-
Campbell Barton authored
This is no longer necessary, see: T98554.
Campbell Barton authoredThis is no longer necessary, see: T98554.
model_curve_topology.py 48.49 KiB
# SPDX-License-Identifier: GPL-2.0-or-later
"""Translate to POV the control point compounded geometries like polygon
meshes or curve based shapes.
"""
import bpy
# -------- LOFT, ETC.
def export_curves(file, ob, tab_write):
"""write all curves based POV primitives to exported file
Args:
file: The POV file being written
ob: The current curve object to export from Blender
string_strip_hyphen: Function to clean up names
tab_write: Function to write to POV file
"""
from .shading import write_object_material_interior
from .render import string_strip_hyphen
# name_orig = "OB" + ob.name # XXX Unused, check instantiation
dataname_orig = "DATA" + ob.data.name
# name = string_strip_hyphen(bpy.path.clean_name(name_orig)) # XXX Unused, check instantiation
dataname = string_strip_hyphen(bpy.path.clean_name(dataname_orig))
# matrix = global_matrix @ ob.matrix_world # XXX Unused, check instantiation
bezier_sweep = False
if ob.pov.curveshape == "sphere_sweep":
# TODO: Check radius ; shorten lines, may use tab_write() ? > fstrings since py 2.9
# inlined spheresweep macro, which itself calls Shapes.inc:
file.write(' #include "shapes.inc"\n')
file.write(
" #macro Shape_Bezierpoints_Sphere_Sweep(_merge_shape, _resolution, _points_array, _radius_array)\n"
)
file.write(" //input adjusting and inspection\n")
file.write(" #if(_resolution <= 1)\n")
file.write(" #local res = 1;\n")
file.write(" #else\n")
file.write(" #local res = int(_resolution);\n")
file.write(" #end\n")
file.write(" #if(dimensions(_points_array) != 1 | dimensions(_radius_array) != 1)\n")
file.write(' #error ""\n')
file.write(
" #elseif(div(dimension_size(_points_array,1),4) - dimension_size(_points_array,1)/4 != 0)\n"
)
file.write(' #error ""\n')
file.write(
" #elseif(dimension_size(_points_array,1) != dimension_size(_radius_array,1))\n"
)
file.write(' #error ""\n')
file.write(" #else\n")
file.write(" #local n_of_seg = div(dimension_size(_points_array,1), 4);\n")
file.write(" #local ctrl_pts_array = array[n_of_seg]\n")
file.write(" #local ctrl_rs_array = array[n_of_seg]\n")
file.write(" #for(i, 0, n_of_seg-1)\n")
file.write(
" #local ctrl_pts_array[i] = array[4] {_points_array[4*i], _points_array[4*i+1], _points_array[4*i+2], _points_array[4*i+3]}\n"
)
file.write(
" #local ctrl_rs_array[i] = array[4] {abs(_radius_array[4*i]), abs(_radius_array[4*i+1]), abs(_radius_array[4*i+2]), abs(_radius_array[4*i+3])}\n"
)
file.write(" #end\n")
file.write(" #end\n")
file.write(" //drawing\n")
file.write(" #local mockup1 =\n")
file.write(" #if(_merge_shape) merge{ #else union{ #end\n")
file.write(" #for(i, 0, n_of_seg-1)\n")
file.write(" #local has_head = true;\n")
file.write(" #if(i = 0)\n")
file.write(
" #if(vlength(ctrl_pts_array[i][0]-ctrl_pts_array[n_of_seg-1][3]) = 0 & ctrl_rs_array[i][0]-ctrl_rs_array[n_of_seg-1][3] <= 0)\n"
)
file.write(" #local has_head = false;\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(
" #if(vlength(ctrl_pts_array[i][0]-ctrl_pts_array[i-1][3]) = 0 & ctrl_rs_array[i][0]-ctrl_rs_array[i-1][3] <= 0)\n"
)
file.write(" #local has_head = false;\n")
file.write(" #end\n")
file.write(" #end\n")
file.write(" #if(has_head = true)\n")
file.write(" sphere{\n")
file.write(" ctrl_pts_array[i][0], ctrl_rs_array[i][0]\n")
file.write(" }\n")
file.write(" #end\n")
file.write(" #local para_t = (1/2)/res;\n")
file.write(
" #local this_point = ctrl_pts_array[i][0]*pow(1-para_t,3) + ctrl_pts_array[i][1]*3*pow(1-para_t,2)*para_t + ctrl_pts_array[i][2]*3*(1-para_t)*pow(para_t,2) + ctrl_pts_array[i][3]*pow(para_t,3);\n"
)
file.write(
