CWE-ou-minkata/Sources/Tools/MaxComponent/plSoftVolumeComponent.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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*==LICENSE==*/

#include "HeadSpin.h"
#include "hsTemplates.h"
#include "hsResMgr.h"

#include "plComponent.h"
#include "plComponentReg.h"
#include "plMiscComponents.h"
#include "MaxMain/plMaxNode.h"
#include "resource.h"

#include <dummy.h>
#include <iparamm2.h>
#pragma hdrstop

#include "plSoftVolumeComponent.h"

#include "MaxMain/plPlasmaRefMsgs.h"

#include "plIntersect/plSoftVolumeTypes.h"
#include "plIntersect/plVolumeIsect.h"
#include "pnSceneObject/plSceneObject.h"
#include "pnMessage/plObjRefMsg.h"

#include "plGLight/plLightInfo.h"
#include "plScene/plOccluder.h"

#include "pnSceneObject/plDrawInterface.h"
#include "plScene/plVisRegion.h"
#include "plScene/plRelevanceRegion.h"

void DummyCodeIncludeFuncSoftVolume() {}


/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
class plVolumeHitCallback : public HitByNameDlgCallback
{
protected:
    INode*          fOwner;
    IParamBlock2*   fPB;
    ParamID         fNodeListID;
    BOOL            fSingleSel;
    TCHAR           fTitle[ 128 ];

public:
    plVolumeHitCallback(INode* owner, IParamBlock2 *pb, ParamID nodeListID, TCHAR *title = nil, BOOL singleSel=false );

    virtual TCHAR *dialogTitle() { return fTitle; }
    virtual TCHAR *buttonText() { return "OK"; }
    virtual int filter(INode *node);
    virtual void proc(INodeTab &nodeTab);
    virtual BOOL showHiddenAndFrozen() { return TRUE; }
    virtual BOOL singleSelect() { return fSingleSel; }
};

plVolumeHitCallback::plVolumeHitCallback(INode* owner, IParamBlock2 *pb, ParamID nodeListID, TCHAR *title, BOOL singleSel)
:   fOwner(owner),
    fPB(pb),
    fNodeListID(nodeListID),
    fSingleSel(singleSel)
{
    strcpy( fTitle, title );
}

int plVolumeHitCallback::filter(INode *node)
{
    if( node == fOwner )
        return FALSE;

    plComponentBase *comp = ((plMaxNodeBase*)node)->ConvertToComponent();

    // If this is an activator type component
    if( comp )
    {
        if( (comp->ClassID() == SOFTVOLUME_CID)
            || (comp->ClassID() == SOFTVOLUME_UNION_CID)
            || (comp->ClassID() == SOFTVOLUME_ISECT_CID)
            || (comp->ClassID() == SOFTVOLUME_NEGATE_CID) )
        {

            if( !fSingleSel )
            {
                // And we don't already reference it
                int i;
                for( i = 0; i < fPB->Count(fNodeListID); i++ )
                {
                    if( fPB->GetINode(fNodeListID, 0, i) == node )
                        return FALSE;
                }
            }

            // And this wouldn't create a cyclical reference (Max doesn't like those)
            if (comp->TestForLoop(FOREVER, fPB) == REF_FAIL)
                return FALSE;

            return TRUE;
        }
    }

    return FALSE;
}

void plVolumeHitCallback::proc(INodeTab &nodeTab)
{
    if( fSingleSel )
    {
        if( nodeTab.Count() )
            fPB->SetValue(fNodeListID, TimeValue(0), nodeTab[0]);
        else
            fPB->SetValue(fNodeListID, TimeValue(0), (INode*)nil);
    }
    else
        fPB->Append(fNodeListID, nodeTab.Count(), &nodeTab[0]);
}

/////////////////////////////////////////////////////////////////////////////////////////////////
//// plSingleCompSelProc Functions //////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////

plSingleCompSelProc::plSingleCompSelProc(ParamID nodeID, int dlgItem, TCHAR *title) : fNodeID(nodeID), fDlgItem(dlgItem) 
{
    strcpy( fTitle, title );
}

BOOL plSingleCompSelProc::DlgProc(TimeValue t, IParamMap2 *paramMap, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg)
    {
    case WM_INITDIALOG:
        {
            IParamBlock2 *pb = paramMap->GetParamBlock();
            INode* node = pb->GetINode(fNodeID);
            TSTR newName(node ? node->GetName() : "Pick");
            ::SetWindowText(::GetDlgItem(hWnd, fDlgItem), newName);
        }
        return true;

    case WM_COMMAND:
        if( (HIWORD(wParam) == BN_CLICKED) && (LOWORD(wParam) == fDlgItem) )
        {
            // Adding a volume.  Set it and refresh the UI to show it in our list.
            IParamBlock2 *pb = paramMap->GetParamBlock();
            plVolumeHitCallback hitCB((INode*)pb->GetOwner(), pb, fNodeID, fTitle, true );
            GetCOREInterface()->DoHitByNameDialog(&hitCB);
            INode* node = pb->GetINode(fNodeID);
            TSTR newName(node ? node->GetName() : "Pick");
            ::SetWindowText(::GetDlgItem(hWnd, fDlgItem), newName);
            paramMap->Invalidate(fNodeID);
            ShowWindow(hWnd, SW_HIDE);
            ShowWindow(hWnd, SW_SHOW);

            return false;
        }
        return true;
    }

    return false;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////

// Moved class declaration to .h -mcn


bool plSoftVolBaseComponent::SetupProperties(plMaxNode* pNode, plErrorMsg* errMsg) 
{ 
    fSoftKey = nil; 
    fValid = false; 
    return true; 
}

plKey plSoftVolBaseComponent::GetSoftVolume()
{ 
    if( !fSoftKey )
        ICreateSoftVolume(); 
    return fSoftKey; 
}

plSoftVolBaseComponent* plSoftVolBaseComponent::GetSoftComponent(INode* node)
{
    if( node == nil )
        return nil;

    plComponentBase *comp = ((plMaxNodeBase*)node)->ConvertToComponent();
    if( comp == nil )
        return nil;

    return GetSoftComponent( comp );
}

plSoftVolBaseComponent* plSoftVolBaseComponent::GetSoftComponent(plComponentBase *comp)
{
    if( comp != nil && 
           (comp->ClassID() == SOFTVOLUME_CID)
        || (comp->ClassID() == SOFTVOLUME_UNION_CID)
        || (comp->ClassID() == SOFTVOLUME_ISECT_CID)
        || (comp->ClassID() == SOFTVOLUME_NEGATE_CID) )
    {
        return (plSoftVolBaseComponent*)comp;
    }
    return nil;
}

