ntl_geometryobject.cpp

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/******************************************************************************
 *
 * El'Beem - Free Surface Fluid Simulation with the Lattice Boltzmann Method
 * Copyright 2003-2006 Nils Thuerey
 *
 * a geometry object
 * all other geometry objects are derived from this one
 *
 *****************************************************************************/


#include "ntl_geometryobject.h"
#include "ntl_world.h"
#include "ntl_matrices.h"

// for FGI
#include "elbeem.h"

#define TRI_UVOFFSET (1./4.)
//#define TRI_UVOFFSET (1./3.)


/*****************************************************************************/
/* Default constructor */
/*****************************************************************************/
ntlGeometryObject::ntlGeometryObject() :
    mIsInitialized(false), mpMaterial( NULL ),
    mMaterialName( "default" ),
    mCastShadows( 1 ), mReceiveShadows( 1 ),
    mGeoInitType( 0 ), 
    mInitialVelocity(0.0), mcInitialVelocity(0.0), mLocalCoordInivel(false),
    mGeoInitIntersect(false),
    mGeoPartSlipValue(0.0),
    mcGeoImpactFactor(1.),
    mVolumeInit(VOLUMEINIT_VOLUME),
    mInitialPos(0.),
    mcTrans(0.), mcRot(0.), mcScale(1.),
    mIsAnimated(false),
    mMovPoints(), mMovNormals(),
    mHaveCachedMov(false),
    mCachedMovPoints(), mCachedMovNormals(),
    mTriangleDivs1(), mTriangleDivs2(), mTriangleDivs3(),
    mMovPntsInited(-100.0), mMaxMovPnt(-1),
    mcGeoActive(1.),
    mCpsTimeStart(0.), mCpsTimeEnd(1.0), mCpsQuality(10.),
    mcAttrFStr(0.),mcAttrFRad(0.), mcVelFStr(0.), mcVelFRad(0.)
{ 
};


/*****************************************************************************/
/* Default destructor */
/*****************************************************************************/
ntlGeometryObject::~ntlGeometryObject() 
{
}

bool ntlGeometryObject::getMeshAnimated() {
    // off by default, on for e.g. ntlGeometryObjModel
    return false; 
}

bool ntlGeometryObject::checkIsAnimated() {
    if(    (mcTrans.accessValues().size()>1)  // VALIDATE
        || (mcRot.accessValues().size()>1) 
        || (mcScale.accessValues().size()>1) 
        || (mcGeoActive.accessValues().size()>1) 
            // mcGeoImpactFactor only needed when moving
        || (mcInitialVelocity.accessValues().size()>1) 
        ) {
        mIsAnimated = true;
    }

    // fluid objects always have static init!
    if(mGeoInitType==FGI_FLUID) {
        mIsAnimated=false;
    }
    //errMsg("ntlGeometryObject::checkIsAnimated","obj="<<getName()<<" debug: trans:"<<mcTrans.accessValues().size()<<" rot:"<<mcRot.accessValues().size()<<" scale:"<<mcScale.accessValues().size()<<" active:"<<mcGeoActive.accessValues().size()<<" inivel:"<<mcInitialVelocity.accessValues().size()<<". isani?"<<mIsAnimated ); // DEBUG
    return mIsAnimated;
}

/*****************************************************************************/
/* Init attributes etc. of this object */
/*****************************************************************************/
#define GEOINIT_STRINGS  10
static const char *initStringStrs[GEOINIT_STRINGS] = {
    "fluid",
    "bnd_no","bnd_noslip",
    "bnd_free","bnd_freeslip",
    "bnd_part","bnd_partslip",
    "inflow", "outflow", "control",
};
static int initStringTypes[GEOINIT_STRINGS] = {
    FGI_FLUID,
    FGI_BNDNO, FGI_BNDNO,
    FGI_BNDFREE, FGI_BNDFREE,
    FGI_BNDPART, FGI_BNDPART,
    FGI_MBNDINFLOW, FGI_MBNDOUTFLOW, 
    FGI_CONTROL
};
void ntlGeometryObject::initialize(ntlRenderGlobals *glob) 
{
    //debugOut("ntlGeometryObject::initialize: '"<<getName()<<"' ", 10);
    // initialize only once...
    if(mIsInitialized) return;
    
    // init material, always necessary
    searchMaterial( glob->getMaterials() );
    
    this->mGeoInitId = mpAttrs->readInt("geoinitid", this->mGeoInitId,"ntlGeometryObject", "mGeoInitId", false);
    mGeoInitIntersect = mpAttrs->readInt("geoinit_intersect", mGeoInitIntersect,"ntlGeometryObject", "mGeoInitIntersect", false);
    string ginitStr = mpAttrs->readString("geoinittype", "", "ntlGeometryObject", "mGeoInitType", false);
    if(this->mGeoInitId>=0) {
        bool gotit = false;
        for(int i=0; i<GEOINIT_STRINGS; i++) {
            if(ginitStr== initStringStrs[i]) {
                gotit = true;
                mGeoInitType = initStringTypes[i];
            }
        }

        if(!gotit) {
            errFatal("ntlGeometryObject::initialize","Obj '"<<mName<<"', Unkown 'geoinittype' value: '"<< ginitStr <<"' ", SIMWORLD_INITERROR);
            return;
        }
    }

