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Asset.C
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#include <maya/MAnimControl.h>
#include <maya/MArrayDataBuilder.h>
#include <maya/MConditionMessage.h>
#include <maya/MDataHandle.h>
#include <maya/MFnCompoundAttribute.h>
#include <maya/MFnEnumAttribute.h>
#include <maya/MFnGenericAttribute.h>
#include <maya/MFnIntArrayData.h>
#include <maya/MFnMesh.h>
#include <maya/MFnNumericAttribute.h>
#include <maya/MFnTypedAttribute.h>
#include <maya/MGlobal.h>
#include <maya/MItMeshPolygon.h>
#include <maya/MPlugArray.h>
#include <maya/MTime.h>
#include "Asset.h"
#include "AssetNode.h"
#include "Input.h"
#include "OutputGeometryObject.h"
#include "OutputInstancerObject.h"
#include "OutputMaterial.h"
#include "util.h"
#include <algorithm>
#include <cassert>
#include <memory>
#include <unordered_map>
class AttrOperation : public Util::WalkParmOperation
{
public:
enum Mode
{
Get,
Set
};
AttrOperation(MDataBlock &dataBlock,
const Mode &mode,
const MFnDependencyNode &nodeFn,
const HAPI_NodeInfo &nodeInfo,
const std::vector<MObject> *attrs);
~AttrOperation();
virtual void pushFolder(const HAPI_ParmInfo &parmInfo);
virtual void popFolder();
virtual void pushMultiparm(const HAPI_ParmInfo &parmInfo);
virtual void nextMultiparm();
virtual void popMultiparm();
bool containsParm(const MString &attrName, const HAPI_ParmInfo &parm) const;
MString getAttrNameFromParm(const HAPI_ParmInfo &parm) const;
bool detectedMismatch();
protected:
std::vector<MDataHandle> myDataHandles;
std::vector<MPlug> myPlugs;
std::vector<bool> myExists;
std::vector<const HAPI_ParmInfo *> myParentParmInfos;
std::vector<bool> myIsMulti;
std::vector<MDataHandle> myMultiSizeDataHandles;
std::vector<MPlug> myMultiSizePlugs;
std::vector<bool> myHasMultiAttr;
std::vector<MArrayDataHandle> myMultiDataHandles;
std::vector<MPlug> myMultiPlugs;
std::vector<int> myMultiLogicalIndices;
MDataBlock &myDataBlock;
const Mode myMode;
const MFnDependencyNode &myNodeFn;
const HAPI_NodeInfo &myNodeInfo;
const std::vector<MObject> *myAttrs;
bool myMismatch;
};
AttrOperation::AttrOperation(MDataBlock &dataBlock,
const Mode &mode,
const MFnDependencyNode &nodeFn,
const HAPI_NodeInfo &nodeInfo,
const std::vector<MObject> *attrs)
: myDataBlock(dataBlock),
myMode(mode),
myNodeFn(nodeFn),
myNodeInfo(nodeInfo),
myAttrs(attrs),
myMismatch(false)
{
MDataHandle dataHandle;
MPlug plug;
plug = myNodeFn.findPlug(Util::getParmAttrPrefix(), true);
if (myMode == AttrOperation::Get)
{
dataHandle = myDataBlock.outputValue(plug);
}
else if (myMode == AttrOperation::Set)
{
dataHandle = myDataBlock.inputValue(plug);
}
myDataHandles.push_back(dataHandle);
myPlugs.push_back(plug);
myExists.push_back(true);
myParentParmInfos.push_back(NULL);
}
AttrOperation::~AttrOperation()
{
myDataHandles.pop_back();
myPlugs.pop_back();
myExists.pop_back();
myParentParmInfos.pop_back();
}
void
AttrOperation::pushFolder(const HAPI_ParmInfo &parmInfo)
{
MStatus status;
MDataHandle dataHandle;
MPlug plug;
bool exists = false;
MDataHandle &parentDataHandle = myDataHandles.back();
MPlug &parentPlug = myPlugs.back();
bool parentExists = myExists.back();
// const HAPI_ParmInfo* &parentParmInfo = myParentParmInfos.back();
if (parentExists)
{
MString folderAttrName = getAttrNameFromParm(parmInfo);
MObject folderAttrObj = myNodeFn.attribute(folderAttrName);
if (!folderAttrObj.isNull())
{
plug = parentPlug.child(folderAttrObj, &status);
if (status)
{
exists = true;
}
}
if (exists)
{
// When we got the parentDataHandle, Maya doesn't actually evaluate
// the child compound attributes. So if we get the child dataHandle
// with child(), it could still be dirty. Workaround it by calling
// MDataBlock's inputValue()/outputValue(). Unfortunately, this
// still doesn't work for the case where attributes are under a
// multi attribute.