" #local this_radius = ctrl_rs_array[i][0]*pow(1-para_t,3) + ctrl_rs_array[i][1]*3*pow(1-para_t,2)*para_t + ctrl_rs_array[i][2]*3*(1-para_t)*pow(para_t,2) + ctrl_rs_array[i][3]*pow(para_t,3);\n"
)
file.write(
" #if(vlength(this_point-ctrl_pts_array[i][0]) > abs(this_radius-ctrl_rs_array[i][0]))\n"
)
file.write(" object{\n")
file.write(
" Connect_Spheres(ctrl_pts_array[i][0], ctrl_rs_array[i][0], this_point, this_radius)\n"
)
file.write(" }\n")
file.write(" #end\n")
file.write(" sphere{\n")
file.write(" this_point, this_radius\n")
file.write(" }\n")
file.write(" #for(j, 1, res-1)\n")
file.write(" #local last_point = this_point;\n")
file.write(" #local last_radius = this_radius;\n")
file.write(" #local para_t = (1/2+j)/res;\n")
file.write(
" #local this_point = ctrl_pts_array[i][0]*pow(1-para_t,3) + ctrl_pts_array[i][1]*3*pow(1-para_t,2)*para_t + ctrl_pts_array[i][2]*3*(1-para_t)*pow(para_t,2) + ctrl_pts_array[i][3]*pow(para_t,3);\n"
)
file.write(
" #local this_radius = ctrl_rs_array[i][0]*pow(1-para_t,3) + ctrl_rs_array[i][1]*3*pow(1-para_t,2)*para_t + ctrl_rs_array[i][2]*3*(1-para_t)*pow(para_t,2) + ctrl_rs_array[i][3]*pow(para_t,3);\n"
)
file.write(
" #if(vlength(this_point-last_point) > abs(this_radius-last_radius))\n"
)
file.write(" object{\n")
file.write(
" Connect_Spheres(last_point, last_radius, this_point, this_radius)\n"
)
file.write(" }\n")
file.write(" #end\n")
file.write(" sphere{\n")
file.write(" this_point, this_radius\n")
file.write(" }\n")
file.write(" #end\n")
file.write(" #local last_point = this_point;\n")
file.write(" #local last_radius = this_radius;\n")
file.write(" #local this_point = ctrl_pts_array[i][3];\n")
file.write(" #local this_radius = ctrl_rs_array[i][3];\n")
file.write(
" #if(vlength(this_point-last_point) > abs(this_radius-last_radius))\n"
)
file.write(" object{\n")
file.write(
" Connect_Spheres(last_point, last_radius, this_point, this_radius)\n"
)
file.write(" }\n")
file.write(" #end\n")
file.write(" sphere{\n")
file.write(" this_point, this_radius\n")
file.write(" }\n")
file.write(" #end\n")
file.write(" }\n")
file.write(" mockup1\n")
file.write(" #end\n")
for spl in ob.data.splines:
if spl.type == "BEZIER":
bezier_sweep = True
if ob.pov.curveshape in ("loft", "birail"):
n = 0
for spline in ob.data.splines:
n += 1
tab_write(file, "#declare %s%s=spline {\n" % (dataname, n))
tab_write(file, "cubic_spline\n")
lp = len(spline.points)
delta = 1 / lp
d = -delta
point = spline.points[lp - 1]
x, y, z, w = point.co[:]
tab_write(file, "%.6f, <%.6f,%.6f,%.6f>\n" % (d, x, y, z))
d += delta
for point in spline.points:
x, y, z, w = point.co[:]
tab_write(file, "%.6f, <%.6f,%.6f,%.6f>\n" % (d, x, y, z))
d += delta
for i in range(2):
point = spline.points[i]
x, y, z, w = point.co[:]
tab_write(file, "%.6f, <%.6f,%.6f,%.6f>\n" % (d, x, y, z))
d += delta
tab_write(file, "}\n")
if ob.pov.curveshape == "loft":
n = len(ob.data.splines)
tab_write(file, "#declare %s = array[%s]{\n" % (dataname, (n + 3)))
tab_write(file, "spline{%s%s},\n" % (dataname, n))
for i in range(n):
tab_write(file, "spline{%s%s},\n" % (dataname, (i + 1)))
tab_write(file, "spline{%s1},\n" % dataname)
tab_write(file, "spline{%s2}\n" % dataname)
tab_write(file, "}\n")
# Use some of the Meshmaker.inc macro, here inlined
file.write("#macro CheckFileName(FileName)\n")
file.write(" #local Len=strlen(FileName);\n")
file.write(" #if(Len>0)\n")
file.write(" #if(file_exists(FileName))\n")
file.write(" #if(Len>=4)\n")
file.write(" #local Ext=strlwr(substr(FileName,Len-3,4))\n")
file.write(
' #if (strcmp(Ext,".obj")=0 | strcmp(Ext,".pcm")=0 | strcmp(Ext,".arr")=0)\n'
)
file.write(" #local Return=99;\n")
file.write(" #else\n")
file.write(" #local Return=0;\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(" #local Return=0;\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(" #if(Len>=4)\n")
