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-rw-r--r--OpenSim/Region/Physics/OdePlugin/OdePlugin.cs125
1 files changed, 118 insertions, 7 deletions
diff --git a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
index bfc16fd..47839ca 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
@@ -85,8 +85,9 @@ namespace OpenSim.Region.Physics.OdePlugin
85 private static float metersInSpace = 29.9f; 85 private static float metersInSpace = 29.9f;
86 private IntPtr contactgroup; 86 private IntPtr contactgroup;
87 private IntPtr LandGeom = (IntPtr) 0; 87 private IntPtr LandGeom = (IntPtr) 0;
88 private double[] _heightmap; 88 private float[] _heightmap;
89 private float[] _origheightmap; 89 private float[] _origheightmap;
90
90 private d.NearCallback nearCallback; 91 private d.NearCallback nearCallback;
91 public d.TriCallback triCallback; 92 public d.TriCallback triCallback;
92 public d.TriArrayCallback triArrayCallback; 93 public d.TriArrayCallback triArrayCallback;
@@ -185,7 +186,7 @@ namespace OpenSim.Region.Physics.OdePlugin
185 } 186 }
186 187
187 // zero out a heightmap array float array (single dimention [flattened])) 188 // zero out a heightmap array float array (single dimention [flattened]))
188 _heightmap = new double[514*514]; 189 _heightmap = new float[514*514];
189 190
190 191
191 // Zero out the prim spaces array (we split our space into smaller spaces so 192 // Zero out the prim spaces array (we split our space into smaller spaces so
@@ -1152,8 +1153,118 @@ namespace OpenSim.Region.Physics.OdePlugin
1152 get { return (false); // for now we won't be multithreaded 1153 get { return (false); // for now we won't be multithreaded
1153 } 1154 }
1154 } 1155 }
1156 public float[] ResizeTerrain512NearestNeighbour(float[] heightMap)
1157 {
1158 float[] returnarr = new float[262144];
1159 float[,] resultarr = new float[m_regionWidth, m_regionHeight];
1160
1161 // Filling out the array into it's multi-dimentional components
1162 for (int y = 0; y < m_regionHeight; y++)
1163 {
1164 for (int x = 0; x < m_regionWidth; x++)
1165 {
1166 resultarr[y, x] = heightMap[y * m_regionWidth + x];
1167 }
1168 }
1169
1170 // Resize using Nearest Neighbour
1171
1172 // This particular way is quick but it only works on a multiple of the original
1173
1174 // The idea behind this method can be described with the following diagrams
1175 // second pass and third pass happen in the same loop really.. just separated
1176 // them to show what this does.
1177
1178 // First Pass
1179 // ResultArr:
1180 // 1,1,1,1,1,1
1181 // 1,1,1,1,1,1
1182 // 1,1,1,1,1,1
1183 // 1,1,1,1,1,1
1184 // 1,1,1,1,1,1
1185 // 1,1,1,1,1,1
1155 1186
1156 public float[] ResizeTerrain512(float[] heightMap) 1187 // Second Pass
1188 // ResultArr2:
1189 // 1,,1,,1,,1,,1,,1,
1190 // ,,,,,,,,,,
1191 // 1,,1,,1,,1,,1,,1,
1192 // ,,,,,,,,,,
1193 // 1,,1,,1,,1,,1,,1,
1194 // ,,,,,,,,,,
1195 // 1,,1,,1,,1,,1,,1,
1196 // ,,,,,,,,,,
1197 // 1,,1,,1,,1,,1,,1,
1198 // ,,,,,,,,,,
1199 // 1,,1,,1,,1,,1,,1,
1200
1201 // Third pass fills in the blanks
1202 // ResultArr2:
1203 // 1,1,1,1,1,1,1,1,1,1,1,1
1204 // 1,1,1,1,1,1,1,1,1,1,1,1
1205 // 1,1,1,1,1,1,1,1,1,1,1,1
1206 // 1,1,1,1,1,1,1,1,1,1,1,1
1207 // 1,1,1,1,1,1,1,1,1,1,1,1
1208 // 1,1,1,1,1,1,1,1,1,1,1,1
1209 // 1,1,1,1,1,1,1,1,1,1,1,1
1210 // 1,1,1,1,1,1,1,1,1,1,1,1
1211 // 1,1,1,1,1,1,1,1,1,1,1,1
1212 // 1,1,1,1,1,1,1,1,1,1,1,1
1213 // 1,1,1,1,1,1,1,1,1,1,1,1
1214
1215 // X,Y = .
1216 // X+1,y = ^
1217 // X,Y+1 = *
1218 // X+1,Y+1 = #
1219
1220 // Filling in like this;
1221 // .*
1222 // ^#
1223 // 1st .
