# SPDX-License-Identifier: GPL-2.0-or-later
# <pep8 compliant>
"""Translate to POV the control point compound geometries.
Such as polygon meshes or curve based shapes.
"""
# --------
# -- Faster mesh export ...one day
# import numpy as np
# --------
import bpy
from . import texturing # for how textures influence shaders
from . import model_poly_topology
# from .texturing import local_material_names
from .scenography import export_smoke
def matrix_as_pov_string(matrix):
"""Translate some transform matrix from Blender UI
to POV syntax and return that string"""
return (
"matrix <"
"%.6f, %.6f, %.6f, "
"%.6f, %.6f, %.6f, "
"%.6f, %.6f, %.6f, "
"%.6f, %.6f, %.6f"
">\n"
% (
matrix[0][0],
matrix[1][0],
matrix[2][0],
matrix[0][1],
matrix[1][1],
matrix[2][1],
matrix[0][2],
matrix[1][2],
matrix[2][2],
matrix[0][3],
matrix[1][3],
matrix[2][3],
)
)
# objectNames = {}
DEF_OBJ_NAME = "Default"
def objects_loop(
file,
scene,
sel,
csg,
material_names_dictionary,
unpacked_images,
tab_level,
tab_write,
info_callback,
):
# global preview_dir
# global smoke_path
# global global_matrix
# global comments
# global tab
"""write all meshes as POV mesh2{} syntax to exported file"""
