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/**
* @file llvotree.h
* @brief LLVOTree class header file
*
* Copyright (c) 2002-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* 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_LLVOTREE_H
#define LL_LLVOTREE_H
#include "llviewerobject.h"
#include "lldarray.h"
#include "xform.h"
class LLFace;
class LLDrawPool;
class LLVOTree : public LLViewerObject
{
public:
enum
{
VERTEX_DATA_MASK = (1 << LLVertexBuffer::TYPE_VERTEX) |
(1 << LLVertexBuffer::TYPE_NORMAL) |
(1 << LLVertexBuffer::TYPE_TEXCOORD)
}
eVertexDataMask;
LLVOTree(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
virtual ~LLVOTree();
// Initialize data that's only inited once per class.
static void initClass();
static void cleanupClass();
/*virtual*/ U32 processUpdateMessage(LLMessageSystem *mesgsys,
void **user_data,
U32 block_num, const EObjectUpdateType update_type,
LLDataPacker *dp);
/*virtual*/ BOOL idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);
// Graphical stuff for objects - maybe broken out into render class later?
/*virtual*/ void render(LLAgent &agent);
/*virtual*/ void setPixelAreaAndAngle(LLAgent &agent);
/*virtual*/ void updateTextures(LLAgent &agent);
/*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);
/*virtual*/ BOOL updateGeometry(LLDrawable *drawable);
/*virtual*/ void updateSpatialExtents(LLVector3 &min, LLVector3 &max);
virtual U32 getPartitionType() const;
void updateRadius();
U32 drawBranchPipeline(U32* indicesp, S32 trunk_LOD, S32 stop_level, U16 depth, U16 trunk_depth, F32 scale, F32 twist, F32 droop, F32 branches, F32 alpha);
void drawBranch(S32 stop_level, U16 depth, U16 trunk_depth, F32 scale, F32 twist, F32 droop, F32 branches, F32 alpha, BOOL draw_leaves);
static S32 sMaxTreeSpecies;
struct TreeSpeciesData
{
LLUUID mTextureID;
F32 mBranchLength; // Scale (length) of tree branches
F32 mDroop; // Droop from vertical (degrees) at each branch recursion
F32 mTwist; // Twist
F32 mBranches; // Number of branches emitted at each recursion level
U8 mDepth; // Number of recursions to tips of branches
F32 mScaleStep; // Multiplier for scale at each recursion level
U8 mTrunkDepth;
F32 mLeafScale; // Scales leaf texture when rendering
F32 mTrunkLength; // Scales branch diameters when rendering
F32 mBillboardScale; // Scales the billboard representation
F32 mBillboardRatio; // Height to width aspect ratio
F32 mTrunkAspect;
F32 mBranchAspect;
F32 mRandomLeafRotate;
F32 mNoiseScale; // Scaling of noise function in perlin space (norm = 1.0)
F32 mNoiseMag; // amount of perlin noise to deform by (0 = none)
F32 mTaper; // amount of perlin noise to deform by (0 = none)
F32 mRepeatTrunkZ; // Times to repeat the trunk texture vertically along trunk
};
static F32 sTreeFactor; // Tree level of detail factor
friend class LLDrawPoolTree;
protected:
LLVector3 mTrunkBend; // Accumulated wind (used for blowing trees)
LLVector3 mTrunkVel; //
LLVector3 mWind;
LLPointer<LLViewerImage> mTreeImagep; // Pointer to proper tree image
U8 mSpecies; // Species of tree
F32 mBranchLength; // Scale (length) of tree branches
F32 mTrunkLength; // Trunk length (first recursion)
F32 mDroop; // Droop from vertical (degrees) at each branch recursion
F32 mTwist; // Twist
F32 mBranches; // Number of branches emitted at each recursion level
U8 mDepth; // Number of recursions to tips of branches
F32 mScaleStep; // Multiplier for scale at each recursion level
U8 mTrunkDepth;
F32 mLeafScale; // Scales leaf texture when rendering
F32 mBillboardScale; // How big to draw the billboard?
F32 mBillboardRatio; // Height to width ratio of billboard
F32 mTrunkAspect; // Ratio between width/length of trunk
F32 mBranchAspect; // Ratio between width/length of branch
F32 mRandomLeafRotate; // How much to randomly rotate leaves about arbitrary axis
U32 mFrameCount;
typedef std::map<U32, TreeSpeciesData*> SpeciesMap;
static SpeciesMap sSpeciesTable;
static S32 sLODIndexOffset[4];
static S32 sLODIndexCount[4];
static S32 sLODVertexOffset[4];
static S32 sLODVertexCount[4];
static S32 sLODSlices[4];
static F32 sLODAngles[4];
};
#endif
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