if (myIsMulti.size() == 0)
{
if (myMode == AttrOperation::Get)
{
dataHandle = myDataBlock.outputValue(plug);
}
else if (myMode == AttrOperation::Set)
{
dataHandle = myDataBlock.inputValue(plug);
}
}
else
{
dataHandle = parentDataHandle.child(folderAttrObj);
}
}
}
myDataHandles.push_back(dataHandle);
myPlugs.push_back(plug);
myExists.push_back(exists);
myParentParmInfos.push_back(&parmInfo);
}
void
AttrOperation::popFolder()
{
// MDataHandle &dataHandle = myDataHandles.back();
// MPlug &plug = myPlugs.back();
// bool exists = myExists.back();
myDataHandles.pop_back();
myPlugs.pop_back();
myExists.pop_back();
myParentParmInfos.pop_back();
}
void
AttrOperation::pushMultiparm(const HAPI_ParmInfo &parmInfo)
{
MStatus status;
// In a multiparm context, these variables are used to store the element
// attribute.
MDataHandle dataHandle;
MPlug plug;
bool exists = false;
// These parameters are pushed only for multiparms, and not created for the
// other parameters (e.g. folders and leaf).
// Since MArrayDataHandle doesn't have a default constructor, we construct
// an invalid MArrayDataHandle this way.
bool isMulti = false;
MDataHandle multiSizeDataHandle;
MPlug multiSizePlug;
bool hasMultiAttr = false;
MArrayDataHandle multiDataHandle(dataHandle);
MPlug multiPlug;
int multiLogicalIndex = -1;
MDataHandle &parentDataHandle = myDataHandles.back();
MPlug &parentPlug = myPlugs.back();
bool parentExists = myExists.back();
// const HAPI_ParmInfo* &parentParmInfo = myParentParmInfos.back();
if (parentExists)
{
MString multiAttrName = getAttrNameFromParm(parmInfo);
MObject multiAttrObj = myNodeFn.attribute(multiAttrName);
// Ramp has no __multiSize attribute.
if (parmInfo.rampType != HAPI_RAMPTYPE_INVALID)
{
isMulti = true;
}
else
{
MObject multiSizeAttrObj =
myNodeFn.attribute(multiAttrName + "__multiSize");
if (!multiSizeAttrObj.isNull())
{
multiSizePlug = parentPlug.child(multiSizeAttrObj, &status);
if (status)
{
isMulti = true;
}
}
if (isMulti)
{
multiSizeDataHandle = parentDataHandle.child(multiSizeAttrObj);
}
}
// multiAttrObj might not exist if the current instanceCount is 0
if (isMulti && !multiAttrObj.isNull())
{
multiPlug = parentPlug.child(multiAttrObj, &status);
if (status)
{
hasMultiAttr = true;
}
if (hasMultiAttr)
{
multiDataHandle =
MArrayDataHandle(parentDataHandle.child(multiAttrObj));
}
}
}
myIsMulti.push_back(isMulti);
myMultiSizeDataHandles.push_back(multiSizeDataHandle);
myMultiSizePlugs.push_back(multiSizePlug);
myHasMultiAttr.push_back(hasMultiAttr);
myMultiDataHandles.push_back(multiDataHandle);
myMultiPlugs.push_back(multiPlug);
myMultiLogicalIndices.push_back(multiLogicalIndex);
myDataHandles.push_back(dataHandle);
myPlugs.push_back(plug);
myExists.push_back(exists);
myParentParmInfos.push_back(&parmInfo);
// initializes the first element
nextMultiparm();
}
void
AttrOperation::nextMultiparm()
{
MStatus status;
MDataHandle &dataHandle = myDataHandles.back();
MPlug &plug = myPlugs.back();
bool exists = myExists.back();
const HAPI_ParmInfo *&parentParmInfo = myParentParmInfos.back();
// bool isMulti = myIsMulti.back();
// MDataHandle &multiSizeDataHandle = myMultiSizeDataHandles.back();
// MPlug &multiSizePlug = myMultiSizePlugs.back();
bool hasMultiAttr = myHasMultiAttr.back();
MArrayDataHandle &multiDataHandle = myMultiDataHandles.back();
MPlug &multiPlug = myMultiPlugs.back();
int &multiLogicalIndex = myMultiLogicalIndices.back();
if (hasMultiAttr)
{
// For ramps, use next(), instead of jumpToElement(), because the array
// is sparse and the indicies don't matter.
