#include <track_tcb.h>
Inheritance diagram for CTrackKeyFramerTCB< CKeyT, T >:
Nevrax France
Definition at line 202 of file track_tcb.h.
Public Member Functions | |
| virtual const IAnimatedValue & | getValue () const |
| From ITrack. | |
Protected Types | |
| typedef CKeyT::TValueType | TKeyValueType |
Protected Member Functions | |
From ITrackKeyFramer | |
| virtual void | compile () |
| compile (precalc). | |
| virtual void | evalKey (const CKeyT *previous, const CKeyT *next, TAnimationTime datePrevious, TAnimationTime dateNext, TAnimationTime date) |
| evalKey (runtime). | |
Private Types | |
| typedef TMapTimeCKey::iterator | TMapTimeCKeyIterator |
Private Member Functions | |
| void | compileTCBEase (TMapTimeCKey &mapKey, bool loopMode) |
| compute TCB ease information. | |
| void | computeFirstKey (CKeyT &keyFirst, CKeyT &keyAfter) |
| void | computeHermiteBasis (float d, float hb[4]) |
| void | computeLastKey (CKeyT &keyLast, CKeyT &keyBefore) |
| void | computeTCBFactors (const CKeyT &key, float timeBefore, float time, float timeAfter, float rangeDelta, bool firstKey, bool endKey, bool isLoop, float &ksm, float &ksp, float &kdm, float &kdp) |
| void | computeTCBKey (CKeyT &keyBefore, CKeyT &key, CKeyT &keyAfter, float timeBefore, float time, float timeAfter, float rangeDelta, bool firstKey, bool endKey, bool isLoop) |
| void | computeTCBKeyLinear (CKeyT &key0, CKeyT &key1) |
| float | ease (const CKeyT *key, float d) |
Private Attributes | |
| CAnimatedValueBlendable< T > | _Value |
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Definition at line 215 of file track_tcb.h. |
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Definition at line 51 of file track_tcb.h. |
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compile (precalc).
Definition at line 253 of file track_tcb.h. References CTCBTools< CKeyT, T, TMapTimeCKey >::compileTCBEase(), CTrackKeyFramerTCB< CKeyT, T >::computeFirstKey(), CTrackKeyFramerTCB< CKeyT, T >::computeLastKey(), CTrackKeyFramerTCB< CKeyT, T >::computeTCBKey(), CTrackKeyFramerTCB< CKeyT, T >::computeTCBKeyLinear(), and sint.
00254 {
00255 ITrackKeyFramer<CKeyT>::compile();
00256
00257 // Ease Precompute.
00258 compileTCBEase(_MapKey, getLoopMode());
00259
00260
00261 // Tangents Precompute.
00262 sint nKeys= _MapKey.size();
00263 if(nKeys<=1)
00264 return;
00265
00266 typename std::map<TAnimationTime, CKeyT>::iterator it= _MapKey.begin(); // first key.
00267 typename std::map<TAnimationTime, CKeyT>::iterator itNext= it; itNext++; // second key.
00268 typename std::map<TAnimationTime, CKeyT>::iterator itPrev= _MapKey.end(); itPrev--; // last key.
00269
00270 if(nKeys==2 && !getLoopMode())
00271 {
00272 computeTCBKeyLinear( it->second, itNext->second );
00273 }
00274 else
00275 {
00276 // rangeDelta is the length of effective Range - length of LastKey-FirstKey.
00277 // NB: if RangeLock, rangeDelta==0.
00278 float rangeDelta;
00279 // NB: _RangeDelta has just been compiled in ITrackKeyFramer<CKeyT>::compile().
00280 rangeDelta= getCompiledRangeDelta();
00281
00282 // Compute all middle keys.
00283 for(;it!=_MapKey.end();)
00284 {
00285 // Do the first key and the last key only in LoopMode.
00286 // NB: we are the last if itNext==_MapKey.begin().
00287 if(getLoopMode() || (it!=_MapKey.begin() && itNext!=_MapKey.begin()) )
00288 {
00289 computeTCBKey(itPrev->second, it->second, itNext->second,
00290 itPrev->first, it->first, itNext->first, rangeDelta,
00291 it==_MapKey.begin(), itNext==_MapKey.begin(), getLoopMode());
00292 }
00293
00294 // Next key!!
