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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Reflection;
using OpenMetaverse;
using OpenMetaverse.Imaging;
using Nini.Config;
using log4net;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
namespace OpenSim.Region.Environment.Modules.World.WorldMap
{
public class ShadedMapTileRenderer : IMapTileTerrainRenderer
{
private static readonly ILog m_log =
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private Scene m_scene;
//private IConfigSource m_config; // not used currently
public void Initialise(Scene scene, IConfigSource config)
{
m_scene = scene;
// m_config = config; // not used currently
}
public void TerrainToBitmap(Bitmap mapbmp)
{
int tc = System.Environment.TickCount;
m_log.Info("[MAPTILE]: Generating Maptile Step 1: Terrain");
double[,] hm = m_scene.Heightmap.GetDoubles();
bool ShadowDebugContinue = true;
bool terraincorruptedwarningsaid = false;
float low = 255;
float high = 0;
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 256; y++)
{
float hmval = (float)hm[x, y];
if (hmval < low)
low = hmval;
if (hmval > high)
high = hmval;
}
}
float waterHeight = (float)m_scene.RegionInfo.RegionSettings.WaterHeight;
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 256; y++)
{
// Y flip the cordinates for the bitmap: hf origin is lower left, bm origin is upper left
int yr = 255 - y;
float heightvalue = (float)hm[x, y];
if (heightvalue > waterHeight)
{
// scale height value
// No, that doesn't scale it:
// heightvalue = low + mid * (heightvalue - low) / mid; => low + (heightvalue - low) * mid / mid = low + (heightvalue - low) * 1 = low + heightvalue - low = heightvalue
if (Single.IsInfinity(heightvalue) || Single.IsNaN(heightvalue))
heightvalue = 0;
else if (heightvalue > 255f)
heightvalue = 255f;
else if (heightvalue < 0f)
heightvalue = 0f;
Color color = Color.FromArgb((int)heightvalue, 100, (int)heightvalue);
mapbmp.SetPixel(x, yr, color);
try
{
//X
// .
//
// Shade the terrain for shadows
if (x < 255 && yr < 255)
{
float hfvalue = (float)hm[x, y];
float hfvaluecompare = 0f;
if ((x + 1 < 256) && (y + 1 < 256))
{
hfvaluecompare = (float)hm[x + 1, y + 1]; // light from north-east => look at land height there
}
if (Single.IsInfinity(hfvalue) || Single.IsNaN(hfvalue))
hfvalue = 0f;
if (Single.IsInfinity(hfvaluecompare) || Single.IsNaN(hfvaluecompare))
hfvaluecompare = 0f;
float hfdiff = hfvalue - hfvaluecompare; // => positive if NE is lower, negative if here is lower
int hfdiffi = 0;
int hfdiffihighlight = 0;
float highlightfactor = 0.18f;
try
{
// hfdiffi = Math.Abs((int)((hfdiff * 4) + (hfdiff * 0.5))) + 1;
hfdiffi = Math.Abs((int)(hfdiff * 4.5f)) + 1;
if (hfdiff % 1f != 0)
{
// hfdiffi = hfdiffi + Math.Abs((int)(((hfdiff % 1) * 0.5f) * 10f) - 1);
hfdiffi = hfdiffi + Math.Abs((int)((hfdiff % 1f) * 5f) - 1);
}
hfdiffihighlight = Math.Abs((int)((hfdiff * highlightfactor) * 4.5f)) + 1;
if (hfdiff % 1f != 0)
{
// hfdiffi = hfdiffi + Math.Abs((int)(((hfdiff % 1) * 0.5f) * 10f) - 1);
hfdiffihighlight = hfdiffihighlight + Math.Abs((int)(((hfdiff * highlightfactor) % 1f) * 5f) - 1);
}
}
catch (System.OverflowException)
{
m_log.Debug("[MAPTILE]: Shadow failed at value: " + hfdiff.ToString());
ShadowDebugContinue = false;
}
if (hfdiff > 0.3f)
{
// NE is lower than here
// We have to desaturate and lighten the land at the same time
// we use floats, colors use bytes, so shrink are space down to
// 0-255
if (ShadowDebugContinue)
{
int r = color.R;
int g = color.G;
int b = color.B;
color = Color.FromArgb((r + hfdiffihighlight < 255) ? r + hfdiffihighlight : 255,
(g + hfdiffihighlight < 255) ? g + hfdiffihighlight : 255,
(b + hfdiffihighlight < 255) ? b + hfdiffihighlight : 255);
}
}
else if (hfdiff < -0.3f)
{
// here is lower than NE:
// We have to desaturate and blacken the land at the same time
// we use floats, colors use bytes, so shrink are space down to
// 0-255
if (ShadowDebugContinue)
{
if ((x - 1 > 0) && (yr + 1 < 256))
{
color = mapbmp.GetPixel(x - 1, yr + 1);
int r = color.R;
int g = color.G;
int b = color.B;
color = Color.FromArgb((r - hfdiffi > 0) ? r - hfdiffi : 0,
(g - hfdiffi > 0) ? g - hfdiffi : 0,
(b - hfdiffi > 0) ? b - hfdiffi : 0);
mapbmp.SetPixel(x-1, yr+1, color);
}
}
}
}
}
catch (System.ArgumentException)
{
if (!terraincorruptedwarningsaid)
{
m_log.WarnFormat("[MAPIMAGE]: Your terrain is corrupted in region {0}, it might take a few minutes to generate the map image depending on the corruption level", m_scene.RegionInfo.RegionName);
terraincorruptedwarningsaid = true;
}
color = Color.Black;
mapbmp.SetPixel(x, yr, color);
}
}
else
{
// We're under the water level with the terrain, so paint water instead of land
// Y flip the cordinates
heightvalue = waterHeight - heightvalue;
if (Single.IsInfinity(heightvalue) || Single.IsNaN(heightvalue))
heightvalue = 0f;
else if (heightvalue > 19f)
heightvalue = 19f;
else if (heightvalue < 0f)
heightvalue = 0f;
heightvalue = 100f - (heightvalue * 100f) / 19f;
try
{
Color water = Color.FromArgb((int)heightvalue, (int)heightvalue, 255);
mapbmp.SetPixel(x, yr, water);
}
catch (System.ArgumentException)
{
if (!terraincorruptedwarningsaid)
{
m_log.WarnFormat("[MAPIMAGE]: Your terrain is corrupted in region {0}, it might take a few minutes to generate the map image depending on the corruption level", m_scene.RegionInfo.RegionName);
terraincorruptedwarningsaid = true;
}
Color black = Color.Black;
mapbmp.SetPixel(x, (256 - y) - 1, black);
}
}
}
}
m_log.Info("[MAPTILE]: Generating Maptile Step 1: Done in " + (System.Environment.TickCount - tc) + " ms");
}
}
}
|
