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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#ifndef plAccMeshSmooth_inc
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#define plAccMeshSmooth_inc
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#include "hsTemplates.h"
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#include "plAccessGeometry.h"
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#include "plAccessSpan.h"
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struct hsPoint3;
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struct hsVector3;
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class plGeometrySpan;
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class plAccMeshSmooth
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{
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public:
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enum {
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kNone = 0x0,
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kSmoothNorm = 0x1,
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kSmoothPos = 0x2,
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kSmoothDiffuse = 0x4
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};
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protected:
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struct VtxAccum
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{
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hsPoint3 fPos;
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hsVector3 fNorm;
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hsColorRGBA fDiffuse;
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};
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UInt32 fFlags;
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hsScalar fMinNormDot;
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hsScalar fDistTolSq;
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plAccessGeometry fAccGeom;
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hsTArray<plAccessSpan> fSpans;
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hsPoint3 IPositionToWorld(plAccessSpan& span, int i) const;
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hsVector3 INormalToWorld(plAccessSpan& span, int i) const;
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hsPoint3 IPositionToLocal(plAccessSpan& span, const hsPoint3& wPos) const;
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hsVector3 INormalToLocal(plAccessSpan& span, const hsVector3& wNorm) const;
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void FindEdges(UInt32 maxVtxIdx, UInt32 nTris, UInt16* idxList, hsTArray<UInt16>& edgeVerts);
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void FindEdges(hsTArray<plGeometrySpan*>& sets, hsTArray<UInt16>* edgeVerts);
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void FindSharedVerts(plAccessSpan& span, int numEdgeVerts, hsTArray<UInt16>& edgeVerts, hsTArray<UInt16>& shareVtx, VtxAccum& accum);
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void SetNormals(plAccessSpan& span, hsTArray<UInt16>& shareVtx, const hsVector3& norm) const;
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void SetPositions(plAccessSpan& span, hsTArray<UInt16>& shareVtx, const hsPoint3& pos) const;
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void SetDiffuse(plAccessSpan& span, hsTArray<UInt16>& shareVtx, const hsColorRGBA& diff) const;
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public:
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plAccMeshSmooth() : fFlags(kSmoothNorm), fMinNormDot(0.25f), fDistTolSq(1.e-4f), fAccGeom() {}
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void SetAngle(hsScalar degs);
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hsScalar GetAngle() const; // returns degrees
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void SetDistTol(hsScalar dist);
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hsScalar GetDistTol() const;
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void Smooth(hsTArray<plGeometrySpan*>& sets);
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void SetFlags(UInt32 f) { fFlags = f; }
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UInt32 GetFlags() const { return fFlags; }
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};
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#endif // plAccMeshSmooth_inc
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