Fix smooth triangles catmark weights

- rename enums in sdc/options
- add support for "smoothtriangles" tag in Shapes
- add 2 test shapes to glViewer
This commit is contained in:
manuelk 2014-12-11 09:19:41 -08:00
parent 4a3184684f
commit 544213b3f0
7 changed files with 499 additions and 18 deletions

View File

@ -76,6 +76,8 @@ static std::vector<ShapeDesc> g_defaultShapes;
#include <shapes/catmark_pyramid_creases1.h>
#include <shapes/catmark_pyramid.h>
#include <shapes/catmark_rook.h>
#include <shapes/catmark_smoothtris0.h>
#include <shapes/catmark_smoothtris1.h>
#include <shapes/catmark_square_hedit0.h>
#include <shapes/catmark_square_hedit1.h>
#include <shapes/catmark_square_hedit2.h>
@ -141,6 +143,8 @@ static void initShapes() {
g_defaultShapes.push_back( ShapeDesc("catmark_tent", catmark_tent, kCatmark ) );
g_defaultShapes.push_back( ShapeDesc("catmark_torus", catmark_torus, kCatmark ) );
g_defaultShapes.push_back( ShapeDesc("catmark_torus_creases0", catmark_torus_creases0, kCatmark ) );
g_defaultShapes.push_back( ShapeDesc("catmark_smoothtris0", catmark_smoothtris0, kCatmark ) );
g_defaultShapes.push_back( ShapeDesc("catmark_smoothtris1", catmark_smoothtris1, kCatmark ) );
// g_defaultShapes.push_back( ShapeDesc("catmark_square_hedit0", catmark_square_hedit0, kCatmark ) );
// g_defaultShapes.push_back( ShapeDesc("catmark_square_hedit1", catmark_square_hedit1, kCatmark ) );
// g_defaultShapes.push_back( ShapeDesc("catmark_square_hedit2", catmark_square_hedit2, kCatmark ) );

View File

@ -638,7 +638,7 @@ MayaPolySmooth::compute( const MPlug& plug, MDataBlock& data ) {
options.SetCreasingMethod(creaseMethodVal ?
OpenSubdiv::Sdc::Options::CREASE_CHAIKIN : OpenSubdiv::Sdc::Options::CREASE_UNIFORM);
options.SetTriangleSubdivision(smoothTriangles ?
OpenSubdiv::Sdc::Options::TRI_SUB_NEW : OpenSubdiv::Sdc::Options::TRI_SUB_OLD);
OpenSubdiv::Sdc::Options::TRI_SUB_SMOOTH : OpenSubdiv::Sdc::Options::TRI_SUB_CATMARK);
float maxCreaseSharpness=0.0f;
OpenSubdiv::Far::TopologyRefiner * refiner =

View File

@ -69,7 +69,7 @@ Scheme<TYPE_CATMARK>::assignSmoothMaskForEdge(EDGE const& edge, MASK& mask) cons
//
bool face0IsTri = false;
bool face1IsTri = false;
bool useTriangleOption = (_options.GetTriangleSubdivision() != Options::TRI_SUB_NORMAL);
bool useTriangleOption = (_options.GetTriangleSubdivision() == Options::TRI_SUB_SMOOTH);
if (useTriangleOption) {
if (faceCount == 2) {
//
@ -88,7 +88,7 @@ Scheme<TYPE_CATMARK>::assignSmoothMaskForEdge(EDGE const& edge, MASK& mask) cons
}
}
if (!useTriangleOption) {
if (not useTriangleOption) {
mask.VertexWeight(0) = 0.25f;
mask.VertexWeight(1) = 0.25f;
@ -103,7 +103,7 @@ Scheme<TYPE_CATMARK>::assignSmoothMaskForEdge(EDGE const& edge, MASK& mask) cons
}
} else {
//
// This mimics the implementation in Hbr in terms of order of operations:
// This mimics the implementation in Hbr in terms of order of operations.
//
const Weight CATMARK_SMOOTH_TRI_EDGE_WEIGHT = 0.470f;

View File

@ -96,9 +96,8 @@ public:
CREASE_CHAIKIN
};
enum TriangleSubdivision {
TRI_SUB_NORMAL = 0,
TRI_SUB_OLD,
TRI_SUB_NEW
TRI_SUB_CATMARK = 0,
TRI_SUB_SMOOTH
};
public:
@ -107,7 +106,7 @@ public:
Options() : _vvarBoundInterp(VVAR_BOUNDARY_NONE),
_fvarLinInterp(FVAR_LINEAR_ALL),
_creasingMethod(CREASE_UNIFORM),
_triangleSub(TRI_SUB_NORMAL) { }
_triangleSub(TRI_SUB_CATMARK) { }
~Options() { }
//

