AbcExport/AbcExport.cpp

AbcExport/AbcExport.cpp
//-*****************************************************************************
//
// Copyright (c) 2009-2014,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic, nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//-*****************************************************************************
#include "AbcExport.h"
#include "AbcWriteJob.h"
#include "MayaUtility.h"
#include <maya/MFnPlugin.h>
#include <maya/MFileObject.h>
#include <maya/MItDependencyNodes.h>
#include <fstream>
namespace AbcA = Alembic::AbcCoreAbstract;
AbcExport::AbcExport()
{
}
AbcExport::~AbcExport()
{
}
MSyntax AbcExport::createSyntax()
{
MSyntax syntax;
syntax.addFlag("-v", "-verbose", MSyntax::kNoArg);
syntax.addFlag("-h", "-help", MSyntax::kNoArg);
syntax.addFlag("-prs", "-preRollStartFrame", MSyntax::kDouble);
syntax.addFlag("-duf", "-dontSkipUnwrittenFrames", MSyntax::kNoArg);
syntax.addFlag("-j", "-jobArg", MSyntax::kString);
syntax.makeFlagMultiUse("-j");
syntax.enableQuery(true);
syntax.enableEdit(false);
return syntax;
}
void* AbcExport::creator()
{
return new AbcExport();
}
MStatus AbcExport::doIt(const MArgList & args)
{
try
{
MStatus status;
MTime oldCurTime = MAnimControl::currentTime();
MArgParser argData(syntax(), args, &status);
if (argData.isFlagSet("help"))
{
MGlobal::displayInfo(util::getHelpText());
return MS::kSuccess;
}
bool verbose = argData.isFlagSet("verbose");
// If skipFrame is true, when going through the playback range of the
// scene, as much frames are skipped when possible. This could cause
// a problem for, time dependent solutions like
// particle system / hair simulation
bool skipFrame = true;
if (argData.isFlagSet("dontSkipUnwrittenFrames"))
skipFrame = false;
double startEvaluationTime = DBL_MAX;
if (argData.isFlagSet("preRollStartFrame"))
{
double startAt = 0.0;
argData.getFlagArgument("preRollStartFrame", 0, startAt);
startEvaluationTime = startAt;
}
unsigned int jobSize = argData.numberOfFlagUses("jobArg");
if (jobSize == 0)
return status;
// the frame range we will be iterating over for all jobs,
// includes frames which are not skipped and the startAt offset
std::set<double> allFrameRange;
// this will eventually hold only the animated jobs.
// its a list because we will be removing jobs from it
std::list < AbcWriteJobPtr > jobList;
for (unsigned int jobIndex = 0; jobIndex < jobSize; jobIndex++)
{
JobArgs jobArgs;
MArgList jobArgList;
argData.getFlagArgumentList("jobArg", jobIndex, jobArgList);
MString jobArgsStr = jobArgList.asString(0);
MStringArray jobArgsArray;
{
// parse the job arguments
// e.g. -perFrameCallbackMel "print \"something\"" will be splitted to
// [0] -perFrameCallbackMel
// [1] print "something"
enum State {
kArgument, // parsing an argument (not quoted)
kDoubleQuotedString, // parsing a double quoted string
kSingleQuotedString, // parsing a single quoted string
};
State state = kArgument;
MString stringBuffer;
for (unsigned int charIdx = 0; charIdx < jobArgsStr.numChars();
charIdx++)
{
MString ch = jobArgsStr.substringW(charIdx, charIdx);
switch (state)
{
case kArgument:
if (ch == " ")
{
// space terminates the current argument
if (stringBuffer.length() > 0) {
jobArgsArray.append(stringBuffer);
stringBuffer.clear();
}
// goto another argument
state = kArgument;
}
else if (ch == "\"")
{
if (stringBuffer.length() > 0)
{
// double quote is part of the argument
stringBuffer += ch;
}
else
{
// goto double quoted string
state = kDoubleQuotedString;
}
}
else if (ch == "'")
{
if (stringBuffer.length() > 0)
{
// single quote is part of the argument
stringBuffer += ch;
}
else
{
// goto single quoted string
state = kSingleQuotedString;
}
}
else
{
stringBuffer += ch;
}
break;
case kDoubleQuotedString:
