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Diffstat (limited to 'OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs')
-rwxr-xr-xOpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs998
1 files changed, 142 insertions, 856 deletions
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
index 220fbbc..32bbc8f 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
@@ -38,38 +38,15 @@ public sealed class BSShapeCollection : IDisposable
38{ 38{
39 private static string LogHeader = "[BULLETSIM SHAPE COLLECTION]"; 39 private static string LogHeader = "[BULLETSIM SHAPE COLLECTION]";
40 40
41 private BSScene PhysicsScene { get; set; } 41 private BSScene m_physicsScene { get; set; }
42 42
43 private Object m_collectionActivityLock = new Object(); 43 private Object m_collectionActivityLock = new Object();
44 44
45 // Description of a Mesh
46 private struct MeshDesc
47 {
48 public BulletShape shape;
49 public int referenceCount;
50 public DateTime lastReferenced;
51 public UInt64 shapeKey;
52 }
53
54 // Description of a hull.
55 // Meshes and hulls have the same shape hash key but we only need hulls for efficient collision calculations.
56 private struct HullDesc
57 {
58 public BulletShape shape;
59 public int referenceCount;
60 public DateTime lastReferenced;
61 public UInt64 shapeKey;
62 }
63
64 // The sharable set of meshes and hulls. Indexed by their shape hash.
65 private Dictionary<System.UInt64, MeshDesc> Meshes = new Dictionary<System.UInt64, MeshDesc>();
66 private Dictionary<System.UInt64, HullDesc> Hulls = new Dictionary<System.UInt64, HullDesc>();
67
68 private bool DDetail = false; 45 private bool DDetail = false;
69 46
70 public BSShapeCollection(BSScene physScene) 47 public BSShapeCollection(BSScene physScene)
71 { 48 {
72 PhysicsScene = physScene; 49 m_physicsScene = physScene;
73 // Set the next to 'true' for very detailed shape update detailed logging (detailed details?) 50 // Set the next to 'true' for very detailed shape update detailed logging (detailed details?)
74 // While detailed debugging is still active, this is better than commenting out all the 51 // While detailed debugging is still active, this is better than commenting out all the
75 // DetailLog statements. When debugging slows down, this and the protected logging 52 // DetailLog statements. When debugging slows down, this and the protected logging
@@ -86,22 +63,18 @@ public sealed class BSShapeCollection : IDisposable
86 // Mostly used for changing bodies out from under Linksets. 63 // Mostly used for changing bodies out from under Linksets.
87 // Useful for other cases where parameters need saving. 64 // Useful for other cases where parameters need saving.
88 // Passing 'null' says no callback. 65 // Passing 'null' says no callback.
89 public delegate void ShapeDestructionCallback(BulletShape shape); 66 public delegate void PhysicalDestructionCallback(BulletBody pBody, BulletShape pShape);
90 public delegate void BodyDestructionCallback(BulletBody body);
91 67
92 // Called to update/change the body and shape for an object. 68 // Called to update/change the body and shape for an object.
93 // First checks the shape and updates that if necessary then makes 69 // The object has some shape and body on it. Here we decide if that is the correct shape
94 // sure the body is of the right type. 70 // for the current state of the object (static/dynamic/...).
71 // If bodyCallback is not null, it is called if either the body or the shape are changed
72 // so dependencies (like constraints) can be removed before the physical object is dereferenced.
95 // Return 'true' if either the body or the shape changed. 73 // Return 'true' if either the body or the shape changed.
96 // 'shapeCallback' and 'bodyCallback' are, if non-null, functions called just before 74 // Called at taint-time.
97 // the current shape or body is destroyed. This allows the caller to remove any 75 public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim, PhysicalDestructionCallback bodyCallback)
98 // higher level dependencies on the shape or body. Mostly used for LinkSets to
99 // remove the physical constraints before the body is destroyed.
100 // Called at taint-time!!
101 public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim,
102 ShapeDestructionCallback shapeCallback, BodyDestructionCallback bodyCallback)
103 { 76 {
104 PhysicsScene.AssertInTaintTime("BSShapeCollection.GetBodyAndShape"); 77 m_physicsScene.AssertInTaintTime("BSShapeCollection.GetBodyAndShape");
105 78
106 bool ret = false; 79 bool ret = false;
107 80
@@ -111,12 +84,12 @@ public sealed class BSShapeCollection : IDisposable
111 // Do we have the correct geometry for this type of object? 84 // Do we have the correct geometry for this type of object?
112 // Updates prim.BSShape with information/pointers to shape. 85 // Updates prim.BSShape with information/pointers to shape.
113 // Returns 'true' of BSShape is changed to a new shape. 86 // Returns 'true' of BSShape is changed to a new shape.
114 bool newGeom = CreateGeom(forceRebuild, prim, shapeCallback); 87 bool newGeom = CreateGeom(forceRebuild, prim, bodyCallback);
115 // If we had to select a new shape geometry for the object, 88 // If we had to select a new shape geometry for the object,
116 // rebuild the body around it. 89 // rebuild the body around it.
117 // Updates prim.BSBody with information/pointers to requested body 90 // Updates prim.BSBody with information/pointers to requested body
118 // Returns 'true' if BSBody was changed. 91 // Returns 'true' if BSBody was changed.
119 bool newBody = CreateBody((newGeom || forceRebuild), prim, PhysicsScene.World, bodyCallback); 92 bool newBody = CreateBody((newGeom || forceRebuild), prim, m_physicsScene.World, bodyCallback);
120 ret = newGeom || newBody; 93 ret = newGeom || newBody;
121 } 94 }
122 DetailLog("{0},BSShapeCollection.GetBodyAndShape,taintExit,force={1},ret={2},body={3},shape={4}", 95 DetailLog("{0},BSShapeCollection.GetBodyAndShape,taintExit,force={1},ret={2},body={3},shape={4}",
@@ -127,274 +100,20 @@ public sealed class BSShapeCollection : IDisposable
127 100
128 public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim) 101 public bool GetBodyAndShape(bool forceRebuild, BulletWorld sim, BSPhysObject prim)
129 { 102 {
130 return GetBodyAndShape(forceRebuild, sim, prim, null, null); 103 return GetBodyAndShape(forceRebuild, sim, prim, null);
131 }
132
133 // Track another user of a body.
