path: root/mayaPlug/shaveVrayNode.cpp

// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962

/**********************************************************************
 *<
	FILE:			shaveVrayNode.cpp -- implementation file  

	DESCRIPTION:	Maya node

	HISTORY:		created  29-03-2010 

 *>
 **********************************************************************/

#include "shaveVrayNode.h"
#include "shaveRender.h"
#include "shaveGlobals.h"
#include "shaveVrayRenderer.h"
#include "shaveVraySharedFunctions.h"
#include "shaveVrayExporter.h"
//#include "shaveVrayDesc.h"
//#include "shaveVrayPlugin.h"
//#include "shaveVrayCallbacks.h"

#include <maya/MFloatArray.h>
#include <maya/MIntArray.h>
#include <maya/MPlugArray.h>
#include <maya/MString.h>
#include <maya/MItDependencyNodes.h>

#ifdef USE_VRAY

#include <stdio.h>
#include <sys/stat.h>

#ifdef _WIN32
#define	fileno	_fileno
#define	fstat	_fstat
#define snprintf _snprintf
typedef struct _stat StatType;
#else
#include <unistd.h>
#include <dlfcn.h>
typedef struct stat StatType;
#endif

/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
|							V-Ray export impl							|
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

typedef shaveVrayExporter *(*TFnNewShaveVrayExporter) ();
typedef void (*TFnDeleteShaveVrayExporter) (shaveVrayExporter *);

// Pointer to function implementing the actual plugin creation
static TFnNewShaveVrayExporter newShaveVrayExporter=0;
static TFnDeleteShaveVrayExporter deleteShaveVrayExporter=0;

// If load failed once already
static bool loadShaveVRayExportImplFailed=false;

static bool startsWith(const MString &str, const char *beg) {
	unsigned begLength = unsigned(strlen(beg));
	if (begLength > str.length()) {
		return false;
	}
	MString pref = str.substring(0, begLength-1);
	return pref == beg;
}

// Load required dll and get function to create V-Ray plugin
static int loadShaveVRayExportImpl() {
	if (loadShaveVRayExportImplFailed) {
		return false;
	}
	if (newShaveVrayExporter && deleteShaveVrayExporter) {
		return true;
	}
	MString dllPath;
	MStatus st;
	st=MGlobal::executeCommand("dirname(`pluginInfo -q -p shaveNode`)", dllPath);
	if (st.error()) {
		st.perror("Get shaveNode location");
		loadShaveVRayExportImplFailed=true;
		return false;
	}
	MString vrayVersion;
	st=MGlobal::executeCommand("vray version", vrayVersion);
	if (st.error()) {
		st.perror("Get V-Ray version");
		loadShaveVRayExportImplFailed=true;
		return false;
	}
#if defined(_WIN32)
	dllPath+="/vray/ShaveVray";
#elif defined(__linux__) || defined(OSMac_)
	dllPath+="/vray/libShaveVray";
#endif
	if (startsWith(vrayVersion, "4.")) {
		dllPath+="40";
	} else if (startsWith(vrayVersion, "3.")) {
		dllPath+="36";
	}
	dllPath+="Exporter";
#if defined(_WIN32)
	dllPath+=".dll";
	HMODULE hDll;
#	if defined(_UNICODE)
	hDll=LoadLibraryW(dllPath.asWChar());
#	else
	hDll=LoadLibraryA(dllPath.asChar());
#	endif // UNICODE
	if (!hDll) {
		int errCode=GetLastError();
		char *msgbuf = NULL;
		FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
			errCode,
			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
			(LPSTR) &msgbuf, 0, NULL
		);
		const int errBufLen=512;
		char *errBuf=(char*)alloca(errBufLen);
		errBuf[errBufLen]='\0';
		snprintf(errBuf, errBufLen, "LoadLibrary(%s) failed (%i): %s", dllPath.asChar(), errCode, msgbuf);
		LocalFree(msgbuf);
		MGlobal::displayError(errBuf);
		loadShaveVRayExportImplFailed=true;
		return false;
	}
	newShaveVrayExporter=(TFnNewShaveVrayExporter)GetProcAddress(hDll, "newShaveVrayExporter");
	deleteShaveVrayExporter=(TFnDeleteShaveVrayExporter)GetProcAddress(hDll, "deleteShaveVrayExporter");
#elif defined(__linux__) || defined(OSMac_)
	dllPath += ".so";
	const long openmode=RTLD_LAZY
#	ifdef OSMac_
						| RTLD_LOCAL
#	endif // OSMac_
						;
	void *hDll=dlopen(dllPath.asChar(), openmode);
	if (!hDll) {
		const int errBufLen=512;
		char *errBuf=(char*)alloca(errBufLen);
		errBuf[errBufLen]='\0';
		snprintf(errBuf, errBufLen, "dlopen(%s) failed: %s", dllPath.asChar(), dlerror());
		MGlobal::displayError(errBuf);
		loadShaveVRayExportImplFailed=true;
		return false;
	}
	newShaveVrayExporter=(TFnNewShaveVrayExporter)dlsym(hDll, "newShaveVrayExporter");
	deleteShaveVrayExporter=(TFnDeleteShaveVrayExporter)dlsym(hDll, "deleteShaveVrayExporter");
#endif
	if (!newShaveVrayExporter || !deleteShaveVrayExporter) {
		newShaveVrayExporter=0;
		deleteShaveVrayExporter=0;
		MGlobal::displayError("Failed to find shaveCreateVRayPlugin function");
		loadShaveVRayExportImplFailed=true;
#if defined(_WIN32)
		FreeLibrary(hDll);
#elif defined(__linux__) || defined(OSMac_)
		dlclose(hDll);
#endif
		return false;
	}
	return true;
}


