diff options
Diffstat (limited to 'render_povray/object_curve_topology.py')
| -rwxr-xr-x | render_povray/object_curve_topology.py | 974 |
1 files changed, 974 insertions, 0 deletions
diff --git a/render_povray/object_curve_topology.py b/render_povray/object_curve_topology.py new file mode 100755 index 00000000..5fa2b277 --- /dev/null +++ b/render_povray/object_curve_topology.py @@ -0,0 +1,974 @@ +# ***** BEGIN GPL LICENSE BLOCK ***** +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# #**** END GPL LICENSE BLOCK #**** + +# <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 + +################################ LOFT, ETC. +def export_curves(ob, string_strip_hyphen, global_matrix, tab_write): + """write all curves based POV primitives to exported file """ + name_orig = "OB" + ob.name + dataname_orig = "DATA" + ob.data.name + + name = string_strip_hyphen(bpy.path.clean_name(name_orig)) + dataname = string_strip_hyphen(bpy.path.clean_name(dataname_orig)) + + matrix = global_matrix @ ob.matrix_world + bezier_sweep = False + if ob.pov.curveshape == 'sphere_sweep': + # 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: + 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" + 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(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") |