if (parentParmInfo->rampType != HAPI_RAMPTYPE_INVALID)
{
if (multiLogicalIndex != -1)
{
status = multiDataHandle.next();
}
multiLogicalIndex++;
}
else
{
multiLogicalIndex++;
status = multiDataHandle.jumpToArrayElement(multiLogicalIndex);
}
exists = status;
if (exists)
{
if (myMode == AttrOperation::Get)
{
dataHandle = multiDataHandle.outputValue();
}
else if (myMode == AttrOperation::Set)
{
dataHandle = multiDataHandle.inputValue();
}
plug = multiPlug.elementByPhysicalIndex(multiLogicalIndex);
}
}
myExists.back() = exists;
}
void
AttrOperation::popMultiparm()
{
// MDataHandle &dataHandle = myDataHandles.back();
// MPlug &plug = myPlugs.back();
// bool exists = myExists.back();
// const HAPI_ParmInfo* &parentParmInfo = myParentParmInfos.back();
// bool isMulti = myIsMulti.back();
// MDataHandle &multiSizeDataHandle = myMultiSizeDataHandles.back();
// MPlug &multiSizePlug = myMultiSizePlugs.back();
// bool hasMultiAttr = myHasMultiAttr.back();
// MArrayDataHandle &multiDataHandle = myMultiDataHandles.back();
// MPlug &multiPlug = myMultiPlugs.back();
// int &multiLogicalIndex = myMultiLogicalIndices.back();
myIsMulti.pop_back();
myMultiSizeDataHandles.pop_back();
myMultiSizePlugs.pop_back();
myHasMultiAttr.pop_back();
myMultiDataHandles.pop_back();
myMultiPlugs.pop_back();
myMultiLogicalIndices.pop_back();
myDataHandles.pop_back();
myPlugs.pop_back();
myExists.pop_back();
myParentParmInfos.pop_back();
}
bool
AttrOperation::containsParm(const MString &attrName,
const HAPI_ParmInfo &parm) const
{
if (!myAttrs)
{
return true;
}
MPlug parmPlug = myNodeFn.findPlug(attrName, true);
for (std::vector<MObject>::const_iterator iter = myAttrs->begin();
iter != myAttrs->end(); iter++)
{
MPlug plug = myNodeFn.findPlug(*iter, true);
if (parmPlug == plug)
{
return true;
}
// If the parm is a tuple, then we also need to check the parent plug.
// We need to check if it's int, float, or string, because non-values
// like folders also use parm.size.
