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/*==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
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef hsSfxAngleFade_inc
#define hsSfxAngleFade_inc
#include "hsBiExpander.h"
#include "hsGRenderProcs.h"
#include "hsBitVector.h"
class hsSfxAngleFade : public hsGRenderProcs {
public:
enum {
kDirectional = 0x10000,
kTargetRelative = 0x20000,
kTwoSided = 0x40000,
kFaceNormals = 0x80000
};
struct hsSfxAfTableEntry {
hsScalar fCosineDel;
hsScalar fCosineNorm;
hsScalar fOpacity;
};
protected:
hsBitVector fSetVector;
hsExpander<hsSfxAfTableEntry> fTable;
hsScalar IOpacFromDot(hsScalar dot);
public:
hsSfxAngleFade();
virtual ~hsSfxAngleFade();
virtual void ProcessPreInterpShadeVerts(hsExpander<hsGShadeVertex*>& vList);
virtual void ProcessPreInterpTris(hsExpander<hsTriangle3*>& tList, hsExpander<hsGTriVertex*>& vList);
void MakeTable(float* cosList, float* opacList, int num); // lists sorted from lowest cosine to highest
virtual void Read(hsStream* s);
virtual void Write(hsStream* s);
virtual const char* GetLabel() const { return "hsSfxAngleFade"; }
virtual ProcType GetType() const { return kTypeAngleFade; }
CLASSNAME_REGISTER( hsSfxAngleFade );
GETINTERFACE_ANY( hsSfxAngleFade, hsGRenderProcs );
};
#endif // hsSfxAngleFade_inc