file.write(" #local Ext=strlwr(substr(FileName,Len-3,4))\n")
file.write(
' #if (strcmp(Ext,".obj")=0 | strcmp(Ext,".pcm")=0 | strcmp(Ext,".arr")=0)\n'
)
file.write(' #if (strcmp(Ext,".obj")=0)\n')
file.write(" #local Return=2;\n")
file.write(" #end\n")
file.write(' #if (strcmp(Ext,".pcm")=0)\n')
file.write(" #local Return=3;\n")
file.write(" #end\n")
file.write(' #if (strcmp(Ext,".arr")=0)\n')
file.write(" #local Return=4;\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(" #local Return=1;\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(" #local Return=1;\n")
file.write(" #end\n")
file.write(" #end\n")
file.write(" #else\n")
file.write(" #local Return=1;\n")
file.write(" #end\n")
file.write(" (Return)\n")
file.write("#end\n")
file.write("#macro BuildSpline(Arr, SplType)\n")
file.write(" #local Ds=dimension_size(Arr,1);\n")
file.write(" #local Asc=asc(strupr(SplType));\n")
file.write(" #if(Asc!=67 & Asc!=76 & Asc!=81) \n")
file.write(" #local Asc=76;\n")
file.write(
' #debug "\nWrong spline type defined (C/c/L/l/N/n/Q/q), using default linear_spline\\n"\n'
)
file.write(" #end\n")
file.write(" spline {\n")
file.write(" #switch (Asc)\n")
file.write(" #case (67) //C cubic_spline\n")
file.write(" cubic_spline\n")
file.write(" #break\n")
file.write(" #case (76) //L linear_spline\n")
file.write(" linear_spline\n")
file.write(" #break\n")
file.write(" #case (78) //N linear_spline\n")
file.write(" natural_spline\n")
file.write(" #break\n")
file.write(" #case (81) //Q Quadratic_spline\n")
file.write(" quadratic_spline\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" #local Add=1/((Ds-2)-1);\n")
file.write(" #local J=0-Add;\n")
file.write(" #local I=0;\n")
file.write(" #while (I<Ds)\n")
file.write(" J\n")
file.write(" Arr[I]\n")
file.write(" #local I=I+1;\n")
file.write(" #local J=J+Add;\n")
file.write(" #end\n")
file.write(" }\n")
file.write("#end\n")
file.write("#macro BuildWriteMesh2(VecArr, NormArr, UVArr, U, V, FileName)\n")
# suppressed some file checking from original macro because no more separate files
file.write(" #local Write=0;\n")
file.write(' #debug concat("\\n\\n Building mesh2: \\n - vertex_vectors\\n")\n')
file.write(" #local NumVertices=dimension_size(VecArr,1);\n")
file.write(" #switch (Write)\n")
file.write(" #case(1)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' " vertex_vectors {\\n",\n')
file.write(' " ", str(NumVertices,0,0),"\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "# Vertices: ",str(NumVertices,0,0),"\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' str(2*NumVertices,0,0),",\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "#declare VertexVectors= array[",str(NumVertices,0,0),"] {\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" mesh2 {\n")
file.write(" vertex_vectors {\n")
file.write(" NumVertices\n")
file.write(" #local I=0;\n")
file.write(" #while (I<NumVertices)\n")
file.write(" VecArr[I]\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(MeshFile, VecArr[I])\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(
' "v ", VecArr[I].x," ", VecArr[I].y," ", VecArr[I].z,"\\n"\n'
)
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' VecArr[I].x,",", VecArr[I].y,",", VecArr[I].z,",\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(MeshFile, VecArr[I])\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" #local I=I+1;\n")
file.write(" #if(Write=1 | Write=4)\n")
file.write(" #if(mod(I,3)=0)\n")
file.write(' #write(MeshFile,"\\n ")\n')
file.write(" #end\n")
file.write(" #end \n")
file.write(" #end\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(' #write(MeshFile,"\\n }\\n")\n')
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(' #write(MeshFile,"\\n")\n')
