CWE-ou-minkata/Sources/Tools/MaxComponent/plSmoothComponent.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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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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 or by snail mail at:
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*==LICENSE==*/

#include "HeadSpin.h"

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

#include <iparamm2.h>
#pragma hdrstop

#include "plDrawable/plDrawableSpans.h"

// The AccMeshSmooth now does everything the InterMeshSmooth and AvMeshSmooth
// components did, only better and with fewer bugs.
//#include "plDrawable/plInterMeshSmooth.h"
#include "plDrawable/plAvMeshSmooth.h"

#include "plDrawable/plAccMeshSmooth.h"
#include "plDrawable/plGeometrySpan.h"
#include "plDrawable/plSharedMesh.h"

#include "pnSceneObject/plSceneObject.h"
#include "pnSceneObject/plDrawInterface.h"


const Class_ID CID_SMOOTHCOMP(0x7f926cbc, 0x58df5a44);
const Class_ID CID_SMOOTHAV(0xaf37a4f, 0x8c00991);
const Class_ID CID_SMOOTHBASE(0xebd3ccd, 0x8e85ea6);
const Class_ID CID_SMOOTHSNAP(0x7768074c, 0x65197b77);


void DummyCodeIncludeFuncSmooth()
{

}


//Class that accesses the paramblock below.
class plSmoothComponent : public plComponent
{
public:
    enum {
        kSmoothAngle,
        kSmoothPos,
        kSmoothColor
    };
protected:
    bool                fDoneThis;
    bool                IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans);
    bool                IGetSpans(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans);
    bool                IReShade(plErrorMsg* pErrMsg);
    bool                ISmoothAll(plErrorMsg* pErrMsg);
public:
    plSmoothComponent();
    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.
    virtual bool SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg)    { fDoneThis = false; return true; }
    virtual bool PreConvert(plMaxNode *node, plErrorMsg *pErrMsg)     { fDoneThis = false; return true; }
    virtual bool Convert(plMaxNode *node, plErrorMsg *pErrMsg);
};

//Max desc stuff necessary below.
CLASS_DESC(plSmoothComponent, gSmoothDesc, "Smooth",  "Smooth", COMP_TYPE_GRAPHICS, CID_SMOOTHCOMP)


ParamBlockDesc2 gSmoothBk
(   
 plComponent::kBlkComp, _T("Smooth"), 0, &gSmoothDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SMOOTH, IDS_COMP_SMOOTHS, 0, 0, NULL,

    plSmoothComponent::kSmoothAngle, _T("SmoothAngle"),     TYPE_FLOAT, 0, 0,
        p_default, 75.0f,
        p_range, 0.0, 180.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTH_ANGLE, IDC_COMP_SMOOTH_ANGLE_SPIN, 1.f,
        end,

    plSmoothComponent::kSmoothPos,  _T("SmoothPos"), TYPE_BOOL,         0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SMOOTH_POS,
        end,

    plSmoothComponent::kSmoothColor,  _T("SmoothColor"), TYPE_BOOL,         0, 0,
        p_default,  FALSE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SMOOTH_COLOR,
        end,

    end
);

plSmoothComponent::plSmoothComponent()
{
    fClassDesc = &gSmoothDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSmoothComponent::Convert(plMaxNode *node, plErrorMsg *pErrMsg)
{
    ISmoothAll(pErrMsg);

    return true;
}

bool plSmoothComponent::ISmoothAll(plErrorMsg* pErrMsg)
{
    if( !fDoneThis )
    {
        hsTArray<plGeometrySpan*> spans;

        IGetSpans(pErrMsg, spans);

        IDoSmooth(pErrMsg, spans);

        fDoneThis = true;
    }
    return true;
}

bool plSmoothComponent::IGetSpans(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans)
{
    spans.SetCount(0);

