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
|
/**
* @file llheroprobemanager.h
* @brief LLHeroProbeManager class declaration
*
* $LicenseInfo:firstyear=2022&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2022, 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
* $/LicenseInfo$
*/
#pragma once
#include "llreflectionmap.h"
#include "llrendertarget.h"
#include "llcubemaparray.h"
#include "llcubemap.h"
#include "lldrawable.h"
class LLSpatialGroup;
class LLViewerObject;
// number of reflection probes to keep in vram
#define LL_MAX_HERO_PROBE_COUNT 2
struct HeroProbeData
{
LLMatrix4 heroBox;
LLVector4 heroSphere;
GLint heroShape;
GLint heroMipCount;
GLint heroProbeCount;
};
class alignas(16) LLHeroProbeManager
{
LL_ALIGN_NEW
public:
enum class DetailLevel
{
STATIC_ONLY = 0,
STATIC_AND_DYNAMIC,
REALTIME = 2
};
// allocate an environment map of the given resolution
LLHeroProbeManager();
// release any GL state
void cleanup();
// maintain reflection probes
void update();
// debug display, called from llspatialpartition if reflection
// probe debug display is active
void renderDebug();
// call once at startup to allocate cubemap arrays
void initReflectionMaps();
// perform occlusion culling on all active reflection probes
void doOcclusion();
bool registerViewerObject(LLVOVolume *drawablep);
void unregisterViewerObject(LLVOVolume* drawablep);
bool isMirrorPass() const { return mRenderingMirror; }
LLVector3 mMirrorPosition;
LLVector3 mMirrorNormal;
HeroProbeData mHeroData;
private:
friend class LLPipeline;
friend class LLReflectionMapManager;
// update UBO used for rendering (call only once per render pipe flush)
void updateUniforms();
// bind UBO used for rendering
// render target for cube snapshots
// used to generate mipmaps without doing a copy-to-texture
LLRenderTarget mRenderTarget;
LLRenderTarget mHeroRenderTarget;
std::vector<LLRenderTarget> mMipChain;
// storage for reflection probe radiance maps (plus two scratch space cubemaps)
LLPointer<LLCubeMapArray> mTexture;
// vertex buffer for pushing verts to filter shaders
LLPointer<LLVertexBuffer> mVertexBuffer;
LLPlane mCurrentClipPlane;
// update the specified face of the specified probe
void updateProbeFace(LLReflectionMap* probe, U32 face, F32 near_clip);
void generateRadiance(LLReflectionMap *probe);
// list of active reflection maps
std::vector<LLPointer<LLReflectionMap>> mProbes;
// list of maps being used for rendering
std::vector<LLReflectionMap*> mReflectionMaps;
LLReflectionMap* mUpdatingProbe = nullptr;
LLPointer<LLReflectionMap> mDefaultProbe; // default reflection probe to fall back to for pixels with no probe influences (should always be at cube index 0)
// number of reflection probes to use for rendering
U32 mReflectionProbeCount;
// resolution of reflection probes
U32 mProbeResolution = 1024;
// maximum LoD of reflection probes (mip levels - 1)
F32 mMaxProbeLOD = 6.f;
F32 mHeroProbeStrength = 1.f;
bool mIsInTransition = false;
// if true, reset all probe render state on the next update (for teleports and sky changes)
bool mReset = false;
bool mRenderingMirror = false;
std::map<int, int> mFaceUpdateList;
U32 mCurrentProbeUpdateFrame = 0;
std::vector<LLPointer<LLVOVolume>> mHeroVOList;
LLPointer<LLVOVolume> mNearestHero;
};
|
