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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 plShadowSlave_inc
#define plShadowSlave_inc
#include "hsMatrix44.h"
#include "hsBounds.h"
#include "plViewTransform.h"
#include "hsGeometry3.h"
class plShadowCaster;
class plVolumeIsect;
class plPipeline;
class plShadowSlave
{
public:
UInt32 fIndex;
hsMatrix44 fWorldToLight;
hsMatrix44 fLightToWorld;
hsPoint3 fLightPos;
hsVector3 fLightDir;
hsMatrix44 fWorldToTexture;
hsMatrix44 fCastLUT;
hsMatrix44 fRcvLUT;
plViewTransform fView;
hsScalar fPower;
hsScalar fBlurScale;
hsBounds3Ext fCasterWorldBounds;
hsBounds3Ext fWorldBounds;
plVolumeIsect* fIsect;
UInt32 fWidth;
UInt32 fHeight;
hsScalar fAttenDist;
hsScalar fPriority;
UInt32 fFlags;
enum SlaveFlag
{
kObeysLightGroups = 0x1,
kIncludesChars = 0x2,
kSelfShadow = 0x4,
kCastInCameraSpace = 0x8,
kReverseZ = 0x10,
kTwoSided = 0x20,
kReverseCull = 0x40,
kPositional = 0x80
};
void SetFlag(SlaveFlag f, hsBool on) { if(on) fFlags |= f; else fFlags &= ~f; }
hsBool HasFlag(SlaveFlag f) const { return 0 != (fFlags & f); }
hsBool ObeysLightGroups() const { return HasFlag(kObeysLightGroups); }
hsBool IncludesChars() const { return HasFlag(kIncludesChars); }
hsBool SelfShadow() const { return HasFlag(kSelfShadow); }
hsBool CastInCameraSpace() const { return HasFlag(kCastInCameraSpace); }
hsBool ReverseZ() const { return HasFlag(kReverseZ); }
hsBool TwoSided() const { return HasFlag(kTwoSided); }
hsBool ReverseCull() const { return HasFlag(kReverseCull); }
hsBool Positional() const { return HasFlag(kPositional); }
virtual void Init() { fFlags = 0; }
const plShadowCaster* fCaster;
// Internal to pipeline, no touch!!!
int fLightIndex;
int fLightRefIdx;
int fSelfShadowOn;
void* fPipeData;
bool ISetupOrthoViewTransform();
bool ISetupPerspViewTransform();
virtual bool SetupViewTransform(plPipeline* pipe) = 0;
};
class plDirectShadowSlave : public plShadowSlave
{
virtual bool SetupViewTransform(plPipeline* pipe) { return ISetupOrthoViewTransform(); }
};
class plPointShadowSlave : public plShadowSlave
{
virtual bool SetupViewTransform(plPipeline* pipe) { return ISetupPerspViewTransform(); }
};
#endif // plShadowSlave_inc