void plSoftVolBaseComponent::IAddSubVolume(plKey masterKey, plKey subKey)
{
    if( masterKey && subKey )
        hsgResMgr::ResMgr()->AddViaNotify(subKey, new plGenRefMsg(masterKey, plRefMsg::kOnCreate, 0, plSoftVolume::kSubVolume), plRefFlags::kActiveRef);
}

plKey plSoftVolBaseComponent::ISetVolumeKey(plSoftVolume* vol)
{
    int i;
    for( i = 0; i < NumTargets(); i++ )
    {
        if( GetTarget(i) )
            break;
    }
    hsAssert(i < NumTargets(), "We're not attached to anything?");
    plKey key = hsgResMgr::ResMgr()->NewKey(plString::FromUtf8(GetINode()->GetName()), vol, GetTarget(i)->GetLocation());

    return key;
}

plKey plSoftVolBaseComponent::IInvertVolume(plKey subKey)
{
    if( !subKey )
        return nil;

    plSoftVolumeInvert* invert = new plSoftVolumeInvert;
    plKey invertKey = ISetVolumeKey(invert);

    IAddSubVolume(invertKey, subKey);

    return invertKey;
}

bool plSoftVolBaseComponent::DeInit(plMaxNode *node, plErrorMsg *pErrMsg)
{
    fSoftKey = nil;
    return true;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
//
//  SoftVolume Component
//
//Class that accesses the paramblock below.
class plSoftVolComponent : public plSoftVolBaseComponent
{
public:
    enum {
        kSoftDistance,
        kPartialEnabled,
        kInsidePower,
        kOutsidePower
    };

private:

    plKey               ISetFromIsect(plMaxNodeBase* pNode, plVolumeIsect* isect);
    plKey               ICreateSoftVolume();
    plKey               ICreateFromNode(plMaxNodeBase* pNode);
    plKey               ICreateFromDummyObject(plMaxNodeBase* pNode, Object* obj);
    plKey               ICreateFromTriObject(plMaxNodeBase* pNode, Object* obj);

protected:
    void                ICreateVolume();
public:
    plSoftVolComponent();
    void DeleteThis() { delete this; }

    bool SetupProperties(plMaxNode* pNode, plErrorMsg* errMsg);

    virtual void CollectNonDrawables(INodeTab& nonDrawables) { AddTargetsToList(nonDrawables); }
};

//
// When one of our parameters that is a ref changes, send out the component ref
// changed message.  Normally, messages from component refs are ignored since
// they pass along all the messages of the ref, which generates a lot of false
// converts.
class plSoftVolObjAccessor : public PBAccessor
{
public:
    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t)
    {
    }
};
plSoftVolObjAccessor gSoftVolObjAccessor;


class plSoftVolComponentProc : public ParamMap2UserDlgProc
{
public:
    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        switch (msg)
        {
        case WM_INITDIALOG:
            {
                    IParamBlock2 *pb = map->GetParamBlock();
                    map->SetTooltip(plSoftVolComponent::kSoftDistance, TRUE, "Distance effect fades in and out." );
            }
            return true;

        }

        return false;
    }
    void DeleteThis() {}
};
static plSoftVolComponentProc gSoftVolProc;



CLASS_DESC(plSoftVolComponent, gSoftVolDesc, "Soft Region",  "SoftRegion", COMP_TYPE_VOLUME, SOFTVOLUME_CID)



ParamBlockDesc2 gSoftVolBk
(
    plComponent::kBlkComp, _T("SoftRegion"), 0, &gSoftVolDesc, P_AUTO_CONSTRUCT+P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SOFTVOLUME, IDS_COMP_SOFTVOLUMES,  0, 0, &gSoftVolProc,

    plSoftVolComponent::kSoftDistance,      _T("Soft Distance"),        TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 500.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTVOL_SOFT, IDC_COMP_SOFTVOL_SOFT_SPIN, 1.0,
        end,

    plSoftVolComponent::kPartialEnabled,  _T("EnablePartial"), TYPE_BOOL,       0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SOFTVOL_ENABLEPARTIAL,
        p_enable_ctrls,     2, plSoftVolComponent::kInsidePower, plSoftVolComponent::kOutsidePower,
        end,

    plSoftVolComponent::kInsidePower,       _T("PowerInside"),      TYPE_FLOAT,     0, 0,   
        p_default, 100.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTVOL_INSIDE, IDC_COMP_SOFTVOL_INSIDE_SPIN, 1.0,
        end,

    plSoftVolComponent::kOutsidePower,      _T("PowerOutside"),     TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTVOL_OUTSIDE, IDC_COMP_SOFTVOL_OUTSIDE_SPIN, 1.0,
        end,

    end

);

plSoftVolComponent::plSoftVolComponent()
{
    fClassDesc = &gSoftVolDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSoftVolComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    if( !plSoftVolBaseComponent::SetupProperties(pNode, errMsg) )
        return false;

    int i;
    for( i = 0; i < pNode->NumAttachedComponents(); i++ )
    {
        plComponentBase* comp = pNode->GetAttachedComponent(i);
        if( comp 
            && (comp != this)
            && (comp->ClassID() == ClassID()) )
        {
            errMsg->Set(true, pNode->GetName(), "Multiple SoftRegion components attached, there can be only one").CheckAndAsk();
            errMsg->Set(false);

            fValid = false;
            return true;
        }
    }
    //
    // The node must either point to a Mesh or a dummy box, otherwise skip it.
    //
    Object *obj = pNode->EvalWorldState(TimeValue(0)).obj;
    if( !obj )
    {
        return true;
    }

    if( obj->ClassID() == Class_ID(DUMMY_CLASS_ID,0) )
    {
        fValid = true;
    }
    else if( obj->CanConvertToType(triObjectClassID) )
    {
        fValid = true;
    }
    pNode->SetDrawable(false);

    return true;
}

plKey plSoftVolComponent::ICreateSoftVolume()
{
    if( !fValid )
        return nil;

    if( !NumTargets() )
        return nil;

    if( NumTargets() < 2 )
    {
        return fSoftKey = ICreateFromNode(GetTarget(0));
    }

    plSoftVolumeUnion* compound = new plSoftVolumeUnion;
    fSoftKey = ISetVolumeKey(compound);

    int i;
    for( i = 0; i < NumTargets(); i++ )
    {
        if( GetTarget(i) )
        {
            plKey subKey = ICreateFromNode(GetTarget(i));
            IAddSubVolume(fSoftKey, subKey);
        }
    }
    if( !compound->GetNumSubs() )
    {
        delete compound;
        compound = nil;
        fSoftKey = nil;
    }

    return fSoftKey;
}

plKey plSoftVolComponent::ICreateFromNode(plMaxNodeBase* pNode)
{
    if( !pNode )
        return nil;

    if( !fValid )
        return nil;

    if( !pNode->GetSceneObject() )
        return nil;