# # some numpy functions to speed up mesh export NOT IN USE YET
# # Current 2.93 beta numpy linking has troubles so definitions commented off for now
# # TODO: also write a numpy function to read matrices at object level?
# # feed below with mesh object.data, but only after doing data.calc_loop_triangles()
# def read_verts_co(self, mesh):
# #'float64' would be a slower 64-bit floating-point number numpy datatype
# # using 'float32' vert coordinates for now until any issue is reported
# mverts_co = np.zeros((len(mesh.vertices) * 3), dtype=np.float32)
# mesh.vertices.foreach_get("co", mverts_co)
# return np.reshape(mverts_co, (len(mesh.vertices), 3))
# def read_verts_idx(self, mesh):
# mverts_idx = np.zeros((len(mesh.vertices)), dtype=np.int64)
# mesh.vertices.foreach_get("index", mverts_idx)
# return np.reshape(mverts_idx, (len(mesh.vertices), 1))
# def read_verts_norms(self, mesh):
# #'float64' would be a slower 64-bit floating-point number numpy datatype
# # using less accurate 'float16' normals for now until any issue is reported
# mverts_no = np.zeros((len(mesh.vertices) * 3), dtype=np.float16)
# mesh.vertices.foreach_get("normal", mverts_no)
# return np.reshape(mverts_no, (len(mesh.vertices), 3))
# def read_faces_idx(self, mesh):
# mfaces_idx = np.zeros((len(mesh.loop_triangles)), dtype=np.int64)
# mesh.loop_triangles.foreach_get("index", mfaces_idx)
# return np.reshape(mfaces_idx, (len(mesh.loop_triangles), 1))
# def read_faces_verts_indices(self, mesh):
# mfaces_verts_idx = np.zeros((len(mesh.loop_triangles) * 3), dtype=np.int64)
# mesh.loop_triangles.foreach_get("vertices", mfaces_verts_idx)
# return np.reshape(mfaces_verts_idx, (len(mesh.loop_triangles), 3))
# # Why is below different from vertex indices?
# def read_faces_verts_loops(self, mesh):
# mfaces_verts_loops = np.zeros((len(mesh.loop_triangles) * 3), dtype=np.int64)
# mesh.loop_triangles.foreach_get("loops", mfaces_verts_loops)
# return np.reshape(mfaces_verts_loops, (len(mesh.loop_triangles), 3))
# def read_faces_norms(self, mesh):
# #'float64' would be a slower 64-bit floating-point number numpy datatype
# # using less accurate 'float16' normals for now until any issue is reported
# mfaces_no = np.zeros((len(mesh.loop_triangles) * 3), dtype=np.float16)
# mesh.loop_triangles.foreach_get("normal", mfaces_no)
# return np.reshape(mfaces_no, (len(mesh.loop_triangles), 3))
# def read_faces_smooth(self, mesh):
# mfaces_smth = np.zeros((len(mesh.loop_triangles) * 1), dtype=np.bool)
# mesh.loop_triangles.foreach_get("use_smooth", mfaces_smth)
# return np.reshape(mfaces_smth, (len(mesh.loop_triangles), 1))
# def read_faces_material_indices(self, mesh):
# mfaces_mats_idx = np.zeros((len(mesh.loop_triangles)), dtype=np.int16)
# mesh.loop_triangles.foreach_get("material_index", mfaces_mats_idx)
# return np.reshape(mfaces_mats_idx, (len(mesh.loop_triangles), 1))
# obmatslist = []
# def hasUniqueMaterial():
# # Grab materials attached to object instances ...
# if hasattr(obj, 'material_slots'):
# for ms in obj.material_slots:
# if ms.material is not None and ms.link == 'OBJECT':
# if ms.material in obmatslist:
# return False
# else:
# obmatslist.append(ms.material)
# return True
# def hasObjectMaterial(obj):
# # Grab materials attached to object instances ...
# if hasattr(obj, 'material_slots'):
# for ms in obj.material_slots:
# if ms.material is not None and ms.link == 'OBJECT':
# # If there is at least one material slot linked to the object
# # and not the data (mesh), always create a new, "private" data instance.
# return True
# return False
# For objects using local material(s) only!
# This is a mapping between a tuple (dataname, material_names_dictionary, ...),
# and the POV dataname.
# As only objects using:
# * The same data.
# * EXACTLY the same materials, in EXACTLY the same sockets.
# ... can share a same instance in POV export.
from .render import (
string_strip_hyphen,
global_matrix,
tab,
comments,
)
from .render_core import (
preview_dir,
smoke_path,
)
from .model_primitives import write_object_modifiers
from .shading import write_object_material_interior
from .scenography import image_format, img_map, img_map_transforms
linebreaksinlists = scene.pov.list_lf_enable and not scene.pov.tempfiles_enable
obmats2data = {}
def check_object_materials(obj, obj_name, dataname):
"""Compare other objects exported material slots to avoid rewriting duplicates"""
if hasattr(obj, "material_slots"):
has_local_mats = False
key = [dataname]
for ms in obj.material_slots:
if ms.material is not None:
key.append(ms.material.name)
if ms.link == "OBJECT" and not has_local_mats:
has_local_mats = True
else:
# Even if the slot is empty, it is important to grab it...
key.append("")
if has_local_mats:
# If this object uses local material(s), lets find if another object
# using the same data and exactly the same list of materials
# (in the same slots) has already been processed...
# Note that here also, we use object name as new, unique dataname for Pov.
key = tuple(key) # Lists are not hashable...
if key not in obmats2data:
obmats2data[key] = obj_name
return obmats2data[key]
return None
data_ref = {}
def store(scene, ob, name, dataname, matrix):
# The Object needs to be written at least once but if its data is
# already in data_ref this has already been done.
# This func returns the "povray" name of the data, or None
# if no writing is needed.
if ob.is_modified(scene, "RENDER"):