    int geoActive = mpAttrs->readInt("geoinitactive", 1,"ntlGeometryObject", "geoActive", false);
    if(!geoActive) {
        // disable geo init again...
        this->mGeoInitId = -1;
    }
    mInitialVelocity  = vec2G( mpAttrs->readVec3d("initial_velocity", vec2D(mInitialVelocity),"ntlGeometryObject", "mInitialVelocity", false));
    if(getAttributeList()->exists("initial_velocity") || (!mcInitialVelocity.isInited()) ) {
        mcInitialVelocity = mpAttrs->readChannelVec3f("initial_velocity");
    }
    // always use channel
    if(!mcInitialVelocity.isInited()) { mcInitialVelocity = AnimChannel<ntlVec3Gfx>(mInitialVelocity); }
    mLocalCoordInivel = mpAttrs->readBool("geoinit_localinivel", mLocalCoordInivel,"ntlGeometryObject", "mLocalCoordInivel", false);

    mGeoPartSlipValue = mpAttrs->readFloat("geoinit_partslip", mGeoPartSlipValue,"ntlGeometryObject", "mGeoPartSlipValue", false);
    bool mOnlyThinInit = false; // deprecated!
    mOnlyThinInit     = mpAttrs->readBool("geoinit_onlythin", mOnlyThinInit,"ntlGeometryObject", "mOnlyThinInit", false);
    if(mOnlyThinInit) mVolumeInit = VOLUMEINIT_SHELL;
    mVolumeInit     = mpAttrs->readInt("geoinit_volumeinit", mVolumeInit,"ntlGeometryObject", "mVolumeInit", false);
    if((mVolumeInit<VOLUMEINIT_VOLUME)||(mVolumeInit>VOLUMEINIT_BOTH)) mVolumeInit = VOLUMEINIT_VOLUME;

    // moving obs correction factor
    float impactfactor=1.;
    impactfactor = (float)mpAttrs->readFloat("impactfactor", impactfactor,"ntlGeometryObject", "impactfactor", false);
    if(getAttributeList()->exists("impactfactor") || (!mcGeoImpactFactor.isInited()) ) {
        mcGeoImpactFactor = mpAttrs->readChannelSinglePrecFloat("impactfactor");
    }

    // override cfg types
    mVisible = mpAttrs->readBool("visible", mVisible,"ntlGeometryObject", "mVisible", false);
    mReceiveShadows = mpAttrs->readBool("recv_shad", mReceiveShadows,"ntlGeometryObject", "mReceiveShadows", false);
    mCastShadows = mpAttrs->readBool("cast_shad", mCastShadows,"ntlGeometryObject", "mCastShadows", false);

    // read mesh animation channels
    ntlVec3d translation(0.0);
    translation = mpAttrs->readVec3d("translation", translation,"ntlGeometryObject", "translation", false);
    if(getAttributeList()->exists("translation") || (!mcTrans.isInited()) ) {
        mcTrans = mpAttrs->readChannelVec3f("translation");
    }
    ntlVec3d rotation(0.0);
    rotation = mpAttrs->readVec3d("rotation", rotation,"ntlGeometryObject", "rotation", false);
    if(getAttributeList()->exists("rotation") || (!mcRot.isInited()) ) {
        mcRot = mpAttrs->readChannelVec3f("rotation");
    }
    ntlVec3d scale(1.0);
    scale = mpAttrs->readVec3d("scale", scale,"ntlGeometryObject", "scale", false);
    if(getAttributeList()->exists("scale") || (!mcScale.isInited()) ) {
        mcScale = mpAttrs->readChannelVec3f("scale");
    }

    float geoactive=1.;
    geoactive = (float)mpAttrs->readFloat("geoactive", geoactive,"ntlGeometryObject", "geoactive", false);
    if(getAttributeList()->exists("geoactive") || (!mcGeoActive.isInited()) ) {
        mcGeoActive = mpAttrs->readChannelSinglePrecFloat("geoactive");
    }
    // always use channel
    if(!mcGeoActive.isInited()) { mcGeoActive = AnimChannel<float>(geoactive); }

    checkIsAnimated();

    mIsInitialized = true;
    debMsgStd("ntlGeometryObject::initialize",DM_MSG,"GeoObj '"<<this->getName()<<"': visible="<<this->mVisible<<" gid="<<this->mGeoInitId<<" gtype="<<mGeoInitType<<","<<ginitStr<<
            " gvel="<<mInitialVelocity<<" gisect="<<mGeoInitIntersect, 10); // debug
}

// default action - do nothing...
void ntlGeometryObject::notifyOfDump(int dumtp, int frameNr,char *frameNrStr,string outfilename, double simtime) {
  bool debugOut=false;
    if(debugOut) debMsgStd("ntlGeometryObject::notifyOfDump",DM_MSG," dt:"<<dumtp<<" obj:"<<this->getName()<<" frame:"<<frameNrStr<<","<<frameNr<<",t"<<simtime<<" to "<<outfilename, 10); // DEBUG
}