00295 itPrev= it;
00296 it++;
00297 itNext++;
00298 // loop.
00299 if(itNext==_MapKey.end())
00300 itNext= _MapKey.begin();
00301 }
00302
00303 // In not loop mode, compute first and last key, AFTER middle keys computed.
00304 if(!getLoopMode())
00305 {
00306 typename std::map<TAnimationTime, CKeyT>::iterator it0= _MapKey.begin(); // first key.
00307 typename std::map<TAnimationTime, CKeyT>::iterator it1= it0; it1++; // second key.
00308 typename std::map<TAnimationTime, CKeyT>::iterator itLast= _MapKey.end();itLast--; // last key.
00309 typename std::map<TAnimationTime, CKeyT>::iterator itLastPrev= itLast;itLastPrev--; // prev of last key.
00310
00311 computeFirstKey(it0->second, it1->second);
00312 computeLastKey(itLast->second, itLastPrev->second);
00313 }
00314 }
00315 }
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compute TCB ease information.
Definition at line 56 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >::compile(), and CTrackKeyFramerTCB< CKeyT, T >::compile().
00057 {
00058 TMapTimeCKeyIterator it= mapKey.begin();
00059 for(;it!=mapKey.end();it++)
00060 {
00061 TMapTimeCKeyIterator next= it;
00062 next++;
00063
00064 // loop mgt. must compute ease from last to first (usefull if _RangeLock is false).
00065 if(next==mapKey.end() && loopMode && mapKey.size()>1)
00066 next= mapKey.begin();
00067
00068 // Ease Precompute.
00069 //=================
00070 CKeyT &key= it->second;
00071 if(next!=mapKey.end())
00072 {
00073 float e0= it->second.EaseFrom;
00074 float e1= next->second.EaseTo;
00075 float s = e0 + e1;
00076
00077 // "normalize".
00078 if (s > 1.0f)
00079 {
00080 e0 = e0/s;
00081 e1 = e1/s;
00082 }
00083
00084 // precalc ease factors.
00085 key.Ease0= e0;
00086 key.Ease1= e1;
00087 key.EaseK= 1/(2.0f - e0 - e1);
00088 if(e0)
00089 key.EaseKOverEase0= key.EaseK / e0;
00090 if(e1)
00091 key.EaseKOverEase1= key.EaseK / e1;
00092 }
00093 else
00094 {
00095 // force ease() to just return d (see ease()).
00096 key.EaseK = 0.5f;
00097 }
00098
00099 }
00100 }
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Definition at line 359 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyT, T >::compile().
00360 {
00361 float tm;
00362 tm = 0.5f * (1.0f - keyFirst.Tension);
00363 keyFirst.TanFrom= tm * ((keyAfter.Value - keyFirst.Value) * 3.0f - keyAfter.TanTo);
00364 }
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Definition at line 121 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyT, T >::evalKey().
00122 {
00123 float d2,d3,a;
00124
00125 d2 = d*d;
00126 d3 = d2*d;
00127 a = 3.0f*d2 - 2.0f*d3;
00128 hb[0] = 1.0f - a;
00129 hb[1] = a;
00130 hb[2] = d3 - 2.0f*d2 + d;
00131 hb[3] = d3 - d2;
00132 }
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Definition at line 367 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyT, T >::compile().
00368 {
00369 float tm;
00370 tm = 0.5f * (1.0f - keyLast.Tension);
00371 keyLast.TanTo= tm * ((keyLast.Value - keyBefore.Value) * 3.0f - keyBefore.TanFrom);
00372 }
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Definition at line 136 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >::computeTCBKey(), and CTrackKeyFramerTCB< CKeyT, T >::computeTCBKey().
00138 {
00139 float fp,fn;
00140
00141 if(isLoop || (!firstKey && !endKey))
00142 {
00143 float dtm;
00144 // Compute Time deltas.
00145 if (firstKey)
00146 {
00147 dtm = 0.5f * (rangeDelta + timeAfter - time);
00148 fp = rangeDelta / dtm;
00149 fn = (timeAfter - time) / dtm;
00150 }
00151 else if (endKey)
00152 {
00153 dtm = 0.5f * (rangeDelta + time - timeBefore);
00154 fp = rangeDelta / dtm;
00155 fn = (time - timeBefore) / dtm;
00156 }
00157 else
00158 {
00159 dtm = 0.5f * (timeAfter - timeBefore);
00160 fp = (time - timeBefore) / dtm;
00161 fn = (timeAfter - time) / dtm;
00162 }
00163 float c= (float)fabs( key.Continuity );
00164 fp = fp + c - c * fp;
00165 fn = fn + c - c * fn;
00166 }
00167 else
00168 {
00169 // firstkey and lastkey of not loop track.