# Data modified.
# Create unique entry in data_ref by using object name
# (always unique in Blender) as data name.
data_ref[name] = [(name, matrix_as_pov_string(matrix))]
return name
# Here, we replace dataname by the value returned by check_object_materials, only if
# it is not evaluated to False (i.e. only if the object uses some local material(s)).
dataname = check_object_materials(ob, name, dataname) or dataname
if dataname in data_ref:
# Data already known, just add the object instance.
data_ref[dataname].append((name, matrix_as_pov_string(matrix)))
# No need to write data
return None
# Else (no return yet): Data not yet processed, create a new entry in data_ref.
data_ref[dataname] = [(name, matrix_as_pov_string(matrix))]
return dataname
ob_num = 0
depsgraph = bpy.context.evaluated_depsgraph_get()
for ob in sel:
# Using depsgraph
ob = bpy.data.objects[ob.name].evaluated_get(depsgraph)
# subtract original from the count of their instances as were not counted before 2.8
if (ob.is_instancer and ob.original != ob):
continue
ob_num += 1
# XXX I moved all those checks here, as there is no need to compute names
# for object we won't export here!
if ob.type in {
"LIGHT",
"CAMERA", # 'EMPTY', #empties can bear dupligroups
"META",
"ARMATURE",
"LATTICE",
}:
continue
fluid_found = False
for mod in ob.modifiers:
if mod and hasattr(mod, "fluid_type"):
fluid_found = True
if mod.fluid_type == "DOMAIN":
if mod.domain_settings.domain_type == "GAS":
export_smoke(file, ob.name, smoke_path, comments, global_matrix)
break # don't render domain mesh, skip to next object.
if mod.fluid_type == "FLOW": # The domain contains all the smoke. so that's it.
if mod.flow_settings.flow_type == "SMOKE": # Check how liquids behave
break # don't render smoke flow emitter mesh either, skip to next object.
if fluid_found:
return
# No fluid found
if hasattr(ob, "particle_systems"):
# Importing function Export Hair
# here rather than at the top recommended for addons startup footprint
from .particles import export_hair
for p_sys in ob.particle_systems:
for particle_mod in [
m
for m in ob.modifiers
if (m is not None) and (m.type == "PARTICLE_SYSTEM")
]:
if (
(p_sys.settings.render_type == "PATH")
and particle_mod.show_render
and (p_sys.name == particle_mod.particle_system.name)
):
export_hair(file, ob, particle_mod, p_sys, global_matrix)
if not ob.show_instancer_for_render:
continue # don't render emitter mesh, skip to next object.
# ------------------------------------------------
# Generating a name for object just like materials to be able to use it
# (baking for now or anything else).
# XXX I don't understand that if we are here, sel if a non-empty iterable,
# so this condition is always True, IMO -- mont29
# EMPTY type objects treated a little further below -- MR
# modified elif to if below as non EMPTY objects can also be instancers
if ob.is_instancer:
if ob.instance_type == "COLLECTION":
name_orig = "OB" + ob.name
dataname_orig = "DATA" + ob.instance_collection.name
else:
# hoping only dupligroups have several source datablocks
# ob_dupli_list_create(scene) #deprecated in 2.8
for eachduplicate in depsgraph.object_instances:
# Real dupli instance filtered because
# original included in list since 2.8
if eachduplicate.is_instance:
dataname_orig = "DATA" + eachduplicate.object.name
# obj.dupli_list_clear() #just don't store any reference to instance since 2.8
elif ob.data: # not an EMPTY type object
name_orig = "OB" + ob.name
dataname_orig = "DATA" + ob.data.name
elif ob.type == "EMPTY":
name_orig = "OB" + ob.name
dataname_orig = "DATA" + ob.name
else:
name_orig = DEF_OBJ_NAME
dataname_orig = DEF_OBJ_NAME
name = string_strip_hyphen(bpy.path.clean_name(name_orig))
dataname = string_strip_hyphen(bpy.path.clean_name(dataname_orig))
# for slot in obj.material_slots:
# if slot.material is not None and slot.link == 'OBJECT':
# obmaterial = slot.material
# ------------------------------------------------
if info_callback:
info_callback("Object %2.d of %2.d (%s)" % (ob_num, len(sel), ob.name))
me = ob.data
matrix = global_matrix @ ob.matrix_world
povdataname = store(scene, ob, name, dataname, matrix)
if povdataname is None:
print("This is an instance of " + name)
continue
print("Writing Down First Occurrence of " + name)
# ------------ Mesh Primitives ------------ #
# special export_curves() function takes care of writing
# lathe, sphere_sweep, birail, and loft except with modifiers
# converted to mesh
if not ob.is_modified(scene, "RENDER"):
if ob.type == "CURVE" and (
ob.pov.curveshape in {"lathe", "sphere_sweep", "loft"}
):
