mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-13 04:20:10 +00:00
272 lines
8.5 KiB
C++
272 lines
8.5 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 "License");
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// you may not use this file except in compliance with the License
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// and the following modification to it: Section 6 Trademarks.
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// deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the
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// trade names, trademarks, service marks, or product names of the
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// Licensor and its affiliates, except as required for reproducing
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// the content of the NOTICE file.
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//
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// You may obtain a copy of the 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific
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// language governing permissions and limitations under the
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// License.
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//
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#include <stdio.h>
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#include <hbr/mesh.h>
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#include <hbr/face.h>
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#include <hbr/vertex.h>
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#include <hbr/halfedge.h>
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#include <hbr/bilinear.h>
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#include <hbr/catmark.h>
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#include <hbr/loop.h>
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#include "../common/shape_utils.h"
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//
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// Regression testing matching Hbr to a pre-generated data-set
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//
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// Precision is currently held at bit-wise identical
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static int g_AllowWeakRegression=1;
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static int g_StrictRegressionFailure=0;
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#define STRICT_PRECISION 0
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#define WEAK_PRECISION 1e-6
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//------------------------------------------------------------------------------
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// Vertex class implementation
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struct xyzVV {
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xyzVV() { }
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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, void * =0 ) {
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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, void * =0 ) { }
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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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private:
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float _pos[3];
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};
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//------------------------------------------------------------------------------
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class xyzFV;
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typedef OpenSubdiv::HbrMesh<xyzVV> xyzmesh;
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typedef OpenSubdiv::HbrFace<xyzVV> xyzface;
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typedef OpenSubdiv::HbrVertex<xyzVV> xyzvertex;
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typedef OpenSubdiv::HbrHalfedge<xyzVV> xyzhalfedge;
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typedef OpenSubdiv::HbrFaceOperator<xyzVV> xyzFaceOperator;
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typedef OpenSubdiv::HbrVertexOperator<xyzVV> xyzVertexOperator;
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//------------------------------------------------------------------------------
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#include "./init_shapes.h"
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static shape * readShape( char const * fname ) {
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FILE * handle = fopen( fname, "rt" );
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if (not handle) {
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printf("Could not open \"%s\" - aborting.\n", fname);
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exit(0);
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}
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fseek( handle, 0, SEEK_END );
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size_t size = ftell(handle);
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fseek( handle, 0, SEEK_SET );
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char * shapeStr = new char[size+1];
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if ( fread( shapeStr, size, 1, handle)!=1 ) {
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printf("Error reading \"%s\" - aborting.\n", fname);
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exit(0);
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}
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fclose(handle);
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shapeStr[size]='\0';
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return shape::parseShape( shapeStr, 1 );
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}
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#define STR(x) x
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#ifdef HBR_BASELINE_DIR
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std::string g_baseline_path = STR(HBR_BASELINE_DIR);
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#else
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std::string g_baseline_path;
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#endif
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//------------------------------------------------------------------------------
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static int checkMesh( shaperec const & r, int levels ) {
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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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xyzmesh * mesh = simpleHbr<xyzVV>(r.data.c_str(), r.scheme, 0);
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int firstface=0, lastface=mesh->GetNumFaces(),
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firstvert=0, lastvert=mesh->GetNumVertices(), nverts;
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printf("- %s (scheme=%d)\n", r.name.c_str(), r.scheme);
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for (int l=0; l<levels; ++l ) {
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std::stringstream fname;
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fname << g_baseline_path << r.name << "_level" << l << ".obj";
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shape * sh = readShape( fname.str().c_str() );
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assert(sh);
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// subdivide up to current level
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for (int i=firstface; i<lastface; ++i) {
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xyzface * f = mesh->GetFace(i);
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f->Refine();
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}
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firstface = lastface;
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lastface = mesh->GetNumFaces();
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//nfaces = lastface - firstface;
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firstvert = lastvert;
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lastvert = mesh->GetNumVertices();
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nverts = lastvert - firstvert;
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for (int i=firstvert; i<lastvert; ++i) {
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const float * apos = mesh->GetVertex(i)->GetData().GetPos(),
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* bpos = &sh->verts[(i-firstvert)*3];
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if ( apos[0] != bpos[0] )
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deltaCnt[0]++;
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if ( apos[1] != bpos[1] )
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deltaCnt[1]++;
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if ( apos[2] != bpos[2] )
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deltaCnt[2]++;
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float delta[3] = { apos[0] - bpos[0],
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apos[1] - bpos[1],
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apos[2] - bpos[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 > STRICT_PRECISION ) {
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if(dist < WEAK_PRECISION && g_AllowWeakRegression) {
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g_StrictRegressionFailure=1;
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}
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else {
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printf("// HbrVertex<T> %d fails : dist=%.10f (%.10f %.10f %.10f)"
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" (%.10f %.10f %.10f)\n", i, dist, apos[0],
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apos[1],
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apos[2],
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bpos[0],
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bpos[1],
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bpos[2] );
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count++;
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}
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}
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}
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delete sh;
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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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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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delete mesh;
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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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if(argc==2 && strcmp(argv[1],"-S")==0)
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g_AllowWeakRegression=0;
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initShapes();
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printf("Baseline Path : \"%s\"\n", g_baseline_path.c_str());
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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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if (total==0) {
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printf("All tests passed.\n");
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if(g_StrictRegressionFailure)
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printf("Some tests were not bit-wise accurate.\nRerun with -S for strict regression\n");
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}
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else
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printf("Total failures : %d\n", total);
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}
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