/*****************************************************************************/
/* Search the material for this object from the material list */
/*****************************************************************************/
void ntlGeometryObject::searchMaterial(vector<ntlMaterial *> *mat)
{
    /* search the list... */
    int i=0;
    for (vector<ntlMaterial*>::iterator iter = mat->begin();
         iter != mat->end(); iter++) {
        if( mMaterialName == (*iter)->getName() ) {
            //warnMsg("ntlGeometryObject::searchMaterial","for obj '"<<getName()<<"' found - '"<<(*iter)->getName()<<"' "<<i); // DEBUG
            mpMaterial = (*iter);
            return;
        }
        i++;
    }
    errFatal("ntlGeometryObject::searchMaterial","Unknown material '"<<mMaterialName<<"' ! ", SIMWORLD_INITERROR);
    mpMaterial = new ntlMaterial();
    return;
}

/******************************************************************************
 * static add triangle function
 *****************************************************************************/
void ntlGeometryObject::sceneAddTriangle(
        ntlVec3Gfx  p1,ntlVec3Gfx  p2,ntlVec3Gfx  p3,
        ntlVec3Gfx pn1,ntlVec3Gfx pn2,ntlVec3Gfx pn3,
        ntlVec3Gfx trin, bool smooth,
        vector<ntlTriangle> *triangles,
        vector<ntlVec3Gfx>  *vertices,
        vector<ntlVec3Gfx>  *normals) {
    ntlTriangle tri;
    int tempVert;
  
    if(normals->size() != vertices->size()) {
        errFatal("ntlGeometryObject::sceneAddTriangle","For '"<<this->mName<<"': Vertices and normals sizes to not match!!!",SIMWORLD_GENERICERROR);

    } else {
        
        vertices->push_back( p1 ); 
        normals->push_back( pn1 ); 
        tempVert = normals->size()-1;
        tri.getPoints()[0] = tempVert;
        
        vertices->push_back( p2 ); 
        normals->push_back( pn2 ); 
        tempVert = normals->size()-1;
        tri.getPoints()[1] = tempVert;
        
        vertices->push_back( p3 ); 
        normals->push_back( pn3 ); 
        tempVert = normals->size()-1;
        tri.getPoints()[2] = tempVert;
        
        
        /* init flags from ntl_ray.h */
        int flag = 0; 
        if(getVisible()){ flag |= TRI_GEOMETRY; }
        if(getCastShadows() ) { 
            flag |= TRI_CASTSHADOWS; } 
        
        /* init geo init id */
        int geoiId = getGeoInitId(); 
        //if((geoiId > 0) && (mVolumeInit&VOLUMEINIT_VOLUME) && (!mIsAnimated)) { 
        if((geoiId > 0) && (mVolumeInit&VOLUMEINIT_VOLUME)) { 
            flag |= (1<< (geoiId+4)); 
            flag |= mGeoInitType; 
        } 
        /*errMsg("ntlScene::addTriangle","DEBUG flag="<<convertFlags2String(flag) ); */ 
        tri.setFlags( flag );
        
        /* triangle normal missing */
        tri.setNormal( trin );
        tri.setSmoothNormals( smooth );
        tri.setObjectId( this->mObjectId );
        triangles->push_back( tri ); 
    } /* normals check*/ 
}

void ntlGeometryObject::sceneAddTriangleNoVert(int *trips,
        ntlVec3Gfx trin, bool smooth,
        vector<ntlTriangle> *triangles) {
    ntlTriangle tri;
        
    tri.getPoints()[0] = trips[0];
    tri.getPoints()[1] = trips[1];
    tri.getPoints()[2] = trips[2];

    // same as normal sceneAddTriangle

    /* init flags from ntl_ray.h */
    int flag = 0; 
    if(getVisible()){ flag |= TRI_GEOMETRY; }
    if(getCastShadows() ) { 
        flag |= TRI_CASTSHADOWS; } 

    /* init geo init id */
    int geoiId = getGeoInitId(); 
    if((geoiId > 0) && (mVolumeInit&VOLUMEINIT_VOLUME)) { 
        flag |= (1<< (geoiId+4)); 
        flag |= mGeoInitType; 
    } 
    /*errMsg("ntlScene::addTriangle","DEBUG flag="<<convertFlags2String(flag) ); */ 
    tri.setFlags( flag );

    /* triangle normal missing */
    tri.setNormal( trin );
    tri.setSmoothNormals( smooth );
    tri.setObjectId( this->mObjectId );
    triangles->push_back( tri ); 
}


/******************************************************************************/
/* Init channels from float arrays (for elbeem API) */
/******************************************************************************/

#define ADD_CHANNEL_VEC(dst,nvals,val) \
        vals.clear(); time.clear(); elbeemSimplifyChannelVec3(val,&nvals); \
        for(int i=0; i<(nvals); i++) { \
            vals.push_back(ntlVec3Gfx((val)[i*4+0], (val)[i*4+1],(val)[i*4+2] )); \
            time.push_back( (val)[i*4+3] ); \
        } \
        (dst) = AnimChannel< ntlVec3Gfx >(vals,time); 