/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
|							API type and name							|
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

MTypeId shaveVrayNode::typeId(0x001029B9); 

MString shaveVrayNode::typeName("shaveVrayShader");

MString shaveVrayNode::apiType("VRayGeometry");		//Vray related

MString shaveVrayNode::classification("geometry");	//Vray related

/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
|								Attributes								|
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

MObject shaveVrayNode::m_vrayGeomInfo;

MObject shaveVrayNode::m_vrayGeomResult;

MObject shaveVrayNode::m_outApiType;

MObject shaveVrayNode::m_outApiClassification;

MObject shaveVrayNode::m_iconSize;

MObject shaveVrayNode::m_outMesh;

MObject shaveVrayNode::m_stackIndex;

MObject shaveVrayNode::m_isInstanced;

MObject shaveVrayNode::m_instanceMesh;

MObject shaveVrayNode::m_tipfade;

MObject shaveVrayNode::m_spectint;

MObject shaveVrayNode::m_spectint2;

MObject shaveVrayNode::m_squirrel;

MObject shaveVrayNode::m_ownshader;

MObject shaveVrayNode::m_selfshadow;

MObject shaveVrayNode::m_castshadow;

MObject shaveVrayNode::m_recvshadow;

MObject shaveVrayNode::m_primaryvis;

MObject shaveVrayNode::m_reflvis;

MObject shaveVrayNode::m_refrvis;

/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
|							Attribute Names								|
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

MString shaveVrayNode::attr_vrayGeomInfo		= "vrayGeomInfo";
MString shaveVrayNode::attr_vgi					= "vgi";

MString shaveVrayNode::attr_vrayGeomResult		= "vrayGeomResult";
MString shaveVrayNode::attr_vgr					= "vgr";

MString shaveVrayNode::attr_outApiType			= "outApiType";
MString shaveVrayNode::attr_oat					= "oat";

MString shaveVrayNode::attr_outApiClassification= "outApiClassification";
MString shaveVrayNode::attr_oac					= "oac";

MString shaveVrayNode::attr_output				= "output";
MString shaveVrayNode::attr_out					= "out";

MString shaveVrayNode::attr_stackIndex			= "stackIndex";
MString shaveVrayNode::attr_sti					= "sti";

MString shaveVrayNode::attr_isInstanced			= "isInstanced";
MString shaveVrayNode::attr_isi					= "isi";

MString shaveVrayNode::attr_instanceMesh		= "instanceMesh";			
MString shaveVrayNode::attr_ime					= "ime";

MString shaveVrayNode::attr_tipfade				= "tipfade";
MString shaveVrayNode::attr_tf					= "tf";

MString shaveVrayNode::attr_specTint			= "specTint";
MString shaveVrayNode::attr_st					= "st";

MString shaveVrayNode::attr_specTint2			= "specTint2";
MString shaveVrayNode::attr_st2					= "st2";

MString shaveVrayNode::attr_squirrel			= "squirrel";
MString shaveVrayNode::attr_sq					= "sq";

MString shaveVrayNode::attr_ownshader			= "ownshader";
MString shaveVrayNode::attr_osh					= "osh";