00170 fp = 1.0f;
00171 fn = 1.0f;
00172 }
00173
00174 // Compute tangents factors.
00175 float tm,cm,cp,bm,bp,tmcm,tmcp;
00176
00177 cm = 1.0f - key.Continuity;
00178 tm = 0.5f * ( 1.0f - key.Tension );
00179 cp = 2.0f - cm;
00180 bm = 1.0f - key.Bias;
00181 bp = 2.0f - bm;
00182 tmcm = tm*cm; tmcp = tm*cp;
00183
00184 // tgts factors.
00185 ksm = tmcm*bp*fp; ksp = tmcp*bm*fp;
00186 kdm = tmcp*bp*fn; kdp = tmcm*bm*fn;
00187
00188 }
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Definition at line 326 of file track_tcb.h. References CTCBTools< CKeyT, T, TMapTimeCKey >::computeTCBFactors(). Referenced by CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >::compile(), and CTrackKeyFramerTCB< CKeyT, T >::compile().
00328 {
00329 float ksm,ksp,kdm,kdp;
00330
00331 // compute tangents factors.
00332 computeTCBFactors(key, timeBefore, time, timeAfter, rangeDelta, firstKey, endKey, isLoop, ksm,ksp,kdm,kdp);
00333
00334 // Delta.
00335 TKeyValueType delm, delp;
00336 delm = key.Value - keyBefore.Value;
00337 delp = keyAfter.Value - key.Value;
00338
00339 // Tangents.
00340 key.TanTo = delm*ksm + delp*ksp;
00341 key.TanFrom= delm*kdm + delp*kdp;
00342
00343 }
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Definition at line 346 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyT, T >::compile().
00347 {
00348 float f0, f1;
00349 TKeyValueType dv;
00350
00351 f0 = 1.0f - key0.Tension;
00352 f1 = 1.0f - key1.Tension;
00353 dv = key1.Value - key0.Value;
00354 key0.TanFrom= dv * f0;
00355 key1.TanTo= dv * f1;
00356 }
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Definition at line 103 of file track_tcb.h. Referenced by CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >::evalKey(), and CTrackKeyFramerTCB< CKeyT, T >::evalKey().
00104 {
00105 if (d==0.0f || d==1.0f) return d;
00106 // k==0.5f <=> e0+e1 == 0.
00107 if (key->EaseK == 0.5f) return d;
00108
00109 if (d < key->Ease0)
00110 return key->EaseKOverEase0 * d*d;
00111 else if (d < 1.0f - key->Ease1)
00112 return key->EaseK * (2.0f*d - key->Ease0);
00113 else
00114 {
00115 d = 1.0f - d;
00116 return 1.0f - key->EaseKOverEase1 * d*d;
00117 }
00118 }
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evalKey (runtime).
Definition at line 223 of file track_tcb.h. References NLMISC::clamp(), CTCBTools< CKeyT, T, TMapTimeCKey >::computeHermiteBasis(), and CTCBTools< CKeyT, T, TMapTimeCKey >::ease().
00226 {
00227 if(previous && next)
00228 {
00229 // lerp from previous to cur.
00230 date-= datePrevious;
00231 date*= previous->OODeltaTime;
00232 NLMISC::clamp(date, 0,1);
00233
00234 date = ease(previous, date);
00235
00236 float hb[4];
00237 computeHermiteBasis(date, hb);
00238 copyToValue(_Value.Value,
00239 previous->Value*hb[0] + next->Value*hb[1] +
00240 previous->TanFrom*hb[2] + next->TanTo*hb[3]);
00241 }
00242 else
00243 {
00244 if (previous)
00245 copyToValue(_Value.Value, previous->Value);
00246 else
00247 if (next)
00248 copyToValue(_Value.Value, next->Value);
00249 }
00250 }
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From ITrack.
Definition at line 207 of file track_tcb.h.
00208 {
00209 return _Value;
00210 }
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Definition at line 322 of file track_tcb.h. |
1.3.6