#define ADD_CHANNEL_FLOAT(dst,nvals,val) \
        valsfloat.clear(); time.clear(); elbeemSimplifyChannelFloat(val,&nvals); \
        for(int i=0; i<(nvals); i++) { \
            valsfloat.push_back( (val)[i*2+0] ); \
            time.push_back( (val)[i*2+1] ); \
        } \
        (dst) = AnimChannel< float >(valsfloat,time); 

void ntlGeometryObject::initChannels(
        int nTrans, float *trans, int nRot, float *rot, int nScale, float *scale,
        int nAct, float *act, int nIvel, float *ivel,
        int nAttrFStr, float *attrFStr,
        int nAttrFRad, float *attrFRad,
        int nVelFStr, float *velFStr,
        int nVelFRad, float *velFRad
        ) {
    const bool debugInitc=true;
    if(debugInitc) { debMsgStd("ntlGeometryObject::initChannels",DM_MSG,"nt:"<<nTrans<<" nr:"<<nRot<<" ns:"<<nScale, 10); 
                     debMsgStd("ntlGeometryObject::initChannels",DM_MSG,"na:"<<nAct<<" niv:"<<nIvel<<" ", 10); }
    vector<ntlVec3Gfx> vals;
    vector<float>  valsfloat;
    vector<double> time;
    if((trans)&&(nTrans>0)) {  ADD_CHANNEL_VEC(mcTrans, nTrans, trans); }
    if((rot)&&(nRot>0)) {      ADD_CHANNEL_VEC(mcRot, nRot, rot); }
    if((scale)&&(nScale>0)) {  ADD_CHANNEL_VEC(mcScale, nScale, scale); }
    if((act)&&(nAct>0)) {      ADD_CHANNEL_FLOAT(mcGeoActive, nAct, act); }
    if((ivel)&&(nIvel>0)) {    ADD_CHANNEL_VEC(mcInitialVelocity, nIvel, ivel); }
    
    /* fluid control channels */
    if((attrFStr)&&(nAttrFStr>0)) { ADD_CHANNEL_FLOAT(mcAttrFStr, nAttrFStr, attrFStr); }
    if((attrFRad)&&(nAttrFRad>0)) { ADD_CHANNEL_FLOAT(mcAttrFRad, nAttrFRad, attrFRad); }
    if((velFStr)&&(nVelFStr>0)) {   ADD_CHANNEL_FLOAT(mcVelFStr, nAct, velFStr); }
    if((velFRad)&&(nVelFRad>0)) {   ADD_CHANNEL_FLOAT(mcVelFRad, nVelFRad, velFRad); }

    checkIsAnimated();
    
    if(debugInitc) { 
        debMsgStd("ntlGeometryObject::initChannels",DM_MSG,getName()<<
                " nt:"<<mcTrans.accessValues().size()<<" nr:"<<mcRot.accessValues().size()<<
                " ns:"<<mcScale.accessValues().size()<<" isAnim:"<<mIsAnimated, 10); }

    if(debugInitc) {
        std::ostringstream ostr;
        ostr << "trans: ";
        for(size_t i=0; i<mcTrans.accessValues().size(); i++) {
            ostr<<" "<<mcTrans.accessValues()[i]<<"@"<<mcTrans.accessTimes()[i]<<" ";
        } ostr<<";   ";
        ostr<<"rot: ";
        for(size_t i=0; i<mcRot.accessValues().size(); i++) {
            ostr<<" "<<mcRot.accessValues()[i]<<"@"<<mcRot.accessTimes()[i]<<" ";
        } ostr<<";   ";
        ostr<<"scale: ";
        for(size_t i=0; i<mcScale.accessValues().size(); i++) {
            ostr<<" "<<mcScale.accessValues()[i]<<"@"<<mcScale.accessTimes()[i]<<" ";
        } ostr<<";   ";
        ostr<<"act: ";
        for(size_t i=0; i<mcGeoActive.accessValues().size(); i++) {
            ostr<<" "<<mcGeoActive.accessValues()[i]<<"@"<<mcGeoActive.accessTimes()[i]<<" ";
        } ostr<<";   ";
        ostr<<"ivel: ";
        for(size_t i=0; i<mcInitialVelocity.accessValues().size(); i++) {
            ostr<<" "<<mcInitialVelocity.accessValues()[i]<<"@"<<mcInitialVelocity.accessTimes()[i]<<" ";
        } ostr<<";   ";
        debMsgStd("ntlGeometryObject::initChannels",DM_MSG,"Inited "<<ostr.str(),10);
    }
}
#undef ADD_CHANNEL


/*****************************************************************************/
/* apply object translation at time t*/
/*****************************************************************************/
void ntlGeometryObject::applyTransformation(double t, vector<ntlVec3Gfx> *verts, vector<ntlVec3Gfx> *norms, int vstart, int vend, int forceTrafo) {
    if(    (mcTrans.accessValues().size()>1)  // VALIDATE
        || (mcRot.accessValues().size()>1) 
        || (mcScale.accessValues().size()>1) 
        || (forceTrafo)
        || (!mHaveCachedMov)
        ) {
        // transformation is animated, continue
        ntlVec3Gfx pos = getTranslation(t); 
        ntlVec3Gfx scale = mcScale.get(t);
        ntlVec3Gfx rot = mcRot.get(t);
        ntlMat4Gfx rotMat;
        rotMat.initRotationXYZ(rot[0],rot[1],rot[2]);
        pos += mInitialPos;
        errMsg("ntlGeometryObject::applyTransformation","obj="<<getName()<<" t"<<pos<<" r"<<rot<<" s"<<scale);
        for(int i=vstart; i<vend; i++) {
            (*verts)[i] *= scale;
            (*verts)[i] = rotMat * (*verts)[i];
            (*verts)[i] += pos;
            //if(i<10) errMsg("ntlGeometryObject::applyTransformation"," v"<<i<<"/"<<vend<<"="<<(*verts)[i]);
        }
        if(norms) {
            for(int i=vstart; i<vend; i++) {
                (*norms)[i] = rotMat * (*norms)[i];
            }
        }
    } else {
        // not animated, cached points were already returned
        errMsg ("ntlGeometryObject::applyTransformation","Object "<<getName()<<" used cached points ");
    }
}