// double quote terminates the current string
if (ch == "\"")
{
jobArgsArray.append(stringBuffer);
stringBuffer.clear();
state = kArgument;
}
else if (ch == "\\")
{
// escaped character
MString nextCh = (++charIdx < jobArgsStr.numChars())
? jobArgsStr.substringW(charIdx, charIdx) : "\\";
if (nextCh == "n") stringBuffer += "\n";
else if (nextCh == "t") stringBuffer += "\t";
else if (nextCh == "r") stringBuffer += "\r";
else if (nextCh == "\\") stringBuffer += "\\";
else if (nextCh == "'") stringBuffer += "'";
else if (nextCh == "\"") stringBuffer += "\"";
else stringBuffer += nextCh;
}
else
{
stringBuffer += ch;
}
break;
case kSingleQuotedString:
// single quote terminates the current string
if (ch == "'")
{
jobArgsArray.append(stringBuffer);
stringBuffer.clear();
state = kArgument;
}
else if (ch == "\\")
{
// escaped character
MString nextCh = (++charIdx < jobArgsStr.numChars())
? jobArgsStr.substringW(charIdx, charIdx) : "\\";
if (nextCh == "n") stringBuffer += "\n";
else if (nextCh == "t") stringBuffer += "\t";
else if (nextCh == "r") stringBuffer += "\r";
else if (nextCh == "\\") stringBuffer += "\\";
else if (nextCh == "'") stringBuffer += "'";
else if (nextCh == "\"") stringBuffer += "\"";
else stringBuffer += nextCh;
}
else
{
stringBuffer += ch;
}
break;
}
}
// the rest of the argument
if (stringBuffer.length() > 0)
{
jobArgsArray.append(stringBuffer);
}
}
// the frame range within this job
std::vector< FrameRangeArgs > frameRanges(1);
frameRanges.back().startTime = oldCurTime.value();
frameRanges.back().endTime = oldCurTime.value();
frameRanges.back().strideTime = 1.0;
bool hasRange = false;
bool hasRoot = false;
bool sampleGeo = true; // whether or not to subsample geometry
std::string fileName;
bool asOgawa = true;
unsigned int numJobArgs = jobArgsArray.length();
for (unsigned int i = 0; i < numJobArgs; ++i)
{
MString arg = jobArgsArray[i];
arg.toLowerCase();
if (arg == "-f" || arg == "-file")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError("File incorrectly specified.");
return MS::kFailure;
}
fileName = jobArgsArray[++i].asChar();
}
else if (arg == "-fr" || arg == "-framerange")
{
if (i+2 >= numJobArgs || !jobArgsArray[i+1].isDouble() ||
!jobArgsArray[i+2].isDouble())
{
MGlobal::displayError("Frame Range incorrectly specified.");
return MS::kFailure;
}
// this is not the first -frameRange argument, we are going
// to add one more frame range to the frame range array.
if (hasRange)
{
frameRanges.push_back(FrameRangeArgs());
}
hasRange = true;
frameRanges.back().startTime = jobArgsArray[++i].asDouble();
frameRanges.back().endTime = jobArgsArray[++i].asDouble();
// make sure start frame is smaller or equal to endTime
if (frameRanges.back().startTime > frameRanges.back().endTime)
{
std::swap(frameRanges.back().startTime,
frameRanges.back().endTime);
}
}
else if (arg == "-frs" || arg == "-framerelativesample")
{
if (i+1 >= numJobArgs || !jobArgsArray[i+1].isDouble())
{
MGlobal::displayError(
"Frame Relative Sample incorrectly specified.");
return MS::kFailure;
}
frameRanges.back().shutterSamples.insert(
jobArgsArray[++i].asDouble());
}
else if (arg == "-nn" || arg == "-nonormals")
{
jobArgs.noNormals = true;
}
else if (arg == "-pr" || arg == "-preroll")
{
frameRanges.back().preRoll = true;
}
else if (arg == "-ro" || arg == "-renderableonly")
{
jobArgs.excludeInvisible = true;
}
else if (arg == "-s" || arg == "-step")
{
if (i+1 >= numJobArgs || !jobArgsArray[i+1].isDouble())
{
MGlobal::displayError("Step incorrectly specified.");
return MS::kFailure;
}
frameRanges.back().strideTime = jobArgsArray[++i].asDouble();
}
else if (arg == "-sl" || arg == "-selection")
{
jobArgs.useSelectionList = true;
}
else if (arg == "-sn" || arg == "-stripnamespaces")
{
if (i+1 >= numJobArgs || !jobArgsArray[i+1].isUnsigned())
