mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-02 08:00:10 +00:00
5a51f31104
- Renamed common/vtr_utils to common/far_utils. - Renamed all mentions of Vtr in the sources of tests and examples.
251 lines
8.3 KiB
C++
251 lines
8.3 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#include <cassert>
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#include <cstdio>
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#include "../../regression/common/hbr_utils.h"
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#include "../../regression/common/far_utils.h"
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#include "../../regression/common/cmp_utils.h"
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#include "init_shapes.h"
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//
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// Regression testing matching Far to Hbr (default CPU implementation)
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//
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// Notes:
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// - precision is currently held at 1e-6
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//
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// - results cannot be bitwise identical as some vertex interpolations
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// are not happening in the same order.
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//
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// - only vertex interpolation is being tested at the moment.
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//
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#define PRECISION 1e-6
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static bool g_debugmode = false;
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//------------------------------------------------------------------------------
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// Vertex class implementation
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struct xyzVV {
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xyzVV() { /* _pos[0]=_pos[1]=_pos[2]=0.0f; */ }
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xyzVV( int /*i*/ ) { }
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xyzVV( float x, float y, float z ) { _pos[0]=x; _pos[1]=y; _pos[2]=z; }
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xyzVV( const xyzVV & src ) { _pos[0]=src._pos[0]; _pos[1]=src._pos[1]; _pos[2]=src._pos[2]; }
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~xyzVV( ) { }
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void AddWithWeight(const xyzVV& src, float weight) {
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_pos[0]+=weight*src._pos[0];
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_pos[1]+=weight*src._pos[1];
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_pos[2]+=weight*src._pos[2];
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}
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void AddVaryingWithWeight(const xyzVV& , float) { }
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void Clear( void * =0 ) { _pos[0]=_pos[1]=_pos[2]=0.0f; }
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void SetPosition(float x, float y, float z) { _pos[0]=x; _pos[1]=y; _pos[2]=z; }
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void ApplyVertexEdit(const OpenSubdiv::HbrVertexEdit<xyzVV> & edit) {
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const float *src = edit.GetEdit();
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switch(edit.GetOperation()) {
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case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Set:
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_pos[0] = src[0];
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_pos[1] = src[1];
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_pos[2] = src[2];
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break;
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case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Add:
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_pos[0] += src[0];
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_pos[1] += src[1];
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_pos[2] += src[2];
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break;
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case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Subtract:
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_pos[0] -= src[0];
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_pos[1] -= src[1];
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_pos[2] -= src[2];
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break;
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}
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}
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void ApplyMovingVertexEdit(const OpenSubdiv::HbrMovingVertexEdit<xyzVV> &) { }
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const float * GetPos() const { return _pos; }
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bool operator==(xyzVV const & other) const {
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if (_pos[0]==other._pos[0] and
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_pos[1]==other._pos[1] and
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_pos[2]==other._pos[2]) {
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return true;
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}
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return false;
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}
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private:
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float _pos[3];
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};
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//------------------------------------------------------------------------------
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typedef OpenSubdiv::HbrMesh<xyzVV> Hmesh;
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//------------------------------------------------------------------------------
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typedef OpenSubdiv::Far::TopologyRefiner FarTopologyRefiner;
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typedef OpenSubdiv::Far::TopologyRefinerFactory<Shape> FarTopologyRefinerFactory;
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//------------------------------------------------------------------------------
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#ifdef foo
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static void
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printVertexData(std::vector<xyzVV> const & hbrBuffer, std::vector<xyzVV> const & farBuffer) {
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assert(hbrBuffer.size()==farBuffer.size());
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for (int i=0; i<(int)hbrBuffer.size(); ++i) {
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float const * hbr = hbrBuffer[i].GetPos(),
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* far = farBuffer[i].GetPos();
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printf("%3d %d (%f %f %f) (%f %f %f)\n", i, hbrBuffer[i]==farBuffer[i],
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hbr[0], hbr[1], hbr[2],
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far[0], far[1], far[2]);
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}
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}