void ntlGeometryObject::calcTriangleDivs(vector<ntlVec3Gfx> &verts, vector<ntlTriangle> &tris, gfxReal fsTri) {
    mTriangleDivs1.resize( tris.size() );
    mTriangleDivs2.resize( tris.size() );
    mTriangleDivs3.resize( tris.size() );

    //fsTri *= 2.; // DEBUG! , wrong init!

    for(size_t i=0; i<tris.size(); i++) {
        const ntlVec3Gfx p0 = verts[ tris[i].getPoints()[0] ];
        const ntlVec3Gfx p1 = verts[ tris[i].getPoints()[1] ];
        const ntlVec3Gfx p2 = verts[ tris[i].getPoints()[2] ];
        const ntlVec3Gfx side1 = p1 - p0;
        const ntlVec3Gfx side2 = p2 - p0;
        const ntlVec3Gfx side3 = p1 - p2;
        int divs1=0, divs2=0, divs3=0;
        if(normNoSqrt(side1) > fsTri*fsTri) { divs1 = (int)(norm(side1)/fsTri); }
        if(normNoSqrt(side2) > fsTri*fsTri) { divs2 = (int)(norm(side2)/fsTri); }

        mTriangleDivs1[i] = divs1;
        mTriangleDivs2[i] = divs2;
        mTriangleDivs3[i] = divs3;
    }
}

void ntlGeometryObject::initMovingPoints(double time, gfxReal featureSize) {
    if((mMovPntsInited==featureSize)&&(!getMeshAnimated())) return;
    const bool debugMoinit=false;

    vector<ntlTriangle> triangles; 
    vector<ntlVec3Gfx> vertices; 
    vector<ntlVec3Gfx> vnormals; 
    int objectId = 1;
    this->getTriangles(time, &triangles,&vertices,&vnormals,objectId);
    
    mMovPoints.clear();
    mMovNormals.clear();
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPoints","Object "<<getName()<<" has v:"<<vertices.size()<<" t:"<<triangles.size() );
    // no points?
    if(vertices.size()<1) {
        mMaxMovPnt=-1;
        return; 
    }
    ntlVec3f maxscale = channelFindMaxVf(mcScale);
    float maxpart = ABS(maxscale[0]);
    if(ABS(maxscale[1])>maxpart) maxpart = ABS(maxscale[1]);
    if(ABS(maxscale[2])>maxpart) maxpart = ABS(maxscale[2]);
    float scaleFac = 1.0/(maxpart);
    // TODO - better reinit from time to time?
    const gfxReal fsTri = featureSize*0.5 *scaleFac;
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPoints","maxscale:"<<maxpart<<" featureSize:"<<featureSize<<" fsTri:"<<fsTri );

    if(mTriangleDivs1.size()!=triangles.size()) {
        calcTriangleDivs(vertices,triangles,fsTri);
    }

    // debug: count points to init
    /*if(debugMoinit) {
        errMsg("ntlGeometryObject::initMovingPoints","Object "<<getName()<<" estimating...");
        int countp=vertices.size()*2;
        for(size_t i=0; i<triangles.size(); i++) {
            ntlVec3Gfx p0 = vertices[ triangles[i].getPoints()[0] ];
            ntlVec3Gfx side1 = vertices[ triangles[i].getPoints()[1] ] - p0;
            ntlVec3Gfx side2 = vertices[ triangles[i].getPoints()[2] ] - p0;
            int divs1=0, divs2=0;
            if(normNoSqrt(side1) > fsTri*fsTri) { divs1 = (int)(norm(side1)/fsTri); }
            if(normNoSqrt(side2) > fsTri*fsTri) { divs2 = (int)(norm(side2)/fsTri); }
            errMsg("ntlGeometryObject::initMovingPoints","tri:"<<i<<" p:"<<p0<<" s1:"<<side1<<" s2:"<<side2<<" -> "<<divs1<<","<<divs2 );
            if(divs1+divs2 > 0) {
                for(int u=0; u<=divs1; u++) {
                    for(int v=0; v<=divs2; v++) {
                        const gfxReal uf = (gfxReal)(u+TRI_UVOFFSET) / (gfxReal)(divs1+0.0);
                        const gfxReal vf = (gfxReal)(v+TRI_UVOFFSET) / (gfxReal)(divs2+0.0);
                        if(uf+vf>1.0) continue;
                        countp+=2;
                    }
                }
            }
        }
        errMsg("ntlGeometryObject::initMovingPoints","Object "<<getName()<<" requires:"<<countp*2);
    } // */

    bool discardInflowBack = false;
    if( (mGeoInitType==FGI_MBNDINFLOW) && (mcInitialVelocity.accessValues().size()<1) ) discardInflowBack = true;
    discardInflowBack = false; // DEBUG disable for now