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" // do nothing\n")
file.write(" #break\n")
file.write(" #case(4) \n")
file.write(' #write(MeshFile,"\\n}\\n")\n')
file.write(" #break\n")
file.write(" #end\n")
file.write(" }\n")
file.write(' #debug concat(" - normal_vectors\\n") \n')
file.write(" #local NumVertices=dimension_size(NormArr,1);\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' " normal_vectors {\\n",\n')
file.write(' " ", str(NumVertices,0,0),"\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "# Normals: ",str(NumVertices,0,0),"\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" // do nothing\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(
' "#declare NormalVectors= array[",str(NumVertices,0,0),"] {\\n "\n'
)
file.write(" )\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" normal_vectors {\n")
file.write(" NumVertices\n")
file.write(" #local I=0;\n")
file.write(" #while (I<NumVertices)\n")
file.write(" NormArr[I]\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(MeshFile NormArr[I])\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(
' "vn ", NormArr[I].x," ", NormArr[I].y," ", NormArr[I].z,"\\n"\n'
)
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' NormArr[I].x,",", NormArr[I].y,",", NormArr[I].z,",\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(MeshFile NormArr[I])\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" #local I=I+1;\n")
file.write(" #if(Write=1 | Write=4) \n")
file.write(" #if(mod(I,3)=0)\n")
file.write(' #write(MeshFile,"\\n ")\n')
file.write(" #end\n")
file.write(" #end\n")
file.write(" #end\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(' #write(MeshFile,"\\n }\\n")\n')
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(' #write(MeshFile,"\\n")\n')
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" //do nothing\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(' #write(MeshFile,"\\n}\\n")\n')
file.write(" #break\n")
file.write(" #end\n")
file.write(" }\n")
file.write(' #debug concat(" - uv_vectors\\n") \n')
file.write(" #local NumVertices=dimension_size(UVArr,1);\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(\n")
file.write(" MeshFile, \n")
file.write(' " uv_vectors {\\n",\n')
file.write(' " ", str(NumVertices,0,0),"\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "# UV-vectors: ",str(NumVertices,0,0),"\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" // do nothing, *.pcm does not support uv-vectors\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "#declare UVVectors= array[",str(NumVertices,0,0),"] {\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" uv_vectors {\n")
file.write(" NumVertices\n")
file.write(" #local I=0;\n")
file.write(" #while (I<NumVertices)\n")
file.write(" UVArr[I]\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(MeshFile UVArr[I])\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "vt ", UVArr[I].u," ", UVArr[I].v,"\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" //do nothing\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(MeshFile UVArr[I])\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" #local I=I+1; \n")
file.write(" #if(Write=1 | Write=4)\n")
file.write(" #if(mod(I,3)=0)\n")
file.write(' #write(MeshFile,"\\n ")\n')
file.write(" #end \n")
file.write(" #end\n")
file.write(" #end \n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(' #write(MeshFile,"\\n }\\n")\n')
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(' #write(MeshFile,"\\n")\n')
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" //do nothing\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(' #write(MeshFile,"\\n}\\n")\n')
file.write(" #break\n")
file.write(" #end\n")
file.write(" }\n")
file.write("\n")