continue # Don't render proxy mesh, skip to next object
# pov_mat_name = "Default_texture" # Not used...remove?
# Implicit else-if (as not skipped by previous "continue")
# which itself has no "continue" (to combine custom pov code)?, so Keep this last.
# For originals, but not their instances, attempt to export mesh:
if not ob.is_instancer:
# except duplis which should be instances groups for now but all duplis later
if ob.type == "EMPTY":
# XXX Should we only write this once and instantiate the same for every
# empty in the final matrix writing, or even no matrix and just a comment
# with empty object transforms ?
tab_write(file, "\n//dummy sphere to represent Empty location\n")
tab_write(
file,
"#declare %s =sphere {<0, 0, 0>,0 pigment{rgbt 1} no_image no_reflection no_radiosity photons{pass_through collect off} hollow}\n"
% povdataname,
)
continue # Don't render empty object but this is later addition, watch it.
if mesh_eval_exported := model_poly_topology.export_mesh(file, ob, povdataname,
material_names_dictionary,
unpacked_images,
tab_level, tab_write, linebreaksinlists):
pass # XXX Caution pass may write both proxy mesh and primitive, so propagate a test
# for non mesh_eval_exported or switch back other primitives before meshes
else:
continue
# ------------ Povray Primitives ------------ #
# Also implicit elif (continue) clauses and sorted after mesh
# as less often used.
if ob.pov.object_as == "PLANE":
tab_write(file, "#declare %s = plane{ <0,0,1>,0\n" % povdataname)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
# tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "SPHERE":
tab_write(
file,
"#declare %s = sphere { 0,%6f\n" % (povdataname, ob.pov.sphere_radius),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
# tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "BOX":
tab_write(file, "#declare %s = box { -1,1\n" % povdataname)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
# tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "CONE":
br = ob.pov.cone_base_radius
cr = ob.pov.cone_cap_radius
bz = ob.pov.cone_base_z
cz = ob.pov.cone_cap_z
tab_write(
file,
"#declare %s = cone { <0,0,%.4f>,%.4f,<0,0,%.4f>,%.4f\n"
% (povdataname, bz, br, cz, cr),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
# tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "CYLINDER":
r = ob.pov.cylinder_radius
x2 = ob.pov.cylinder_location_cap[0]
y2 = ob.pov.cylinder_location_cap[1]
z2 = ob.pov.cylinder_location_cap[2]
tab_write(
file,
"#declare %s = cylinder { <0,0,0>,<%6f,%6f,%6f>,%6f\n"
% (povdataname, x2, y2, z2, r),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
# cylinders written at origin, translated below
write_object_modifiers(ob, file)
# tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "HEIGHT_FIELD":
data = ""
filename = ob.pov.hf_filename
data += '"%s"' % filename
gamma = " gamma %.4f" % ob.pov.hf_gamma
data += gamma
if ob.pov.hf_premultiplied:
data += " premultiplied on"
if ob.pov.hf_smooth:
data += " smooth"
if ob.pov.hf_water > 0:
data += " water_level %.4f" % ob.pov.hf_water
# hierarchy = obj.pov.hf_hierarchy
tab_write(file, "#declare %s = height_field { %s\n" % (povdataname, data))