if ((HoudiniApi::ParmInfo_IsInt(&parm) || HoudiniApi::ParmInfo_IsFloat(&parm) ||
HoudiniApi::ParmInfo_IsString(&parm)) &&
parm.size > 1 && plug.isChild() && parmPlug == plug.parent())
{
return true;
}
}
return false;
}
MString
AttrOperation::getAttrNameFromParm(const HAPI_ParmInfo &parmInfo) const
{
MString name;
if (AssetNode *assetNode = dynamic_cast<AssetNode *>(myNodeFn.userNode()))
{
name = assetNode->getAsset()->getAttrNameFromParm(parmInfo);
}
return name;
}
bool
AttrOperation::detectedMismatch()
{
return myMismatch;
}
// Helper class for caching the names of parms. This avoids expensive
// re-fetching of parm names during an update
//
class ParmNameCache
{
public:
bool cacheEnabled() const
{
return
// false &&
myCacheEnabled &&
(MAnimControl::isPlaying() ||
MConditionMessage::getConditionState("playblasting"));
}
void clearCache() { myStringCache.clear(); }
void enableCache(bool enabled) { myCacheEnabled = enabled; }
MString getParmTemplateName(const HAPI_ParmInfo &parm) const
{
if (cacheEnabled())
{
auto &&iter = myStringCache.find(parm);
if (iter != myStringCache.end())
{
return iter->second;
}
}
return MString();
}
void cacheName(const HAPI_ParmInfo &parm, const MString &name)
{
if (cacheEnabled())
myStringCache[parm] = name;
}
private:
struct ParmInfoEqual
{
bool operator()(const HAPI_ParmInfo &rhs,
const HAPI_ParmInfo &lhs) const
{
return rhs.id == lhs.id && rhs.parentId == lhs.parentId &&
rhs.childIndex == lhs.childIndex && rhs.type == lhs.type;
}
};
struct ParmInfoHasher
{
std::size_t operator()(const HAPI_ParmInfo &k) const
{
using std::hash;
using std::size_t;
size_t res = 17;
res = res * 31 + hash<HAPI_ParmId>()(k.id);
res = res * 31 + hash<HAPI_ParmId>()(k.parentId);
res = res * 31 + hash<int>()(k.childIndex);
res = res * 31 + hash<int>()(k.type);
return res;
}
};
typedef std::
unordered_map<HAPI_ParmInfo, MString, ParmInfoHasher, ParmInfoEqual>
StringCacheMap;
StringCacheMap myStringCache;
bool myCacheEnabled = true;
};
Asset::Asset(const MString &otlFilePath, const MString &assetName)
: // initialize values here because instantiating the asset could error out
myAssetInputs(NULL)
{
myParmNameCache = std::unique_ptr<ParmNameCache>(new ParmNameCache());
HAPI_Result hapiResult = HAPI_RESULT_SUCCESS;
HoudiniApi::AssetInfo_Init(&myAssetInfo);
HoudiniApi::NodeInfo_Init(&myNodeInfo);
// load the otl
int libraryId = -1;
hapiResult = HoudiniApi::LoadAssetLibraryFromFile(
Util::theHAPISession.get(), otlFilePath.asChar(), true, &libraryId);
if (HAPI_FAIL(hapiResult))
{
DISPLAY_WARNING("Could not load OTL file: ^1s\n"
"Attempting to instantiate asset anyway.",
otlFilePath);
DISPLAY_WARNING_HAPI_STATUS_CALL();
}
// get the list of assets in the otl
std::vector<HAPI_StringHandle> assetNamesSH;
if (libraryId >= 0)
{
int assetCount = 0;
hapiResult = HoudiniApi::GetAvailableAssetCount(
Util::theHAPISession.get(), libraryId, &assetCount);
CHECK_HAPI(hapiResult);
assetNamesSH.resize(assetCount);
hapiResult = HoudiniApi::GetAvailableAssets(Util::theHAPISession.get(),
libraryId, &assetNamesSH.front(),
assetCount);
CHECK_HAPI(hapiResult);
}
// find the asset in the otl
if (assetNamesSH.size())
{
bool foundAsset = false;
for (unsigned int i = 0; i < assetNamesSH.size(); i++)
{
if (Util::HAPIString(assetNamesSH[i]) == assetName)
{
foundAsset = true;
}
}
if (!foundAsset)
{
DISPLAY_WARNING("Could not find asset: ^1s\n"
"in OTL file: ^2s\n"
"Attempting to instantiate asset anyway.",
assetName, otlFilePath);
}
}
// instantiate the asset
HAPI_NodeId nodeId = -1;
{
Util::PythonInterpreterLock pythonInterpreterLock;
hapiResult = HoudiniApi::CreateNode(Util::theHAPISession.get(), -1,
assetName.asChar(), NULL, false, &nodeId);
if (HAPI_FAIL(hapiResult))
{
DISPLAY_ERROR("Could not instantiate asset: ^1s\n"
"in OTL file: ^2s\n",
assetName, otlFilePath);
GET_HAPI_STATUS_CALL();
DISPLAY_ERROR(hapiStatus);
return;
}
if (!Util::statusCheckLoop())
{
DISPLAY_ERROR("Could not instantiate asset: ^1s\n"
"in OTL file: ^2s\n",
assetName, otlFilePath);
GET_HAPI_STATUS_COOK();
DISPLAY_ERROR(hapiStatus);
// Do nothing else if the asset is invalid.