134 // We presume the caller has allocated the body.
135 // Bodies only have one user so the body is just put into the world if not already there.
136 private void ReferenceBody(BulletBody body)
137 {
138 lock (m_collectionActivityLock)
139 {
140 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceBody,newBody,body={1}", body.ID, body);
141 if (!PhysicsScene.PE.IsInWorld(PhysicsScene.World, body))
142 {
143 PhysicsScene.PE.AddObjectToWorld(PhysicsScene.World, body);
144 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceBody,addedToWorld,ref={1}", body.ID, body);
145 }
146 }
147 }
148
149 // Release the usage of a body.
150 // Called when releasing use of a BSBody. BSShape is handled separately.
151 // Called in taint time.
152 public void DereferenceBody(BulletBody body, BodyDestructionCallback bodyCallback )
153 {
154 if (!body.HasPhysicalBody)
155 return;
156
157 PhysicsScene.AssertInTaintTime("BSShapeCollection.DereferenceBody");
158
159 lock (m_collectionActivityLock)
160 {
161 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceBody,DestroyingBody,body={1}", body.ID, body);
162 // If the caller needs to know the old body is going away, pass the event up.
163 if (bodyCallback != null) bodyCallback(body);
164
165 if (PhysicsScene.PE.IsInWorld(PhysicsScene.World, body))
166 {
167 PhysicsScene.PE.RemoveObjectFromWorld(PhysicsScene.World, body);
168 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceBody,removingFromWorld. Body={1}", body.ID, body);
169 }
170
171 // Zero any reference to the shape so it is not freed when the body is deleted.
172 PhysicsScene.PE.SetCollisionShape(PhysicsScene.World, body, null);
173 PhysicsScene.PE.DestroyObject(PhysicsScene.World, body);
174 }
175 }
176
177 // Track the datastructures and use count for a shape.
178 // When creating a hull, this is called first to reference the mesh
179 // and then again to reference the hull.
180 // Meshes and hulls for the same shape have the same hash key.
181 // NOTE that native shapes are not added to the mesh list or removed.
182 // Returns 'true' if this is the initial reference to the shape. Otherwise reused.
183 public bool ReferenceShape(BulletShape shape)
184 {
185 bool ret = false;
186 switch (shape.type)
187 {
188 case BSPhysicsShapeType.SHAPE_MESH:
189 MeshDesc meshDesc;
190 if (Meshes.TryGetValue(shape.shapeKey, out meshDesc))
191 {
192 // There is an existing instance of this mesh.
193 meshDesc.referenceCount++;
194 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceShape,existingMesh,key={1},cnt={2}",
195 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
196 }
197 else
198 {
199 // This is a new reference to a mesh
200 meshDesc.shape = shape.Clone();
201 meshDesc.shapeKey = shape.shapeKey;
202 // We keep a reference to the underlying IMesh data so a hull can be built
203 meshDesc.referenceCount = 1;
204 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceShape,newMesh,key={1},cnt={2}",
205 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
206 ret = true;
207 }
208 meshDesc.lastReferenced = System.DateTime.Now;
209 Meshes[shape.shapeKey] = meshDesc;
210 break;
211 case BSPhysicsShapeType.SHAPE_HULL:
212 HullDesc hullDesc;
213 if (Hulls.TryGetValue(shape.shapeKey, out hullDesc))
214 {
215 // There is an existing instance of this hull.
216 hullDesc.referenceCount++;
217 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceShape,existingHull,key={1},cnt={2}",
218 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
219 }
220 else
221 {
222 // This is a new reference to a hull
223 hullDesc.shape = shape.Clone();
224 hullDesc.shapeKey = shape.shapeKey;
225 hullDesc.referenceCount = 1;
226 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceShape,newHull,key={1},cnt={2}",
227 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
228 ret = true;
229
230 }
231 hullDesc.lastReferenced = System.DateTime.Now;
232 Hulls[shape.shapeKey] = hullDesc;
233 break;
234 case BSPhysicsShapeType.SHAPE_UNKNOWN:
235 break;
236 default:
237 // Native shapes are not tracked and they don't go into any list
238 break;
239 }
240 return ret;
241 } 104 }
242 105
243 // Release the usage of a shape. 106 // If the existing prim's shape is to be replaced, remove the tie to the existing shape
244 public void DereferenceShape(BulletShape shape, ShapeDestructionCallback shapeCallback) 107 // before replacing it.
108 private void DereferenceExistingShape(BSPhysObject prim, PhysicalDestructionCallback shapeCallback)
245 { 109 {
246 if (!shape.HasPhysicalShape) 110 if (prim.PhysShape.HasPhysicalShape)
247 return;
248
249 PhysicsScene.AssertInTaintTime("BSShapeCollection.DereferenceShape");
250
251 if (shape.HasPhysicalShape)
252 {
253 if (shape.isNativeShape)
254 {
255 // Native shapes are not tracked and are released immediately
256 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceShape,deleteNativeShape,ptr={1}",
257 BSScene.DetailLogZero, shape.AddrString);
258 if (shapeCallback != null) shapeCallback(shape);
259 PhysicsScene.PE.DeleteCollisionShape(PhysicsScene.World, shape);
260 }
261 else
262 {
263 switch (shape.type)
264 {
265 case BSPhysicsShapeType.SHAPE_HULL:
266 DereferenceHull(shape, shapeCallback);
267 break;
268 case BSPhysicsShapeType.SHAPE_MESH:
269 DereferenceMesh(shape, shapeCallback);
270 break;
271 case BSPhysicsShapeType.SHAPE_COMPOUND:
272 DereferenceCompound(shape, shapeCallback);
273 break;
274 case BSPhysicsShapeType.SHAPE_UNKNOWN:
275 break;
276 default:
277 break;
278 }
279 }
280 }
281 }
282
283 // Count down the reference count for a mesh shape
284 // Called at taint-time.
