min = op.u_min
u_max = op.u_max
v_min = op.v_min
v_max = op.v_max
x_eq = op.x_eq
y_eq = op.y_eq
z_eq = op.z_eq
else:
assert ob
u_min = ob.pov.u_min
u_max = ob.pov.u_max
v_min = ob.pov.v_min
v_max = ob.pov.v_max
x_eq = ob.pov.x_eq
y_eq = ob.pov.y_eq
z_eq = ob.pov.z_eq
# keep object rotation and location for the updated object
obloc = ob.location
obrot = ob.rotation_euler # In radians
# Parametric addon has no loc rot, some extra work is needed
# in case cursor has moved
curloc = bpy.context.scene.cursor.location
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.reveal()
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.delete(type="VERT")
bpy.ops.mesh.primitive_xyz_function_surface(
x_eq=x_eq,
y_eq=y_eq,
z_eq=z_eq,
range_u_min=u_min,
range_u_max=u_max,
range_v_min=v_min,
range_v_max=v_max,
)
bpy.ops.mesh.select_all(action="SELECT")
# extra work:
bpy.ops.transform.translate(value=(obloc - curloc), proportional_size=1)
# XXX TODO : https://devtalk.blender.org/t/bpy-ops-transform-rotate-option-axis/6235/7
# to complete necessary extra work rotation, after updating from blender version > 2.92
# update and uncomment below, but simple axis deprecated since 2.8
# bpy.ops.transform.rotate(axis=obrot, proportional_size=1)
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
if not ob:
bpy.ops.mesh.primitive_xyz_function_surface(
x_eq=x_eq,
y_eq=y_eq,
z_eq=z_eq,
range_u_min=u_min,
range_u_max=u_max,
range_v_min=v_min,
range_v_max=v_max,
)
ob = context.object
ob.name = ob.data.name = "PovParametric"
ob.pov.u_min = u_min
ob.pov.u_max = u_max
ob.pov.v_min = v_min
ob.pov.v_max = v_max
ob.pov.x_eq = x_eq
ob.pov.y_eq = y_eq
ob.pov.z_eq = z_eq
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
ob.data.auto_smooth_angle = 0.6
bpy.ops.object.shade_smooth()
ob.pov.object_as = "PARAMETRIC"
ob.update_tag() # as prop set via python not updated in depsgraph
return{'FINISHED'}
class POV_OT_parametric_add(Operator):
"""Add the representation of POV parametric surfaces using pov_parametric_define() function."""
bl_idname = "pov.addparametric"
bl_label = "Parametric"
bl_description = "Add Paramertic"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
# Keep in sync within model_properties.py section Parametric primitive
# as this allows interactive update
u_min: FloatProperty(name="U Min", description="", default=0.0)
v_min: FloatProperty(name="V Min", description="", default=0.0)
u_max: FloatProperty(name="U Max", description="", default=6.28)
v_max: FloatProperty(name="V Max", description="", default=12.57)
x_eq: StringProperty(maxlen=1024, default="cos(v)*(1+cos(u))*sin(v/8)")
y_eq: StringProperty(maxlen=1024, default="sin(u)*sin(v/8)+cos(v/8)*1.5")
z_eq: StringProperty(maxlen=1024, default="sin(v)*(1+cos(u))*sin(v/8)")
def execute(self, context):
props = self.properties
u_min = props.u_min
v_min = props.v_min
u_max = props.u_max
v_max = props.v_max
x_eq = props.x_eq
y_eq = props.y_eq
z_eq = props.z_eq
try:
pov_parametric_define(context, self, None)
self.report(
{"INFO"},
"This native POV-Ray primitive " "won't have any vertex to show in edit mode",
)
except AttributeError:
self.report({"INFO"}, "Please enable Add Mesh: Extra Objects addon")
return {"FINISHED"}
class POV_OT_parametric_update(Operator):
"""Update the representation of POV parametric surfaces.