    // Go ahead and make it here, so it'll be available for aggregaters in the Convert pass
    Object *obj = pNode->EvalWorldState(TimeValue(0)).obj;

    if( obj->ClassID() == Class_ID(DUMMY_CLASS_ID,0) )
    {
        return ICreateFromDummyObject(pNode, obj);
    }
    else if( obj->CanConvertToType(triObjectClassID) )
    {
        return ICreateFromTriObject(pNode, obj);
    }

    return nil;
}

plKey plSoftVolComponent::ICreateFromDummyObject(plMaxNodeBase* pNode, Object* obj)
{
    DummyObject* dummy = (DummyObject*)obj;
    Box3 bnd = dummy->GetBox();

    plParallelIsect* isect = new plParallelIsect;
    isect->SetNumPlanes(3);

    hsMatrix44 v2l = pNode->GetVertToLocal44();
    hsMatrix44 l2v = pNode->GetLocalToVert44();

    hsPoint3 corner(bnd.pmin.x, bnd.pmin.y, bnd.pmin.z);
    hsVector3 axis(bnd.pmax.x - bnd.pmin.x, bnd.pmax.y - bnd.pmin.y, bnd.pmax.z - bnd.pmin.z);

    int i;
    for( i = 0; i < 3; i++ )
    {
        hsPoint3 bot = v2l * corner;
        hsPoint3 top = corner;
        top[i] += axis[i];
        top = v2l * top;

        isect->SetPlane(i, bot, top);
    }

    return ISetFromIsect(pNode, isect);
}

plKey plSoftVolComponent::ICreateFromTriObject(plMaxNodeBase* pNode, Object* obj)
{
    TriObject   *meshObj = (TriObject *)obj->ConvertToType(TimeValue(0), triObjectClassID);

    Mesh* mesh = &meshObj->mesh;

    hsMatrix44 v2l = pNode->GetVertToLocal44();
    hsMatrix44 l2v = pNode->GetLocalToVert44();

    plConvexIsect* isect = new plConvexIsect;
    int i;
    for( i = 0; i < mesh->getNumFaces(); i++ )
    {
        Face        *maxFace = &mesh->faces[ i ];

        Point3 v0 = mesh->verts[ maxFace->v[ 0 ] ];
        Point3 v1 = mesh->verts[ maxFace->v[ 1 ] ];
        Point3 v2 = mesh->verts[ maxFace->v[ 2 ] ];

        hsPoint3 p0(v0.x, v0.y, v0.z);
        hsPoint3 p1(v1.x, v1.y, v1.z);
        hsPoint3 p2(v2.x, v2.y, v2.z);

        p0 = v2l * p0;
        p1 = v2l * p1;
        p2 = v2l * p2;

        hsVector3 n = hsVector3(&p1, &p0) % hsVector3(&p2, &p0);

        isect->AddPlane(n, p0);
    }
    
    plKey retVal = ISetFromIsect(pNode, isect);

    if( meshObj != obj )
        meshObj->DeleteThis();

    return retVal;
}

plKey plSoftVolComponent::ISetFromIsect(plMaxNodeBase* pNode, plVolumeIsect* isect)
{
    isect->SetTransform(pNode->GetLocalToWorld44(), pNode->GetWorldToLocal44());

    plSoftVolumeSimple* simple = new plSoftVolumeSimple;
    simple->SetVolume(isect);
    simple->SetDistance(fCompPB->GetFloat(kSoftDistance));

    if( fCompPB->GetInt(kPartialEnabled) )
    {
        simple->SetInsideStrength(fCompPB->GetFloat(kInsidePower) * 0.01f);
        simple->SetOutsideStrength(fCompPB->GetFloat(kOutsidePower) * 0.01f);
    }

    plSceneObject* sceneObj = pNode->GetSceneObject();

    plKey retVal = ISetVolumeKey(simple);
    
    hsgResMgr::ResMgr()->AddViaNotify(simple->GetKey(), new plObjRefMsg(sceneObj->GetKey(), plRefMsg::kOnCreate, -1, plObjRefMsg::kInterface), plRefFlags::kActiveRef);

    return retVal;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Union of volumes
/////////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plSoftVolUnionComponent : public plSoftVolBaseComponent
{
public:
    enum {
        kSubVolumes,
        kPartialEnabled,
        kInsidePower,
        kOutsidePower
    };
protected:

    plKey               ICreateSoftVolume();

public:
    plSoftVolUnionComponent();
    void DeleteThis() { delete this; }

    bool SetupProperties(plMaxNode* pNode, plErrorMsg* errMsg);
};

// When one of our parameters that is a ref changes, send out the component ref
// changed message.  Normally, messages from component refs are ignored since
// they pass along all the messages of the ref, which generates a lot of false
// converts.
class plSoftVolUnionAccessor : public PBAccessor
{
public:
    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t)
    {
        if (id == plSoftVolUnionComponent::kSubVolumes)
        {
            plSoftVolUnionComponent *comp = (plSoftVolUnionComponent*)owner;
            comp->NotifyDependents(FOREVER, PART_ALL, REFMSG_USER_COMP_REF_CHANGED);
        }
    }
};
plSoftVolUnionAccessor gSoftVolUnionAccessor;


class plSoftVolUnionComponentProc : public ParamMap2UserDlgProc
{
public:
    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        switch (msg)
        {
        case WM_INITDIALOG:
            {
                    IParamBlock2 *pb = map->GetParamBlock();
                    map->SetTooltip(plSoftVolUnionComponent::kSubVolumes, TRUE, "Select sub-volumes to combine into larger." );
            }
            return true;

        case WM_COMMAND:
            if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == IDC_ADD_VOLUME)
            {
                // Adding a volume.  Set it and refresh the UI to show it in our list.
                plVolumeHitCallback hitCB((INode*)map->GetParamBlock()->GetOwner(), map->GetParamBlock(), plSoftVolUnionComponent::kSubVolumes, "Select sub-volumes");
                GetCOREInterface()->DoHitByNameDialog(&hitCB);
                map->Invalidate(plSoftVolUnionComponent::kSubVolumes);
                return TRUE;
            }
            break;
        }

        return false;
    }
    void DeleteThis() {}
};
static plSoftVolUnionComponentProc gSoftVolUnionProc;