285 private void DereferenceMesh(BulletShape shape, ShapeDestructionCallback shapeCallback)
286 {
287 MeshDesc meshDesc;
288 if (Meshes.TryGetValue(shape.shapeKey, out meshDesc))
289 { 111 {
290 meshDesc.referenceCount--; 112 if (shapeCallback != null)
291 // TODO: release the Bullet storage 113 shapeCallback(prim.PhysBody, prim.PhysShape.physShapeInfo);
292 if (shapeCallback != null) shapeCallback(shape); 114 prim.PhysShape.Dereference(m_physicsScene);
293 meshDesc.lastReferenced = System.DateTime.Now;
294 Meshes[shape.shapeKey] = meshDesc;
295 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceMesh,shape={1},refCnt={2}",
296 BSScene.DetailLogZero, shape, meshDesc.referenceCount);
297
298 }
299 }
300
301 // Count down the reference count for a hull shape
302 // Called at taint-time.
303 private void DereferenceHull(BulletShape shape, ShapeDestructionCallback shapeCallback)
304 {
305 HullDesc hullDesc;
306 if (Hulls.TryGetValue(shape.shapeKey, out hullDesc))
307 {
308 hullDesc.referenceCount--;
309 // TODO: release the Bullet storage (aging old entries?)
310
311 // Tell upper layers that, if they have dependencies on this shape, this link is going away
312 if (shapeCallback != null) shapeCallback(shape);
313
314 hullDesc.lastReferenced = System.DateTime.Now;
315 Hulls[shape.shapeKey] = hullDesc;
316 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceHull,shape={1},refCnt={2}",
317 BSScene.DetailLogZero, shape, hullDesc.referenceCount);
318 }
319 }
320
321 // Remove a reference to a compound shape.
322 // Taking a compound shape apart is a little tricky because if you just delete the
323 // physical shape, it will free all the underlying children. We can't do that because
324 // they could be shared. So, this removes each of the children from the compound and
325 // dereferences them separately before destroying the compound collision object itself.
326 // Called at taint-time.
327 private void DereferenceCompound(BulletShape shape, ShapeDestructionCallback shapeCallback)
328 {
329 if (!PhysicsScene.PE.IsCompound(shape))
330 {
331 // Failed the sanity check!!
332 PhysicsScene.Logger.ErrorFormat("{0} Attempt to free a compound shape that is not compound!! type={1}, ptr={2}",
333 LogHeader, shape.type, shape.AddrString);
334 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceCompound,notACompoundShape,type={1},ptr={2}",
335 BSScene.DetailLogZero, shape.type, shape.AddrString);
336 return;
337 }
338
339 int numChildren = PhysicsScene.PE.GetNumberOfCompoundChildren(shape);
340 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceCompound,shape={1},children={2}", BSScene.DetailLogZero, shape, numChildren);
341
342 for (int ii = numChildren - 1; ii >= 0; ii--)
343 {
344 BulletShape childShape = PhysicsScene.PE.RemoveChildShapeFromCompoundShapeIndex(shape, ii);
345 DereferenceAnonCollisionShape(childShape);
346 }
347 PhysicsScene.PE.DeleteCollisionShape(PhysicsScene.World, shape);
348 }
349
350 // Sometimes we have a pointer to a collision shape but don't know what type it is.
351 // Figure out type and call the correct dereference routine.
352 // Called at taint-time.
353 private void DereferenceAnonCollisionShape(BulletShape shapeInfo)
354 {
355 MeshDesc meshDesc;
356 HullDesc hullDesc;
357
358 if (TryGetMeshByPtr(shapeInfo, out meshDesc))
359 {
360 shapeInfo.type = BSPhysicsShapeType.SHAPE_MESH;
361 shapeInfo.shapeKey = meshDesc.shapeKey;
362 }
363 else
364 {
365 if (TryGetHullByPtr(shapeInfo, out hullDesc))
366 {
367 shapeInfo.type = BSPhysicsShapeType.SHAPE_HULL;
368 shapeInfo.shapeKey = hullDesc.shapeKey;
369 }
370 else
371 {
372 if (PhysicsScene.PE.IsCompound(shapeInfo))
373 {
374 shapeInfo.type = BSPhysicsShapeType.SHAPE_COMPOUND;
375 }
376 else
377 {
378 if (PhysicsScene.PE.IsNativeShape(shapeInfo))
379 {
380 shapeInfo.isNativeShape = true;
381 shapeInfo.type = BSPhysicsShapeType.SHAPE_BOX; // (technically, type doesn't matter)
382 }
383 }
384 }
385 }
386
387 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceAnonCollisionShape,shape={1}", BSScene.DetailLogZero, shapeInfo);
388
389 if (shapeInfo.type != BSPhysicsShapeType.SHAPE_UNKNOWN)
390 {
391 DereferenceShape(shapeInfo, null);
392 }
393 else
394 {
395 PhysicsScene.Logger.ErrorFormat("{0} Could not decypher shape type. Region={1}, addr={2}",
396 LogHeader, PhysicsScene.RegionName, shapeInfo.AddrString);
397 } 115 }
116 prim.PhysShape = new BSShapeNull();
398 } 117 }
399 118
400 // Create the geometry information in Bullet for later use. 119 // Create the geometry information in Bullet for later use.
@@ -405,60 +124,41 @@ public sealed class BSShapeCollection : IDisposable
405 // Info in prim.BSShape is updated to the new shape. 124 // Info in prim.BSShape is updated to the new shape.
406 // Returns 'true' if the geometry was rebuilt. 125 // Returns 'true' if the geometry was rebuilt.