file.write(' #debug concat(" - face_indices\\n") \n')
file.write(" #declare NumFaces=U*V*2;\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' " face_indices {\\n"\n')
file.write(' " ", str(NumFaces,0,0),"\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write (\n")
file.write(" MeshFile,\n")
file.write(' "# faces: ",str(NumFaces,0,0),"\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #write (\n")
file.write(" MeshFile,\n")
file.write(' "0,",str(NumFaces,0,0),",\\n"\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(' "#declare FaceIndices= array[",str(NumFaces,0,0),"] {\\n "\n')
file.write(" )\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" face_indices {\n")
file.write(" NumFaces\n")
file.write(" #local I=0;\n")
file.write(" #local H=0;\n")
file.write(" #local NumVertices=dimension_size(VecArr,1);\n")
file.write(" #while (I<V)\n")
file.write(" #local J=0;\n")
file.write(" #while (J<U)\n")
file.write(" #local Ind=(I*U)+I+J;\n")
file.write(" <Ind, Ind+1, Ind+U+2>, <Ind, Ind+U+1, Ind+U+2>\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(" <Ind, Ind+1, Ind+U+2>, <Ind, Ind+U+1, Ind+U+2>\n")
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(
' "f ",Ind+1,"/",Ind+1,"/",Ind+1," ",Ind+1+1,"/",Ind+1+1,"/",Ind+1+1," ",Ind+U+2+1,"/",Ind+U+2+1,"/",Ind+U+2+1,"\\n",\n'
)
file.write(
' "f ",Ind+U+1+1,"/",Ind+U+1+1,"/",Ind+U+1+1," ",Ind+1,"/",Ind+1,"/",Ind+1," ",Ind+U+2+1,"/",Ind+U+2+1,"/",Ind+U+2+1,"\\n"\n'
)
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(
' Ind,",",Ind+NumVertices,",",Ind+1,",",Ind+1+NumVertices,",",Ind+U+2,",",Ind+U+2+NumVertices,",\\n"\n'
)
file.write(
' Ind+U+1,",",Ind+U+1+NumVertices,",",Ind,",",Ind+NumVertices,",",Ind+U+2,",",Ind+U+2+NumVertices,",\\n"\n'
)
file.write(" )\n")
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(" #write(\n")
file.write(" MeshFile,\n")
file.write(" <Ind, Ind+1, Ind+U+2>, <Ind, Ind+U+1, Ind+U+2>\n")
file.write(" )\n")
file.write(" #break\n")
file.write(" #end\n")
file.write(" #local J=J+1;\n")
file.write(" #local H=H+1;\n")
file.write(" #if(Write=1 | Write=4)\n")
file.write(" #if(mod(H,3)=0)\n")
file.write(' #write(MeshFile,"\\n ")\n')
file.write(" #end \n")
file.write(" #end\n")
file.write(" #end\n")
file.write(" #local I=I+1;\n")
file.write(" #end\n")
file.write(" }\n")
file.write(" #switch(Write)\n")
file.write(" #case(1)\n")
file.write(' #write(MeshFile, "\\n }\\n}")\n')
file.write(" #fclose MeshFile\n")
file.write(' #debug concat(" Done writing\\n")\n')
file.write(" #break\n")
file.write(" #case(2)\n")
file.write(" #fclose MeshFile\n")
file.write(' #debug concat(" Done writing\\n")\n')
file.write(" #break\n")
file.write(" #case(3)\n")
file.write(" #fclose MeshFile\n")
file.write(' #debug concat(" Done writing\\n")\n')
file.write(" #break\n")
file.write(" #case(4)\n")
file.write(' #write(MeshFile, "\\n}\\n}")\n')
file.write(" #fclose MeshFile\n")
file.write(' #debug concat(" Done writing\\n")\n')
file.write(" #break\n")
file.write(" #end\n")
file.write(" }\n")
file.write("#end\n")
file.write("#macro MSM(SplineArray, SplRes, Interp_type, InterpRes, FileName)\n")
file.write(" #declare Build=CheckFileName(FileName);\n")
file.write(" #if(Build=0)\n")
file.write(' #debug concat("\\n Parsing mesh2 from file: ", FileName, "\\n")\n')
file.write(" #include FileName\n")
file.write(" object{Surface}\n")
file.write(" #else\n")
file.write(" #local NumVertices=(SplRes+1)*(InterpRes+1);\n")
file.write(" #local NumFaces=SplRes*InterpRes*2;\n")
file.write(
' #debug concat("\\n Calculating ",str(NumVertices,0,0)," vertices for ", str(NumFaces,0,0)," triangles\\n\\n")\n'
)
file.write(" #local VecArr=array[NumVertices]\n")
file.write(" #local NormArr=array[NumVertices]\n")
file.write(" #local UVArr=array[NumVertices]\n")