CLASS_DESC(plSoftVolUnionComponent, gSoftVolUnionDesc, "Soft Region Union",  "SoftRegionUnion", COMP_TYPE_VOLUME, SOFTVOLUME_UNION_CID)



ParamBlockDesc2 gSoftVolUnionBk
(
    plComponent::kBlkComp, _T("SoftRegionUnion"), 0, &gSoftVolUnionDesc, P_AUTO_CONSTRUCT+P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SOFTVOLUME_UNION, IDS_COMP_SOFTVOLUME_UNION,  0, 0, &gSoftVolUnionProc,

    plSoftVolUnionComponent::kSubVolumes,   _T("SubRegions"),   TYPE_INODE_TAB, 0,      P_CAN_CONVERT, 0,
        p_ui,           TYPE_NODELISTBOX, IDC_LIST_TARGS, 0, 0, IDC_DEL_TARGS,
        p_classID,      SOFTVOLUME_BASE_CID,
        p_accessor,     &gSoftVolUnionAccessor,
        end,

    plSoftVolUnionComponent::kPartialEnabled,  _T("EnablePartial"), TYPE_BOOL,      0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SOFTUNION_ENABLEPARTIAL,
        p_enable_ctrls,     2, plSoftVolUnionComponent::kInsidePower, plSoftVolUnionComponent::kOutsidePower,
        end,

    plSoftVolUnionComponent::kInsidePower,      _T("PowerInside"),      TYPE_FLOAT,     0, 0,   
        p_default, 100.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTUNION_INSIDE, IDC_COMP_SOFTUNION_INSIDE_SPIN, 1.0,
        end,

    plSoftVolComponent::kOutsidePower,      _T("PowerOutside"),     TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTUNION_OUTSIDE, IDC_COMP_SOFTUNION_OUTSIDE_SPIN, 1.0,
        end,

    end

);

plSoftVolUnionComponent::plSoftVolUnionComponent()
{
    fClassDesc = &gSoftVolUnionDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSoftVolUnionComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    return plSoftVolBaseComponent::SetupProperties(pNode, errMsg);
}

plKey plSoftVolUnionComponent::ICreateSoftVolume()
{
    int numSubs = fCompPB->Count(kSubVolumes);
    if( numSubs < 0 )
        return nil;

    if( numSubs < 2 )
        return fSoftKey = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSubVolumes, 0, 0))->GetSoftVolume();

    plSoftVolumeUnion* compound = new plSoftVolumeUnion;
    fSoftKey = ISetVolumeKey(compound);

    int i;
    for( i = 0; i < numSubs; i++ )
    {
        plSoftVolBaseComponent *comp = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSubVolumes, 0, i));
        if (comp)
        {
            plKey subKey = comp->GetSoftVolume();
            IAddSubVolume(fSoftKey, subKey);
        }
    }

    if( fCompPB->GetInt(kPartialEnabled) )
    {
        compound->SetInsideStrength(fCompPB->GetFloat(kInsidePower) * 0.01f);
        compound->SetOutsideStrength(fCompPB->GetFloat(kOutsidePower) * 0.01f);
    }

    return fSoftKey;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Intersection of volumes
/////////////////////////////////////////////////////////////////////////////////////////////////
//Class that accesses the paramblock below.
class plSoftVolIsectComponent : public plSoftVolBaseComponent
{
public:
    enum {
        kSubVolumes,
        kPartialEnabled,
        kInsidePower,
        kOutsidePower
    };
protected:

    plKey               ICreateSoftVolume();

public:
    plSoftVolIsectComponent();
    void DeleteThis() { delete this; }

    bool SetupProperties(plMaxNode* pNode, plErrorMsg* errMsg);
};

// When one of our parameters that is a ref changes, send out the component ref
// changed message.  Normally, messages from component refs are ignored since
// they pass along all the messages of the ref, which generates a lot of false
// converts.
class plSoftVolIsectAccessor : public PBAccessor
{
public:
    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t)
    {
        if (id == plSoftVolIsectComponent::kSubVolumes)
        {
            plSoftVolIsectComponent *comp = (plSoftVolIsectComponent*)owner;
            comp->NotifyDependents(FOREVER, PART_ALL, REFMSG_USER_COMP_REF_CHANGED);
        }
    }
};
plSoftVolIsectAccessor gSoftVolIsectAccessor;


class plSoftVolIsectComponentProc : public ParamMap2UserDlgProc
{
public:
    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        switch (msg)
        {
        case WM_INITDIALOG:
            {
                    IParamBlock2 *pb = map->GetParamBlock();
                    map->SetTooltip(plSoftVolIsectComponent::kSubVolumes, TRUE, "Select sub-volumes to combine into larger." );
            }
            return true;

        case WM_COMMAND:
            if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == IDC_ADD_VOLUME)
            {
                // Adding a volume.  Set it and refresh the UI to show it in our list.
                plVolumeHitCallback hitCB((INode*)map->GetParamBlock()->GetOwner(), map->GetParamBlock(), plSoftVolIsectComponent::kSubVolumes, "Select sub-volumes");
                GetCOREInterface()->DoHitByNameDialog(&hitCB);
                map->Invalidate(plSoftVolIsectComponent::kSubVolumes);
                return TRUE;
            }
            break;
        }

        return false;
    }
    void DeleteThis() {}
};
static plSoftVolIsectComponentProc gSoftVolIsectProc;



CLASS_DESC(plSoftVolIsectComponent, gSoftVolIsectDesc, "Soft Region Intersection",  "SoftRegionIsect", COMP_TYPE_VOLUME, SOFTVOLUME_ISECT_CID)