View File

@ -54,7 +54,7 @@ GetSdcOptions(Shape const & shape) {
result.SetVVarBoundaryInterpolation(Options::VVAR_BOUNDARY_EDGE_ONLY);
result.SetCreasingMethod(Options::CREASE_UNIFORM);
result.SetTriangleSubdivision(Options::TRI_SUB_NORMAL);
result.SetTriangleSubdivision(Options::TRI_SUB_CATMARK);
for (int i=0; i<(int)shape.tags.size(); ++i) {
@ -91,12 +91,6 @@ GetSdcOptions(Shape const & shape) {
assert(0);
} else
printf( "expecting single int argument for \"facevaryingpropagatecorners\"\n" );
} else if (t->name=="smoothtriangles") {
if (shape.scheme!=kCatmark) {
printf("the \"smoothtriangles\" tag can only be applied to Catmark meshes\n");
continue;
}
} else if (t->name=="creasemethod") {
if ((int)t->stringargs.size()==0) {
@ -104,12 +98,26 @@ GetSdcOptions(Shape const & shape) {
continue;
}
if( t->stringargs[0]=="normal" )
if (t->stringargs[0]=="normal") {
result.SetCreasingMethod(Options::CREASE_UNIFORM);
else if( t->stringargs[0]=="chaikin" )
} else if (t->stringargs[0]=="chaikin") {
result.SetCreasingMethod(Options::CREASE_CHAIKIN);
else
} else {
printf("the \"creasemethod\" tag only accepts \"normal\" or \"chaikin\" as value (%s)\n", t->stringargs[0].c_str());
}
} else if (t->name=="smoothtriangles") {
if (shape.scheme!=kCatmark) {
printf("the \"smoothtriangles\" tag can only be applied to Catmark meshes\n");
continue;
}
if (t->stringargs[0]=="catmark") {
result.SetTriangleSubdivision(Options::TRI_SUB_CATMARK);
} else if (t->stringargs[0]=="smooth") {
result.SetTriangleSubdivision(Options::TRI_SUB_SMOOTH);
} else {
printf("the \"smoothtriangles\" tag only accepts \"catmark\" or \"smooth\" as value (%s)\n", t->stringargs[0].c_str());
}
}
}