file.write(" #local N=dimension_size(SplineArray,1);\n")
file.write(" #local TempSplArr0=array[N];\n")
file.write(" #local TempSplArr1=array[N];\n")
file.write(" #local TempSplArr2=array[N];\n")
file.write(" #local PosStep=1/SplRes;\n")
file.write(" #local InterpStep=1/InterpRes;\n")
file.write(" #local Count=0;\n")
file.write(" #local Pos=0;\n")
file.write(" #while(Pos<=1)\n")
file.write(" #local I=0;\n")
file.write(" #if (Pos=0)\n")
file.write(" #while (I<N)\n")
file.write(" #local Spl=spline{SplineArray[I]}\n")
file.write(" #local TempSplArr0[I]=<0,0,0>+Spl(Pos);\n")
file.write(" #local TempSplArr1[I]=<0,0,0>+Spl(Pos+PosStep);\n")
file.write(" #local TempSplArr2[I]=<0,0,0>+Spl(Pos-PosStep);\n")
file.write(" #local I=I+1;\n")
file.write(" #end\n")
file.write(" #local S0=BuildSpline(TempSplArr0, Interp_type)\n")
file.write(" #local S1=BuildSpline(TempSplArr1, Interp_type)\n")
file.write(" #local S2=BuildSpline(TempSplArr2, Interp_type)\n")
file.write(" #else\n")
file.write(" #while (I<N)\n")
file.write(" #local Spl=spline{SplineArray[I]}\n")
file.write(" #local TempSplArr1[I]=<0,0,0>+Spl(Pos+PosStep);\n")
file.write(" #local I=I+1;\n")
file.write(" #end\n")
file.write(" #local S1=BuildSpline(TempSplArr1, Interp_type)\n")
file.write(" #end\n")
file.write(" #local J=0;\n")
file.write(" #while (J<=1)\n")
file.write(" #local P0=<0,0,0>+S0(J);\n")
file.write(" #local P1=<0,0,0>+S1(J);\n")
file.write(" #local P2=<0,0,0>+S2(J);\n")
file.write(" #local P3=<0,0,0>+S0(J+InterpStep);\n")
file.write(" #local P4=<0,0,0>+S0(J-InterpStep);\n")
file.write(" #local B1=P4-P0;\n")
file.write(" #local B2=P2-P0;\n")
file.write(" #local B3=P3-P0;\n")
file.write(" #local B4=P1-P0;\n")
file.write(" #local N1=vcross(B1,B2);\n")
file.write(" #local N2=vcross(B2,B3);\n")
file.write(" #local N3=vcross(B3,B4);\n")
file.write(" #local N4=vcross(B4,B1);\n")
file.write(" #local Norm=vnormalize((N1+N2+N3+N4));\n")
file.write(" #local VecArr[Count]=P0;\n")
file.write(" #local NormArr[Count]=Norm;\n")
file.write(" #local UVArr[Count]=<J,Pos>;\n")
file.write(" #local J=J+InterpStep;\n")
file.write(" #local Count=Count+1;\n")
file.write(" #end\n")
file.write(" #local S2=spline{S0}\n")
file.write(" #local S0=spline{S1}\n")
file.write(
' #debug concat("\\r Done ", str(Count,0,0)," vertices : ", str(100*Count/NumVertices,0,2)," %")\n'
)
file.write(" #local Pos=Pos+PosStep;\n")
file.write(" #end\n")
file.write(' BuildWriteMesh2(VecArr, NormArr, UVArr, InterpRes, SplRes, "")\n')
file.write(" #end\n")
file.write("#end\n\n")
file.write("#macro Coons(Spl1, Spl2, Spl3, Spl4, Iter_U, Iter_V, FileName)\n")
file.write(" #declare Build=CheckFileName(FileName);\n")
file.write(" #if(Build=0)\n")
file.write(' #debug concat("\\n Parsing mesh2 from file: ", FileName, "\\n")\n')
file.write(" #include FileName\n")
file.write(" object{Surface}\n")
file.write(" #else\n")
file.write(" #local NumVertices=(Iter_U+1)*(Iter_V+1);\n")
file.write(" #local NumFaces=Iter_U*Iter_V*2;\n")
file.write(
' #debug concat("\\n Calculating ", str(NumVertices,0,0), " vertices for ",str(NumFaces,0,0), " triangles\\n\\n")\n'
)
file.write(" #declare VecArr=array[NumVertices] \n")
file.write(" #declare NormArr=array[NumVertices] \n")
file.write(" #local UVArr=array[NumVertices] \n")
file.write(" #local Spl1_0=Spl1(0);\n")
file.write(" #local Spl2_0=Spl2(0);\n")
file.write(" #local Spl3_0=Spl3(0);\n")
file.write(" #local Spl4_0=Spl4(0);\n")
file.write(" #local UStep=1/Iter_U;\n")
file.write(" #local VStep=1/Iter_V;\n")
file.write(" #local Count=0;\n")
file.write(" #local I=0;\n")
file.write(" #while (I<=1)\n")
file.write(" #local Im=1-I;\n")
file.write(" #local J=0;\n")
file.write(" #while (J<=1)\n")
file.write(" #local Jm=1-J;\n")
file.write(