407 // Called at taint-time! 126 // Called at taint-time!
408 private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback) 127 private bool CreateGeom(bool forceRebuild, BSPhysObject prim, PhysicalDestructionCallback shapeCallback)
409 { 128 {
410 bool ret = false; 129 bool ret = false;
411 bool haveShape = false; 130 bool haveShape = false;
131 bool nativeShapePossible = true;
132 PrimitiveBaseShape pbs = prim.BaseShape;
412 133
413 if (!haveShape && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_CAPSULE) 134 // Kludge to create the capsule for the avatar.
135 // TDOD: Remove/redo this when BSShapeAvatar is working!!
136 BSCharacter theChar = prim as BSCharacter;
137 if (theChar != null)
414 { 138 {
415 // an avatar capsule is close to a native shape (it is not shared) 139 DereferenceExistingShape(prim, shapeCallback);
416 GetReferenceToNativeShape(prim, BSPhysicsShapeType.SHAPE_CAPSULE, FixedShapeKey.KEY_CAPSULE, shapeCallback); 140 prim.PhysShape = BSShapeNative.GetReference(m_physicsScene, prim,
417 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,avatarCapsule,shape={1}", prim.LocalID, prim.PhysShape); 141 BSPhysicsShapeType.SHAPE_CAPSULE, FixedShapeKey.KEY_CAPSULE);
418 ret = true; 142 ret = true;
419 haveShape = true; 143 haveShape = true;
420 } 144 }
421 145
422 // Compound shapes are handled special as they are rebuilt from scratch.
423 // This isn't too great a hardship since most of the child shapes will have already been created.
424 if (!haveShape && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_COMPOUND)
425 {
426 ret = GetReferenceToCompoundShape(prim, shapeCallback);
427 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,compoundShape,shape={1}", prim.LocalID, prim.PhysShape);
428 haveShape = true;
429 }
430
431 if (!haveShape)
432 {
433 ret = CreateGeomNonSpecial(forceRebuild, prim, shapeCallback);
434 }
435
436 return ret;
437 }
438
439 // Create a mesh, hull or native shape.
440 // Return 'true' if the prim's shape was changed.
441 public bool CreateGeomNonSpecial(bool forceRebuild, BSPhysObject prim, ShapeDestructionCallback shapeCallback)
442 {
443 bool ret = false;
444 bool haveShape = false;
445 bool nativeShapePossible = true;
446 PrimitiveBaseShape pbs = prim.BaseShape;
447
448 // If the prim attributes are simple, this could be a simple Bullet native shape 146 // If the prim attributes are simple, this could be a simple Bullet native shape
147 // Native shapes work whether to object is static or physical.
449 if (!haveShape 148 if (!haveShape
450 && nativeShapePossible 149 && nativeShapePossible
451 && pbs != null 150 && pbs != null
452 && !pbs.SculptEntry 151 && PrimHasNoCuts(pbs)
453 && ((pbs.SculptEntry && !BSParam.ShouldMeshSculptedPrim) || PrimHasNoCuts(pbs)) ) 152 && ( !pbs.SculptEntry || (pbs.SculptEntry && !BSParam.ShouldMeshSculptedPrim) )
153 )
454 { 154 {
455 // Get the scale of any existing shape so we can see if the new shape is same native type and same size. 155 // Get the scale of any existing shape so we can see if the new shape is same native type and same size.
456 OMV.Vector3 scaleOfExistingShape = OMV.Vector3.Zero; 156 OMV.Vector3 scaleOfExistingShape = OMV.Vector3.Zero;
457 if (prim.PhysShape.HasPhysicalShape) 157 if (prim.PhysShape.HasPhysicalShape)
458 scaleOfExistingShape = PhysicsScene.PE.GetLocalScaling(prim.PhysShape); 158 scaleOfExistingShape = m_physicsScene.PE.GetLocalScaling(prim.PhysShape.physShapeInfo);
459 159
460 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,maybeNative,force={1},primScale={2},primSize={3},primShape={4}", 160 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,maybeNative,force={1},primScale={2},primSize={3},primShape={4}",
461 prim.LocalID, forceRebuild, prim.Scale, prim.Size, prim.PhysShape.type); 161 prim.LocalID, forceRebuild, prim.Scale, prim.Size, prim.PhysShape.physShapeInfo.shapeType);
462 162
463 // It doesn't look like Bullet scales native spheres so make sure the scales are all equal 163 // It doesn't look like Bullet scales native spheres so make sure the scales are all equal
464 if ((pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1) 164 if ((pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
@@ -466,26 +166,30 @@ public sealed class BSShapeCollection : IDisposable
466 { 166 {
467 haveShape = true; 167 haveShape = true;
468 if (forceRebuild 168 if (forceRebuild
469 || prim.Scale != scaleOfExistingShape 169 || prim.PhysShape.ShapeType != BSPhysicsShapeType.SHAPE_SPHERE
470 || prim.PhysShape.type != BSPhysicsShapeType.SHAPE_SPHERE 170 )
471 )
472 { 171 {
473 ret = GetReferenceToNativeShape(prim, BSPhysicsShapeType.SHAPE_SPHERE, 172 DereferenceExistingShape(prim, shapeCallback);
474 FixedShapeKey.KEY_SPHERE, shapeCallback); 173 prim.PhysShape = BSShapeNative.GetReference(m_physicsScene, prim,
174 BSPhysicsShapeType.SHAPE_SPHERE, FixedShapeKey.KEY_SPHERE);
175 ret = true;
475 } 176 }
476 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,sphere,force={1},rebuilt={2},shape={3}", 177 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,sphere,force={1},rebuilt={2},shape={3}",
477 prim.LocalID, forceRebuild, ret, prim.PhysShape); 178 prim.LocalID, forceRebuild, ret, prim.PhysShape);
478 } 179 }
180 // If we didn't make a sphere, maybe a box will work.
