1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/**
* @file llvotree.h
* @brief LLVOTree class header file
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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.
* $/LicenseInfo$
*/
#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
{
protected:
~LLVOTree();
public:
enum
{
VERTEX_DATA_MASK = (1 << LLVertexBuffer::TYPE_VERTEX) |
(1 << LLVertexBuffer::TYPE_NORMAL) |
(1 << LLVertexBuffer::TYPE_TEXCOORD0)
};
LLVOTree(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
// 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();
void calcNumVerts(U32& vert_count, U32& index_count, S32 trunk_LOD, S32 stop_level, U16 depth, U16 trunk_depth, F32 branches);
void updateMesh();
void appendMesh(LLStrider<LLVector3>& vertices,
LLStrider<LLVector3>& normals,
LLStrider<LLVector2>& tex_coords,
LLStrider<U16>& indices,
U16& idx_offset,
LLMatrix4& matrix,
LLMatrix4& norm_mat,
S32 vertex_offset,
S32 vertex_count,
S32 index_count,
S32 index_offset);
void genBranchPipeline(LLStrider<LLVector3>& vertices,
LLStrider<LLVector3>& normals,
LLStrider<LLVector2>& tex_coords,
LLStrider<U16>& indices,
U16& index_offset,
LLMatrix4& matrix,
S32 trunk_LOD,
S32 stop_level,
U16 depth,
U16 trunk_depth,
F32 scale,
F32 twist,
F32 droop,
F32 branches,
F32 alpha);
U32 drawBranchPipeline(LLMatrix4& matrix, U16* indicesp, S32 trunk_LOD, S32 stop_level, U16 depth, U16 trunk_depth, F32 scale, F32 twist, F32 droop, F32 branches, F32 alpha);
/*virtual*/ BOOL lineSegmentIntersect(const LLVector3& start, const LLVector3& end,
S32 face = -1, // which face to check, -1 = ALL_SIDES
BOOL pick_transparent = FALSE,
S32* face_hit = NULL, // which face was hit
LLVector3* intersection = NULL, // return the intersection point
LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point
LLVector3* normal = NULL, // return the surface normal at the intersection point
LLVector3* bi_normal = NULL // return the surface bi-normal at the intersection point
);
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<LLVertexBuffer> mReferenceBuffer; //reference geometry for generating tree mesh
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;
U32 mTrunkLOD;
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
// cache last position+rotation so we can detect the need for a
// complete rebuild when not animating
LLVector3 mLastPosition;
LLQuaternion mLastRotation;
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
|