{
// the strip all namespaces case
// so we pick a very LARGE number
jobArgs.stripNamespace = 0xffffffff;
}
else
{
jobArgs.stripNamespace = jobArgsArray[++i].asUnsigned();
}
}
else if (arg == "-uv" || arg == "-uvwrite")
{
jobArgs.writeUVs = true;
}
else if (arg == "-wcs" || arg == "-writecolorsets")
{
jobArgs.writeColorSets = true;
}
else if (arg == "-wfs" || arg == "-writefacesets")
{
jobArgs.writeFaceSets = true;
}
else if (arg == "-wfg" || arg == "-wholeframegeo")
{
sampleGeo = false;
}
else if (arg == "-ws" || arg == "-worldspace")
{
jobArgs.worldSpace = true;
}
else if (arg == "-wuvs" || arg == "-writeuvsets")
{
jobArgs.writeUVSets = true;
}
else if (arg == "-wv" || arg == "-writevisibility")
{
jobArgs.writeVisibility = true;
}
else if (arg == "-wc" || arg == "-writecreases")
{
jobArgs.writeCreases = true;
}
else if (arg == "-mfc" || arg == "-melperframecallback")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"melPerFrameCallback incorrectly specified.");
return MS::kFailure;
}
jobArgs.melPerFrameCallback = jobArgsArray[++i].asChar();
}
else if (arg == "-pfc" || arg == "-pythonperframecallback")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"pythonPerFrameCallback incorrectly specified.");
return MS::kFailure;
}
jobArgs.pythonPerFrameCallback = jobArgsArray[++i].asChar();
}
else if (arg == "-mpc" || arg == "-melpostjobcallback")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"melPostJobCallback incorrectly specified.");
return MS::kFailure;
}
jobArgs.melPostCallback = jobArgsArray[++i].asChar();
}
else if (arg == "-ppc" || arg == "-pythonpostjobcallback")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"pythonPostJobCallback incorrectly specified.");
return MS::kFailure;
}
jobArgs.pythonPostCallback = jobArgsArray[++i].asChar();
}
// geomArbParams - attribute filtering stuff
else if (arg == "-atp" || arg == "-attrprefix")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"attrPrefix incorrectly specified.");
return MS::kFailure;
}
jobArgs.prefixFilters.push_back(jobArgsArray[++i].asChar());
}
else if (arg == "-a" || arg == "-attr")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"attr incorrectly specified.");
return MS::kFailure;
}
jobArgs.attribs.insert(jobArgsArray[++i].asChar());
}
// userProperties - attribute filtering stuff
else if (arg == "-uatp" || arg == "-userattrprefix")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"userAttrPrefix incorrectly specified.");
return MS::kFailure;
}
jobArgs.userPrefixFilters.push_back(jobArgsArray[++i].asChar());
}
else if (arg == "-u" || arg == "-userattr")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"userAttr incorrectly specified.");
return MS::kFailure;
}
jobArgs.userAttribs.insert(jobArgsArray[++i].asChar());
}
else if (arg == "-rt" || arg == "-root")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"root incorrectly specified.");
return MS::kFailure;
}
hasRoot = true;
MString root = jobArgsArray[++i];
MSelectionList sel;
if (sel.add(root) != MS::kSuccess)
{
MString warn = root;
warn += " could not be select, skipping.";
MGlobal::displayWarning(warn);
continue;
}
unsigned int numRoots = sel.length();
for (unsigned int j = 0; j < numRoots; ++j)
{
MDagPath path;
if (sel.getDagPath(j, path) != MS::kSuccess)
{
MString warn = path.fullPathName();
warn += " (part of ";
warn += root;
warn += " ) not a DAG Node, skipping.";
MGlobal::displayWarning(warn);
continue;
}
jobArgs.dagPaths.insert(path);
}
}
else if (arg == "-ef" || arg == "-eulerfilter")
{
jobArgs.filterEulerRotations = true;
}
else if (arg == "-df" || arg == "-dataformat")
{
if (i+1 >= numJobArgs)
{
MGlobal::displayError(
"dataFormat incorrectly specified.");
return MS::kFailure;
}
MString dataFormat = jobArgsArray[++i];
dataFormat.toLowerCase();