return;
}
}
hapiResult = HoudiniApi::GetAssetInfo(
Util::theHAPISession.get(), nodeId, &myAssetInfo);
CHECK_HAPI(hapiResult);
myAssetName = Util::HAPIString(myAssetInfo.fullOpNameSH);
myAssetHelpText = Util::HAPIString(myAssetInfo.helpTextSH);
myAssetHelpURL = Util::HAPIString(myAssetInfo.helpURLSH);
hapiResult = HoudiniApi::GetNodeInfo(
Util::theHAPISession.get(), nodeId, &myNodeInfo);
CHECK_HAPI(hapiResult);
// Warn the user if the OTL path is not what was originally requested.
if (Util::HAPIString(myAssetInfo.filePathSH) != otlFilePath)
{
DISPLAY_WARNING("The asset: ^1s\n"
"was instantiated from: ^2s\n"
"but the expected path was: ^3s",
assetName,
MString(Util::HAPIString(myAssetInfo.filePathSH)),
otlFilePath);
}
myAssetInputs = new Inputs(myNodeInfo.id);
myAssetInputs->setNumInputs(myNodeInfo.inputCount);
}
Asset::~Asset()
{
for (OutputObjects::const_iterator iter = myObjects.begin();
iter != myObjects.end(); iter++)
{
delete *iter;
}
myObjects.clear();
delete myAssetInputs;
for (OutputMaterials::const_iterator iter = myMaterials.begin();
iter != myMaterials.end(); iter++)
{
delete *iter;
}
myMaterials.clear();
if (!Util::theHAPISession.get())
return;
int idToDelete = myNodeInfo.id;
if (myNodeInfo.type == HAPI_NODETYPE_SOP)
idToDelete = myNodeInfo.parentId;
if (idToDelete >= 0)
{
CHECK_HAPI(HoudiniApi::DeleteNode(Util::theHAPISession.get(), idToDelete));
}
}
bool
Asset::isValid() const
{
return myAssetInfo.nodeId >= 0;
}
MString
Asset::getOTLFilePath() const
{
if (!isValid())
{
return MString();
}
return Util::HAPIString(myAssetInfo.filePathSH);
}
MString
Asset::getAssetName() const
{
if (!isValid())
{
return MString();
}
return myAssetName;
}
MString
Asset::getAssetHelpText() const
{
if (!isValid())
{
return MString();
}
return myAssetHelpText;
}
MString
Asset::getAssetHelpURL() const
{
if (!isValid())
{
return MString();
}
return myAssetHelpURL;
}
MString
Asset::getRelativePath(HAPI_NodeId id)
{
HAPI_StringHandle relativePathHandle;
CHECK_HAPI(HoudiniApi::GetNodePath(
Util::theHAPISession.get(), id, myNodeInfo.id, &relativePathHandle));
return Util::HAPIString(relativePathHandle);
}
void
Asset::resetSimulation()
{
assert(myNodeInfo.id >= 0);
HoudiniApi::ResetSimulation(Util::theHAPISession.get(), myNodeInfo.id);
}
MString
Asset::getCookMessages()
{
Util::PythonInterpreterLock pythonInterpreterLock;
// Trigger a cook so that the asset will become the "last cooked asset",
// because HAPI_STATUS_COOK_RESULT only consider the "last cooked asset".
// In most cases, this shouldn't do any actual cooking.
HoudiniApi::CookNode(Util::theHAPISession.get(), myNodeInfo.id, NULL);
GET_HAPI_STATUS_COOK();
return hapiStatus;
}
void
Asset::update()
{
assert(myNodeInfo.id >= 0);
HAPI_Result hapiResult;
// Get the Object nodes
std::vector<HAPI_NodeId> nodeIds;
if (myNodeInfo.type == HAPI_NODETYPE_OBJ)
{
int objectCount = 0;
hapiResult = HoudiniApi::ComposeChildNodeList(
Util::theHAPISession.get(), myAssetInfo.objectNodeId,
HAPI_NODETYPE_OBJ, HAPI_NODEFLAGS_OBJ_GEOMETRY, true, &objectCount);
CHECK_HAPI(hapiResult);
myIsObjSubnet = objectCount > 0;
if (myIsObjSubnet)
{
nodeIds.resize(objectCount);
hapiResult = HoudiniApi::GetComposedChildNodeList(
Util::theHAPISession.get(), myAssetInfo.objectNodeId,
&nodeIds.front(), objectCount);
CHECK_HAPI(hapiResult);
}
else
{
// Note that this can be either an empty Object subnet, or an actual
// Object.
