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
|
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef DISPNODE_H
#define DISPNODE_H
#ifdef _WIN32
#pragma once
#endif
//=========== (C) Copyright 2000 Valve, L.L.C. All rights reserved. ===========
//
// The copyright to the contents herein is the property of Valve, L.L.C.
// The contents may be used and/or copied only with the written permission of
// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
// the agreement/contract under which the contents have been supplied.
//
// $Revision: $
// $NoKeywords: $
//=============================================================================
//=============================================================================
//
// Displacement Node Class
//
// "Neighbor Nodes" "Node Vert Indices"
// 1 6----1----7
// | | \ | / |
// 0 --+-- 2 | \|/ | "Corner {SW, SE, NW, NE} : {4, 5, 6, 7}"
// | 0 -Orig-- 2
// 3 | /|\ | "Edge {W, N, E, S} : {0, 1, 2, 3}"
// | / | \ |
// 4----3----5
//
class CDispNode
{
public:
enum{ W = 0, N, E, S, SW, SE, NW, NE };
//=========================================================================
//
// Construction/Decontruction
//
CDispNode() {};
~CDispNode() {};
//=========================================================================
//
//
//
inline void SetBoundingBox( const Vector& bbMin, const Vector& bbMax );
inline void GetBoundingBox( Vector& bbMin, Vector& bbMax );
inline void SetErrorTerm( float error );
inline float GetErrorTerm( void );
inline void SetNeighborNodeIndex( int direction, int nodeIndex );
inline int GetNeighborNodeIndex( int direction );
inline void SetOrigVertexIndex( int vertIndex );
inline int GetOrigVertexIndex( void );
inline void SetVertexIndex( int direction, int vertIndex );
inline int GetVertexIndex( int direction );
inline void SetTouched( bool bTouched );
inline bool IsTouched( void );
inline void SetActivity( bool bActive );
inline bool IsActive( void );
private:
Vector m_BBox[2]; // axial-aligned bounding box
float m_ErrorTerm; // LOD error term
int m_NeighborNodeIndices[4]; // neighbor node indices
int m_OrigVertIndex; // origin vertex index
int m_VertIndices[8]; // neighboring vertex indices
bool m_bTouched; // "touched" flag
bool m_bActive; // "active" flag -- rendering
};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetBoundingBox( const Vector& bbMin, const Vector& bbMax )
{
VectorCopy( bbMin, m_BBox[0] );
VectorCopy( bbMax, m_BBox[1] );
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::GetBoundingBox( Vector& bbMin, Vector& bbMax )
{
VectorCopy( m_BBox[0], bbMin );
VectorCopy( m_BBox[1], bbMax );
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetErrorTerm( float error )
{
m_ErrorTerm = error;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline float CDispNode::GetErrorTerm( void )
{
return m_ErrorTerm;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetNeighborNodeIndex( int direction, int nodeIndex )
{
m_NeighborNodeIndices[direction] = nodeIndex;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline int CDispNode::GetNeighborNodeIndex( int direction )
{
return m_NeighborNodeIndices[direction];
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetOrigVertexIndex( int vertIndex )
{
m_OrigVertIndex = vertIndex;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline int CDispNode::GetOrigVertexIndex( void )
{
return m_OrigVertIndex;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetVertexIndex( int direction, int vertIndex )
{
m_VertIndices[direction] = vertIndex;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline int CDispNode::GetVertexIndex( int direction )
{
return m_VertIndices[direction];
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetTouched( bool bTouched )
{
m_bTouched = bTouched;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline bool CDispNode::IsTouched( void )
{
return m_bTouched;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline void CDispNode::SetActivity( bool bActive )
{
m_bActive = bActive;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
inline bool CDispNode::IsActive( void )
{
return m_bActive;
}
#endif // DISPNODE_H
|