Kévin Dietrich
e9452f909c
simulations. This commits implements OpenVDB as an extra cache format in the Point Cache system for smoke simulations. Compilation with the library is turned off by default for now, and shall be enabled when the library is present. A documentation of its doings is available here: http:// wiki.blender.org/index.php/User:Kevindietrich/OpenVDBSmokeExport. A guide to compile OpenVDB can be found here (Linux): http:// wiki.blender.org/index.php?title=Dev:Doc/Building_Blender/Linux/ Dependencies_From_Source#OpenVDB Reviewers: sergey, lukastoenne, brecht, campbellbarton Reviewed By: brecht, campbellbarton Subscribers: galenb, Blendify, robocyte, Lapineige, bliblubli, jtheninja, lukasstockner97, dingto, brecht Differential Revision: https://developer.blender.org/D1721
137 lines
3.1 KiB
C++
137 lines
3.1 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2015 Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Kevin Dietrich
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "openvdb_reader.h"
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#include "openvdb_util.h"
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OpenVDBReader::OpenVDBReader()
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: m_meta_map(new openvdb::MetaMap)
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, m_file(NULL)
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{
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/* Although it is safe, it may not be good to have this here, could be done
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* once instead of everytime we read a file. */
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openvdb::initialize();
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}
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OpenVDBReader::~OpenVDBReader()
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{
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cleanupFile();
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}
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void OpenVDBReader::open(const openvdb::Name &filename)
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{
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cleanupFile();
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try {
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m_file = new openvdb::io::File(filename);
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m_file->setCopyMaxBytes(0);
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m_file->open();
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m_meta_map = m_file->getMetadata();
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}
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/* Mostly to catch exceptions related to Blosc not being supported. */
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catch (const openvdb::IoError &e) {
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std::cerr << e.what() << '\n';
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cleanupFile();
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}
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}
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void OpenVDBReader::floatMeta(const openvdb::Name &name, float &value) const
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{
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try {
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value = m_meta_map->metaValue<float>(name);
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}
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CATCH_KEYERROR;
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}
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void OpenVDBReader::intMeta(const openvdb::Name &name, int &value) const
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{
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try {
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value = m_meta_map->metaValue<int>(name);
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}
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CATCH_KEYERROR;
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}
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void OpenVDBReader::vec3sMeta(const openvdb::Name &name, float value[3]) const
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{
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try {
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openvdb::Vec3s meta_val = m_meta_map->metaValue<openvdb::Vec3s>(name);
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value[0] = meta_val.x();
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value[1] = meta_val.y();
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value[2] = meta_val.z();
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}
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CATCH_KEYERROR;
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}
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void OpenVDBReader::vec3IMeta(const openvdb::Name &name, int value[3]) const
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{
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try {
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openvdb::Vec3i meta_val = m_meta_map->metaValue<openvdb::Vec3i>(name);
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value[0] = meta_val.x();
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value[1] = meta_val.y();
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value[2] = meta_val.z();
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}
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CATCH_KEYERROR;
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}
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void OpenVDBReader::mat4sMeta(const openvdb::Name &name, float value[4][4]) const
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{
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try {
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openvdb::Mat4s meta_val = m_meta_map->metaValue<openvdb::Mat4s>(name);
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for (int i = 0; i < 4; ++i) {
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for (int j = 0; j < 4; ++j) {
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value[i][j] = meta_val[i][j];
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}
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}
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}
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CATCH_KEYERROR;
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}
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bool OpenVDBReader::hasGrid(const openvdb::Name &name) const
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{
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return m_file->hasGrid(name);
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}
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openvdb::GridBase::Ptr OpenVDBReader::getGrid(const openvdb::Name &name) const
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{
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return m_file->readGrid(name);
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}
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size_t OpenVDBReader::numGrids() const
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{
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return m_file->getGrids()->size();
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}
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void OpenVDBReader::cleanupFile()
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{
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if (m_file) {
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m_file->close();
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delete m_file;
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}
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}
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