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
tab_write(file, "rotate x*90\n")
tab_write(file, "translate <-0.5,0.5,0>\n")
tab_write(file, "scale <0,-1,0>\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "TORUS":
tab_write(
file,
"#declare %s = torus { %.4f,%.4f\n"
% (
povdataname,
ob.pov.torus_major_radius,
ob.pov.torus_minor_radius,
),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "PARAMETRIC":
tab_write(file, "#declare %s = parametric {\n" % povdataname)
tab_write(file, "function { %s }\n" % ob.pov.x_eq)
tab_write(file, "function { %s }\n" % ob.pov.y_eq)
tab_write(file, "function { %s }\n" % ob.pov.z_eq)
tab_write(
file,
"<%.4f,%.4f>, <%.4f,%.4f>\n"
% (ob.pov.u_min, ob.pov.v_min, ob.pov.u_max, ob.pov.v_max),
)
# Previous to 3.8 default max_gradient 1.0 was too slow
tab_write(file, "max_gradient 0.001\n")
if ob.pov.contained_by == "sphere":
tab_write(file, "contained_by { sphere{0, 2} }\n")
else:
tab_write(file, "contained_by { box{-2, 2} }\n")
tab_write(file, "max_gradient %.6f\n" % ob.pov.max_gradient)
tab_write(file, "accuracy %.6f\n" % ob.pov.accuracy)
tab_write(file, "precompute 10 x,y,z\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "ISOSURFACE_NODE":
tab_write(file, "#declare %s = isosurface{ \n" % povdataname)
tab_write(file, "function{ \n")
text_name = ob.pov.iso_function_text
if text_name:
node_tree = bpy.context.scene.node_tree
for node in node_tree.nodes:
if node.bl_idname == "IsoPropsNode" and node.label == ob.name:
for inp in node.inputs:
if inp:
tab_write(
file,
"#declare %s = %.6g;\n" % (inp.name, inp.default_value),
)
text = bpy.data.texts[text_name]
for line in text.lines:
split = line.body.split()
if split[0] != "#declare":
tab_write(file, "%s\n" % line.body)
else:
tab_write(file, "abs(x) - 2 + y")
tab_write(file, "}\n")
tab_write(file, "threshold %.6g\n" % ob.pov.threshold)
tab_write(file, "max_gradient %.6g\n" % ob.pov.max_gradient)
tab_write(file, "accuracy %.6g\n" % ob.pov.accuracy)
tab_write(file, "contained_by { ")
if ob.pov.contained_by == "sphere":
tab_write(file, "sphere {0,%.6g}}\n" % ob.pov.container_scale)
else:
tab_write(
file,
"box {-%.6g,%.6g}}\n"
% (ob.pov.container_scale, ob.pov.container_scale),
)
if ob.pov.all_intersections:
tab_write(file, "all_intersections\n")
else:
if ob.pov.max_trace > 1:
tab_write(file, "max_trace %.6g\n" % ob.pov.max_trace)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
tab_write(file, "scale %.6g\n" % (1 / ob.pov.container_scale))
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "ISOSURFACE_VIEW":
simple_isosurface_function = ob.pov.isosurface_eq
if simple_isosurface_function:
tab_write(file, "#declare %s = isosurface{ \n" % povdataname)
tab_write(file, "function{ \n")
tab_write(file, simple_isosurface_function)
tab_write(file, "}\n")
tab_write(file, "threshold %.6g\n" % ob.pov.threshold)
tab_write(file, "max_gradient %.6g\n" % ob.pov.max_gradient)
tab_write(file, "accuracy %.6g\n" % ob.pov.accuracy)
tab_write(file, "contained_by { ")
if ob.pov.contained_by == "sphere":
tab_write(file, "sphere {0,%.6g}}\n" % ob.pov.container_scale)
else:
tab_write(
file,
"box {-%.6g,%.6g}}\n"
% (ob.pov.container_scale, ob.pov.container_scale),