if (dataFormat == "hdf")
{
asOgawa = false;
}
else if (dataFormat == "ogawa")
{
asOgawa = true;
}
}
else
{
MString warn = "Ignoring unsupported flag: ";
warn += jobArgsArray[i];
MGlobal::displayWarning(warn);
}
} // for i
if (fileName == "")
{
MString error = "-file not specified.";
MGlobal::displayError(error);
return MS::kFailure;
}
{
MString fileRule, expandName;
MString alembicFileRule = "alembicCache";
MString alembicFilePath = "cache/alembic";
MString queryFileRuleCmd;
queryFileRuleCmd.format("workspace -q -fre \"^1s\"",
alembicFileRule);
MString queryFolderCmd;
queryFolderCmd.format("workspace -en `workspace -q -fre \"^1s\"`",
alembicFileRule);
// query the file rule for alembic cache
MGlobal::executeCommand(queryFileRuleCmd, fileRule);
if (fileRule.length() > 0)
{
// we have alembic file rule, query the folder
MGlobal::executeCommand(queryFolderCmd, expandName);
}
else
{
// alembic file rule does not exist, create it
MString addFileRuleCmd;
addFileRuleCmd.format("workspace -fr \"^1s\" \"^2s\"",
alembicFileRule, alembicFilePath);
MGlobal::executeCommand(addFileRuleCmd);
// save the workspace. maya may discard file rules on exit
MGlobal::executeCommand("workspace -s");
// query the folder
MGlobal::executeCommand(queryFolderCmd, expandName);
}
// resolve the expanded file rule
if (expandName.length() == 0)
{
expandName = alembicFilePath;
}
// get the path to the alembic file rule
MFileObject directory;
directory.setRawFullName(expandName);
MString directoryName = directory.resolvedFullName();
// make sure the cache folder exists
if (!directory.exists())
{
// create the cache folder
MString createFolderCmd;
createFolderCmd.format("sysFile -md \"^1s\"", directoryName);
MGlobal::executeCommand(createFolderCmd);
}
// resolve the relative path
MFileObject absoluteFile;
absoluteFile.setRawFullName(fileName.c_str());
#if MAYA_API_VERSION < 201300
if (absoluteFile.resolvedFullName() !=
absoluteFile.expandedFullName())
{
#else
if (!MFileObject::isAbsolutePath(fileName.c_str())) {
#endif
// this is a relative path
MString absoluteFileName = directoryName + "/" +
fileName.c_str();
absoluteFile.setRawFullName(absoluteFileName);
fileName = absoluteFile.resolvedFullName().asChar();
}
else
{
fileName = absoluteFile.resolvedFullName().asChar();
}
// check the path must exist before writing
MFileObject absoluteFilePath;
absoluteFilePath.setRawFullName(absoluteFile.path());
if (!absoluteFilePath.exists()) {
MString error;
error.format("Path ^1s does not exist!", absoluteFilePath.resolvedFullName());
MGlobal::displayError(error);
return MS::kFailure;
}
// check the file is used by any AlembicNode in the scene
MItDependencyNodes dgIter(MFn::kPluginDependNode);
for (; !dgIter.isDone(); dgIter.next()) {
MFnDependencyNode alembicNode(dgIter.thisNode());
if (alembicNode.typeName() != "AlembicNode") {
continue;
}
MPlug abcFilePlug = alembicNode.findPlug("abc_File");
if (abcFilePlug.isNull()) {
continue;
}
MFileObject alembicFile;
alembicFile.setRawFullName(abcFilePlug.asString());
if (!alembicFile.exists()) {
continue;
}
if (alembicFile.resolvedFullName() == absoluteFile.resolvedFullName()) {
MString error = "Can't export to an Alembic file which is in use.";
MGlobal::displayError(error);
return MS::kFailure;
}
}
std::ofstream ofs(fileName.c_str());
if (!ofs.is_open()) {
MString error = MString("Can't write to file: ") + fileName.c_str();
MGlobal::displayError(error);
return MS::kFailure;
}
ofs.close();
}
// if -frameRelativeSample argument is not specified for a frame range,
// we are assuming a -frameRelativeSample 0.0
for (std::vector<FrameRangeArgs>::iterator range =
frameRanges.begin(); range != frameRanges.end(); ++range)
{
if (range->shutterSamples.empty())
range->shutterSamples.insert(0.0);
}