479 if (!haveShape && pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight) 181 if (!haveShape && pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
480 { 182 {
481 haveShape = true; 183 haveShape = true;
482 if (forceRebuild 184 if (forceRebuild
483 || prim.Scale != scaleOfExistingShape 185 || prim.Scale != scaleOfExistingShape
484 || prim.PhysShape.type != BSPhysicsShapeType.SHAPE_BOX 186 || prim.PhysShape.ShapeType != BSPhysicsShapeType.SHAPE_BOX
485 ) 187 )
486 { 188 {
487 ret = GetReferenceToNativeShape( prim, BSPhysicsShapeType.SHAPE_BOX, 189 DereferenceExistingShape(prim, shapeCallback);
488 FixedShapeKey.KEY_BOX, shapeCallback); 190 prim.PhysShape = BSShapeNative.GetReference(m_physicsScene, prim,
191 BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX);
192 ret = true;
489 } 193 }
490 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,box,force={1},rebuilt={2},shape={3}", 194 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,box,force={1},rebuilt={2},shape={3}",
491 prim.LocalID, forceRebuild, ret, prim.PhysShape); 195 prim.LocalID, forceRebuild, ret, prim.PhysShape);
@@ -502,7 +206,7 @@ public sealed class BSShapeCollection : IDisposable
502 } 206 }
503 207
504 // return 'true' if this shape description does not include any cutting or twisting. 208 // return 'true' if this shape description does not include any cutting or twisting.
505 private bool PrimHasNoCuts(PrimitiveBaseShape pbs) 209 public static bool PrimHasNoCuts(PrimitiveBaseShape pbs)
506 { 210 {
507 return pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0 211 return pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0
508 && pbs.ProfileHollow == 0 212 && pbs.ProfileHollow == 0
@@ -514,7 +218,7 @@ public sealed class BSShapeCollection : IDisposable
514 } 218 }
515 219
516 // return 'true' if the prim's shape was changed. 220 // return 'true' if the prim's shape was changed.
517 public bool CreateGeomMeshOrHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback) 221 private bool CreateGeomMeshOrHull(BSPhysObject prim, PhysicalDestructionCallback shapeCallback)
518 { 222 {
519 223
520 bool ret = false; 224 bool ret = false;
@@ -522,503 +226,121 @@ public sealed class BSShapeCollection : IDisposable
522 // made. Native shapes work in either case. 226 // made. Native shapes work in either case.
523 if (prim.IsPhysical && BSParam.ShouldUseHullsForPhysicalObjects) 227 if (prim.IsPhysical && BSParam.ShouldUseHullsForPhysicalObjects)
524 { 228 {
525 // Update prim.BSShape to reference a hull of this shape. 229 // Use a simple, single mesh convex hull shape if the object is simple enough
526 ret = GetReferenceToHull(prim, shapeCallback); 230 BSShape potentialHull = null;
527 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,hull,shape={1},key={2}",
528 prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
529 }
530 else
531 {
532 ret = GetReferenceToMesh(prim, shapeCallback);
533 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,mesh,shape={1},key={2}",
534 prim.LocalID, prim.PhysShape, prim.PhysShape.shapeKey.ToString("X"));
535 }
536 return ret;
537 }
538
539 // Creates a native shape and assignes it to prim.BSShape.
540 // "Native" shapes are never shared. they are created here and destroyed in DereferenceShape().
541 private bool GetReferenceToNativeShape(BSPhysObject prim,
542 BSPhysicsShapeType shapeType, FixedShapeKey shapeKey,
543 ShapeDestructionCallback shapeCallback)
544 {
545 // release any previous shape
546 DereferenceShape(prim.PhysShape, shapeCallback);
547
548 BulletShape newShape = BuildPhysicalNativeShape(prim, shapeType, shapeKey);
549
550 // Don't need to do a 'ReferenceShape()' here because native shapes are not shared.
551 if (DDetail) DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}",
552 prim.LocalID, newShape, prim.Scale);
553
554 // native shapes are scaled by Bullet
555 prim.PhysShape = newShape;
556 return true;
557 }
558
559 private BulletShape BuildPhysicalNativeShape(BSPhysObject prim, BSPhysicsShapeType shapeType,
560 FixedShapeKey shapeKey)
561 {
562 BulletShape newShape;
563 // Need to make sure the passed shape information is for the native type.
564 ShapeData nativeShapeData = new ShapeData();
565 nativeShapeData.Type = shapeType;
566 nativeShapeData.ID = prim.LocalID;
567 nativeShapeData.Scale = prim.Scale;
568 nativeShapeData.Size = prim.Scale; // unneeded, I think.