    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( !(node && node->CanConvert() && node->GetDrawable()) )
            continue;

        plSceneObject* obj = node->GetSceneObject();
        if( !obj )
            continue;

        const plDrawInterface* di = obj->GetDrawInterface();
        if( !di )
            continue;

        uint8_t iDraw;
        for( iDraw = 0; iDraw < di->GetNumDrawables(); iDraw++ )
        {
            plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable(iDraw));
            if( !dr )
                continue;

            plDISpanIndex disi = dr->GetDISpans(di->GetDrawableMeshIndex(iDraw));

            int i;
            for( i = 0; i < disi.fIndices.GetCount(); i++ )
            {
                spans.Append(dr->GetSourceSpans()[disi.fIndices[i]]);
            }
        }
    }

    return true;
}

bool plSmoothComponent::IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans)
{
//  if( spans.GetCount() > 1 )
    {
        plAccMeshSmooth smoother;
        smoother.SetAngle(fCompPB->GetFloat(kSmoothAngle));
        smoother.SetFlags(plAccMeshSmooth::kSmoothNorm);
        if( fCompPB->GetInt(kSmoothPos) )
            smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothPos);
        if( fCompPB->GetInt(kSmoothColor) )
            smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothDiffuse);
        smoother.Smooth(spans);
    }

    return true;
}

bool plSmoothComponent::IReShade(plErrorMsg* pErrMsg)
{
    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( node )
            node->ShadeMesh(pErrMsg, nil);
    }
    return true;
}


///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
// Now an avatar specific version
///////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plSmoothAvComponent : public plComponent
{
public:
    enum {
        kSmoothAngle,
        kDistTol,
        kSmoothPos
    };
protected:
    bool                fDoneThis;
    bool                IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans);
    bool                IGetSpans(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans);
    bool                IReShade(plErrorMsg* pErrMsg);
    bool                ISmoothAll(plErrorMsg* pErrMsg);
public:
    plSmoothAvComponent();
    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.
    virtual bool SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg)    { fDoneThis = false; return true; }
    virtual bool PreConvert(plMaxNode *node, plErrorMsg *pErrMsg)     { fDoneThis = false; return true; }
    virtual bool Convert(plMaxNode *node, plErrorMsg *pErrMsg);
};

//Max desc stuff necessary below.
CLASS_DESC(plSmoothAvComponent, gSmoothAvDesc, "Avatar Smooth",  "AvSmooth", COMP_TYPE_GRAPHICS, CID_SMOOTHAV)


ParamBlockDesc2 gSmoothAvBk
(   
 plComponent::kBlkComp, _T("SmoothAv"), 0, &gSmoothAvDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SMOOTHAV, IDS_COMP_SMOOTHAV, 0, 0, NULL,

    plSmoothAvComponent::kSmoothAngle, _T("SmoothAngle"),       TYPE_FLOAT, 0, 0,
        p_default, 75.0f,
        p_range, 0.0, 180.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHAV_ANGLE, IDC_COMP_SMOOTHAV_ANGLE_SPIN, 1.f,
        end,

    plSmoothAvComponent::kDistTol, _T("DistTol"),       TYPE_FLOAT, 0, 0,
        p_default, 0.001f,
        p_range, 0.0, 1.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHAV_DIST, IDC_COMP_SMOOTHAV_DIST_SPIN, 0.01f,
        end,

    plSmoothAvComponent::kSmoothPos,  _T("SmoothPos"), TYPE_BOOL,       0, 0,
        p_default,  TRUE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SMOOTHAV_POS,
        end,

    end
);

plSmoothAvComponent::plSmoothAvComponent()
{
    fClassDesc = &gSmoothAvDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSmoothAvComponent::Convert(plMaxNode *node, plErrorMsg *pErrMsg)
{
    ISmoothAll(pErrMsg);

    return true;
}

bool plSmoothAvComponent::ISmoothAll(plErrorMsg* pErrMsg)
{
    if( !fDoneThis )
    {
        hsTArray<plGeometrySpan*> spans;

        IGetSpans(pErrMsg, spans);

        IDoSmooth(pErrMsg, spans);

        fDoneThis = true;
    }
    return true;
}

bool plSmoothAvComponent::IGetSpans(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans)
{
    spans.SetCount(0);