if (jobArgs.prefixFilters.empty())
{
jobArgs.prefixFilters.push_back("ABC_");
}
// the list of frame ranges for sampling
std::vector<FrameRangeArgs> sampleRanges;
std::vector<FrameRangeArgs> preRollRanges;
for (std::vector<FrameRangeArgs>::const_iterator range =
frameRanges.begin(); range != frameRanges.end(); ++range)
{
if (range->preRoll)
preRollRanges.push_back(*range);
else
sampleRanges.push_back(*range);
}
// the list of frames written into the abc file
std::set<double> geoSamples;
std::set<double> transSamples;
for (std::vector<FrameRangeArgs>::const_iterator range =
sampleRanges.begin(); range != sampleRanges.end(); ++range)
{
for (double frame = range->startTime;
frame <= range->endTime;
frame += range->strideTime)
{
for (std::set<double>::const_iterator shutter =
range->shutterSamples.begin();
shutter != range->shutterSamples.end(); ++shutter)
{
double curFrame = *shutter + frame;
if (!sampleGeo)
{
double intFrame = (double)(int)(
curFrame >= 0 ? curFrame + .5 : curFrame - .5);
// only insert samples that are close to being an integer
if (fabs(curFrame - intFrame) < 1e-4)
{
geoSamples.insert(curFrame);
}
}
else
{
geoSamples.insert(curFrame);
}
transSamples.insert(curFrame);
}
}
if (geoSamples.empty())
{
geoSamples.insert(range->startTime);
}
if (transSamples.empty())
{
transSamples.insert(range->startTime);
}
}
bool isAcyclic = false;
if (sampleRanges.empty())
{
// no frame ranges or all frame ranges are pre-roll ranges
hasRange = false;
geoSamples.insert(frameRanges.back().startTime);
transSamples.insert(frameRanges.back().startTime);
}
else
{
// check if the time range is even (cyclic)
// otherwise, we will use acyclic
// sub frames pattern
std::vector<double> pattern(
sampleRanges.begin()->shutterSamples.begin(),
sampleRanges.begin()->shutterSamples.end());
std::transform(pattern.begin(), pattern.end(), pattern.begin(),
std::bind2nd(std::plus<double>(),
sampleRanges.begin()->startTime));
// check the frames against the pattern
std::vector<double> timeSamples(
transSamples.begin(), transSamples.end());
for (size_t i = 0; i < timeSamples.size(); i++)
{
// next pattern
if (i % pattern.size() == 0 && i / pattern.size() > 0)
{
std::transform(pattern.begin(), pattern.end(),
pattern.begin(), std::bind2nd(std::plus<double>(),
sampleRanges.begin()->strideTime));
}
// pattern mismatch, we use acyclic time sampling type
if (timeSamples[i] != pattern[i % pattern.size()])
{
isAcyclic = true;
break;
}
}
}
// the list of frames to pre-roll
std::set<double> preRollSamples;
for (std::vector<FrameRangeArgs>::const_iterator range =
preRollRanges.begin(); range != preRollRanges.end(); ++range)
{
for (double frame = range->startTime;
frame <= range->endTime;
frame += range->strideTime)
{
for (std::set<double>::const_iterator shutter =
range->shutterSamples.begin();
shutter != range->shutterSamples.end(); ++shutter)
{
double curFrame = *shutter + frame;
preRollSamples.insert(curFrame);
}
}
if (preRollSamples.empty())
{
preRollSamples.insert(range->startTime);
}
}
if (jobArgs.dagPaths.size() > 1)
{
// check for validity of the DagPath relationships complexity : n^2
util::ShapeSet::const_iterator m, n;
util::ShapeSet::const_iterator end = jobArgs.dagPaths.end();
for (m = jobArgs.dagPaths.begin(); m != end; )
{
MDagPath path1 = *m;
m++;
for (n = m; n != end; n++)
{
MDagPath path2 = *n;
if (util::isAncestorDescendentRelationship(path1,path2))
{
MString errorMsg = path1.fullPathName();
errorMsg += " and ";
errorMsg += path2.fullPathName();
errorMsg += " have an ancestor relationship.";
MGlobal::displayError(errorMsg);
return MS::kFailure;
}
} // for n
} // for m
}
// no root is specified, and we aren't using a selection
// so we'll try to translate the whole Maya scene by using all
// children of the world as roots.
