# SPDX-License-Identifier: GPL-2.0-or-later
# <pep8 compliant>
"""Translate to POV the control point compounded geometries like polygon
meshes or curve based shapes.
"""
import bpy
from .shading import write_object_material_interior
# -------- LOFT, ETC.
def export_curves(file, ob, string_strip_hyphen, 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
"""
# 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('#declare %s%s=spline {\n' % (dataname, n))
tab_write('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('%.6f, <%.6f,%.6f,%.6f>\n' % (d, x, y, z))
d += delta
for point in spline.points:
x, y, z, w = point.co[:]
tab_write('%.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('%.6f, <%.6f,%.6f,%.6f>\n' % (d, x, y, z))
d += delta
tab_write('}\n')
if ob.pov.curveshape in {'loft'}:
n = len(ob.data.splines)
tab_write('#declare %s = array[%s]{\n' % (dataname, (n + 3)))
tab_write('spline{%s%s},\n' % (dataname, n))
for i in range(n):
tab_write('spline{%s%s},\n' % (dataname, (i + 1)))
tab_write('spline{%s1},\n' % dataname)
tab_write('spline{%s2}\n' % dataname)
tab_write('}\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("\n//dummy sphere to represent empty curve location\n")
tab_write("#declare %s =\n" % dataname)
tab_write(
"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("#declare %s =\n" % dataname)
if ob.pov.curveshape == 'sphere_sweep' and not bezier_sweep:
tab_write("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("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(
"<%.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(
"<%.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(
"<%.4g,%.4g,%.4g>,%.4g\n"
% (wpt[0], wpt[1], wpt[2], end_pt.radius * ob.data.bevel_depth)
)
tab_write("}\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("sor { %s,\n" % num_points)
for pt in points:
wpt = pt.co
tab_write("<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
else:
tab_write("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 in {'prism'}:
height = ob.data.extrude
ifprism = '-%s, %s,' % (height, height)
len_cur += 1
len_pts += 4
tab_write("%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 in {'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("%s\n" % line)
else:
points = spl.points
len_cur = len(points)
len_pts = len_cur
ifprism = ''
if ob.pov.curveshape in {'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(
"%s { %s_spline %s %s,\n" % (ob.pov.curveshape, spl_type, ifprism, len_pts)
)
if ob.pov.curveshape in {'prism'}:
pt = points[len(points) - 1]
wpt = pt.co
tab_write("<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
for pt in points:
wpt = pt.co
tab_write("<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
if ob.pov.curveshape in {'prism'}:
for i in range(2):
pt = points[i]
wpt = pt.co
tab_write("<%.4g,%.4g>\n" % (wpt[0], wpt[1]))
if bezier_sweep:
for p in range(len(ob.data.splines)):
br = []
depth = ob.data.bevel_depth
spl = ob.data.splines[p]
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("#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("%s\n" % line)
tab_write("}\n")
tab_write("#declare %s_radii_%s = array[%s]{\n" % (dataname, p, len(br) * 4))
for rad_tuple in br:
tab_write(
'%.4f,%.4f,%.4f,%.4f\n'
% (rad_tuple[0], rad_tuple[1], rad_tuple[2], rad_tuple[3])
)
tab_write("}\n")
if len(ob.data.splines) == 1:
p = 1
tab_write('#declare %s = object{\n' % dataname)
tab_write(
' Shape_Bezierpoints_Sphere_Sweep(yes,%s, %s_points_%s, %s_radii_%s) \n'
% (ob.data.resolution_u, dataname, p, dataname, p)
)
else:
tab_write('#declare %s = union{\n' % dataname)
for p in range(len(ob.data.splines)):
tab_write(
' object{Shape_Bezierpoints_Sphere_Sweep(yes,%s, %s_points_%s, %s_radii_%s)} \n'
% (ob.data.resolution_u, dataname, p, dataname, p)
)
# tab_write('#include "bezier_spheresweep.inc"\n') #now inlined
# tab_write('#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 in {'loft'}:
tab_write('object {MSM(%s,%s,"c",%s,"")\n' % (dataname, ob.pov.res_u, ob.pov.res_v))
if ob.pov.curveshape in {'birail'}:
splines = '%s1,%s2,%s3,%s4' % (dataname, dataname, dataname, dataname)
tab_write('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(material, ob, tab_write)
except IndexError:
print(ob.data)
# tab_write("texture {%s}\n"%pov_mat_name)
if ob.pov.curveshape in {'prism'}:
tab_write("rotate <90,0,0>\n")
tab_write("scale y*-1\n")
tab_write("}\n")