)
if ob.pov.all_intersections:
tab_write(file, "all_intersections\n")
else:
if ob.pov.max_trace > 1:
tab_write(file, "max_trace %.6g\n" % ob.pov.max_trace)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
tab_write(file, "scale %.6g\n" % (1 / ob.pov.container_scale))
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "SUPERELLIPSOID":
tab_write(
file,
"#declare %s = superellipsoid{ <%.4f,%.4f>\n"
% (povdataname, ob.pov.se_n2, ob.pov.se_n1),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "SUPERTORUS":
rad_maj = ob.pov.st_major_radius
rad_min = ob.pov.st_minor_radius
ring = ob.pov.st_ring
cross = ob.pov.st_cross
accuracy = ob.pov.st_accuracy
gradient = ob.pov.st_max_gradient
# --- Inline Supertorus macro
file.write(
"#macro Supertorus(RMj, RMn, MajorControl, MinorControl, Accuracy, MaxGradient)\n"
)
file.write(" #local CP = 2/MinorControl;\n")
file.write(" #local RP = 2/MajorControl;\n")
file.write(" isosurface {\n")
file.write(
" function { pow( pow(abs(pow(pow(abs(x),RP) + pow(abs(z),RP), 1/RP) - RMj),CP) + pow(abs(y),CP) ,1/CP) - RMn }\n"
)
file.write(" threshold 0\n")
file.write(
" contained_by {box {<-RMj-RMn,-RMn,-RMj-RMn>, < RMj+RMn, RMn, RMj+RMn>}}\n"
)
file.write(" #if(MaxGradient >= 1)\n")
file.write(" max_gradient MaxGradient\n")
file.write(" #else\n")
file.write(" evaluate 1, 10, 0.1\n")
file.write(" #end\n")
file.write(" accuracy Accuracy\n")
file.write(" }\n")
file.write("#end\n")
# ---
tab_write(
file,
"#declare %s = object{ Supertorus( %.4g,%.4g,%.4g,%.4g,%.4g,%.4g)\n"
% (
povdataname,
rad_maj,
rad_min,
ring,
cross,
accuracy,
gradient,
),
)
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(obj.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(me)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
write_object_modifiers(ob, file)
tab_write(file, "rotate x*90\n")
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if ob.pov.object_as == "POLYCIRCLE":
# TODO write below macro Once:
# if write_polytocircle_macro_once == 0:
file.write("/****************************\n")
file.write("This macro was written by 'And'.\n")
file.write("Link:(http://news.povray.org/povray.binaries.scene-files/)\n")
file.write("****************************/\n")
file.write("//from math.inc:\n")
file.write("#macro VPerp_Adjust(V, Axis)\n")
file.write(" vnormalize(vcross(vcross(Axis, V), Axis))\n")
file.write("#end\n")
file.write("//Then for the actual macro\n")
file.write("#macro Shape_Slice_Plane_2P_1V(point1, point2, clip_direct)\n")
file.write("#local p1 = point1 + <0,0,0>;\n")
file.write("#local p2 = point2 + <0,0,0>;\n")
file.write("#local clip_v = vnormalize(clip_direct + <0,0,0>);\n")
file.write("#local direct_v1 = vnormalize(p2 - p1);\n")
file.write("#if(vdot(direct_v1, clip_v) = 1)\n")
file.write(' #error "Shape_Slice_Plane_2P_1V error: Can\'t decide plane"\n')
file.write("#end\n\n")
file.write(
"#local norm = -vnormalize(clip_v - direct_v1*vdot(direct_v1,clip_v));\n"
)
file.write("#local d = vdot(norm, p1);\n")
file.write("plane{\n")
file.write("norm, d\n")
file.write("}\n")
file.write("#end\n\n")
file.write("//polygon to circle\n")
file.write(
"#macro Shape_Polygon_To_Circle_Blending("
