diff options
Diffstat (limited to 'render_povray/model_all.py')
-rw-r--r-- | render_povray/model_all.py | 915 |
1 files changed, 915 insertions, 0 deletions
diff --git a/render_povray/model_all.py b/render_povray/model_all.py new file mode 100644 index 00000000..412894a4 --- /dev/null +++ b/render_povray/model_all.py @@ -0,0 +1,915 @@ +# 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") |