1 files changed, 120 insertions, 0 deletions

diff --git a/linden/indra/newview/llsky.h b/linden/indra/newview/llsky.h
new file mode 100644
index 0000000..7e39311
--- /dev/null
+++ b/linden/indra/newview/llsky.h
@@ -0,0 +1,120 @@
+/** 
+ * @file llsky.h
+ * @brief It's, uh, the sky!
+ *
+ * Copyright (c) 2001-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#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 "llvostars.h"
+#include "llvoground.h"
+
+const F32 NIGHTTIME_ELEVATION                   = -8.0f;        // degrees
+const F32 NIGHTTIME_ELEVATION_COS               = (F32)sin(NIGHTTIME_ELEVATION*DEG_TO_RAD);
+
+class LLViewerCamera;
+
+
+class LLSky  
+{
+public:
+        LLSky();
+        ~LLSky();
+
+        void init(const LLVector3 &sun_direction);
+        void free();
+
+        void cleanup();
+
+        void setOverrideSun(BOOL override);
+        BOOL getOverrideSun() { return mOverrideSimSunPosition; }
+        void setSunDirection(const LLVector3 &sun_direction, const LLVector3 &sun_ang_velocity);
+        void setSunTargetDirection(const LLVector3 &sun_direction, const LLVector3 &sun_ang_velocity);
+
+
+        LLColor4 getFogColor() 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 getTotalAmbientColor() const;
+        BOOL sunUp() const;
+        LLColor4 calcInScatter(LLColor4& transp, const LLVector3 &point, F32 exag) const;
+
+        F32 getSunPhase() const;
+        void setSunPhase(const F32 phase);
+
+        void destroyGL();
+        void restoreGL();
+
+public:
+        LLPointer<LLVOSky>              mVOSkyp;        // Pointer to the LLVOSky object (only one, ever!)
+        LLPointer<LLVOStars>    mVOStarsp;      // Pointer to the LLVOStars object (only one, ever!)
+        LLPointer<LLVOGround>   mVOGroundp;
+
+        LLVector3 mSunTargDir;
+
+        // Legacy stuff
+        LLVector3 mSunDefaultPosition;
+
+protected:
+        BOOL                    mOverrideSimSunPosition;
+
+        F32                             mSunPhase;
+        LLColor4                mFogColor;                              // Color to use for fog and haze
+
+        F32                             mHaze;                                  // a multiplier to scale the lighting
+        F32                             mDomeRadius;                    // sky dome size
+
+        LLVector3               mLastSunDirection;
+};
+
+extern LLSky    gSky;
+#endif