" #local C0=Im*Jm*(Spl1_0)+Im*J*(Spl2_0)+I*J*(Spl3_0)+I*Jm*(Spl4_0);\n"
)
file.write(" #local P0=LInterpolate(I, Spl1(J), Spl3(Jm)) + \n")
file.write(" LInterpolate(Jm, Spl2(I), Spl4(Im))-C0;\n")
file.write(" #declare VecArr[Count]=P0;\n")
file.write(" #local UVArr[Count]=<J,I>;\n")
file.write(" #local J=J+UStep;\n")
file.write(" #local Count=Count+1;\n")
file.write(" #end\n")
file.write(" #debug concat(\n")
file.write(' "\r Done ", str(Count,0,0)," vertices : ",\n')
file.write(' str(100*Count/NumVertices,0,2)," %"\n')
file.write(" )\n")
file.write(" #local I=I+VStep;\n")
file.write(" #end\n")
file.write(' #debug "\r Normals "\n')
file.write(" #local Count=0;\n")
file.write(" #local I=0;\n")
file.write(" #while (I<=Iter_V)\n")
file.write(" #local J=0;\n")
file.write(" #while (J<=Iter_U)\n")
file.write(" #local Ind=(I*Iter_U)+I+J;\n")
file.write(" #local P0=VecArr[Ind];\n")
file.write(" #if(J=0)\n")
file.write(" #local P1=P0+(P0-VecArr[Ind+1]);\n")
file.write(" #else\n")
file.write(" #local P1=VecArr[Ind-1];\n")
file.write(" #end\n")
file.write(" #if (J=Iter_U)\n")
file.write(" #local P2=P0+(P0-VecArr[Ind-1]);\n")
file.write(" #else\n")
file.write(" #local P2=VecArr[Ind+1];\n")
file.write(" #end\n")
file.write(" #if (I=0)\n")
file.write(" #local P3=P0+(P0-VecArr[Ind+Iter_U+1]);\n")
file.write(" #else\n")
file.write(" #local P3=VecArr[Ind-Iter_U-1];\n")
file.write(" #end\n")
file.write(" #if (I=Iter_V)\n")
file.write(" #local P4=P0+(P0-VecArr[Ind-Iter_U-1]);\n")
file.write(" #else\n")
file.write(" #local P4=VecArr[Ind+Iter_U+1];\n")
file.write(" #end\n")
file.write(" #local B1=P4-P0;\n")
file.write(" #local B2=P2-P0;\n")
file.write(" #local B3=P3-P0;\n")
file.write(" #local B4=P1-P0;\n")
file.write(" #local N1=vcross(B1,B2);\n")
file.write(" #local N2=vcross(B2,B3);\n")
file.write(" #local N3=vcross(B3,B4);\n")
file.write(" #local N4=vcross(B4,B1);\n")
file.write(" #local Norm=vnormalize((N1+N2+N3+N4));\n")
file.write(" #declare NormArr[Count]=Norm;\n")
file.write(" #local J=J+1;\n")
file.write(" #local Count=Count+1;\n")
file.write(" #end\n")
file.write(
' #debug concat("\r Done ", str(Count,0,0)," normals : ",str(100*Count/NumVertices,0,2), " %")\n'
)
file.write(" #local I=I+1;\n")
file.write(" #end\n")
file.write(" BuildWriteMesh2(VecArr, NormArr, UVArr, Iter_U, Iter_V, FileName)\n")
file.write(" #end\n")
file.write("#end\n\n")
# Empty curves
if len(ob.data.splines) == 0:
tab_write(file, "\n//dummy sphere to represent empty curve location\n")
tab_write(file, "#declare %s =\n" % dataname)
tab_write(
file,
"sphere {<%.6g, %.6g, %.6g>,0 pigment{rgbt 1} "
"no_image no_reflection no_radiosity "
"photons{pass_through collect off} hollow}\n\n"
% (ob.location.x, ob.location.y, ob.location.z),
) # ob.name > povdataname)
# And non empty curves
else:
if not bezier_sweep:
tab_write(file, "#declare %s =\n" % dataname)
if ob.pov.curveshape == "sphere_sweep" and not bezier_sweep:
tab_write(file, "union {\n")
for spl in ob.data.splines:
if spl.type != "BEZIER":
spl_type = "linear"
if spl.type == "NURBS":
spl_type = "cubic"
points = spl.points
num_points = len(points)
if spl.use_cyclic_u:
num_points += 3
tab_write(file, "sphere_sweep { %s_spline %s,\n" % (spl_type, num_points))
if spl.use_cyclic_u:
pt1 = points[len(points) - 1]
wpt1 = pt1.co
tab_write(
file,
"<%.4g,%.4g,%.4g>,%.4g\n"
% (
wpt1[0],
wpt1[1],
wpt1[2],
pt1.radius * ob.data.bevel_depth,
),
)
for pt in points:
wpt = pt.co
tab_write(
file,
"<%.4g,%.4g,%.4g>,%.4g\n"
% (wpt[0], wpt[1], wpt[2], pt.radius * ob.data.bevel_depth),
)
if spl.use_cyclic_u:
for i in range(0, 2):
end_pt = points[i]
wpt = end_pt.co
tab_write(
file,
"<%.4g,%.4g,%.4g>,%.4g\n"
% (
wpt[0],
wpt[1],
wpt[2],
end_pt.radius * ob.data.bevel_depth,
),
)
tab_write(file, "}\n")