View File

@ -0,0 +1,235 @@
//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
static const std::string catmark_smoothtris0 =
"# This file uses centimeters as units for non-parametric coordinates.\n"
"\n"
"v 0.951057 -1.000000 -0.309017\n"
"v 0.809018 -1.000000 -0.587786\n"
"v 0.587786 -1.000000 -0.809017\n"
"v 0.309017 -1.000000 -0.951057\n"
"v 0.000000 -1.000000 -1.000000\n"
"v -0.309017 -1.000000 -0.951057\n"
"v -0.587785 -1.000000 -0.809017\n"
"v -0.809017 -1.000000 -0.587785\n"
"v -0.951057 -1.000000 -0.309017\n"
"v -1.000000 -1.000000 0.000000\n"
"v -0.951057 -1.000000 0.309017\n"
"v -0.809017 -1.000000 0.587785\n"
"v -0.587785 -1.000000 0.809017\n"
"v -0.309017 -1.000000 0.951057\n"
"v -0.000000 -1.000000 1.000000\n"
"v 0.309017 -1.000000 0.951057\n"
"v 0.587785 -1.000000 0.809017\n"
"v 0.809017 -1.000000 0.587785\n"
"v 0.951057 -1.000000 0.309017\n"
"v 1.000000 -1.000000 0.000000\n"
"v 0.951057 1.000000 -0.309017\n"
"v 0.809018 1.000000 -0.587786\n"
"v 0.587786 1.000000 -0.809017\n"
"v 0.309017 1.000000 -0.951057\n"
"v 0.000000 1.000000 -1.000000\n"
"v -0.309017 1.000000 -0.951057\n"
"v -0.587785 1.000000 -0.809017\n"
"v -0.809017 1.000000 -0.587785\n"
"v -0.951057 1.000000 -0.309017\n"
"v -1.000000 1.000000 0.000000\n"
"v -0.951057 1.000000 0.309017\n"
"v -0.809017 1.000000 0.587785\n"
"v -0.587785 1.000000 0.809017\n"
"v -0.309017 1.000000 0.951057\n"
"v -0.000000 1.000000 1.000000\n"
"v 0.309017 1.000000 0.951057\n"
"v 0.587785 1.000000 0.809017\n"
"v 0.809017 1.000000 0.587785\n"
"v 0.951057 1.000000 0.309017\n"
"v 1.000000 1.000000 0.000000\n"
"v 0.000000 -1.000000 0.000000\n"
"v 0.000000 1.000000 0.000000\n"
"vt 0.648603 0.107966\n"
"vt 0.626409 0.064408\n"
"vt 0.591842 0.029841\n"
"vt 0.548284 0.007647\n"
"vt 0.500000 -0.000000\n"
"vt 0.451716 0.007647\n"
"vt 0.408159 0.029841\n"
"vt 0.373591 0.064409\n"
"vt 0.351397 0.107966\n"
"vt 0.343750 0.156250\n"
"vt 0.351397 0.204534\n"
"vt 0.373591 0.248091\n"
"vt 0.408159 0.282659\n"
"vt 0.451716 0.304853\n"
"vt 0.500000 0.312500\n"
"vt 0.548284 0.304853\n"
"vt 0.591841 0.282659\n"
"vt 0.626409 0.248091\n"
"vt 0.648603 0.204534\n"
"vt 0.656250 0.156250\n"
"vt 0.375000 0.312500\n"
"vt 0.387500 0.312500\n"
"vt 0.400000 0.312500\n"
"vt 0.412500 0.312500\n"
"vt 0.425000 0.312500\n"
"vt 0.437500 0.312500\n"
"vt 0.450000 0.312500\n"
"vt 0.462500 0.312500\n"
"vt 0.475000 0.312500\n"
"vt 0.487500 0.312500\n"
"vt 0.500000 0.312500\n"
"vt 0.512500 0.312500\n"
"vt 0.525000 0.312500\n"
"vt 0.537500 0.312500\n"
"vt 0.550000 0.312500\n"
"vt 0.562500 0.312500\n"
"vt 0.575000 0.312500\n"
"vt 0.587500 0.312500\n"
"vt 0.600000 0.312500\n"
"vt 0.612500 0.312500\n"
"vt 0.625000 0.312500\n"
"vt 0.375000 0.688440\n"
"vt 0.387500 0.688440\n"
"vt 0.400000 0.688440\n"
"vt 0.412500 0.688440\n"
"vt 0.425000 0.688440\n"
"vt 0.437500 0.688440\n"
"vt 0.450000 0.688440\n"