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#endif
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//------------------------------------------------------------------------------
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static int
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checkMesh(ShapeDesc const & desc, int maxlevel) {
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static char const * schemes[] = { "Bilinear", "Catmark", "Loop" };
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printf("- %-25s ( %-8s ): \n", desc.name.c_str(), schemes[desc.scheme]);
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int count=0;
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float deltaAvg[3] = {0.0f, 0.0f, 0.0f},
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deltaCnt[3] = {0.0f, 0.0f, 0.0f};
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std::vector<xyzVV> hbrVertexData,
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farVertexData;
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Hmesh * hmesh = interpolateHbrVertexData<xyzVV>(
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desc.data.c_str(), desc.scheme, maxlevel);
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FarTopologyRefiner * refiner =
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InterpolateFarVertexData<xyzVV>(
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desc.data.c_str(), desc.scheme, maxlevel, farVertexData);
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// copy Hbr vertex data into a re-ordered buffer (for easier comparison)
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GetReorderedHbrVertexData(*refiner, *hmesh, &hbrVertexData);
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int nverts = (int)farVertexData.size();
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for (int i=0; i<nverts; ++i) {
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xyzVV & hbrVert = hbrVertexData[i],
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& farVert = farVertexData[i];
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#ifdef __INTEL_COMPILER // remark #1572: floating-point equality and inequality comparisons are unreliable
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#pragma warning disable 1572
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#endif
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if ( hbrVert.GetPos()[0] != farVert.GetPos()[0] )
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deltaCnt[0]++;
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if ( hbrVert.GetPos()[1] != farVert.GetPos()[1] )
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deltaCnt[1]++;
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if ( hbrVert.GetPos()[2] != farVert.GetPos()[2] )
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deltaCnt[2]++;
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#ifdef __INTEL_COMPILER
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#pragma warning enable 1572
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#endif
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float delta[3] = { hbrVert.GetPos()[0] - farVert.GetPos()[0],
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hbrVert.GetPos()[1] - farVert.GetPos()[1],
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hbrVert.GetPos()[2] - farVert.GetPos()[2] };
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deltaAvg[0]+=delta[0];
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deltaAvg[1]+=delta[1];
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deltaAvg[2]+=delta[2];
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float dist = sqrtf( delta[0]*delta[0]+delta[1]*delta[1]+delta[2]*delta[2]);
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if ( dist > PRECISION ) {
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if (not g_debugmode)
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printf("// HbrVertex<T> %d fails : dist=%.10f (%.10f %.10f %.10f)"
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" (%.10f %.10f %.10f)\n", i, dist, hbrVert.GetPos()[0],
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hbrVert.GetPos()[1],
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hbrVert.GetPos()[2],
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farVert.GetPos()[0],
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farVert.GetPos()[1],
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farVert.GetPos()[2] );
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count++;
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}
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}
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if (deltaCnt[0])
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deltaAvg[0]/=deltaCnt[0];
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if (deltaCnt[1])
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deltaAvg[1]/=deltaCnt[1];
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if (deltaCnt[2])
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deltaAvg[2]/=deltaCnt[2];
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if (not g_debugmode) {
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printf(" delta ratio : (%d/%d %d/%d %d/%d)\n", (int)deltaCnt[0], nverts,
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(int)deltaCnt[1], nverts,
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(int)deltaCnt[2], nverts );
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printf(" average delta : (%.10f %.10f %.10f)\n", deltaAvg[0],
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deltaAvg[1],
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deltaAvg[2] );
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if (count==0)
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printf(" success !\n");
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}
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return count;
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}
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//------------------------------------------------------------------------------
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int main(int /* argc */, char ** /* argv */) {
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int levels=5, total=0;
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initShapes();
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if (g_debugmode)
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printf("[ ");
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else
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printf("precision : %f\n",PRECISION);
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for (int i=0; i<(int)g_shapes.size(); ++i) {
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total+=checkMesh(g_shapes[i], levels);
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}
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if (g_debugmode)
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printf("]\n");
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else {
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if (total==0)
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printf("All tests passed.\n");
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else
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printf("Total failures : %d\n", total);
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}
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}
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//------------------------------------------------------------------------------
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