1224 // 2nd *
1225 // 3rd ^
1226 // 4th #
1227 // on single loop.
1228
1229 float[,] resultarr2 = new float[512, 512];
1230 for (int y = 0; y < m_regionHeight; y++)
1231 {
1232 for (int x = 0; x < m_regionWidth; x++)
1233 {
1234 resultarr2[y * 2, x * 2] = resultarr[y, x];
1235
1236 if (y < m_regionHeight)
1237 {
1238 resultarr2[(y * 2) + 1, x * 2] = resultarr[y, x];
1239 }
1240 if (x < m_regionWidth)
1241 {
1242 resultarr2[y * 2, (x * 2) + 1] = resultarr[y, x];
1243 }
1244 if (x < m_regionWidth && y < m_regionHeight)
1245 {
1246 resultarr2[(y * 2) + 1, (x * 2) + 1] = resultarr[y, x];
1247 }
1248 }
1249 }
1250 //Flatten out the array
1251 int i = 0;
1252 for (int y = 0; y < 512; y++)
1253 {
1254 for (int x = 0; x < 512; x++)
1255 {
1256 if (resultarr2[y, x] <= 0)
1257 returnarr[i] = 0.0000001f;
1258 else
1259 returnarr[i] = resultarr2[y, x];
1260
1261 i++;
1262 }
1263 }
1264
1265 return returnarr;
1266 }
1267 public float[] ResizeTerrain512Interpolation(float[] heightMap)
1157 { 1268 {
1158 float[] returnarr = new float[262144]; 1269 float[] returnarr = new float[262144];
1159 float[,] resultarr = new float[m_regionWidth,m_regionHeight]; 1270 float[,] resultarr = new float[m_regionWidth,m_regionHeight];
@@ -1315,11 +1426,11 @@ namespace OpenSim.Region.Physics.OdePlugin
1315 const uint heightmapHeightSamples = 2*m_regionHeight + 2; 1426 const uint heightmapHeightSamples = 2*m_regionHeight + 2;
1316 const float scale = 1.0f; 1427 const float scale = 1.0f;
1317 const float offset = 0.0f; 1428 const float offset = 0.0f;
1318 const float thickness = 2.0f; 1429 const float thickness = 0.2f;
1319 const int wrap = 0; 1430 const int wrap = 0;
1320 1431
1321 //Double resolution 1432 //Double resolution
1322 heightMap = ResizeTerrain512(heightMap); 1433 heightMap = ResizeTerrain512Interpolation(heightMap);
1323 for (int x = 0; x < heightmapWidthSamples; x++) 1434 for (int x = 0; x < heightmapWidthSamples; x++)
1324 { 1435 {
1325 for (int y = 0; y < heightmapHeightSamples; y++) 1436 for (int y = 0; y < heightmapHeightSamples; y++)
@@ -1327,7 +1438,7 @@ namespace OpenSim.Region.Physics.OdePlugin
1327 int xx = Util.Clip(x - 1, 0, 511); 1438 int xx = Util.Clip(x - 1, 0, 511);
1328 int yy = Util.Clip(y - 1, 0, 511); 1439 int yy = Util.Clip(y - 1, 0, 511);
1329 1440
1330 double val = (double) heightMap[yy*512 + xx]; 1441 float val = heightMap[yy*512 + xx];
1331 _heightmap[x*heightmapHeightSamples + y] = val; 1442 _heightmap[x*heightmapHeightSamples + y] = val;
1332 } 1443 }
1333 } 1444 }
@@ -1339,7 +1450,7 @@ namespace OpenSim.Region.Physics.OdePlugin
1339 d.SpaceRemove(space, LandGeom); 1450 d.SpaceRemove(space, LandGeom);
1340 } 1451 }
1341 IntPtr HeightmapData = d.GeomHeightfieldDataCreate(); 1452 IntPtr HeightmapData = d.GeomHeightfieldDataCreate();
1342 d.GeomHeightfieldDataBuildDouble(HeightmapData, _heightmap, 0, heightmapWidth, heightmapHeight, 1453 d.GeomHeightfieldDataBuildSingle(HeightmapData, _heightmap, 0, heightmapWidth, heightmapHeight,
1343 (int) heightmapWidthSamples, (int) heightmapHeightSamples, scale, 1454 (int) heightmapWidthSamples, (int) heightmapHeightSamples, scale,
1344 offset, thickness, wrap); 1455 offset, thickness, wrap);
1345 d.GeomHeightfieldDataSetBounds(HeightmapData, m_regionWidth, m_regionHeight); 1456 d.GeomHeightfieldDataSetBounds(HeightmapData, m_regionWidth, m_regionHeight);