    // init std points
    for(size_t i=0; i<vertices.size(); i++) {
        ntlVec3Gfx p = vertices[ i ];
        ntlVec3Gfx n = vnormals[ i ];
        // discard inflow backsides
        //if( (mGeoInitType==FGI_MBNDINFLOW) && (!mIsAnimated)) {
        if(discardInflowBack) { //if( (mGeoInitType==FGI_MBNDINFLOW) && (!mIsAnimated)) {
            if(dot(mInitialVelocity,n)<0.0) continue;
        }
        mMovPoints.push_back(p);
        mMovNormals.push_back(n);
        if(debugMoinit) errMsg("ntlGeometryObject::initMovingPoints","std"<<i<<" p"<<p<<" n"<<n<<" ");
    }
    // init points & refine...
    for(size_t i=0; i<triangles.size(); i++) {
        int *trips = triangles[i].getPoints();
        const ntlVec3Gfx p0 = vertices[ trips[0] ];
        const ntlVec3Gfx side1 = vertices[ trips[1] ] - p0;
        const ntlVec3Gfx side2 = vertices[ trips[2] ] - p0;
        int divs1=mTriangleDivs1[i], divs2=mTriangleDivs2[i];
        
        const ntlVec3Gfx trinormOrg = getNormalized(cross(side1,side2));
        const ntlVec3Gfx trinorm = trinormOrg*0.25*featureSize;
        if(discardInflowBack) { 
            if(dot(mInitialVelocity,trinorm)<0.0) continue;
        }
        if(debugMoinit) errMsg("ntlGeometryObject::initMovingPoints","Tri1 "<<vertices[trips[0]]<<","<<vertices[trips[1]]<<","<<vertices[trips[2]]<<" "<<divs1<<","<<divs2 );
        if(divs1+divs2 > 0) {
            for(int u=0; u<=divs1; u++) {
                for(int v=0; v<=divs2; v++) {
                    const gfxReal uf = (gfxReal)(u+TRI_UVOFFSET) / (gfxReal)(divs1+0.0);
                    const gfxReal vf = (gfxReal)(v+TRI_UVOFFSET) / (gfxReal)(divs2+0.0);
                    if(uf+vf>1.0) continue;
                    ntlVec3Gfx p = 
                        vertices[ trips[0] ] * (1.0-uf-vf)+
                        vertices[ trips[1] ] * uf +
                        vertices[ trips[2] ] * vf;
                    //ntlVec3Gfx n = vnormals[ 
                        //trips[0] ] * (1.0-uf-vf)+
                        //vnormals[ trips[1] ]*uf +
                        //vnormals[ trips[2] ]*vf;
                    //normalize(n);
                    // discard inflow backsides

                    mMovPoints.push_back(p + trinorm); // NEW!?
                    mMovPoints.push_back(p - trinorm);
                    mMovNormals.push_back(trinormOrg);
                    mMovNormals.push_back(trinormOrg); 
                    //errMsg("TRINORM","p"<<p<<" n"<<n<<" trin"<<trinorm);
                }
            }
        }
    }

    // find max point
    mMaxMovPnt = 0;
    gfxReal dist = normNoSqrt(mMovPoints[0]);
    for(size_t i=0; i<mMovPoints.size(); i++) {
        if(normNoSqrt(mMovPoints[i])>dist) {
            mMaxMovPnt = i;
            dist = normNoSqrt(mMovPoints[0]);
        }
    }

    if(    (this->getMeshAnimated())
      || (mcTrans.accessValues().size()>1)  // VALIDATE
        || (mcRot.accessValues().size()>1) 
        || (mcScale.accessValues().size()>1) 
        ) {
        // also do trafo...
    } else {
        mCachedMovPoints = mMovPoints;
        mCachedMovNormals = mMovNormals;
        //applyTransformation(time, &mCachedMovPoints, &mCachedMovNormals, 0, mCachedMovPoints.size(), true);
        applyTransformation(time, &mCachedMovPoints, NULL, 0, mCachedMovPoints.size(), true);
        mHaveCachedMov = true;
        debMsgStd("ntlGeometryObject::initMovingPoints",DM_MSG,"Object "<<getName()<<" cached points ", 7);
    }

    mMovPntsInited = featureSize;
    debMsgStd("ntlGeometryObject::initMovingPoints",DM_MSG,"Object "<<getName()<<" inited v:"<<vertices.size()<<"->"<<mMovPoints.size() , 5);
}
void ntlGeometryObject::initMovingPointsAnim(
         double srctime, vector<ntlVec3Gfx> &srcmovPoints,
         double dsttime, vector<ntlVec3Gfx> &dstmovPoints,
         vector<ntlVec3Gfx> *dstmovNormals,
         gfxReal featureSize,
         ntlVec3Gfx geostart, ntlVec3Gfx geoend
         ) {
    const bool debugMoinit=false;