nodeIds.push_back(myAssetInfo.objectNodeId);
}
}
else if (myNodeInfo.type == HAPI_NODETYPE_SOP)
{
nodeIds.push_back(myAssetInfo.objectNodeId);
}
// Create the OutputObjects
if (myObjects.size() != nodeIds.size())
{
for (OutputObjects::const_iterator iter = myObjects.begin();
iter != myObjects.end(); iter++)
{
delete *iter;
}
myObjects.resize(nodeIds.size());
for (size_t i = 0; i < myObjects.size(); i++)
{
myObjects[i] = OutputObject::createObject(nodeIds[i]);
}
}
}
void
Asset::computeInstancerObjects(const MPlug &plug,
MDataBlock &data,
MIntArray &instancedObjIds,
MStringArray &instancedObjNames,
AssetNodeOptions::AccessorDataBlock &options,
bool &needToSyncOutputs,
const bool needToRecomputeOutputData)
{
MStatus stat;
MPlug instancersPlug = plug.child(AssetNode::outputInstancers);
int newSize = std::count_if(
myObjects.begin(), myObjects.end(), [](OutputObject *obj) {
return obj->type() == OutputObject::OBJECT_TYPE_INSTANCER;
});
MArrayDataHandle instancersHandle = data.outputArrayValue(instancersPlug);
if (instancersHandle.elementCount() != (unsigned int)newSize)
{
Util::resizeArrayDataHandle(instancersHandle, newSize);
needToSyncOutputs = true;
}
int instancerIndex = 0;
for (OutputObjects::const_iterator iter = myObjects.begin();
iter != myObjects.end(); iter++)
{
OutputObject *obj = *iter;
if (obj->type() == OutputObject::OBJECT_TYPE_INSTANCER)
{
MPlug instancerElemPlug =
instancersPlug.elementByLogicalIndex(instancerIndex);
CHECK_MSTATUS(instancersHandle.jumpToArrayElement(instancerIndex));
MDataHandle instancerHandle = instancersHandle.outputValue();
stat = dynamic_cast<OutputInstancerObject *>(obj)->compute(
myTime, instancerElemPlug, data, instancerHandle, options,
needToSyncOutputs, needToRecomputeOutputData);
if (MS::kSuccess == stat)
{
// collect all the objects that are being instanced
MStringArray instNames =
dynamic_cast<OutputInstancerObject *>(obj)
->getUniqueInstObjNames();
for (unsigned int j = 0; j < instNames.length(); ++j)
{
instancedObjNames.append(instNames[j]);
}
MIntArray instIds = dynamic_cast<OutputInstancerObject *>(obj)
->getInstancedObjIds();
for (unsigned int j = 0; j < instIds.length(); ++j)
{
instancedObjIds.append(instIds[j]);
}
}
instancerIndex++;
}
}
instancersHandle.setAllClean();
data.setClean(instancersPlug);
}
void
Asset::computeGeometryObjects(const MPlug &plug,
MDataBlock &data,
const MIntArray &instancedObjIds,
const MStringArray &instancedObjNames,
AssetNodeOptions::AccessorDataBlock &options,
bool &needToSyncOutputs,
const bool needToRecomputeOutputData)
{
MStatus stat;
MPlug objectsPlug = plug.child(AssetNode::outputObjects);
MArrayDataHandle objectsHandle = data.outputArrayValue(objectsPlug);
if (objectsHandle.elementCount() != myObjects.size())
{
Util::resizeArrayDataHandle(objectsHandle, myObjects.size());
needToSyncOutputs = true;
}
for (unsigned int i = 0; i < myObjects.size(); i++)
{
OutputObject *obj = myObjects[i];
MPlug objectPlug = objectsPlug.elementByLogicalIndex(i);
CHECK_MSTATUS(objectsHandle.jumpToArrayElement(i));
MDataHandle objectHandle = objectsHandle.outputValue();