"vt 0.462500 0.688440\n"
"vt 0.475000 0.688440\n"
"vt 0.487500 0.688440\n"
"vt 0.500000 0.688440\n"
"vt 0.512500 0.688440\n"
"vt 0.525000 0.688440\n"
"vt 0.537500 0.688440\n"
"vt 0.550000 0.688440\n"
"vt 0.562500 0.688440\n"
"vt 0.575000 0.688440\n"
"vt 0.587500 0.688440\n"
"vt 0.600000 0.688440\n"
"vt 0.612500 0.688440\n"
"vt 0.625000 0.688440\n"
"vt 0.648603 0.795466\n"
"vt 0.626409 0.751908\n"
"vt 0.591842 0.717341\n"
"vt 0.548284 0.695147\n"
"vt 0.500000 0.687500\n"
"vt 0.451716 0.695147\n"
"vt 0.408159 0.717341\n"
"vt 0.373591 0.751909\n"
"vt 0.351397 0.795466\n"
"vt 0.343750 0.843750\n"
"vt 0.351397 0.892034\n"
"vt 0.373591 0.935591\n"
"vt 0.408159 0.970159\n"
"vt 0.451716 0.992353\n"
"vt 0.500000 1.000000\n"
"vt 0.548284 0.992353\n"
"vt 0.591841 0.970159\n"
"vt 0.626409 0.935591\n"
"vt 0.648603 0.892034\n"
"vt 0.656250 0.843750\n"
"vt 0.500000 0.150000\n"
"vt 0.500000 0.837500\n"
"f 1/21 2/22 21/42\n"
"f 21/42 2/22 22/43\n"
"f 2/22 3/23 22/43\n"
"f 22/43 3/23 23/44\n"
"f 3/23 4/24 23/44\n"
"f 23/44 4/24 24/45\n"
"f 4/24 5/25 24/45\n"
"f 24/45 5/25 25/46\n"
"f 5/25 6/26 25/46\n"
"f 25/46 6/26 26/47\n"
"f 6/26 7/27 26/47\n"
"f 26/47 7/27 27/48\n"
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"f 27/48 8/28 28/49\n"
"f 8/28 9/29 28/49\n"
"f 28/49 9/29 29/50\n"
"f 9/29 10/30 29/50\n"
"f 29/50 10/30 30/51\n"
"f 10/30 11/31 30/51\n"
"f 30/51 11/31 31/52\n"
"f 11/31 12/32 31/52\n"
"f 31/52 12/32 32/53\n"
"f 12/32 13/33 32/53\n"
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"f 13/33 14/34 33/54\n"
"f 33/54 14/34 34/55\n"
"f 14/34 15/35 34/55\n"
"f 34/55 15/35 35/56\n"
"f 15/35 16/36 35/56\n"
"f 35/56 16/36 36/57\n"
"f 16/36 17/37 36/57\n"
"f 36/57 17/37 37/58\n"
"f 17/37 18/38 37/58\n"
"f 37/58 18/38 38/59\n"
"f 18/38 19/39 38/59\n"
"f 38/59 19/39 39/60\n"
"f 19/39 20/40 39/60\n"
"f 39/60 20/40 40/61\n"
"f 20/40 1/41 40/61\n"
"f 40/61 1/41 21/62\n"
"f 2/2 1/1 41/83\n"
"f 3/3 2/2 41/83\n"
"f 4/4 3/3 41/83\n"
"f 5/5 4/4 41/83\n"
"f 6/6 5/5 41/83\n"
"f 7/7 6/6 41/83\n"
"f 8/8 7/7 41/83\n"
"f 9/9 8/8 41/83\n"
"f 10/10 9/9 41/83\n"
"f 11/11 10/10 41/83\n"
"f 12/12 11/11 41/83\n"
"f 13/13 12/12 41/83\n"
"f 14/14 13/13 41/83\n"
"f 15/15 14/14 41/83\n"
"f 16/16 15/15 41/83\n"
"f 17/17 16/16 41/83\n"
"f 18/18 17/17 41/83\n"
"f 19/19 18/18 41/83\n"
"f 20/20 19/19 41/83\n"
"f 1/1 20/20 41/83\n"
"f 21/81 22/80 42/84\n"
"f 22/80 23/79 42/84\n"
"f 23/79 24/78 42/84\n"
"f 24/78 25/77 42/84\n"
"f 25/77 26/76 42/84\n"
"f 26/76 27/75 42/84\n"
"f 27/75 28/74 42/84\n"
"f 28/74 29/73 42/84\n"
"f 29/73 30/72 42/84\n"
"f 30/72 31/71 42/84\n"
"f 31/71 32/70 42/84\n"
"f 32/70 33/69 42/84\n"
"f 33/69 34/68 42/84\n"
"f 34/68 35/67 42/84\n"
"f 35/67 36/66 42/84\n"
"f 36/66 37/65 42/84\n"
"f 37/65 38/64 42/84\n"
"f 38/64 39/63 42/84\n"
"f 39/63 40/82 42/84\n"
"f 40/82 21/81 42/84\n"
"t smoothtriangles 0/0/1 catmark\n"
"\n";