MString shaveVrayNode::attr_selfshadow			= "selfshadow";
MString shaveVrayNode::attr_ss					= "ss";

MString shaveVrayNode::attr_castshadow			= "castshadow";
MString shaveVrayNode::attr_cs					= "cs";

MString shaveVrayNode::attr_recvshadow			= "recvshadow";
MString shaveVrayNode::attr_rs					= "rs";

MString shaveVrayNode::attr_primaryvis			= "primaryvis";
MString shaveVrayNode::attr_pv					= "pv";

MString shaveVrayNode::attr_refrvis				= "refrvis";
MString shaveVrayNode::attr_rr					= "rr";

MString shaveVrayNode::attr_reflvis				= "reflvis";
MString shaveVrayNode::attr_rl					= "rl";

/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
|								Methods									|
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

shaveVrayNode::shaveVrayNode():
	m_vrayExporter(NULL)
{
	if (loadShaveVRayExportImpl()) {
		m_vrayExporter = newShaveVrayExporter();
	} else {
		MGlobal::displayError("You will not be able to render with V-Ray");
	}
}

shaveVrayNode::~shaveVrayNode()
{
	if (m_vrayExporter) {
		deleteShaveVrayExporter(m_vrayExporter);
		m_vrayExporter = NULL;
	}
}

MStatus shaveVrayNode::initialize() 
{
	MFnNumericAttribute nAttr; 
	MFnTypedAttribute	tAttr;
	MFnUnitAttribute	uAttr;


	// Create input attributes
	m_vrayGeomInfo=nAttr.createAddr(attr_vrayGeomInfo, attr_vgi);
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setStorable(false));
	CHECK_MSTATUS(nAttr.setReadable(true));
	CHECK_MSTATUS(nAttr.setWritable(true));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_vrayGeomResult=nAttr.create(attr_vrayGeomResult, attr_vgr, MFnNumericData::kInt);
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setStorable(false));
	CHECK_MSTATUS(nAttr.setReadable(true));
	CHECK_MSTATUS(nAttr.setWritable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));


	MFnStringData strData;
	strData.create(shaveVrayNode::apiType);
	m_outApiType = tAttr.create(attr_outApiType, attr_oat, MFnData::kString, strData.object());
	CHECK_MSTATUS(tAttr.setStorable(true));
	CHECK_MSTATUS(tAttr.setKeyable(false));
	CHECK_MSTATUS(tAttr.setHidden(true));

	strData.create(shaveVrayNode::classification);
	m_outApiClassification = tAttr.create(attr_outApiClassification, attr_oac, MFnData::kString, strData.object());
	CHECK_MSTATUS(tAttr.setStorable(true));
	CHECK_MSTATUS(tAttr.setKeyable(false));
	CHECK_MSTATUS(tAttr.setHidden(true));

	m_iconSize=nAttr.create("iconSize", "is", MFnNumericData::kFloat, 1.0);
	CHECK_MSTATUS(nAttr.setKeyable(true));
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setReadable(true));
	CHECK_MSTATUS(nAttr.setWritable(true));

	m_outMesh = tAttr.create(attr_output, attr_out, MFnMeshData::kMesh);
	CHECK_MSTATUS(tAttr.setKeyable(false));
	//CHECK_MSTATUS(tAttr.setStorable(false));
	//CHECK_MSTATUS(tAttr.setReadable(true));
	//CHECK_MSTATUS(tAttr.setWritable(false));

	m_stackIndex = nAttr.create(attr_stackIndex,attr_sti,MFnNumericData::kInt,0);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_isInstanced = nAttr.create(attr_isInstanced,attr_isi,MFnNumericData::kBoolean,false);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_ownshader = nAttr.create(attr_ownshader,attr_osh,MFnNumericData::kBoolean,true);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_tipfade = nAttr.create(attr_tipfade,attr_tf,MFnNumericData::kBoolean,false);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_spectint = nAttr.createColor(attr_specTint,attr_st);
	CHECK_MSTATUS(nAttr.setDefault(1.0f, 1.0f, 1.0f));
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_spectint2 = nAttr.createColor(attr_specTint2,attr_st2);
	CHECK_MSTATUS(nAttr.setDefault(0.0f, 0.0f, 0.0f));
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_squirrel = nAttr.create(attr_squirrel,attr_sq,MFnNumericData::kBoolean,false);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_instanceMesh = tAttr.create(attr_instanceMesh,attr_ime,MFnData::kMesh);
	CHECK_MSTATUS(tAttr.setStorable(true));
	CHECK_MSTATUS(tAttr.setHidden(true));