if (obj->type() == OutputObject::OBJECT_TYPE_GEOMETRY)
{
dynamic_cast<OutputGeometryObject *>(obj)->compute(
myTime, objectPlug, data, objectHandle, instancedObjIds,
instancedObjNames, options, needToSyncOutputs,
needToRecomputeOutputData);
}
}
objectsHandle.setAllClean();
data.setClean(objectsPlug);
}
void
Asset::computeMaterial(const MPlug &plug,
MDataBlock &data,
bool bakeTextures,
bool &needToSyncOutputs)
{
MStatus status;
MPlug materialsPlug = plug.child(AssetNode::outputMaterials);
size_t numElements = materialsPlug.numElements();
if (numElements == 0)
return;
if (myMaterials.size() < numElements)
{
myMaterials.reserve(numElements);
for (size_t i = myMaterials.size(); i < numElements; i++)
{
myMaterials.push_back(new OutputMaterial(myAssetInfo.nodeId));
}
}
for (size_t i = 0; i < numElements; i++)
{
MPlug materialPlug = materialsPlug.elementByLogicalIndex(i);
MDataHandle materialHandle = data.outputValue(materialPlug);
myMaterials[i]->compute(
myTime, materialPlug, data, materialHandle, bakeTextures);
}
}
MTime
Asset::getTime() const
{
return myTime;
}
void
Asset::setTime(const MTime &mayaTime)
{
myTime = mayaTime;
// Houdini's "frame 1" is "0 seconds", but Maya's "frame 0" is "0 seconds".
// So we need to offset the time by 1.
MTime hapiTime = myTime - MTime(1, MTime::uiUnit());
float hapiTimeSeconds = (float)hapiTime.as(MTime::kSeconds);
HoudiniApi::SetTime(Util::theHAPISession.get(), hapiTimeSeconds);
}
void
Asset::setInputs(const MPlug &plug, MDataBlock &data)
{
assert(myNodeInfo.id >= 0);
MStatus status;
myAssetInputs->compute(data);
for (int i = 0; i < myNodeInfo.inputCount; i++)
{
MPlug elementPlug = plug.elementByLogicalIndex(i);
MPlug inputNodeIdPlug = elementPlug.child(AssetNode::inputNodeId);
MDataHandle inputNodeIdHandle = data.inputValue(inputNodeIdPlug);
HAPI_NodeId inputNodeId = -1;
// only use inputNodeId if it's coming from a connection
if (!Util::plugSource(inputNodeIdPlug).isNull())
{
inputNodeId = inputNodeIdHandle.asInt();
}
if (inputNodeId < 0)
{
HoudiniApi::DisconnectNodeInput(
Util::theHAPISession.get(), myNodeInfo.id, i);
continue;
}
CHECK_HAPI(HoudiniApi::ConnectNodeInput(
Util::theHAPISession.get(), myNodeInfo.id, i, inputNodeId, 0));
}
}
MStatus
Asset::compute(const MPlug &plug,
MDataBlock &data,
AssetNodeOptions::AccessorDataBlock &options,
bool &needToSyncOutputs,
const bool needToRecomputeOutputData)
{
assert(myNodeInfo.id >= 0);
HAPI_Result hapiResult;
MStatus stat(MS::kSuccess);
if (MGlobal::optionVarIntValue("houdiniEngineDisableCooking") == 1)
return stat;
{
Util::PythonInterpreterLock pythonInterpreterLock;
HAPI_CookOptions cookOptions;
HoudiniApi::CookOptions_Init(&cookOptions);
cookOptions.splitGeosByGroup = options.splitGeosByGroup();
cookOptions.cookTemplatedGeos = options.outputTemplatedGeometries();
if (options.useInstancerNode())
{
// Particle instancer cannot instance other particle instancer. So
// we can only do flatten.
cookOptions.packedPrimInstancingMode =
HAPI_PACKEDPRIM_INSTANCING_MODE_FLAT;
}
else
{
cookOptions.packedPrimInstancingMode =
HAPI_PACKEDPRIM_INSTANCING_MODE_HIERARCHY;
}