"_polygon_n, _side_face, "
"_polygon_circumscribed_radius, "
"_circle_radius, "
"_height)\n"
)
file.write("#local n = int(_polygon_n);\n")
file.write("#if(n < 3)\n")
file.write(" #error\n")
file.write("#end\n\n")
file.write("#local front_v = VPerp_Adjust(_side_face, z);\n")
file.write("#if(vdot(front_v, x) >= 0)\n")
file.write(" #local face_ang = acos(vdot(-y, front_v));\n")
file.write("#else\n")
file.write(" #local face_ang = -acos(vdot(-y, front_v));\n")
file.write("#end\n")
file.write("#local polyg_ext_ang = 2*pi/n;\n")
file.write("#local polyg_outer_r = _polygon_circumscribed_radius;\n")
file.write("#local polyg_inner_r = polyg_outer_r*cos(polyg_ext_ang/2);\n")
file.write("#local cycle_r = _circle_radius;\n")
file.write("#local h = _height;\n")
file.write("#if(polyg_outer_r < 0 | cycle_r < 0 | h <= 0)\n")
file.write(' #error "error: each side length must be positive"\n')
file.write("#end\n\n")
file.write("#local multi = 1000;\n")
file.write("#local poly_obj =\n")
file.write("polynomial{\n")
file.write("4,\n")
file.write("xyz(0,2,2): multi*1,\n")
file.write("xyz(2,0,1): multi*2*h,\n")
file.write("xyz(1,0,2): multi*2*(polyg_inner_r-cycle_r),\n")
file.write("xyz(2,0,0): multi*(-h*h),\n")
file.write("xyz(0,0,2): multi*(-pow(cycle_r - polyg_inner_r, 2)),\n")
file.write("xyz(1,0,1): multi*2*h*(-2*polyg_inner_r + cycle_r),\n")
file.write("xyz(1,0,0): multi*2*h*h*polyg_inner_r,\n")
file.write("xyz(0,0,1): multi*2*h*polyg_inner_r*(polyg_inner_r - cycle_r),\n")
file.write("xyz(0,0,0): multi*(-pow(polyg_inner_r*h, 2))\n")
file.write("sturm\n")
file.write("}\n\n")
file.write("#local mockup1 =\n")
file.write("difference{\n")
file.write(" cylinder{\n")
file.write(" <0,0,0.0>,<0,0,h>, max(polyg_outer_r, cycle_r)\n")
file.write(" }\n\n")
file.write(" #for(i, 0, n-1)\n")
file.write(" object{\n")
file.write(" poly_obj\n")
file.write(" inverse\n")
file.write(" rotate <0, 0, -90 + degrees(polyg_ext_ang*i)>\n")
file.write(" }\n")
file.write(" object{\n")
file.write(
" Shape_Slice_Plane_2P_1V(<polyg_inner_r,0,0>,<cycle_r,0,h>,x)\n"
)
file.write(" rotate <0, 0, -90 + degrees(polyg_ext_ang*i)>\n")
file.write(" }\n")
file.write(" #end\n")
file.write("}\n\n")
file.write("object{\n")
file.write("mockup1\n")
file.write("rotate <0, 0, degrees(face_ang)>\n")
file.write("}\n")
file.write("#end\n")
# Use the macro
ngon = ob.pov.polytocircle_ngon
ngonR = ob.pov.polytocircle_ngonR
circleR = ob.pov.polytocircle_circleR
tab_write(
file,
"#declare %s = object { Shape_Polygon_To_Circle_Blending("
"%s, z, %.4f, %.4f, 2) rotate x*180 translate z*1\n"
% (povdataname, ngon, ngonR, circleR),
)
tab_write(file, "}\n")
continue # Don't render proxy mesh, skip to next object
if csg:
# fluid_found early return no longer runs this
# todo maybe make a function to run in that other branch
duplidata_ref = []
_dupnames_seen = {} # avoid duplicate output during introspection
for ob in sel:
# matrix = global_matrix @ obj.matrix_world
if ob.is_instancer:
tab_write(file, "\n//--DupliObjects in %s--\n\n" % ob.name)
# obj.dupli_list_create(scene) #deprecated in 2.8
dup = ""
if ob.is_modified(scene, "RENDER"):
# modified object always unique so using object name rather than data name
dup = "#declare OB%s = union{\n" % (