    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( !node )
            continue;

        plSharedMesh* sharedMesh = node->GetSwappableGeom();
        if( !sharedMesh )
            continue;

        int j;
        for( j = 0; j < sharedMesh->fSpans.GetCount(); j++ )
        {
            if( sharedMesh->fSpans[j] )
                spans.Append(sharedMesh->fSpans[j]);
        }
    }

    return true;
}

bool plSmoothAvComponent::IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plGeometrySpan*>& spans)
{
    if( spans.GetCount() > 1 )
    {
        plAccMeshSmooth smoother;
        smoother.SetAngle(fCompPB->GetFloat(kSmoothAngle));
        smoother.SetDistTol(fCompPB->GetFloat(kDistTol));
        smoother.SetFlags(plAccMeshSmooth::kSmoothNorm);
        if( fCompPB->GetInt(kSmoothPos) )
            smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothPos);
        smoother.Smooth(spans);
    }

    return true;
}

bool plSmoothAvComponent::IReShade(plErrorMsg* pErrMsg)
{
    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( node )
            node->ShadeMesh(pErrMsg, nil);
    }
    return true;
}

///////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////
// Tiny component to reference a bunch of meshes. These meshes will be used for reference,
// but not actually exported (unless someone else grabs them too.)
///////////////////////////////////////////////////////////////////////////////////////////////////

class plSmoothBaseComponent : public plComponent
{
protected:
    hsTArray<plAvMeshSmooth::XfmSpan>   fSpans;

public:
    enum {
        kSmoothAngle,
        kDistTol,
        kSmoothPos
    };

    plSmoothBaseComponent();
    void DeleteThis() { delete this; }

    hsTArray<plAvMeshSmooth::XfmSpan>& GetSpans(plErrorMsg* pErrMsg);

    float GetSmoothAngle() const { return fCompPB->GetFloat(kSmoothAngle); }
    float GetDistTol() const { return fCompPB->GetFloat(kDistTol); }
    bool SmoothPosition() const { return 0 != fCompPB->GetInt(kSmoothPos); }

    static plSmoothBaseComponent* GetSmoothBaseComp(INode* node);
    
    // SetupProperties - Internal setup and write-only set properties on the MaxNode. No reading
    // of properties on the MaxNode, as it's still indeterminant.
    virtual bool SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg);
    virtual bool Convert(plMaxNode *node, plErrorMsg *pErrMsg);
};

//Max desc stuff necessary below.
CLASS_DESC(plSmoothBaseComponent, gSmoothBaseDesc, "Smoothing Base",  "SmoothBase", COMP_TYPE_GRAPHICS, CID_SMOOTHBASE)

ParamBlockDesc2 gSmoothBaseBk
(   
    plComponent::kBlkComp, _T("SmoothBase"), 0, &gSmoothBaseDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SMOOTHBASE, IDS_COMP_SMOOTHBASE, 0, 0, NULL,

    plSmoothBaseComponent::kSmoothAngle, _T("SmoothAngle"),     TYPE_FLOAT, 0, 0,
        p_default, 75.0f,
        p_range, 0.0, 180.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHBASE_ANGLE, IDC_COMP_SMOOTHBASE_ANGLE_SPIN, 1.f,
        end,

    plSmoothBaseComponent::kDistTol, _T("DistTol"),     TYPE_FLOAT, 0, 0,
        p_default, 0.001f,
        p_range, 0.0, 1.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHBASE_DIST, IDC_COMP_SMOOTHBASE_DIST_SPIN, 0.01f,
        end,

    plSmoothBaseComponent::kSmoothPos,  _T("SmoothPos"), TYPE_BOOL,         0, 0,
        p_default,  TRUE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SMOOTHBASE_POS,
        end,

    end
);

plSmoothBaseComponent::plSmoothBaseComponent()
{
    fClassDesc = &gSmoothBaseDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSmoothBaseComponent::SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg)
{
    node->SetDrawable(false);
    if (!node->GetSwappableGeom())
        node->SetSwappableGeom(new plSharedMesh);

    fSpans.SetCount(0);

    return true;
}
    
bool plSmoothBaseComponent::Convert(plMaxNode *node, plErrorMsg *pErrMsg)
{
    GetSpans(pErrMsg);
    return true;
}

plSmoothBaseComponent* plSmoothBaseComponent::GetSmoothBaseComp(INode* node)
{
    if( !node )
        return nil;