    vector<ntlTriangle> srctriangles; 
    vector<ntlVec3Gfx> srcvertices; 
    vector<ntlVec3Gfx> unused_normals; 
    vector<ntlTriangle> dsttriangles; 
    vector<ntlVec3Gfx> dstvertices; 
    vector<ntlVec3Gfx> dstnormals; 
    int objectId = 1;
    // TODO optimize? , get rid of normals?
    unused_normals.clear();
    this->getTriangles(srctime, &srctriangles,&srcvertices,&unused_normals,objectId);
    unused_normals.clear();
    this->getTriangles(dsttime, &dsttriangles,&dstvertices,&dstnormals,objectId);
    
    srcmovPoints.clear();
    dstmovPoints.clear();
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPointsAnim","Object "<<getName()<<" has srcv:"<<srcvertices.size()<<" srct:"<<srctriangles.size() );
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPointsAnim","Object "<<getName()<<" has dstv:"<<dstvertices.size()<<" dstt:"<<dsttriangles.size() );
    // no points?
    if(srcvertices.size()<1) {
        mMaxMovPnt=-1;
        return; 
    }
    if((srctriangles.size() != dsttriangles.size()) ||
       (srcvertices.size() != dstvertices.size()) ) {
        errMsg("ntlGeometryObject::initMovingPointsAnim","Invalid triangle numbers! Aborting...");
        return;
    }
    ntlVec3f maxscale = channelFindMaxVf(mcScale);
    float maxpart = ABS(maxscale[0]);
    if(ABS(maxscale[1])>maxpart) maxpart = ABS(maxscale[1]);
    if(ABS(maxscale[2])>maxpart) maxpart = ABS(maxscale[2]);
    float scaleFac = 1.0/(maxpart);
    // TODO - better reinit from time to time?
    const gfxReal fsTri = featureSize*0.5 *scaleFac;
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPointsAnim","maxscale:"<<maxpart<<" featureSize:"<<featureSize<<" fsTri:"<<fsTri );

    if(mTriangleDivs1.size()!=srctriangles.size()) {
        calcTriangleDivs(srcvertices,srctriangles,fsTri);
    }


    // init std points
    for(size_t i=0; i<srcvertices.size(); i++) {
        srcmovPoints.push_back(srcvertices[i]);
        //srcmovNormals.push_back(srcnormals[i]);
    }
    for(size_t i=0; i<dstvertices.size(); i++) {
        dstmovPoints.push_back(dstvertices[i]);
        if(dstmovNormals) (*dstmovNormals).push_back(dstnormals[i]);
    }
    if(debugMoinit) errMsg("ntlGeometryObject::initMovingPointsAnim","stats src:"<<srcmovPoints.size()<<" dst:"<<dstmovPoints.size()<<" " );
    // init points & refine...
    for(size_t i=0; i<srctriangles.size(); i++) {
        const int divs1=mTriangleDivs1[i];
        const int   divs2=mTriangleDivs2[i];
        if(divs1+divs2 > 0) {
            int *srctrips = srctriangles[i].getPoints();
            int *dsttrips = dsttriangles[i].getPoints();
            const ntlVec3Gfx srcp0 =    srcvertices[ srctrips[0] ];
            const ntlVec3Gfx srcside1 = srcvertices[ srctrips[1] ] - srcp0;
            const ntlVec3Gfx srcside2 = srcvertices[ srctrips[2] ] - srcp0;
            const ntlVec3Gfx dstp0 =    dstvertices[ dsttrips[0] ];
            const ntlVec3Gfx dstside1 = dstvertices[ dsttrips[1] ] - dstp0;
            const ntlVec3Gfx dstside2 = dstvertices[ dsttrips[2] ] - dstp0;
            const ntlVec3Gfx src_trinorm    = getNormalized(cross(srcside1,srcside2))*0.25*featureSize;
            const ntlVec3Gfx dst_trinormOrg = getNormalized(cross(dstside1,dstside2));
            const ntlVec3Gfx dst_trinorm    = dst_trinormOrg                         *0.25*featureSize;
            //errMsg("ntlGeometryObject::initMovingPointsAnim","Tri1 "<<srcvertices[srctrips[0]]<<","<<srcvertices[srctrips[1]]<<","<<srcvertices[srctrips[2]]<<" "<<divs1<<","<<divs2 );
            for(int u=0; u<=divs1; u++) {
                for(int v=0; v<=divs2; v++) {
                    const gfxReal uf = (gfxReal)(u+TRI_UVOFFSET) / (gfxReal)(divs1+0.0);
                    const gfxReal vf = (gfxReal)(v+TRI_UVOFFSET) / (gfxReal)(divs2+0.0);
                    if(uf+vf>1.0) continue;
                    ntlVec3Gfx srcp = 
                        srcvertices[ srctrips[0] ] * (1.0-uf-vf)+
                        srcvertices[ srctrips[1] ] * uf +
                        srcvertices[ srctrips[2] ] * vf;
                    ntlVec3Gfx dstp = 
                        dstvertices[ dsttrips[0] ] * (1.0-uf-vf)+
                        dstvertices[ dsttrips[1] ] * uf +
                        dstvertices[ dsttrips[2] ] * vf;