string_strip_hyphen(bpy.path.clean_name(ob.name))
)
else:
dup = "#declare DATA%s = union{\n" % (
string_strip_hyphen(bpy.path.clean_name(ob.name))
)
for eachduplicate in depsgraph.object_instances:
if (
eachduplicate.is_instance
): # Real dupli instance filtered because original included in list since 2.8
_dupname = eachduplicate.object.name
_dupobj = bpy.data.objects[_dupname]
# BEGIN introspection for troubleshooting purposes
if "name" not in dir(_dupobj.data):
if _dupname not in _dupnames_seen:
print(
"WARNING: bpy.data.objects[%s].data (of type %s) has no 'name' attribute"
% (_dupname, type(_dupobj.data))
)
for _thing in dir(_dupobj):
print(
"|| %s.%s = %s"
% (_dupname, _thing, getattr(_dupobj, _thing))
)
_dupnames_seen[_dupname] = 1
print("''=> Unparseable objects so far: %s" % _dupnames_seen)
else:
_dupnames_seen[_dupname] += 1
continue # don't try to parse data objects with no name attribute
# END introspection for troubleshooting purposes
duplidataname = "OB" + string_strip_hyphen(
bpy.path.clean_name(_dupobj.data.name)
)
dupmatrix = (
eachduplicate.matrix_world.copy()
) # has to be copied to not store instance since 2.8
dup += "\tobject {\n\t\tDATA%s\n\t\t%s\t}\n" % (
string_strip_hyphen(bpy.path.clean_name(_dupobj.data.name)),
matrix_as_pov_string(ob.matrix_world.inverted() @ dupmatrix),
)
# add object to a list so that it is not rendered for some instance_types
if (
ob.instance_type != "COLLECTION"
and duplidataname not in duplidata_ref
):
duplidata_ref.append(
duplidataname,
) # older key [string_strip_hyphen(bpy.path.clean_name("OB"+obj.name))]
dup += "}\n"
# obj.dupli_list_clear()# just do not store any reference to instance since 2.8
tab_write(file, dup)
else:
continue
if _dupnames_seen:
print("WARNING: Unparseable objects in current .blend file:\n''--> %s" % _dupnames_seen)
if duplidata_ref:
print("duplidata_ref = %s" % duplidata_ref)
for data_name, inst in data_ref.items():
for ob_name, matrix_str in inst:
if ob_name not in duplidata_ref: # .items() for a dictionary
tab_write(file, "\n//----Blender Object Name: %s----\n" %
ob_name.removeprefix("OB"))
if ob.pov.object_as == "":
tab_write(file, "object { \n")
tab_write(file, "%s\n" % data_name)
tab_write(file, "%s\n" % matrix_str)
tab_write(file, "}\n")
else:
no_boolean = True
for mod in ob.modifiers:
if mod.type == "BOOLEAN":
operation = None
no_boolean = False
if mod.operation == "INTERSECT":
operation = "intersection"
else:
operation = mod.operation.lower()
mod_ob_name = string_strip_hyphen(
bpy.path.clean_name(mod.object.name)
)
mod_matrix = global_matrix @ mod.object.matrix_world
mod_ob_matrix = matrix_as_pov_string(mod_matrix)
tab_write(file, "%s { \n" % operation)
tab_write(file, "object { \n")
tab_write(file, "%s\n" % data_name)
tab_write(file, "%s\n" % matrix_str)
tab_write(file, "}\n")
tab_write(file, "object { \n")
tab_write(file, "%s\n" % ("DATA" + mod_ob_name))
tab_write(file, "%s\n" % mod_ob_matrix)
tab_write(file, "}\n")
tab_write(file, "}\n")
break
if no_boolean:
tab_write(file, "object { \n")
tab_write(file, "%s\n" % data_name)
tab_write(file, "%s\n" % matrix_str)
tab_write(file, "}\n")