# below not used yet?
if ob.pov.curveshape == "sor":
for spl in ob.data.splines:
if spl.type in ("POLY", "NURBS"):
points = spl.points
num_points = len(points)
tab_write(file, "sor { %s,\n" % num_points)
for pt in points:
wpt = pt.co
tab_write(file, "<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
else:
tab_write(file, "box { 0,0\n")
if ob.pov.curveshape in ("lathe", "prism"):
spl = ob.data.splines[0]
if spl.type == "BEZIER":
points = spl.bezier_points
len_cur = len(points) - 1
len_pts = len_cur * 4
ifprism = ""
if ob.pov.curveshape == "prism":
height = ob.data.extrude
ifprism = "-%s, %s," % (height, height)
len_cur += 1
len_pts += 4
tab_write(
file, "%s { bezier_spline %s %s,\n" % (ob.pov.curveshape, ifprism, len_pts)
)
for i in range(0, len_cur):
p1 = points[i].co
pR = points[i].handle_right
end = i + 1
if i == len_cur - 1 and ob.pov.curveshape == "prism":
end = 0
pL = points[end].handle_left
p2 = points[end].co
line = "<%.4g,%.4g>" % (p1[0], p1[1])
line += "<%.4g,%.4g>" % (pR[0], pR[1])
line += "<%.4g,%.4g>" % (pL[0], pL[1])
line += "<%.4g,%.4g>" % (p2[0], p2[1])
tab_write(file, "%s\n" % line)
else:
points = spl.points
len_cur = len(points)
len_pts = len_cur
ifprism = ""
if ob.pov.curveshape == "prism":
height = ob.data.extrude
ifprism = "-%s, %s," % (height, height)
len_pts += 3
spl_type = "quadratic"
if spl.type == "POLY":
spl_type = "linear"
tab_write(
file,
"%s { %s_spline %s %s,\n" % (ob.pov.curveshape, spl_type, ifprism, len_pts),
)
if ob.pov.curveshape == "prism":
pt = points[len(points) - 1]
wpt = pt.co
tab_write(file, "<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
for pt in points:
wpt = pt.co
tab_write(file, "<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
if ob.pov.curveshape == "prism":
for i in range(2):
pt = points[i]
wpt = pt.co
tab_write(file, "<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
if bezier_sweep:
for p, spl in enumerate(ob.data.splines, start=1):
br = []
depth = ob.data.bevel_depth
points = spl.bezier_points
len_cur = len(points) - 1
num_points = len_cur * 4
if spl.use_cyclic_u:
len_cur += 1
num_points += 4
tab_write(file, "#declare %s_points_%s = array[%s]{\n" % (dataname, p, num_points))
for i in range(len_cur):
p1 = points[i].co
pR = points[i].handle_right
end = i + 1
if spl.use_cyclic_u and i == (len_cur - 1):
end = 0
pL = points[end].handle_left
p2 = points[end].co
r3 = points[end].radius * depth
r0 = points[i].radius * depth
r1 = 2 / 3 * r0 + 1 / 3 * r3
r2 = 1 / 3 * r0 + 2 / 3 * r3
br.append((r0, r1, r2, r3))
line = "<%.4g,%.4g,%.4f>" % (p1[0], p1[1], p1[2])
line += "<%.4g,%.4g,%.4f>" % (pR[0], pR[1], pR[2])
line += "<%.4g,%.4g,%.4f>" % (pL[0], pL[1], pL[2])
line += "<%.4g,%.4g,%.4f>" % (p2[0], p2[1], p2[2])
tab_write(file, "%s\n" % line)
tab_write(file, "}\n")
tab_write(file, "#declare %s_radii_%s = array[%s]{\n" % (dataname, p, len(br) * 4))
for rad_tuple in br:
tab_write(
file,
"%.4f,%.4f,%.4f,%.4f\n"
% (rad_tuple[0], rad_tuple[1], rad_tuple[2], rad_tuple[3]),
)
tab_write(file, "}\n")
if len(ob.data.splines) == 1:
p = 1
tab_write(file, "#declare %s = object{\n" % dataname)
tab_write(
file,
" Shape_Bezierpoints_Sphere_Sweep(yes,%s, %s_points_%s, %s_radii_%s) \n"
% (ob.data.resolution_u, dataname, p, dataname, p),
)
else:
tab_write(file, "#declare %s = union{\n" % dataname)
for p, spl in enumerate(ob.data.splines, start=1):
tab_write(
file,
" object{Shape_Bezierpoints_Sphere_Sweep(yes,%s, %s_points_%s, %s_radii_%s)} \n"
% (ob.data.resolution_u, dataname, p, dataname, p),
)
# tab_write(file, '#include "bezier_spheresweep.inc"\n') #now inlined
# tab_write(file, '#declare %s = object{Shape_Bezierpoints_Sphere_Sweep(yes,%s, %s_bezier_points, %.4f) \n'%(dataname,ob.data.resolution_u,dataname,ob.data.bevel_depth))
if ob.pov.curveshape == "loft":
tab_write(
file, 'object {MSM(%s,%s,"c",%s,"")\n' % (dataname, ob.pov.res_u, ob.pov.res_v)
)
if ob.pov.curveshape == "birail":
splines = "%s1,%s2,%s3,%s4" % (dataname, dataname, dataname, dataname)
tab_write(
file, 'object {Coons(%s, %s, %s, "")\n' % (splines, ob.pov.res_u, ob.pov.res_v)
)
# pov_mat_name = "Default_texture" # XXX! Unused, check instantiation
if ob.active_material:
# pov_mat_name = string_strip_hyphen(bpy.path.clean_name(ob.active_material.name))
try:
material = ob.active_material
write_object_material_interior(file, material, ob, tab_write)
except IndexError:
print(ob.data)
# tab_write(file, "texture {%s}\n"%pov_mat_name)
if ob.pov.curveshape == "prism":
tab_write(file, "rotate <90,0,0>\n")
tab_write(file, "scale y*-1\n")
tab_write(file, "}\n")