569 nativeShapeData.MeshKey = (ulong)shapeKey;
570 nativeShapeData.HullKey = (ulong)shapeKey;
571
572 if (shapeType == BSPhysicsShapeType.SHAPE_CAPSULE)
573 {
574 231
575 newShape = PhysicsScene.PE.BuildCapsuleShape(PhysicsScene.World, 1f, 1f, prim.Scale); 232 PrimitiveBaseShape pbs = prim.BaseShape;
576 if (DDetail) DetailLog("{0},BSShapeCollection.BuildPhysicalNativeShape,capsule,scale={1}", prim.LocalID, prim.Scale); 233 // Use a simple, one section convex shape for prims that are probably convex (no cuts or twists)
577 } 234 if (BSParam.ShouldUseSingleConvexHullForPrims
578 else 235 && pbs != null
579 { 236 && !pbs.SculptEntry
580 // Native shapes are scaled in Bullet so set the scaling to the size 237 && PrimHasNoCuts(pbs)
581 newShape = PhysicsScene.PE.BuildNativeShape(PhysicsScene.World, nativeShapeData); 238 )
582 239 {
583 } 240 potentialHull = BSShapeConvexHull.GetReference(m_physicsScene, false /* forceRebuild */, prim);
584 if (!newShape.HasPhysicalShape) 241 }
585 { 242 // Use the GImpact shape if it is a prim that has some concaveness
586 PhysicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}", 243 if (potentialHull == null
587 LogHeader, prim.LocalID, shapeType); 244 && BSParam.ShouldUseGImpactShapeForPrims
588 } 245 && pbs != null
589 newShape.shapeKey = (System.UInt64)shapeKey; 246 && !pbs.SculptEntry
590 newShape.isNativeShape = true; 247 )
591 248 {
592 return newShape; 249 potentialHull = BSShapeGImpact.GetReference(m_physicsScene, false /* forceRebuild */, prim);
593 } 250 }
594 251 // If not any of the simple cases, just make a hull
595 // Builds a mesh shape in the physical world and updates prim.BSShape. 252 if (potentialHull == null)
596 // Dereferences previous shape in BSShape and adds a reference for this new shape. 253 {
597 // Returns 'true' of a mesh was actually built. Otherwise . 254 potentialHull = BSShapeHull.GetReference(m_physicsScene, false /*forceRebuild*/, prim);
598 // Called at taint-time! 255 }
599 private bool GetReferenceToMesh(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
600 {
601 BulletShape newShape = new BulletShape();
602
603 float lod;
604 System.UInt64 newMeshKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
605
606 // if this new shape is the same as last time, don't recreate the mesh
607 if (newMeshKey == prim.PhysShape.shapeKey && prim.PhysShape.type == BSPhysicsShapeType.SHAPE_MESH)
608 return false;
609
610 if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToMesh,create,oldKey={1},newKey={2},size={3},lod={4}",
611 prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newMeshKey.ToString("X"), prim.Size, lod);
612
613 // Since we're recreating new, get rid of the reference to the previous shape
614 DereferenceShape(prim.PhysShape, shapeCallback);
615
616 newShape = CreatePhysicalMesh(prim, newMeshKey, prim.BaseShape, prim.Size, lod);
617 // Take evasive action if the mesh was not constructed.
618 newShape = VerifyMeshCreated(newShape, prim);
619
620 ReferenceShape(newShape);
621
622 prim.PhysShape = newShape;
623
624 return true; // 'true' means a new shape has been added to this prim
625 }
626
627 private BulletShape CreatePhysicalMesh(BSPhysObject prim, System.UInt64 newMeshKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
628 {
629 BulletShape newShape = new BulletShape();
630 256
631 MeshDesc meshDesc; 257 // If the current shape is not what is on the prim at the moment, time to change.
632 if (Meshes.TryGetValue(newMeshKey, out meshDesc)) 258 if (!prim.PhysShape.HasPhysicalShape
633 { 259 || potentialHull.ShapeType != prim.PhysShape.ShapeType
634 // If the mesh has already been built just use it. 260 || potentialHull.physShapeInfo.shapeKey != prim.PhysShape.physShapeInfo.shapeKey)
635 newShape = meshDesc.shape.Clone(); 261 {
262 DereferenceExistingShape(prim, shapeCallback);
263 prim.PhysShape = potentialHull;
264 ret = true;
265 }
266 else
267 {
268 // The current shape on the prim is the correct one. We don't need the potential reference.
269 potentialHull.Dereference(m_physicsScene);
270 }
271 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,hull,shape={1}", prim.LocalID, prim.PhysShape);
636 } 272 }
637 else 273 else
638 { 274 {
639 IMesh meshData = PhysicsScene.mesher.CreateMesh(prim.PhysObjectName, pbs, size, lod, 275 // Non-physical objects should be just meshes.
640 true, 276 BSShape potentialMesh = BSShapeMesh.GetReference(m_physicsScene, false /*forceRebuild*/, prim);
641 false, // say it is not physical so a bounding box is not built 277 // If the current shape is not what is on the prim at the moment, time to change.
642 false, // do not cache the mesh and do not use previously built versions 278 if (!prim.PhysShape.HasPhysicalShape
643 false // It's NOT for ODE 279 || potentialMesh.ShapeType != prim.PhysShape.ShapeType
644 ); 280 || potentialMesh.physShapeInfo.shapeKey != prim.PhysShape.physShapeInfo.shapeKey)
645
646 if (meshData != null)
647 { 281 {
648 282 DereferenceExistingShape(prim, shapeCallback);
649 int[] indices = meshData.getIndexListAsInt(); 283 prim.PhysShape = potentialMesh;
650 int realIndicesIndex = indices.Length; 284 ret = true;
651 float[] verticesAsFloats = meshData.getVertexListAsFloat();
652
653 if (BSParam.ShouldRemoveZeroWidthTriangles)
654 {
655 // Remove degenerate triangles. These are triangles with two of the vertices
656 // are the same. This is complicated by the problem that vertices are not
657 // made unique in sculpties so we have to compare the values in the vertex.