                    // cutoffDomain
                    if((srcp[0]<geostart[0]) && (dstp[0]<geostart[0])) continue;
                    if((srcp[1]<geostart[1]) && (dstp[1]<geostart[1])) continue;
                    if((srcp[2]<geostart[2]) && (dstp[2]<geostart[2])) continue;
                    if((srcp[0]>geoend[0]  ) && (dstp[0]>geoend[0]  )) continue;
                    if((srcp[1]>geoend[1]  ) && (dstp[1]>geoend[1]  )) continue;
                    if((srcp[2]>geoend[2]  ) && (dstp[2]>geoend[2]  )) continue;
                    
                    srcmovPoints.push_back(srcp+src_trinorm); // SURFENHTEST
                    srcmovPoints.push_back(srcp-src_trinorm);

                    dstmovPoints.push_back(dstp+dst_trinorm); // SURFENHTEST
                    dstmovPoints.push_back(dstp-dst_trinorm);
                    if(dstmovNormals) {
                        (*dstmovNormals).push_back(dst_trinormOrg);
                        (*dstmovNormals).push_back(dst_trinormOrg); }
                }
            }
        }
    }

    // find max point not necessary
    debMsgStd("ntlGeometryObject::initMovingPointsAnim",DM_MSG,"Object "<<getName()<<" inited v:"<<srcvertices.size()<<"->"<<srcmovPoints.size()<<","<<dstmovPoints.size() , 5);
}

void ntlGeometryObject::getMovingPoints(vector<ntlVec3Gfx> &ret, vector<ntlVec3Gfx> *norms) {
    if(mHaveCachedMov) {
        ret = mCachedMovPoints;
        if(norms) { 
            *norms = mCachedMovNormals; 
            //errMsg("ntlGeometryObject","getMovingPoints - Normals currently unused!");
        }
        //errMsg ("ntlGeometryObject::getMovingPoints","Object "<<getName()<<" used cached points "); // DEBUG
        return;
    }

    ret = mMovPoints;
    if(norms) { 
        //errMsg("ntlGeometryObject","getMovingPoints - Normals currently unused!");
        *norms = mMovNormals; 
    }
}


ntlVec3Gfx ntlGeometryObject::calculateMaxVel(double t1, double t2) {
    ntlVec3Gfx vel(0.);
    if(mMaxMovPnt<0) return vel;
        
    vector<ntlVec3Gfx> verts1,verts2;
    verts1.push_back(mMovPoints[mMaxMovPnt]);
    verts2 = verts1;
    applyTransformation(t1,&verts1,NULL, 0,verts1.size(), true);
    applyTransformation(t2,&verts2,NULL, 0,verts2.size(), true);

    vel = (verts2[0]-verts1[0]); // /(t2-t1);
    //errMsg("ntlGeometryObject::calculateMaxVel","t1="<<t1<<" t2="<<t2<<" p1="<<verts1[0]<<" p2="<<verts2[0]<<" v="<<vel);
    return vel;
}

ntlVec3Gfx ntlGeometryObject::getTranslation(double t) {
    ntlVec3Gfx pos = mcTrans.get(t);
  // DEBUG CP_FORCECIRCLEINIT 1
    /*if( 
            (mName.compare(string("0__ts1"))==0) ||
            (mName.compare(string("1__ts1"))==0) ||
            (mName.compare(string("2__ts1"))==0) ||
            (mName.compare(string("3__ts1"))==0) ||
            (mName.compare(string("4__ts1"))==0) ||
            (mName.compare(string("5__ts1"))==0) ||
            (mName.compare(string("6__ts1"))==0) ||
            (mName.compare(string("7__ts1"))==0) ||
            (mName.compare(string("8__ts1"))==0) ||
            (mName.compare(string("9__ts1"))==0) 
            ) { int j=mName[0]-'0';
            ntlVec3Gfx ppos(0.); { // DEBUG
            const float tscale=10.;
            const float tprevo = 0.33;
            const ntlVec3Gfx   toff(50,50,0);
            const ntlVec3Gfx oscale(30,30,0);
            ppos[0] =  cos(tscale* t - tprevo*(float)j + M_PI -0.1) * oscale[0] + toff[0];
            ppos[1] = -sin(tscale* t - tprevo*(float)j + M_PI -0.1) * oscale[1] + toff[1];
            ppos[2] =                               toff[2]; } // DEBUG
            pos = ppos;
            pos[2] = 0.15;
    }
  // DEBUG CP_FORCECIRCLEINIT 1 */
    return pos;
}
float ntlGeometryObject::getGeoActive(double t) {
    float act = mcGeoActive.get(t); // if <= 0.0 -> off
    return act;
}

void ntlGeometryObject::setInitialVelocity(ntlVec3Gfx set) { 
    mInitialVelocity=set; 
    mcInitialVelocity = AnimChannel<ntlVec3Gfx>(set); 
}
ntlVec3Gfx ntlGeometryObject::getInitialVelocity(double t) { 
    ntlVec3Gfx v =  mcInitialVelocity.get(t); //return mInitialVelocity; 
    if(!mLocalCoordInivel) return v;

    ntlVec3Gfx rot = mcRot.get(t);
    ntlMat4Gfx rotMat;
    rotMat.initRotationXYZ(rot[0],rot[1],rot[2]);
    v = rotMat * v;
    return v;
}