ParamBlockDesc2 gSoftVolIsectBk
(
    plComponent::kBlkComp, _T("SoftRegionIsect"), 0, &gSoftVolIsectDesc, P_AUTO_CONSTRUCT+P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SOFTVOLUME_ISECT, IDS_COMP_SOFTVOLUME_ISECT,  0, 0, &gSoftVolIsectProc,

    plSoftVolIsectComponent::kSubVolumes,   _T("SubRegions"),   TYPE_INODE_TAB, 0,      P_CAN_CONVERT, 0,
        p_ui,           TYPE_NODELISTBOX, IDC_LIST_TARGS, 0, 0, IDC_DEL_TARGS,
        p_classID,      SOFTVOLUME_BASE_CID,
        p_accessor,     &gSoftVolIsectAccessor,
        end,

    plSoftVolIsectComponent::kPartialEnabled,  _T("EnablePartial"), TYPE_BOOL,      0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SOFTISECT_ENABLEPARTIAL,
        p_enable_ctrls,     2, plSoftVolIsectComponent::kInsidePower, plSoftVolIsectComponent::kOutsidePower,
        end,

    plSoftVolIsectComponent::kInsidePower,      _T("PowerInside"),      TYPE_FLOAT,     0, 0,   
        p_default, 100.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTISECT_INSIDE, IDC_COMP_SOFTISECT_INSIDE_SPIN, 1.0,
        end,

    plSoftVolIsectComponent::kOutsidePower,     _T("PowerOutside"),     TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTISECT_OUTSIDE, IDC_COMP_SOFTISECT_OUTSIDE_SPIN, 1.0,
        end,

    end

);

plSoftVolIsectComponent::plSoftVolIsectComponent()
{
    fClassDesc = &gSoftVolIsectDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSoftVolIsectComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    return plSoftVolBaseComponent::SetupProperties(pNode, errMsg);
}

plKey plSoftVolIsectComponent::ICreateSoftVolume()
{
    int numSubs = fCompPB->Count(kSubVolumes);
    if( numSubs < 0 )
        return nil;

    if( numSubs < 2 )
        return fSoftKey = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSubVolumes, 0, 0))->GetSoftVolume();

    plSoftVolumeIntersect* compound = new plSoftVolumeIntersect;
    fSoftKey = ISetVolumeKey(compound);

    int i;
    for( i = 0; i < numSubs; i++ )
    {
        plKey subKey = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSubVolumes, 0, i))->GetSoftVolume();
        IAddSubVolume(fSoftKey, subKey);
    }

    if( fCompPB->GetInt(kPartialEnabled) )
    {
        compound->SetInsideStrength(fCompPB->GetFloat(kInsidePower) * 0.01f);
        compound->SetOutsideStrength(fCompPB->GetFloat(kOutsidePower) * 0.01f);
    }

    return fSoftKey;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Inversion of a (possibly complex) volume
/////////////////////////////////////////////////////////////////////////////////////////////////
//Class that accesses the paramblock below.
class plSoftVolNegateComponent : public plSoftVolBaseComponent
{
public:
    enum {
        kSubVolume,
        kPartialEnabled,
        kInsidePower,
        kOutsidePower
    };
protected:

    plKey               ICreateSoftVolume();

public:
    plSoftVolNegateComponent();
    void DeleteThis() { delete this; }

    bool SetupProperties(plMaxNode* pNode, plErrorMsg* errMsg);
};

// When one of our parameters that is a ref changes, send out the component ref
// changed message.  Normally, messages from component refs are ignored since
// they pass along all the messages of the ref, which generates a lot of false
// converts.
class plSoftVolNegateAccessor : public PBAccessor
{
public:
    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t)
    {
        if (id == plSoftVolNegateComponent::kSubVolume)
        {
            plSoftVolNegateComponent *comp = (plSoftVolNegateComponent*)owner;
            comp->NotifyDependents(FOREVER, PART_ALL, REFMSG_USER_COMP_REF_CHANGED);
        }
    }
};
plSoftVolNegateAccessor gSoftVolNegateAccessor;


static plSingleCompSelProc gSoftVolNegateSingleSel(plSoftVolNegateComponent::kSubVolume, IDC_COMP_SOFTVOLUME_NEGATE_CHOOSE_SUB, "Select sub-volumes");



CLASS_DESC(plSoftVolNegateComponent, gSoftVolNegateDesc, "Soft Region Inverted",  "SoftRegionInvert", COMP_TYPE_VOLUME, SOFTVOLUME_NEGATE_CID)



ParamBlockDesc2 gSoftVolNegateBk
(
    plComponent::kBlkComp, _T("SoftRegionNegate"), 0, &gSoftVolNegateDesc, P_AUTO_CONSTRUCT+P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SOFTVOLUME_NEGATE, IDS_COMP_SOFTVOLUME_NEGATE,  0, 0, &gSoftVolNegateSingleSel, 

    plSoftVolNegateComponent::kSubVolume, _T("SubRegion"),  TYPE_INODE,     0, 0,
        p_prompt, IDS_COMP_SOFTVOLUME_NEGATE,
        p_accessor, &gSoftVolNegateAccessor,
        end,

    plSoftVolNegateComponent::kPartialEnabled,  _T("EnablePartial"), TYPE_BOOL,         0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SOFTNEGATE_ENABLEPARTIAL,
        p_enable_ctrls,     2, plSoftVolComponent::kInsidePower, plSoftVolComponent::kOutsidePower,
        end,

    plSoftVolNegateComponent::kInsidePower,     _T("PowerInside"),      TYPE_FLOAT,     0, 0,   
        p_default, 100.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTNEGATE_INSIDE, IDC_COMP_SOFTNEGATE_INSIDE_SPIN, 1.0,
        end,

    plSoftVolNegateComponent::kOutsidePower,        _T("PowerOutside"),     TYPE_FLOAT,     0, 0,   
        p_default, 0.0,
        p_range, 0.0, 100.0,
        p_ui,   TYPE_SPINNER,   EDITTYPE_POS_FLOAT, 
        IDC_COMP_SOFTNEGATE_OUTSIDE, IDC_COMP_SOFTNEGATE_OUTSIDE_SPIN, 1.0,
        end,


    end

);

plSoftVolNegateComponent::plSoftVolNegateComponent()
{
    fClassDesc = &gSoftVolNegateDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSoftVolNegateComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    return plSoftVolBaseComponent::SetupProperties(pNode, errMsg);
}

plKey plSoftVolNegateComponent::ICreateSoftVolume()
{
    if( NumTargets() < 1 )
        return nil;

    INode* subNode = fCompPB->GetINode(kSubVolume);
    if( subNode )
    {
        plKey subKey = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSubVolume))->GetSoftVolume();
        if( subKey )
        {
            fSoftKey = IInvertVolume(subKey);

            if( fCompPB->GetInt(kPartialEnabled) )
            {
                plSoftVolumeInvert* invert = plSoftVolumeInvert::ConvertNoRef(fSoftKey->GetObjectPtr());
                if( invert )
                {
                    invert->SetInsideStrength(fCompPB->GetFloat(kInsidePower) * 0.01f);
                    invert->SetOutsideStrength(fCompPB->GetFloat(kOutsidePower) * 0.01f);
                }
            }
            return fSoftKey;
        }
    }
    return nil;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Soft Light Region
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plLightRegionComponent : public plComponent
{
public:
    enum {
        kSoftVolume
    };
public:
    plLightRegionComponent();
    void DeleteThis() { delete this; }