658 realIndicesIndex = 0;
659 for (int tri = 0; tri < indices.Length; tri += 3)
660 {
661 // Compute displacements into vertex array for each vertex of the triangle
662 int v1 = indices[tri + 0] * 3;
663 int v2 = indices[tri + 1] * 3;
664 int v3 = indices[tri + 2] * 3;
665 // Check to see if any two of the vertices are the same
666 if (!( ( verticesAsFloats[v1 + 0] == verticesAsFloats[v2 + 0]
667 && verticesAsFloats[v1 + 1] == verticesAsFloats[v2 + 1]
668 && verticesAsFloats[v1 + 2] == verticesAsFloats[v2 + 2])
669 || ( verticesAsFloats[v2 + 0] == verticesAsFloats[v3 + 0]
670 && verticesAsFloats[v2 + 1] == verticesAsFloats[v3 + 1]
671 && verticesAsFloats[v2 + 2] == verticesAsFloats[v3 + 2])
672 || ( verticesAsFloats[v1 + 0] == verticesAsFloats[v3 + 0]
673 && verticesAsFloats[v1 + 1] == verticesAsFloats[v3 + 1]
674 && verticesAsFloats[v1 + 2] == verticesAsFloats[v3 + 2]) )
675 )
676 {
677 // None of the vertices of the triangles are the same. This is a good triangle;
678 indices[realIndicesIndex + 0] = indices[tri + 0];
679 indices[realIndicesIndex + 1] = indices[tri + 1];
680 indices[realIndicesIndex + 2] = indices[tri + 2];
681 realIndicesIndex += 3;
682 }
683 }
684 }
685 DetailLog("{0},BSShapeCollection.CreatePhysicalMesh,origTri={1},realTri={2},numVerts={3}",
686 BSScene.DetailLogZero, indices.Length / 3, realIndicesIndex / 3, verticesAsFloats.Length / 3);
687
688 if (realIndicesIndex != 0)
689 {
690 newShape = PhysicsScene.PE.CreateMeshShape(PhysicsScene.World,
691 realIndicesIndex, indices, verticesAsFloats.Length / 3, verticesAsFloats);
692 }
693 else
694 {
695 PhysicsScene.Logger.DebugFormat("{0} All mesh triangles degenerate. Prim {1} at {2} in {3}",
696 LogHeader, prim.PhysObjectName, prim.RawPosition, PhysicsScene.Name);
697 }
698 } 285 }
286 else
287 {
288 // We don't need this reference to the mesh that is already being using.
289 potentialMesh.Dereference(m_physicsScene);
290 }
291 if (DDetail) DetailLog("{0},BSShapeCollection.CreateGeom,mesh,shape={1}", prim.LocalID, prim.PhysShape);
699 } 292 }
700 newShape.shapeKey = newMeshKey; 293 return ret;
701
702 return newShape;
703 }
704
705 // See that hull shape exists in the physical world and update prim.BSShape.
706 // We could be creating the hull because scale changed or whatever.
707 // Return 'true' if a new hull was built. Otherwise, returning a shared hull instance.
708 private bool GetReferenceToHull(BSPhysObject prim, ShapeDestructionCallback shapeCallback)
709 {
710 BulletShape newShape;
711
712 float lod;
713 System.UInt64 newHullKey = ComputeShapeKey(prim.Size, prim.BaseShape, out lod);
714
715 // if the hull hasn't changed, don't rebuild it
716 if (newHullKey == prim.PhysShape.shapeKey && prim.PhysShape.type == BSPhysicsShapeType.SHAPE_HULL)
717 return false;
718
719 if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToHull,create,oldKey={1},newKey={2}",
720 prim.LocalID, prim.PhysShape.shapeKey.ToString("X"), newHullKey.ToString("X"));
721
722 // Remove usage of the previous shape.
723 DereferenceShape(prim.PhysShape, shapeCallback);
724
725 newShape = CreatePhysicalHull(prim.PhysObjectName, newHullKey, prim.BaseShape, prim.Size, lod);
726 // It might not have been created if we're waiting for an asset.
727 newShape = VerifyMeshCreated(newShape, prim);
728
729 ReferenceShape(newShape);
730
731 prim.PhysShape = newShape;
732 return true; // 'true' means a new shape has been added to this prim
733 } 294 }
734 295
735 List<ConvexResult> m_hulls; 296 // Track another user of a body.
736 private BulletShape CreatePhysicalHull(string objName, System.UInt64 newHullKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod) 297 // We presume the caller has allocated the body.
298 // Bodies only have one user so the body is just put into the world if not already there.
299 private void ReferenceBody(BulletBody body)
737 { 300 {
738 301 lock (m_collectionActivityLock)
739 BulletShape newShape = new BulletShape();
740 IntPtr hullPtr = IntPtr.Zero;
741
742 HullDesc hullDesc;
743 if (Hulls.TryGetValue(newHullKey, out hullDesc))
744 {
745 // If the hull shape already has been created, just use the one shared instance.
746 newShape = hullDesc.shape.Clone();
747 }
748 else
749 { 302 {
750 // Build a new hull in the physical world. 303 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceBody,newBody,body={1}", body.ID, body);
751 // Pass true for physicalness as this prevents the creation of bounding box which is not needed 304 if (!m_physicsScene.PE.IsInWorld(m_physicsScene.World, body))
752 IMesh meshData = PhysicsScene.mesher.CreateMesh(objName, pbs, size, lod, true, false, false, false);
753 if (meshData != null)
754 { 305 {
755 306 m_physicsScene.PE.AddObjectToWorld(m_physicsScene.World, body);
756 int[] indices = meshData.getIndexListAsInt(); 307 if (DDetail) DetailLog("{0},BSShapeCollection.ReferenceBody,addedToWorld,ref={1}", body.ID, body);
757 List<OMV.Vector3> vertices = meshData.getVertexList();
758
759 //format conversion from IMesh format to DecompDesc format
760 List<int> convIndices = new List<int>();
761 List<float3> convVertices = new List<float3>();
762 for (int ii = 0; ii < indices.GetLength(0); ii++)
763 {
764 convIndices.Add(indices[ii]);
765 }
766 foreach (OMV.Vector3 vv in vertices)
767 {
768 convVertices.Add(new float3(vv.X, vv.Y, vv.Z));
769 }
770
771 uint maxDepthSplit = (uint)BSParam.CSHullMaxDepthSplit;
772 if (BSParam.CSHullMaxDepthSplit != BSParam.CSHullMaxDepthSplitForSimpleShapes)
773 {
774 // Simple primitive shapes we know are convex so they are better implemented with
775 // fewer hulls.
776 // Check for simple shape (prim without cuts) and reduce split parameter if so.