else if (!hasRoot && !jobArgs.useSelectionList)
{
MSelectionList sel;
#if MAYA_API_VERSION >= 201100
sel.add("|*", true);
#else
// older versions of Maya will not be able to find top level nodes
// within namespaces
sel.add("|*");
#endif
unsigned int numRoots = sel.length();
for (unsigned int i = 0; i < numRoots; ++i)
{
MDagPath path;
sel.getDagPath(i, path);
jobArgs.dagPaths.insert(path);
}
}
else if (hasRoot && jobArgs.dagPaths.empty())
{
MString errorMsg = "No valid root nodes were specified.";
MGlobal::displayError(errorMsg);
return MS::kFailure;
}
else if (jobArgs.useSelectionList)
{
MSelectionList activeList;
MGlobal::getActiveSelectionList(activeList);
if (activeList.length() == 0)
{
MString errorMsg =
"-selection specified but nothing is actively selected.";
MGlobal::displayError(errorMsg);
return MS::kFailure;
}
}
AbcA::TimeSamplingPtr transTime, geoTime;
if (hasRange)
{
if (isAcyclic)
{
// acyclic, uneven time sampling
// e.g. [0.8, 1, 1.2], [2.8, 3, 3.2], .. not continuous
// [0.8, 1, 1.2], [1.7, 2, 2.3], .. shutter different
std::vector<double> samples(
transSamples.begin(), transSamples.end());
std::transform(samples.begin(), samples.end(), samples.begin(),
std::bind2nd(std::multiplies<double>(), util::spf()));
transTime.reset(new AbcA::TimeSampling(AbcA::TimeSamplingType(
AbcA::TimeSamplingType::kAcyclic), samples));
}
else
{
// cyclic, even time sampling between time periods
// e.g. [0.8, 1, 1.2], [1.8, 2, 2.2], ...
std::vector<double> samples;
double startTime = sampleRanges[0].startTime;
double strideTime = sampleRanges[0].strideTime;
for (std::set<double>::const_iterator shutter =
sampleRanges[0].shutterSamples.begin();
shutter != sampleRanges[0].shutterSamples.end();
++shutter)
{
samples.push_back((startTime + *shutter) * util::spf());
}
if (samples.size() > 1)
{
Alembic::Util::uint32_t numSamples =
static_cast<Alembic::Util::uint32_t>(samples.size());
transTime.reset(
new AbcA::TimeSampling(AbcA::TimeSamplingType(
numSamples, strideTime * util::spf()), samples));
}
// uniform sampling
else
{
transTime.reset(new AbcA::TimeSampling(
strideTime * util::spf(), samples[0]));
}
}
}
else
{
// time ranges are not specified
transTime.reset(new AbcA::TimeSampling());
}
if (sampleGeo || !hasRange)
{
geoTime = transTime;
}
else
{
// sampling geo on whole frames
if (isAcyclic)
{
// acyclic, uneven time sampling
std::vector<double> samples(
geoSamples.begin(), geoSamples.end());
// one more sample for setup()
if (*transSamples.begin() != *geoSamples.begin())
samples.insert(samples.begin(), *transSamples.begin());
std::transform(samples.begin(), samples.end(), samples.begin(),
std::bind2nd(std::multiplies<double>(), util::spf()));
geoTime.reset(new AbcA::TimeSampling(AbcA::TimeSamplingType(
AbcA::TimeSamplingType::kAcyclic), samples));
}
else
{
double geoStride = sampleRanges[0].strideTime;
if (geoStride < 1.0)
geoStride = 1.0;
double geoStart = *geoSamples.begin() * util::spf();
geoTime.reset(new AbcA::TimeSampling(
geoStride * util::spf(), geoStart));
}
}
AbcWriteJobPtr job(new AbcWriteJob(fileName.c_str(), asOgawa,
transSamples, transTime, geoSamples, geoTime, jobArgs));
jobList.push_front(job);
// make sure we add additional whole frames, if we arent skipping
// the inbetween ones
if (!skipFrame && !allFrameRange.empty())
{