    // SetupProperties - Internal setup and write-only set properties on the MaxNode. No reading
    // of properties on the MaxNode, as it's still indeterminant.
    bool SetupProperties(plMaxNode *pNode, plErrorMsg *errMsg);

    bool PreConvert(plMaxNode *pNode, plErrorMsg *errMsg);
    bool Convert(plMaxNode *node, plErrorMsg *errMsg);
};

// When one of our parameters that is a ref changes, send out the component ref
// changed message.  Normally, messages from component refs are ignored since
// they pass along all the messages of the ref, which generates a lot of false
// converts.
class plLightRegionAccessor : public PBAccessor
{
public:
    void Set(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t)
    {
        if (id == plLightRegionComponent::kSoftVolume)
        {
            plLightRegionComponent *comp = (plLightRegionComponent*)owner;
            comp->NotifyDependents(FOREVER, PART_ALL, REFMSG_USER_COMP_REF_CHANGED);
        }
    }
};
plLightRegionAccessor gLightRegionAccessor;


static plSingleCompSelProc gLightRegionSingleSel(plLightRegionComponent::kSoftVolume, IDC_COMP_LIGHTREGION_CHOOSE_VOLUME, "Select soft region for light");


//Max desc stuff necessary below.
CLASS_DESC(plLightRegionComponent, gLightRegionDesc, "Light Region",  "LightRegion", COMP_TYPE_VOLUME, LIGHTREGION_CID)


ParamBlockDesc2 gLightRegionBk
(   // KLUDGE: not the defined block ID, but kept for backwards compat.
 plComponent::kBlkComp, _T("LightRegion"), 0, &gLightRegionDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_LIGHTREGION, IDS_COMP_LIGHTREGION, 0, 0, &gLightRegionSingleSel,

    plLightRegionComponent::kSoftVolume, _T("Region"),  TYPE_INODE,     0, 0,
        p_accessor,     &gLightRegionAccessor,
        end,
    end
);

plLightRegionComponent::plLightRegionComponent()
{
    fClassDesc = &gLightRegionDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plLightRegionComponent::Convert(plMaxNode *node, plErrorMsg *errMsg)
{
    if( !fCompPB->GetINode(kSoftVolume) )
        return true;

    plSceneObject* sceneObj = node->GetSceneObject();
    if( !sceneObj )
        return true;

    plLightInfo* li = plLightInfo::ConvertNoRef(sceneObj->GetGenericInterface(plLightInfo::Index()));
    if( !li )
        return true;

    plSoftVolBaseComponent* softComp = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSoftVolume));
    if( !softComp )
        return true;

    plKey softKey = softComp->GetSoftVolume();
    if( !softKey )
        return true;

    hsgResMgr::ResMgr()->AddViaNotify(softKey, new plGenRefMsg(li->GetKey(), plRefMsg::kOnCreate, 0, plLightInfo::kSoftVolume), plRefFlags::kActiveRef);

    return true;
}

bool plLightRegionComponent::PreConvert(plMaxNode *pNode,  plErrorMsg *errMsg)
{

    return true;
}

// SetupProperties - Internal setup and write-only set properties on the MaxNode. No reading
// of properties on the MaxNode, as it's still indeterminant.
bool plLightRegionComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{

    return true;
}


/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Soft Visibility Region
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plVisRegionSingleSel : public plSingleCompSelProc
{
public:
    plVisRegionSingleSel(ParamID nodeID, int dlgItem, TCHAR *title)
        :   plSingleCompSelProc(nodeID, dlgItem, title)
    {
    }
    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
    {
        switch (msg)
        {
        case WM_INITDIALOG:
            {
                IParamBlock2 *pb = map->GetParamBlock();
                if( pb->GetInt(plVisRegionComponent::kExcludes) )
                {
                    map->Enable(plVisRegionComponent::kDisableNormal, FALSE);
                    map->Enable(plVisRegionComponent::kAffectDraw, TRUE);
                    map->Enable(plVisRegionComponent::kAffectLight, TRUE);
                    map->Enable(plVisRegionComponent::kAffectOcc, TRUE);
                }
                else
                {
                    map->Enable(plVisRegionComponent::kDisableNormal, TRUE);
                    if( pb->GetInt(plVisRegionComponent::kDisableNormal) )
                    {
                        map->Enable(plVisRegionComponent::kAffectDraw, FALSE);
                        map->Enable(plVisRegionComponent::kAffectLight, FALSE);
                        map->Enable(plVisRegionComponent::kAffectOcc, FALSE);
                    }
                    else
                    {
                        map->Enable(plVisRegionComponent::kAffectDraw, TRUE);
                        map->Enable(plVisRegionComponent::kAffectLight, TRUE);
                        map->Enable(plVisRegionComponent::kAffectOcc, TRUE);
                    }
                }
            }
            break;
        case WM_COMMAND:
            {
                if( (LOWORD(wParam) == IDC_COMP_VISREGION_NOT) || (LOWORD(wParam) == IDC_COMP_VISREGION_DIS) )
                {
                    IParamBlock2 *pb = map->GetParamBlock();
                    if( pb->GetInt(plVisRegionComponent::kExcludes) )
                    {
                        map->Enable(plVisRegionComponent::kDisableNormal, FALSE);
                        map->Enable(plVisRegionComponent::kAffectDraw, TRUE);
                        map->Enable(plVisRegionComponent::kAffectLight, TRUE);
                        map->Enable(plVisRegionComponent::kAffectOcc, TRUE);
                    }
                    else
                    {
                        map->Enable(plVisRegionComponent::kDisableNormal, TRUE);
                        if( pb->GetInt(plVisRegionComponent::kDisableNormal) )
                        {
                            map->Enable(plVisRegionComponent::kAffectDraw, FALSE);
                            map->Enable(plVisRegionComponent::kAffectLight, FALSE);
                            map->Enable(plVisRegionComponent::kAffectOcc, FALSE);
                        }
                        else
                        {
                            map->Enable(plVisRegionComponent::kAffectDraw, TRUE);
                            map->Enable(plVisRegionComponent::kAffectLight, TRUE);
                            map->Enable(plVisRegionComponent::kAffectOcc, TRUE);
                        }
                    }
                    return TRUE;
                }
            }
            break;
        }
        return plSingleCompSelProc::DlgProc(t, map, hWnd, msg, wParam, lParam);
    }
};

static plVisRegionSingleSel gVisRegionSingleSel(plVisRegionComponent::kSoftVolume, IDC_COMP_VISREGION_CHOOSE_VOLUME, "Select region for visibility");