View File

@ -0,0 +1,235 @@
//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
static const std::string catmark_smoothtris1 =
"# This file uses centimeters as units for non-parametric coordinates.\n"
"\n"
"v 0.951057 -1.000000 -0.309017\n"
"v 0.809018 -1.000000 -0.587786\n"
"v 0.587786 -1.000000 -0.809017\n"
"v 0.309017 -1.000000 -0.951057\n"
"v 0.000000 -1.000000 -1.000000\n"
"v -0.309017 -1.000000 -0.951057\n"
"v -0.587785 -1.000000 -0.809017\n"
"v -0.809017 -1.000000 -0.587785\n"
"v -0.951057 -1.000000 -0.309017\n"
"v -1.000000 -1.000000 0.000000\n"
"v -0.951057 -1.000000 0.309017\n"
"v -0.809017 -1.000000 0.587785\n"
"v -0.587785 -1.000000 0.809017\n"
"v -0.309017 -1.000000 0.951057\n"
"v -0.000000 -1.000000 1.000000\n"
"v 0.309017 -1.000000 0.951057\n"
"v 0.587785 -1.000000 0.809017\n"
"v 0.809017 -1.000000 0.587785\n"
"v 0.951057 -1.000000 0.309017\n"
"v 1.000000 -1.000000 0.000000\n"
"v 0.951057 1.000000 -0.309017\n"
"v 0.809018 1.000000 -0.587786\n"
"v 0.587786 1.000000 -0.809017\n"
"v 0.309017 1.000000 -0.951057\n"
"v 0.000000 1.000000 -1.000000\n"
"v -0.309017 1.000000 -0.951057\n"
"v -0.587785 1.000000 -0.809017\n"
"v -0.809017 1.000000 -0.587785\n"
"v -0.951057 1.000000 -0.309017\n"
"v -1.000000 1.000000 0.000000\n"
"v -0.951057 1.000000 0.309017\n"
"v -0.809017 1.000000 0.587785\n"
"v -0.587785 1.000000 0.809017\n"
"v -0.309017 1.000000 0.951057\n"
"v -0.000000 1.000000 1.000000\n"
"v 0.309017 1.000000 0.951057\n"
"v 0.587785 1.000000 0.809017\n"
"v 0.809017 1.000000 0.587785\n"
"v 0.951057 1.000000 0.309017\n"
"v 1.000000 1.000000 0.000000\n"
"v 0.000000 -1.000000 0.000000\n"
"v 0.000000 1.000000 0.000000\n"
"vt 0.648603 0.107966\n"
"vt 0.626409 0.064408\n"
"vt 0.591842 0.029841\n"
"vt 0.548284 0.007647\n"
"vt 0.500000 -0.000000\n"
"vt 0.451716 0.007647\n"
"vt 0.408159 0.029841\n"
"vt 0.373591 0.064409\n"
"vt 0.351397 0.107966\n"
"vt 0.343750 0.156250\n"
"vt 0.351397 0.204534\n"
"vt 0.373591 0.248091\n"
"vt 0.408159 0.282659\n"
"vt 0.451716 0.304853\n"
"vt 0.500000 0.312500\n"
"vt 0.548284 0.304853\n"
"vt 0.591841 0.282659\n"
"vt 0.626409 0.248091\n"
"vt 0.648603 0.204534\n"
"vt 0.656250 0.156250\n"
"vt 0.375000 0.312500\n"
"vt 0.387500 0.312500\n"
"vt 0.400000 0.312500\n"
"vt 0.412500 0.312500\n"
"vt 0.425000 0.312500\n"
"vt 0.437500 0.312500\n"
"vt 0.450000 0.312500\n"
"vt 0.462500 0.312500\n"
"vt 0.475000 0.312500\n"
"vt 0.487500 0.312500\n"
"vt 0.500000 0.312500\n"
"vt 0.512500 0.312500\n"
"vt 0.525000 0.312500\n"
"vt 0.537500 0.312500\n"
"vt 0.550000 0.312500\n"
"vt 0.562500 0.312500\n"
"vt 0.575000 0.312500\n"
"vt 0.587500 0.312500\n"
"vt 0.600000 0.312500\n"
"vt 0.612500 0.312500\n"
"vt 0.625000 0.312500\n"
"vt 0.375000 0.688440\n"
"vt 0.387500 0.688440\n"
"vt 0.400000 0.688440\n"
"vt 0.412500 0.688440\n"
"vt 0.425000 0.688440\n"
"vt 0.437500 0.688440\n"