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

    if( comp->ClassID() == CID_SMOOTHBASE )
        return (plSmoothBaseComponent*)comp;

    return nil;
}


// Only valid after the MakeMesh phase.
hsTArray<plAvMeshSmooth::XfmSpan>& plSmoothBaseComponent::GetSpans(plErrorMsg* pErrMsg)
{
    if( !fSpans.GetCount() )
    {
        uint32_t count = NumTargets();
        uint32_t i;
        hsTArray<plGeometrySpan*> spans;

        for( i = 0; i < count; i++ )
        {
            plMaxNode *node = (plMaxNode*)GetTarget(i);
            if( !node )
                continue;

            plSharedMesh* sharedMesh = node->GetSwappableGeom();
            if( !sharedMesh )
                continue;

            int j;
            for( j = 0; j < sharedMesh->fSpans.GetCount(); j++ )
            {
                if( sharedMesh->fSpans[j] )
                {
                    spans.Append(sharedMesh->fSpans[j]);
                    plAvMeshSmooth::XfmSpan xfmSpan;
                    xfmSpan.fSpan = sharedMesh->fSpans[j];

                    xfmSpan.fSpanToNeutral = node->GetOTM44() * node->GetLocalToVert44();
                    xfmSpan.fSpanToNeutral.GetInverse(&xfmSpan.fNeutralToSpan);

                    xfmSpan.fSpanToNeutral.GetTranspose(&xfmSpan.fNormNeutralToSpan);
                    xfmSpan.fNeutralToSpan.GetTranspose(&xfmSpan.fNormSpanToNeutral);

                    fSpans.Append(xfmSpan);
                }
            }
        }
        if( spans.GetCount() > 1 )
        {
            plAccMeshSmooth smoother;
            smoother.SetAngle(fCompPB->GetFloat(kSmoothAngle));
            smoother.SetDistTol(fCompPB->GetFloat(kDistTol));
            smoother.SetFlags(plAccMeshSmooth::kSmoothNorm);
            if( fCompPB->GetInt(kSmoothPos) )
                smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothPos);
            smoother.Smooth(spans);
        }
    }

    return fSpans;
}

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

///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
// Now another avatar specific version
///////////////////////////////////////////////////////////////////////////////////////////////

//Class that accesses the paramblock below.
class plSmoothSnapComponent : public plComponent
{
public:
    enum {
        kSmoothBase,
        kSmoothAngle,
        kDistTol,
        kSmoothPos
    };
protected:
    bool                fDoneThis;

    hsTArray<plAvMeshSmooth::XfmSpan>& IGetSrcSpans(plErrorMsg* pErrMsg);

    bool                IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plAvMeshSmooth::XfmSpan>& srcSpans, hsTArray<plAvMeshSmooth::XfmSpan>& dstSpans);
    bool                IGetDstSpans(plErrorMsg* pErrMsg, hsTArray<plAvMeshSmooth::XfmSpan>& spans);
    bool                IReShade(plErrorMsg* pErrMsg);
    bool                ISmoothAll(plErrorMsg* pErrMsg);
public:
    plSmoothSnapComponent();
    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.
    virtual bool SetupProperties(plMaxNode *node, plErrorMsg *pErrMsg)    { fDoneThis = false; return true; }
    virtual bool PreConvert(plMaxNode *node, plErrorMsg *pErrMsg)     { fDoneThis = false; return true; }
    virtual bool Convert(plMaxNode *node, plErrorMsg *pErrMsg);
};


class plSmoothBaseSelProc : public ParamMap2UserDlgProc
{
public:
    BOOL DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
    void DeleteThis() { }
};

#include "plPickNode.h"