//Max desc stuff necessary below.
CLASS_DESC(plVisRegionComponent, gVisRegionDesc, "Visibility Region",  "VisRegion", COMP_TYPE_VOLUME, VISREGION_CID)


ParamBlockDesc2 gVisRegionBk
(   // KLUDGE: not the defined block ID, but kept for backwards compat.
 plComponent::kBlkComp, _T("VisRegion"), 0, &gVisRegionDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_VISREGION, IDS_COMP_VISREGION, 0, 0, &gVisRegionSingleSel,

    plVisRegionComponent::kSoftVolume, _T("Region"),    TYPE_INODE,     0, 0,
        p_accessor,     nil,
        end,

    plVisRegionComponent::kAffectDraw,  _T("AffectDraw"), TYPE_BOOL,        0, 0,
        p_default,  TRUE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_VISREGION_DRAW,
        end,

    plVisRegionComponent::kAffectLight,  _T("AffectLight"), TYPE_BOOL,      0, 0,
        p_default,  TRUE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_VISREGION_LIGHT,
        end,

    plVisRegionComponent::kAffectOcc,  _T("AffectOcc"), TYPE_BOOL,      0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_VISREGION_OCC,
        end,

    plVisRegionComponent::kExcludes,  _T("Excludes"), TYPE_BOOL,        0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_VISREGION_NOT,
        end,

    plVisRegionComponent::kDisableNormal,   _T("DisableNormal"), TYPE_BOOL,         0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_VISREGION_DIS,
        end,

    end
);

plVisRegionComponent::plVisRegionComponent()
{
    fClassDesc = &gVisRegionDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

void plVisRegionComponent::ICheckVisRegion(const plLocation& loc)
{
    if( !fVisReg )
    {
        if( !fCompPB->GetINode(kSoftVolume) )
            return;

        plSoftVolBaseComponent* softComp = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSoftVolume));
        if( !softComp )
            return;

        plKey softKey = softComp->GetSoftVolume();
        if( !softKey )
            return;

        fVisReg = new plVisRegion;
        plKey key = hsgResMgr::ResMgr()->NewKey(plString::FromUtf8(GetINode()->GetName()), fVisReg, loc);


        bool excludes = fCompPB->GetInt(kExcludes);
        bool disableNormal = excludes ? false : fCompPB->GetInt(kDisableNormal);

        fVisReg->SetProperty(plVisRegion::kIsNot, excludes);
        fVisReg->SetProperty(plVisRegion::kReplaceNormal, true);
        fVisReg->SetProperty(plVisRegion::kDisableNormal, disableNormal);

        plGenRefMsg* refMsg = new plGenRefMsg(fVisReg->GetKey(), plRefMsg::kOnCreate, 0, plVisRegion::kRefRegion);
        hsgResMgr::ResMgr()->SendRef(softKey, refMsg, plRefFlags::kActiveRef);
    }
}

bool plVisRegionComponent::Convert(plMaxNode *node, plErrorMsg *errMsg)
{
    const char* dbgNodeName = node->GetName();
    plSceneObject* obj = node->GetSceneObject();
    if( !obj )
        return true;

    bool excludes = fCompPB->GetInt(kExcludes);
    bool disableNormal = excludes ? false : fCompPB->GetInt(kDisableNormal);
    bool affectDraw = disableNormal ? true : fCompPB->GetInt(kAffectDraw);
    bool affectOcc = disableNormal ? true : fCompPB->GetInt(kAffectOcc);
    bool affectLight = disableNormal ? true : fCompPB->GetInt(kAffectLight);

    const plDrawInterface* di = affectDraw ? obj->GetDrawInterface() : nil;
    plOccluder* occ = affectOcc ? (plOccluder*)obj->GetGenericInterface(plOccluder::Index()) : nil;
    plLightInfo* li = affectLight ? (plLightInfo*)obj->GetGenericInterface(plLightInfo::Index()) : nil;
    if( !(disableNormal || di || occ || li) )
        return true;

    ICheckVisRegion(node->GetLocation());
    if( !fVisReg )
        return true;

    if( di )
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(di->GetKey(), plRefMsg::kOnCreate, 0, plDrawInterface::kRefVisRegion), plRefFlags::kActiveRef);

    if( occ )
    {
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(occ->GetKey(), plRefMsg::kOnCreate, 0, plOccluder::kRefVisRegion), plRefFlags::kActiveRef);
    }

    if( li )
    {
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(li->GetKey(), plRefMsg::kOnCreate, 0, plLightInfo::kVisRegion), plRefFlags::kActiveRef);
    }

    if( !(di || occ || li) )
    {
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plObjRefMsg(obj->GetKey(), plRefMsg::kOnCreate, -1, plObjRefMsg::kInterface), plRefFlags::kActiveRef);
    }

    return true;
}

bool plVisRegionComponent::PreConvert(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    fVisReg = nil;

    return true;
}

// SetupProperties - Internal setup and write-only set properties on the MaxNode. No reading
// of properties on the MaxNode, as it's still indeterminant.
bool plVisRegionComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{

    return true;
}

void plVisRegionComponent::CollectRegions(plMaxNode* node, hsTArray<plVisRegion*>& regions)
{
    int i;
    for( i = 0; i < node->NumAttachedComponents(); i++ )
    {
        plComponentBase* comp = node->GetAttachedComponent(i);
        if( comp && comp->ClassID() == VISREGION_CID )
        {
            plVisRegionComponent* regComp = (plVisRegionComponent*)comp;
            if( regComp )
            {
                regComp->ICheckVisRegion(node->GetLocation());
                if( regComp->fVisReg )
                    regions.Append(regComp->fVisReg);
            }
        }
    }
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Relevance Region
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plRelevanceRegionComponent : public plComponent
{
public:
    enum {
        kSoftVolume,
        kName,
    };
protected:
    plRelevanceRegion* fRegion;

public:
    plRelevanceRegionComponent();
    void DeleteThis() { delete this; }

    bool PreConvert(plMaxNode *pNode, plErrorMsg *errMsg);
    bool Convert(plMaxNode *node, plErrorMsg *errMsg);
};


static plSingleCompSelProc gRelevanceRegionSingleSel(plRelevanceRegionComponent::kSoftVolume, IDC_COMP_RELREGION_CHOOSE_VOLUME, "Select region");