	m_selfshadow = nAttr.create(attr_selfshadow,attr_ss,MFnNumericData::kFloat,1.0);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_castshadow = nAttr.create(attr_castshadow,attr_cs,MFnNumericData::kBoolean,1);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_recvshadow = nAttr.create(attr_recvshadow,attr_rs,MFnNumericData::kBoolean,1);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_primaryvis = nAttr.create(attr_primaryvis,attr_pv,MFnNumericData::kBoolean,1);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_reflvis = nAttr.create(attr_reflvis,attr_rl,MFnNumericData::kBoolean,1);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	m_refrvis = nAttr.create(attr_refrvis,attr_rr,MFnNumericData::kBoolean,1);
	CHECK_MSTATUS(nAttr.setStorable(true));
	CHECK_MSTATUS(nAttr.setKeyable(false));
	CHECK_MSTATUS(nAttr.setHidden(true));

	// Add attributes
	CHECK_MSTATUS(addAttribute(m_vrayGeomInfo));
	CHECK_MSTATUS(addAttribute(m_vrayGeomResult));
	CHECK_MSTATUS(addAttribute(m_outApiType));
	CHECK_MSTATUS(addAttribute(m_outApiClassification));
	CHECK_MSTATUS(addAttribute(m_iconSize));
	CHECK_MSTATUS(addAttribute(m_outMesh));
	CHECK_MSTATUS(addAttribute(m_stackIndex));
	CHECK_MSTATUS(addAttribute(m_isInstanced));
	CHECK_MSTATUS(addAttribute(m_ownshader));
	CHECK_MSTATUS(addAttribute(m_tipfade));
	CHECK_MSTATUS(addAttribute(m_spectint));
	CHECK_MSTATUS(addAttribute(m_spectint2));
	CHECK_MSTATUS(addAttribute(m_squirrel));
	CHECK_MSTATUS(addAttribute(m_instanceMesh));
	CHECK_MSTATUS(addAttribute(m_selfshadow));
	CHECK_MSTATUS(addAttribute(m_recvshadow));
	CHECK_MSTATUS(addAttribute(m_castshadow));
	CHECK_MSTATUS(addAttribute(m_primaryvis));
	CHECK_MSTATUS(addAttribute(m_refrvis));
	CHECK_MSTATUS(addAttribute(m_reflvis));


	// Attribute affects
	CHECK_MSTATUS(attributeAffects(m_vrayGeomInfo, m_vrayGeomResult));
	CHECK_MSTATUS(attributeAffects(m_iconSize, m_outMesh));

	return MS::kSuccess;
}

// V-Ray will attempt to compute the "vrayGeomResult" output of the plugin;
// at that point the plugin must add itself to the V-Ray scene description.
MStatus shaveVrayNode::compute(const MPlug &plug, MDataBlock &block) 
{
	//printf("shaveVrayNode::compute(...) plug %s\n",plug.name().asChar());fflush(stdout);

	if (plug==m_vrayGeomResult) 
	{
		if (!m_vrayExporter) {
			MGlobal::displayError("Couldn't load Shave V-Ray Exporter!");
			return MStatus::kFailure;
		}
		//printf("m_vrayGeomResult\n");fflush(stdout);
#ifdef _DEBUG
		MGlobal::displayInfo("shaveVrayNode::compute( m_vrayGeomResult ...)");
#endif

		MDataHandle geomInfoHandle=block.inputValue(m_vrayGeomInfo);
		void *geomInfo=geomInfoHandle.asAddr();

		///////// debug info /////////
		//printf("VR::VRayGeomInfo %s\n", geomInfo != NULL ? "not NULL" : "NULL");fflush(stdout);
		//printf("vrayGeomInfo %s\n", gi.isConnected() ? "not connected" : "connected");fflush(stdout);
		/////////////////////////////

		if (geomInfo) 
		{
			MDataHandle idxHandle=block.inputValue(m_stackIndex);
			int stackIdx = idxHandle.asInt();

			MDataHandle isiHandle = block.inputValue(m_isInstanced);
			bool isInstanced = isiHandle.asBool();

			MDataHandle oshHandle = block.inputValue(m_ownshader);
			bool ownshader = oshHandle.asBool();