Delete its previous proxy geometry and rerun pov_parametric_define() function
with the new parameters"""
bl_idname = "pov.parametric_update"
bl_label = "Update"
bl_description = "Update parametric object"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
@classmethod
def poll(cls, context):
engine = context.scene.render.engine
ob = context.object
return ob and ob.data and ob.type == "MESH" and engine in cls.COMPAT_ENGINES
def execute(self, context):
pov_parametric_define(context, None, context.object)
return {"FINISHED"}
# -----------------------------------------------------------------------------
class POV_OT_polygon_to_circle_add(Operator):
"""Add the proxy mesh for POV Polygon to circle lofting macro"""
bl_idname = "pov.addpolygontocircle"
bl_label = "Polygon To Circle Blending"
bl_description = "Add Polygon To Circle Blending Surface"
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {"POVRAY_RENDER"}
# Keep in sync within model_properties.py section PolygonToCircle properties
# as this allows interactive update
polytocircle_resolution: IntProperty(
name="Resolution", description="", default=3, min=0, max=256
)
polytocircle_ngon: IntProperty(name="NGon", description="", min=3, max=64, default=5)
polytocircle_ngonR: FloatProperty(name="NGon Radius", description="", default=0.3)
polytocircle_circleR: FloatProperty(name="Circle Radius", description="", default=1.0)
def execute(self, context):
props = self.properties
ngon = props.polytocircle_ngon
ngonR = props.polytocircle_ngonR
circleR = props.polytocircle_circleR
resolution = props.polytocircle_resolution
# layers = 20*[False]
# layers[0] = True
bpy.ops.mesh.primitive_circle_add(
vertices=ngon, radius=ngonR, fill_type="NGON", enter_editmode=True
)
bpy.ops.transform.translate(value=(0, 0, 1))
bpy.ops.mesh.subdivide(number_cuts=resolution)
numCircleVerts = ngon + (ngon * resolution)
bpy.ops.mesh.select_all(action="DESELECT")
bpy.ops.mesh.primitive_circle_add(
vertices=numCircleVerts, radius=circleR, fill_type="NGON", enter_editmode=True
)
bpy.ops.transform.translate(value=(0, 0, -1))
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.bridge_edge_loops()
if ngon < 5:
bpy.ops.mesh.select_all(action="DESELECT")
bpy.ops.mesh.primitive_circle_add(
vertices=ngon, radius=ngonR, fill_type="TRIFAN", enter_editmode=True
)
bpy.ops.transform.translate(value=(0, 0, 1))
bpy.ops.mesh.select_all(action="SELECT")
bpy.ops.mesh.remove_doubles()
bpy.ops.object.mode_set(mode="OBJECT")
ob = context.object
ob.name = "Polygon_To_Circle"
ob.pov.ngon = ngon
ob.pov.ngonR = ngonR
ob.pov.circleR = circleR
bpy.ops.object.mode_set(mode="EDIT")
bpy.ops.mesh.hide(unselected=False)
bpy.ops.object.mode_set(mode="OBJECT")
#ob.data.auto_smooth_angle = 0.1
#bpy.ops.object.shade_smooth()
ob.pov.object_as = "POLYCIRCLE"
ob.update_tag() # as prop set via python not updated in depsgraph
return {"FINISHED"}
classes = (
POV_OT_lathe_add,
POV_OT_superellipsoid_add,
POV_OT_superellipsoid_update,
POV_OT_supertorus_add,
POV_OT_supertorus_update,
POV_OT_loft_add,
POV_OT_isosurface_add,
POV_OT_isosurface_update,
POV_OT_isosurface_box_add,
POV_OT_isosurface_sphere_add,
POV_OT_sphere_sweep_add,
POV_OT_blobsphere_add,
POV_OT_blobcapsule_add,
POV_OT_blobplane_add,
POV_OT_blobellipsoid_add,
POV_OT_blobcube_add,
POV_OT_height_field_add,
POV_OT_parametric_add,
POV_OT_parametric_update,
POV_OT_polygon_to_circle_add,
)
def register():
for cls in classes:
register_class(cls)
def unregister():
for cls in reversed(classes):
unregister_class(cls)
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