"vt 0.450000 0.688440\n"
"vt 0.462500 0.688440\n"
"vt 0.475000 0.688440\n"
"vt 0.487500 0.688440\n"
"vt 0.500000 0.688440\n"
"vt 0.512500 0.688440\n"
"vt 0.525000 0.688440\n"
"vt 0.537500 0.688440\n"
"vt 0.550000 0.688440\n"
"vt 0.562500 0.688440\n"
"vt 0.575000 0.688440\n"
"vt 0.587500 0.688440\n"
"vt 0.600000 0.688440\n"
"vt 0.612500 0.688440\n"
"vt 0.625000 0.688440\n"
"vt 0.648603 0.795466\n"
"vt 0.626409 0.751908\n"
"vt 0.591842 0.717341\n"
"vt 0.548284 0.695147\n"
"vt 0.500000 0.687500\n"
"vt 0.451716 0.695147\n"
"vt 0.408159 0.717341\n"
"vt 0.373591 0.751909\n"
"vt 0.351397 0.795466\n"
"vt 0.343750 0.843750\n"
"vt 0.351397 0.892034\n"
"vt 0.373591 0.935591\n"
"vt 0.408159 0.970159\n"
"vt 0.451716 0.992353\n"
"vt 0.500000 1.000000\n"
"vt 0.548284 0.992353\n"
"vt 0.591841 0.970159\n"
"vt 0.626409 0.935591\n"
"vt 0.648603 0.892034\n"
"vt 0.656250 0.843750\n"
"vt 0.500000 0.150000\n"
"vt 0.500000 0.837500\n"
"f 1/21 2/22 21/42\n"
"f 21/42 2/22 22/43\n"
"f 2/22 3/23 22/43\n"
"f 22/43 3/23 23/44\n"
"f 3/23 4/24 23/44\n"
"f 23/44 4/24 24/45\n"
"f 4/24 5/25 24/45\n"
"f 24/45 5/25 25/46\n"
"f 5/25 6/26 25/46\n"
"f 25/46 6/26 26/47\n"
"f 6/26 7/27 26/47\n"
"f 26/47 7/27 27/48\n"
"f 7/27 8/28 27/48\n"
"f 27/48 8/28 28/49\n"
"f 8/28 9/29 28/49\n"
"f 28/49 9/29 29/50\n"
"f 9/29 10/30 29/50\n"
"f 29/50 10/30 30/51\n"
"f 10/30 11/31 30/51\n"
"f 30/51 11/31 31/52\n"
"f 11/31 12/32 31/52\n"
"f 31/52 12/32 32/53\n"
"f 12/32 13/33 32/53\n"
"f 32/53 13/33 33/54\n"
"f 13/33 14/34 33/54\n"
"f 33/54 14/34 34/55\n"
"f 14/34 15/35 34/55\n"
"f 34/55 15/35 35/56\n"
"f 15/35 16/36 35/56\n"
"f 35/56 16/36 36/57\n"
"f 16/36 17/37 36/57\n"
"f 36/57 17/37 37/58\n"
"f 17/37 18/38 37/58\n"
"f 37/58 18/38 38/59\n"
"f 18/38 19/39 38/59\n"
"f 38/59 19/39 39/60\n"
"f 19/39 20/40 39/60\n"
"f 39/60 20/40 40/61\n"
"f 20/40 1/41 40/61\n"
"f 40/61 1/41 21/62\n"
"f 2/2 1/1 41/83\n"
"f 3/3 2/2 41/83\n"
"f 4/4 3/3 41/83\n"
"f 5/5 4/4 41/83\n"
"f 6/6 5/5 41/83\n"
"f 7/7 6/6 41/83\n"
"f 8/8 7/7 41/83\n"
"f 9/9 8/8 41/83\n"
"f 10/10 9/9 41/83\n"
"f 11/11 10/10 41/83\n"
"f 12/12 11/11 41/83\n"
"f 13/13 12/12 41/83\n"
"f 14/14 13/13 41/83\n"
"f 15/15 14/14 41/83\n"
"f 16/16 15/15 41/83\n"
"f 17/17 16/16 41/83\n"
"f 18/18 17/17 41/83\n"
"f 19/19 18/18 41/83\n"
"f 20/20 19/19 41/83\n"
"f 1/1 20/20 41/83\n"
"f 21/81 22/80 42/84\n"
"f 22/80 23/79 42/84\n"
"f 23/79 24/78 42/84\n"
"f 24/78 25/77 42/84\n"
"f 25/77 26/76 42/84\n"
"f 26/76 27/75 42/84\n"
"f 27/75 28/74 42/84\n"
"f 28/74 29/73 42/84\n"
"f 29/73 30/72 42/84\n"
"f 30/72 31/71 42/84\n"
"f 31/71 32/70 42/84\n"
"f 32/70 33/69 42/84\n"
"f 33/69 34/68 42/84\n"
"f 34/68 35/67 42/84\n"
"f 35/67 36/66 42/84\n"
"f 36/66 37/65 42/84\n"
"f 37/65 38/64 42/84\n"
"f 38/64 39/63 42/84\n"
"f 39/63 40/82 42/84\n"
"f 40/82 21/81 42/84\n"
"t smoothtriangles 0/0/1 smooth\n"
"\n";