//Max desc stuff necessary below.
CLASS_DESC(plRelevanceRegionComponent, gRelevanceRegionDesc, "Relevance Region",  "RelevanceRegion", COMP_TYPE_VOLUME, RELREGION_CID)


ParamBlockDesc2 gRelevanceRegionBk
(
    plComponent::kBlkComp, _T("RelevanceRegion"), 0, &gRelevanceRegionDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_RELREGION, IDS_COMP_RELREGION, 0, 0, &gRelevanceRegionSingleSel,

    plRelevanceRegionComponent::kSoftVolume, _T("Region"),  TYPE_INODE,     0, 0,
        p_accessor,     nil,
        end,
        
    end
);

plRelevanceRegionComponent::plRelevanceRegionComponent()
{
    fClassDesc = &gRelevanceRegionDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plRelevanceRegionComponent::Convert(plMaxNode *node, plErrorMsg *errMsg)
{
    const char* dbgNodeName = node->GetName();
    plSceneObject* obj = node->GetSceneObject();
    if( !obj )
        return true;

    if( !fRegion )
    {
        if( !fCompPB->GetINode(kSoftVolume) )
            return true;

        plSoftVolBaseComponent* softComp = plSoftVolBaseComponent::GetSoftComponent(fCompPB->GetINode(kSoftVolume));
        if( !softComp )
            return true;

        plKey softKey = softComp->GetSoftVolume();
        if( !softKey )
            return true;

        fRegion = new plRelevanceRegion;
        plKey key = hsgResMgr::ResMgr()->NewKey(plString::FromUtf8(GetINode()->GetName()), fRegion, node->GetLocation());

        plGenRefMsg* refMsg = new plGenRefMsg(fRegion->GetKey(), plRefMsg::kOnCreate, 0, 0);
        hsgResMgr::ResMgr()->SendRef(softKey, refMsg, plRefFlags::kActiveRef);
    }

    hsgResMgr::ResMgr()->AddViaNotify(fRegion->GetKey(), new plObjRefMsg(obj->GetKey(), plRefMsg::kOnCreate, 0, plObjRefMsg::kInterface), plRefFlags::kActiveRef);
    
    return true;
}

bool plRelevanceRegionComponent::PreConvert(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    fRegion = nil;

    return true;
}

/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Special Effects Visibility Set
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////



//Max desc stuff necessary below.
CLASS_DESC(plEffVisSetComponent, gEffVisSetDesc, "Effect Vis Set",  "EffVisSet", COMP_TYPE_VOLUME, EFFVISSET_CID)


ParamBlockDesc2 gEffVisSetBk
(   // KLUDGE: not the defined block ID, but kept for backwards compat.
 plComponent::kBlkComp, _T("EffVisSet"), 0, &gEffVisSetDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_EFFVISSET, IDS_COMP_EFFVISSET, 0, 0, NULL,

    plEffVisSetComponent::kHideNormal,  _T("HideNormal"), TYPE_BOOL,        0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_EFFVISSET_HIDENORMAL,
        end,

    end
);

plEffVisSetComponent::plEffVisSetComponent()
{
    fClassDesc = &gEffVisSetDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plEffVisSetComponent::Convert(plMaxNode *node, plErrorMsg *errMsg)
{
    const char* dbgNodeName = node->GetName();
    plSceneObject* obj = node->GetSceneObject();
    if( !obj )
        return true;

    const plDrawInterface* di = obj->GetDrawInterface();
    plOccluder* occ = (plOccluder*)obj->GetGenericInterface(plOccluder::Index());
    plLightInfo* li = (plLightInfo*)obj->GetGenericInterface(plLightInfo::Index());
    if( !(di || occ || li) )
        return true;

    if( !GetVisRegion(node) )
        return false;

    if( di )
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(di->GetKey(), plRefMsg::kOnCreate, 0, plDrawInterface::kRefVisRegion), plRefFlags::kActiveRef);

    if( occ )
    {
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(occ->GetKey(), plRefMsg::kOnCreate, 0, plOccluder::kRefVisRegion), plRefFlags::kActiveRef);
    }

    if( li )
    {
        hsgResMgr::ResMgr()->AddViaNotify(fVisReg->GetKey(), new plGenRefMsg(li->GetKey(), plRefMsg::kOnCreate, 0, plLightInfo::kVisRegion), plRefFlags::kActiveRef);
    }

    return true;
}

// SetupProperties - Internal setup and write-only set properties on the MaxNode. No reading
// of properties on the MaxNode, as it's still indeterminant.
bool plEffVisSetComponent::SetupProperties(plMaxNode *pNode,  plErrorMsg *errMsg)
{
    fVisReg = nil;

    return true;
}

plVisRegion* plEffVisSetComponent::GetVisRegion(plMaxNode* node)
{
    if( !fVisReg )
    {
        fVisReg = new plVisRegion;
        plKey key = hsgResMgr::ResMgr()->NewKey(plString::FromUtf8(GetINode()->GetName()), fVisReg, node->GetLocation());

        fVisReg->SetProperty(plVisRegion::kIsNot, false);
        fVisReg->SetProperty(plVisRegion::kReplaceNormal, fCompPB->GetInt(kHideNormal));
        fVisReg->SetProperty(plVisRegion::kDisable, true);
    }

    return fVisReg;
}


plEffVisSetComponent* plEffVisSetComponent::ConvertToEffVisSetComponent(plMaxNode* node)
{
    if( !node )
        return nil;

    plComponentBase *comp = node->ConvertToComponent();

    // If this is an activator type component
    if( comp )
    {
        if( comp->ClassID() == EFFVISSET_CID )
        {
            return (plEffVisSetComponent*)comp;
        }
    }
    return nil;
}

void plEffVisSetComponent::CollectRegions(plMaxNode* node, hsTArray<plVisRegion*>& regions)
{
    int i;
    for( i = 0; i < node->NumAttachedComponents(); i++ )
    {
        plComponentBase* comp = node->GetAttachedComponent(i);
        if( comp && comp->ClassID() == EFFVISSET_CID )
        {
            plEffVisSetComponent* regComp = (plEffVisSetComponent*)comp;
            if( regComp )
            {
                if( regComp->fVisReg )
                    regions.Append(regComp->fVisReg);
            }
        }
    }
}