double localMin = *(transSamples.begin());
std::set<double>::iterator last = transSamples.end();
last--;
double localMax = *last;
double globalMin = *(allFrameRange.begin());
last = allFrameRange.end();
last--;
double globalMax = *last;
// if the min of our current frame range is beyond
// what we know about, pad a few more frames
if (localMin > globalMax)
{
for (double f = globalMax; f < localMin; f++)
{
allFrameRange.insert(f);
}
}
// if the max of our current frame range is beyond
// what we know about, pad a few more frames
if (localMax < globalMin)
{
for (double f = localMax; f < globalMin; f++)
{
allFrameRange.insert(f);
}
}
}
// right now we just copy over the translation samples since
// they are guaranteed to contain all the geometry samples
allFrameRange.insert(transSamples.begin(), transSamples.end());
// copy over the pre-roll samples
allFrameRange.insert(preRollSamples.begin(), preRollSamples.end());
}
// add extra evaluation run up, if necessary
if (startEvaluationTime != DBL_MAX && !allFrameRange.empty())
{
double firstFrame = *allFrameRange.begin();
for (double f = startEvaluationTime; f < firstFrame; ++f)
{
allFrameRange.insert(f);
}
}
std::set<double>::iterator it = allFrameRange.begin();
std::set<double>::iterator itEnd = allFrameRange.end();
MComputation computation;
computation.beginComputation();
// loop through every frame in the list, if a job has that frame in it's
// list of transform or shape frames, then it will write out data and
// call the perFrameCallback, if that frame is also the last one it has
// to work on then it will also call the postCallback.
// If it doesn't have this frame, then it does nothing
for (; it != itEnd; it++)
{
if (verbose)
{
double frame = *it;
MString info;
info = frame;
MGlobal::displayInfo(info);
}
MGlobal::viewFrame(*it);
std::list< AbcWriteJobPtr >::iterator j = jobList.begin();
std::list< AbcWriteJobPtr >::iterator jend = jobList.end();
while (j != jend)
{
if (computation.isInterruptRequested())
return MS::kFailure;
bool lastFrame = (*j)->eval(*it);
if (lastFrame)
{
j = jobList.erase(j);
}
else
j++;
}
}
computation.endComputation();
// set the time back
MGlobal::viewFrame(oldCurTime);
return MS::kSuccess;
}
catch (Alembic::Util::Exception & e)
{
MString theError("Alembic Exception encountered: ");
theError += e.what();
MGlobal::displayError(theError);
return MS::kFailure;
}
catch (std::exception & e)
{
MString theError("std::exception encountered: ");
theError += e.what();
MGlobal::displayError(theError);
return MS::kFailure;
}
}
MStatus initializePlugin(MObject obj)
{
MStatus status;
MFnPlugin plugin(obj, "Alembic", ABCEXPORT_VERSION, "Any");
status = plugin.registerCommand(
"AbcExport", AbcExport::creator,
AbcExport::createSyntax );
if (!status)
{
status.perror("registerCommand");
}
MGlobal::executeCommandOnIdle("AlembicCreateUI");
MString info = "AbcExport v";
info += ABCEXPORT_VERSION;
info += " using ";
info += Alembic::Abc::GetLibraryVersion().c_str();
MGlobal::displayInfo(info);
return status;
}
MStatus uninitializePlugin(MObject obj)
{
MStatus status;
MFnPlugin plugin(obj);
status = plugin.deregisterCommand("AbcExport");
if (!status)
{
status.perror("deregisterCommand");
}
MGlobal::executeCommandOnIdle("AlembicDeleteUI");
return status;
}
Please send us your comment about this page