mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-30 23:30:07 +00:00
c399655dcc
Sync'ing the 'dev' branch with the 'feature_3.0dev' branch at commit 68c6d11fc36761ae1a5e6cdc3457be16f2e9704a The branch 'feature_3.0dev' is now locked and preserved for historical purposes.
150 lines
4.0 KiB
C++
150 lines
4.0 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 "objAnim.h"
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#include <../regression/common/shape_utils.h>
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#include <cassert>
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#include <cstdio>
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#include <cmath>
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#include <fstream>
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#include <sstream>
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#include <sstream>
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ObjAnim::ObjAnim() : _shape(0) {
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}
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ObjAnim::~ObjAnim() {
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delete _shape;
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}
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void
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ObjAnim::InterpolatePositions(float time, float * positions, int stride) const {
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assert(positions);
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if ( _positions.empty() or (not _shape)) {
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//printf("Error: InterpolatePositions on unfit ObjAnim instance\n");
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return;
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}
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int nkeys = GetNumKeyframes(),
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nverts = GetShape()->GetNumVertices();
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const float fps = 24.0f;
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float p = fmodf(time * fps, (float)nkeys);
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int key = (int)p;
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float b = p - key;
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for (int i = 0; i <nverts; ++i) {
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for (int j=0; j<3; ++j) {
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float p0 = _positions[ key ][i*3+j];
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float p1 = _positions[(key+1)%nkeys][i*3+j];
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positions[i*stride + j] = p0*(1-b) + p1*b;
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}
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}
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}
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ObjAnim const *
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ObjAnim::Create(std::vector<char const *> objFiles, bool axis) {
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ObjAnim * anim=0;
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Shape const * shape = 0;
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if (not objFiles.empty()) {
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anim = new ObjAnim;
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anim->_positions.reserve(objFiles.size());
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for (int i = 0; i < (int)objFiles.size(); ++i) {
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if (not objFiles[i]) {
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continue;
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}
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std::ifstream ifs(objFiles[i]);
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if (ifs) {
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std::stringstream ss;
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ss << ifs.rdbuf();
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ifs.close();
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printf("Reading %s\r", objFiles[i]);
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fflush(stdout);
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std::string str = ss.str();
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shape = Shape::parseObj(str.c_str(), kCatmark, axis);
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if (i==0) {
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anim->_shape = shape;
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anim->_positions.push_back(shape->verts);
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} else {
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if (shape->verts.size() != anim->_shape->verts.size()) {
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printf("Error: vertex count doesn't match (%s)\n", objFiles[i]);
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goto error;
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}
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if (shape->nvertsPerFace.size() != anim->_shape->nvertsPerFace.size()) {
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printf("Error: face vertex count array doesn't match (%s)\n", objFiles[i]);
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goto error;
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}
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if (shape->faceverts.size() != anim->_shape->faceverts.size()) {
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printf("Error: face vertices array doesn't match (%s)\n", objFiles[i]);
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goto error;
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}
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anim->_positions.push_back(shape->verts);
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delete shape;
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}
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} else {
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printf("Error in reading %s\n", objFiles[i]);
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goto error;
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}
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}
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printf("\n");
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}
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return anim;
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error:
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delete shape;
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delete anim;
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return 0;
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}
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