			MDataHandle tfHandle = block.inputValue(m_tipfade);
			bool tipfade = tfHandle.asBool();

			MDataHandle spHandle = block.inputValue(m_spectint);
			MColor spectint = MColor(spHandle.asFloat3());

			MDataHandle sp2Handle = block.inputValue(m_spectint2);
			MColor spectint2 = MColor(sp2Handle.asFloat3());

			MDataHandle sqHandle = block.inputValue(m_squirrel);
			bool squirrel = sqHandle.asBool();
			
			MDataHandle imeHandle = block.inputValue(m_instanceMesh);
			MObject instance = imeHandle.asMesh();

			MDataHandle ssHandle = block.inputValue(m_selfshadow);
			float selfShadow = ssHandle.asFloat();

			//cast/recieve Shadows
			MDataHandle csHandle = block.inputValue(m_castshadow);
			bool castShadow = csHandle.asBool();

			MDataHandle rsHandle = block.inputValue(m_recvshadow);
			bool recvShadow = rsHandle.asBool();

			//primary visibility
			MDataHandle pvHandle = block.inputValue(m_primaryvis);
			bool primaryVis = pvHandle.asBool();

			MDataHandle rlHandle = block.inputValue(m_reflvis);
			bool reflVis = rlHandle.asBool();

			MDataHandle rrHandle = block.inputValue(m_refrvis);
			bool refrVis = rrHandle.asBool();

            if (m_vrayVersion == "")
            {
                MGlobal::executeCommand("vray version", m_vrayVersion);
            }

			MString libPath;
			if(GetLibPath(m_vrayVersion, libPath))
			{
#if defined(OSMac_) && !defined(OSMac_MachO_)
				libPath = shaveMacCarbon::makeMacFilename(libPath);
#endif
			}
			else
			{
				MGlobal::displayWarning("shaveVrayNode: can not retrieve V-Ray plug-ins directory from enviornment variable, default path is used.");
				libPath = "";
			}

			bool camVis = true;
			bool lightVis = true;
			bool giVis = true;
			for (MItDependencyNodes iterNodes; !iterNodes.isDone(); iterNodes.next()) {
				MObject node = iterNodes.item();
				MFnDependencyNode gFn(node);
				if (gFn.typeId() == shaveGlobals::id) {
					MPlug cp = gFn.findPlug("primCameraVis");
					MPlug lp = gFn.findPlug("primLightVis");
					MPlug gp = gFn.findPlug("primGiVis");
					cp.getValue(camVis);
					lp.getValue(lightVis);
					gp.getValue(giVis);
				}
			}

			if (!castShadow) {
				lightVis = false;
			}
			if (!primaryVis) {
				camVis = false;
			}

			m_vrayExporter->createVRayPlugin(
					geomInfo,
					libPath,
					stackIdx,
					ownshader,
					isInstanced,
					instance,
					tipfade,
					squirrel,
					spectint,
					spectint2,
					camVis,
					lightVis,
					giVis,
					reflVis,
					refrVis,
					selfShadow,
					recvShadow);
		}
		MDataHandle geomResultHandle=block.outputValue(m_vrayGeomResult);
		geomResultHandle.asInt()=1;
		geomResultHandle.setClean();

		return MS::kSuccess;
	}
	else if (plug == m_outMesh) 
	{
		//printf("m_outMesh\n");fflush(stdout);

		MDataHandle sizeHandle=block.inputValue(m_iconSize);
		float size=sizeHandle.asFloat();
		
		MStatus stat;
		MFnMeshData dataCreator;
		MDataHandle outputHandle=block.outputValue(m_outMesh);
		MObject newOutputData=dataCreator.create();
		MFnMesh fnMesh;

		MPointArray vertices;
		vertices.setLength(4);
		vertices[0]=MPoint(-size, 0.0f, -size);
		vertices[1]=MPoint(-size, 0.0f, size);
		vertices[2]=MPoint(size, 0.0f, size);
		vertices[3]=MPoint(size, 0.0f, -size);

		fnMesh.addPolygon(vertices, true, 0.0f, newOutputData);

		outputHandle.set(newOutputData);
		outputHandle.setClean();

		return MS::kSuccess;
	}

	return MS::kUnknownParameter;
}

bool shaveVrayNode::readDraToParam(const char *draFilename)
{
	if (!m_vrayExporter) {
		return false;
	}
	return m_vrayExporter->readDraToParam(draFilename);
}

#endif //USE_VRAY