BOOL plSmoothBaseSelProc::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(plSmoothSnapComponent::kSmoothBase);
            TSTR newName(node ? node->GetName() : "Pick");
            ::SetWindowText(::GetDlgItem(hWnd, IDC_COMP_SMOOTH_CHOSE), newName);
        }
        return true;

    case WM_COMMAND:
        if( (HIWORD(wParam) == BN_CLICKED) && (LOWORD(wParam) == IDC_COMP_SMOOTH_CHOSE) )
        {
            IParamBlock2 *pb = paramMap->GetParamBlock();
            std::vector<Class_ID> cids;
            cids.push_back(CID_SMOOTHBASE);
            if( plPick::Node(pb, plSmoothSnapComponent::kSmoothBase, &cids, true, true) )
            {
                INode* node = pb->GetINode(plSmoothSnapComponent::kSmoothBase);
                TSTR newName(node ? node->GetName() : "Pick");
                ::SetWindowText(::GetDlgItem(hWnd, IDC_COMP_SMOOTH_CHOSE), newName);
                paramMap->Invalidate(plSmoothSnapComponent::kSmoothBase);
                ShowWindow(hWnd, SW_HIDE);
                ShowWindow(hWnd, SW_SHOW);
            }

            return false;
        }
        return true;
    }

    return false;
}

plSmoothBaseSelProc gSmoothBaseSelProc;

//Max desc stuff necessary below.
CLASS_DESC(plSmoothSnapComponent, gSmoothSnapDesc, "Snap to Base",  "SnapTo", COMP_TYPE_GRAPHICS, CID_SMOOTHSNAP)


ParamBlockDesc2 gSmoothSnapBk
(   
 plComponent::kBlkComp, _T("SmoothSnap"), 0, &gSmoothSnapDesc, P_AUTO_CONSTRUCT + P_AUTO_UI, plComponent::kRefComp,

    IDD_COMP_SMOOTHSNAP, IDS_COMP_SMOOTHSNAP, 0, 0, &gSmoothBaseSelProc,

    plSmoothSnapComponent::kSmoothBase, _T("SmoothBase"),   TYPE_INODE,     0, 0,
        end,

    plSmoothSnapComponent::kSmoothAngle, _T("SmoothAngle"),     TYPE_FLOAT, 0, 0,
        p_default, 75.0f,
        p_range, 0.0, 180.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHSNAP_ANGLE, IDC_COMP_SMOOTHSNAP_ANGLE_SPIN, 1.f,
        end,

    plSmoothSnapComponent::kDistTol, _T("DistTol"),     TYPE_FLOAT, 0, 0,
        p_default, 0.01f,
        p_range, 0.0, 1.0,
        p_ui,   TYPE_SPINNER, EDITTYPE_FLOAT, 
        IDC_COMP_SMOOTHSNAP_DIST, IDC_COMP_SMOOTHSNAP_DIST_SPIN, 0.01f,
        end,

    plSmoothSnapComponent::kSmoothPos,  _T("SmoothPos"), TYPE_BOOL,         0, 0,
        p_default,  TRUE,
        p_ui,   TYPE_SINGLECHEKBOX, IDC_COMP_SMOOTHSNAP_POS,
        end,

    end
);

plSmoothSnapComponent::plSmoothSnapComponent()
{
    fClassDesc = &gSmoothSnapDesc;
    fClassDesc->MakeAutoParamBlocks(this);
}

bool plSmoothSnapComponent::Convert(plMaxNode *node, plErrorMsg *pErrMsg)
{
    ISmoothAll(pErrMsg);

    return true;
}

bool plSmoothSnapComponent::ISmoothAll(plErrorMsg* pErrMsg)
{
    if( !fDoneThis )
    {
        fDoneThis = true;

        hsTArray<plAvMeshSmooth::XfmSpan>& srcSpans = IGetSrcSpans(pErrMsg);

        if( !srcSpans.GetCount() )
            return true;

        hsTArray<plAvMeshSmooth::XfmSpan> dstSpans;

        if( !IGetDstSpans(pErrMsg, dstSpans) )
            return true;

