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/**
* @file llsky.h
* @brief It's, uh, the sky!
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLSKY_H
#define LL_LLSKY_H
#include "llmath.h"
//#include "vmath.h"
#include "v3math.h"
#include "v4math.h"
#include "v4color.h"
#include "v4coloru.h"
#include "llvosky.h"
#include "llvoground.h"
class LLViewerCamera;
class LLVOWLSky;
class LLVOWLClouds;
class LLSky
{
public:
LLSky();
~LLSky();
void init(const LLVector3 &sun_direction);
void cleanup();
void setSunDirection(const LLVector3 &sun_direction, const LLVector3 &moon_direction);
LLColor4 getSkyFogColor() const;
void setCloudDensityAtAgent(F32 cloud_density);
void setWind(const LLVector3& wind);
void updateFog(const F32 distance);
void updateCull();
void updateSky();
void propagateHeavenlyBodies(F32 dt); // dt = seconds
S32 mLightingGeneration;
BOOL mUpdatedThisFrame;
void setFogRatio(const F32 fog_ratio); // Fog distance as fraction of cull distance.
F32 getFogRatio() const;
LLColor4U getFadeColor() const;
LLVector3 getSunDirection() const;
LLVector3 getMoonDirection() const;
LLColor4 getSunDiffuseColor() const;
LLColor4 getMoonDiffuseColor() const;
LLColor4 getSunAmbientColor() const;
LLColor4 getMoonAmbientColor() const;
LLColor4 getTotalAmbientColor() const;
BOOL sunUp() const;
F32 getSunPhase() const;
void setSunPhase(const F32 phase);
void destroyGL();
void restoreGL();
void resetVertexBuffers();
public:
LLPointer<LLVOSky> mVOSkyp; // Pointer to the LLVOSky object (only one, ever!)
LLPointer<LLVOGround> mVOGroundp;
LLPointer<LLVOWLSky> mVOWLSkyp;
// Legacy stuff
LLVector3 mSunDefaultPosition;
protected:
F32 mSunPhase;
LLColor4 mFogColor; // Color to use for fog and haze
};
extern LLSky gSky;
#endif
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