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// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962
/**********************************************************************
*<
FILE: shaveVraySharedFunctions.h
DESCRIPTION: Various shared functions
HISTORY: created 21-08-2008 ( as part of 3ds Max + VRay hair shaders)
merged 31-03-2010
*>
**********************************************************************/
#include "shaveVraySharedFunctions.h"
#include <maya/MItDependencyGraph.h>
#include <maya/MDagPath.h>
#include <maya/MArgList.h>
#include <maya/MSelectionList.h>
#include <maya/MFnDependencyNode.h>
#include <maya/MFnDagNode.h>
#include <maya/MPlugArray.h>
#include <maya/MItSelectionList.h>
#include <maya/MItDependencyGraph.h>
#include <maya/MItDependencyNodes.h>
#include <assert.h>
#ifdef USE_VRAY
MObject getNodeByName(const char *nodeName)
{
MString name(nodeName);
MSelectionList sList;
MGlobal::getSelectionListByName(name, sList);
if (sList.length() < 1) return MObject();
MObject obj;
sList.getDependNode(0, obj);
return obj;
}
bool getSourcePlugFromPlug(const MPlug destPlug, MPlug &plug)
{
MPlugArray plugSources;
destPlug.connectedTo(plugSources, true, false);
bool foundSource = false;
int len=plugSources.length();
if (len == 1)
{
foundSource = true;
plug = plugSources[0];
}
return foundSource;
}
bool FindCurrentShaveShape(MObject &shShape)
{
MStatus stat = MStatus::kSuccess;
MDagPath nodePath;
MObject component;
MSelectionList list;
MGlobal::getActiveSelectionList( list );
for ( MItSelectionList listIter( list ); !listIter.isDone(); listIter.next() )
{
MObject depNode;
listIter.getDependNode( depNode );
if( FindConnectedShaveShape ( depNode, shShape))
return true;
if(depNode.hasFn( MFn::kDagNode ))
{
MFnDagNode dagFn(depNode);
for(unsigned int i = 0; i < dagFn.childCount(); i++)
if( FindConnectedShaveShape( dagFn.child(i), shShape))
return true;
}
}
#ifdef _DEBUG
MGlobal::displayInfo(MString("shaveVray: shaveShape not found."));
#endif
return false;
}
bool FindConnectedShaveShape(MObject depNode, MObject &shShape)
{
MStatus stat;
{
MItDependencyGraph graphIt(depNode,
MFn::kInvalid,
MItDependencyGraph::kUpstream,
MItDependencyGraph::kDepthFirst,
MItDependencyGraph::kNodeLevel,
&stat);
if(stat == MStatus::kSuccess)
{
for ( ; ! graphIt.isDone(); graphIt.next() )
{
MObject itNode = graphIt.thisNode();
MFnDependencyNode itFn(itNode);
if(itFn.typeId() == MTypeId(0x001029B7)) //shaveHairShape type id
{
shShape = itNode;
#ifdef _DEBUG
MGlobal::displayInfo(MString("shaveVray: shaveShape found: ") + itFn.name());
#endif
return true;
}
}
}
}
{
MItDependencyGraph graphIt(depNode,
MFn::kInvalid,
MItDependencyGraph::kDownstream,
MItDependencyGraph::kDepthFirst,
MItDependencyGraph::kNodeLevel,
&stat);
if(stat == MStatus::kSuccess)
{
for ( ; ! graphIt.isDone(); graphIt.next() )
{
MObject itNode = graphIt.thisNode();
//if(itNode.apiType() == MFn::kShape)
{
MFnDependencyNode itFn(itNode);
if(itFn.typeId() == MTypeId(0x001029B7)) //shaveHairShape type id
{
shShape = itNode;
#ifdef _DEBUG
MGlobal::displayInfo(MString("shaveVray: shaveShape found: ") + itFn.name());
#endif
return true;
}
}
}
}
}
return false;
}
void FindNodesByTypeId(MTypeId nodeType, MObjectArray& nodes)
{
MItDependencyNodes iter;
nodes.clear();
for (; !iter.isDone(); iter.next())
{
MObject node = iter.item();
MFnDependencyNode nodeFn(node);
if (nodeFn.typeId() == nodeType) nodes.append(node);
}
}
void FindNodesByApiType(MFn::Type type, MObjectArray& nodes)
{
MItDependencyNodes iter;
nodes.clear();
for (; !iter.isDone(); iter.next())
{
MObject node = iter.item();
if (node.hasFn(type)) nodes.append(node);
}
}
bool FindAllShaveShapes(MObjectArray& shShapes)
{
FindNodesByTypeId(MTypeId(0x001029B7),shShapes);
return shShapes.length() != 0;
}
bool EnumDownNodes(MObject thisNode, MObjectArray& nodes)
{
MStatus stat;
MItDependencyGraph graphIt(thisNode,
MFn::kInvalid,
MItDependencyGraph::kDownstream,
MItDependencyGraph::kDepthFirst,
MItDependencyGraph::kNodeLevel,
&stat);
if(stat == MStatus::kSuccess)
{
for ( ; ! graphIt.isDone(); graphIt.next() )
{
MObject itNode = graphIt.thisNode();
nodes.append(itNode);
}
}
return nodes.length() != 0;
}
bool GetLibPathEnv(const MString vrayVersion, MString &var)
{
MStatus stat;
#if MAYA_API_VERSION < 20180000
int apiMajor = MAYA_API_VERSION/100;
#else
int apiMajor = MAYA_API_VERSION/10000;
#endif
char envVarBuf[256] = {'\0'};
int vrayMajorVersion = vrayVersion.substring(0, vrayVersion.index('.')-1).asInt();
if (vrayMajorVersion < 4)
{
sprintf(envVarBuf,"VRAY_FOR_MAYA%i_PLUGINS_x64",apiMajor);
}
else
{
sprintf(envVarBuf,"VRAY_FOR_MAYA%i_PLUGINS",apiMajor);
}
//printf("V-Ray plug-ins dir eviornment variable %s\n",envVarBuf);
var = envVarBuf;
return true;
}
bool GetLibPath(const MString vrayVersion, MString &path)
{
MStatus stat;
MString pathVar;
GetLibPathEnv(vrayVersion, pathVar);
char* vrayPlugDir = getenv(pathVar.asChar());
if(!vrayPlugDir)
return false;
//printf("V-Ray plug-ins dir %s\n",vrayPlugDir);
path = MString(vrayPlugDir);
return true;
}
#endif //USE_VRAY
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