        IDoSmooth(pErrMsg, srcSpans, dstSpans);

    }
    return true;
}

hsTArray<plAvMeshSmooth::XfmSpan>& plSmoothSnapComponent::IGetSrcSpans(plErrorMsg* pErrMsg)
{
    static hsTArray<plAvMeshSmooth::XfmSpan> emptySpans;

    plSmoothBaseComponent* baseComp = plSmoothBaseComponent::GetSmoothBaseComp(fCompPB->GetINode(kSmoothBase, 0, 0));
    if( !baseComp )
        return emptySpans;

    return baseComp->GetSpans(pErrMsg);
}

bool plSmoothSnapComponent::IGetDstSpans(plErrorMsg* pErrMsg, hsTArray<plAvMeshSmooth::XfmSpan>& spans)
{
    hsTArray<plGeometrySpan*> geoSpans;
    spans.SetCount(0);

    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( !node )
            continue;

        plSharedMesh* sharedMesh = node->GetSwappableGeom();
        if( !sharedMesh )
            continue;

        int j;
        for( j = 0; j < sharedMesh->fSpans.GetCount(); j++ )
        {
            if( sharedMesh->fSpans[j] )
            {
                geoSpans.Append(sharedMesh->fSpans[j]);

                plAvMeshSmooth::XfmSpan xfmSpan;
                xfmSpan.fSpan = sharedMesh->fSpans[j];

                xfmSpan.fSpanToNeutral = node->GetOTM44() * node->GetLocalToVert44();
                xfmSpan.fSpanToNeutral.GetInverse(&xfmSpan.fNeutralToSpan);

                xfmSpan.fSpanToNeutral.GetTranspose(&xfmSpan.fNormNeutralToSpan);
                xfmSpan.fNeutralToSpan.GetTranspose(&xfmSpan.fNormSpanToNeutral);

                spans.Append(xfmSpan);
            }
        }
    }

    // Smooth them with themselves before we pass them off to be snapped to the base.
    // We'll use the base component's parameters, because ours will be sloppier to
    // ensure proper snapping.
    if( geoSpans.GetCount() )
    {
        plSmoothBaseComponent* baseComp = plSmoothBaseComponent::GetSmoothBaseComp(fCompPB->GetINode(kSmoothBase, 0, 0));
        if( !baseComp )
            return 0;

        plAccMeshSmooth smoother;
        smoother.SetAngle(baseComp->GetSmoothAngle());
        smoother.SetDistTol(baseComp->GetDistTol());
        smoother.SetFlags(plAccMeshSmooth::kSmoothNorm);
        if( baseComp->SmoothPosition() )
            smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothPos);
        smoother.Smooth(geoSpans);
    }

    return spans.GetCount();
}

bool plSmoothSnapComponent::IDoSmooth(plErrorMsg* pErrMsg, hsTArray<plAvMeshSmooth::XfmSpan>& srcSpans, hsTArray<plAvMeshSmooth::XfmSpan>& dstSpans)
{
    if( srcSpans.GetCount() && dstSpans.GetCount() )
    {
        plAvMeshSmooth smoother;
        smoother.SetAngle(fCompPB->GetFloat(kSmoothAngle));
        smoother.SetDistTol(fCompPB->GetFloat(kDistTol));
        smoother.SetFlags(plAccMeshSmooth::kSmoothNorm);
        if( fCompPB->GetInt(kSmoothPos) )
            smoother.SetFlags(smoother.GetFlags() | plAccMeshSmooth::kSmoothPos);
        smoother.Smooth(srcSpans, dstSpans);
    }

    return true;
}

bool plSmoothSnapComponent::IReShade(plErrorMsg* pErrMsg)
{
    uint32_t count = NumTargets();
    uint32_t i;
    for( i = 0; i < count; i++ )
    {
        plMaxNode *node = (plMaxNode*)GetTarget(i);
        if( node )
            node->ShadeMesh(pErrMsg, nil);
    }
    return true;
}