777 if (PrimHasNoCuts(pbs))
778 {
779 maxDepthSplit = (uint)BSParam.CSHullMaxDepthSplitForSimpleShapes;
780 }
781 }
782
783 // setup and do convex hull conversion
784 m_hulls = new List<ConvexResult>();
785 DecompDesc dcomp = new DecompDesc();
786 dcomp.mIndices = convIndices;
787 dcomp.mVertices = convVertices;
788 dcomp.mDepth = maxDepthSplit;
789 dcomp.mCpercent = BSParam.CSHullConcavityThresholdPercent;
790 dcomp.mPpercent = BSParam.CSHullVolumeConservationThresholdPercent;
791 dcomp.mMaxVertices = (uint)BSParam.CSHullMaxVertices;
792 dcomp.mSkinWidth = BSParam.CSHullMaxSkinWidth;
793 ConvexBuilder convexBuilder = new ConvexBuilder(HullReturn);
794 // create the hull into the _hulls variable
795 convexBuilder.process(dcomp);
796
797 DetailLog("{0},BSShapeCollection.CreatePhysicalHull,key={1},inVert={2},inInd={3},split={4},hulls={5}",
798 BSScene.DetailLogZero, newHullKey, indices.GetLength(0), vertices.Count, maxDepthSplit, m_hulls.Count);
799
800 // Convert the vertices and indices for passing to unmanaged.
801 // The hull information is passed as a large floating point array.
802 // The format is:
803 // convHulls[0] = number of hulls
804 // convHulls[1] = number of vertices in first hull
805 // convHulls[2] = hull centroid X coordinate
806 // convHulls[3] = hull centroid Y coordinate
807 // convHulls[4] = hull centroid Z coordinate
808 // convHulls[5] = first hull vertex X
809 // convHulls[6] = first hull vertex Y
810 // convHulls[7] = first hull vertex Z
811 // convHulls[8] = second hull vertex X
812 // ...
813 // convHulls[n] = number of vertices in second hull
814 // convHulls[n+1] = second hull centroid X coordinate
815 // ...
816 //
817 // TODO: is is very inefficient. Someday change the convex hull generator to return
818 // data structures that do not need to be converted in order to pass to Bullet.
819 // And maybe put the values directly into pinned memory rather than marshaling.
820 int hullCount = m_hulls.Count;
821 int totalVertices = 1; // include one for the count of the hulls
822 foreach (ConvexResult cr in m_hulls)
823 {
824 totalVertices += 4; // add four for the vertex count and centroid
825 totalVertices += cr.HullIndices.Count * 3; // we pass just triangles
826 }
827 float[] convHulls = new float[totalVertices];
828
829 convHulls[0] = (float)hullCount;
830 int jj = 1;
831 foreach (ConvexResult cr in m_hulls)
832 {
833 // copy vertices for index access
834 float3[] verts = new float3[cr.HullVertices.Count];
835 int kk = 0;
836 foreach (float3 ff in cr.HullVertices)
837 {
838 verts[kk++] = ff;
839 }
840
841 // add to the array one hull's worth of data
842 convHulls[jj++] = cr.HullIndices.Count;
843 convHulls[jj++] = 0f; // centroid x,y,z
844 convHulls[jj++] = 0f;
845 convHulls[jj++] = 0f;
846 foreach (int ind in cr.HullIndices)
847 {
848 convHulls[jj++] = verts[ind].x;
849 convHulls[jj++] = verts[ind].y;
850 convHulls[jj++] = verts[ind].z;
851 }
852 }
853 // create the hull data structure in Bullet
854 newShape = PhysicsScene.PE.CreateHullShape(PhysicsScene.World, hullCount, convHulls);
855 } 308 }
856 } 309 }
857
858 newShape.shapeKey = newHullKey;
859
860 return newShape;
861 }
862
863 // Callback from convex hull creater with a newly created hull.
864 // Just add it to our collection of hulls for this shape.
865 private void HullReturn(ConvexResult result)
866 {
867 m_hulls.Add(result);
868 return;
869 } 310 }
870 311
871 // Compound shapes are always built from scratch. 312 // Release the usage of a body.
872 // This shouldn't be to bad since most of the parts will be meshes that had been built previously. 313 // Called when releasing use of a BSBody. BSShape is handled separately.
873 private bool GetReferenceToCompoundShape(BSPhysObject prim, ShapeDestructionCallback shapeCallback) 314 // Called in taint time.
874 { 315 public void DereferenceBody(BulletBody body, PhysicalDestructionCallback bodyCallback )
875 // Remove reference to the old shape
876 // Don't need to do this as the shape is freed when the new root shape is created below.
877 // DereferenceShape(prim.PhysShape, true, shapeCallback);
878
879 BulletShape cShape = PhysicsScene.PE.CreateCompoundShape(PhysicsScene.World, false);
880
881 // Create the shape for the root prim and add it to the compound shape. Cannot be a native shape.
882 CreateGeomMeshOrHull(prim, shapeCallback);
883 PhysicsScene.PE.AddChildShapeToCompoundShape(cShape, prim.PhysShape, OMV.Vector3.Zero, OMV.Quaternion.Identity);
884 if (DDetail) DetailLog("{0},BSShapeCollection.GetReferenceToCompoundShape,addRootPrim,compShape={1},rootShape={2}",
885 prim.LocalID, cShape, prim.PhysShape);
886
887 prim.PhysShape = cShape;
888
889 return true;
890 }
891
892 // Create a hash of all the shape parameters to be used as a key
893 // for this particular shape.
894 private System.UInt64 ComputeShapeKey(OMV.Vector3 size, PrimitiveBaseShape pbs, out float retLod)
895 {
896 // level of detail based on size and type of the object
897 float lod = BSParam.MeshLOD;
898
899 // prims with curvy internal cuts need higher lod
900 if (pbs.HollowShape == HollowShape.Circle)
901 lod = BSParam.MeshCircularLOD;
902
903 if (pbs.SculptEntry)
904 lod = BSParam.SculptLOD;
905
906 // Mega prims usually get more detail because one can interact with shape approximations at this size.
907 float maxAxis = Math.Max(size.X, Math.Max(size.Y, size.Z));
908 if (maxAxis > BSParam.MeshMegaPrimThreshold)
909 lod = BSParam.MeshMegaPrimLOD;
910
911 retLod = lod;
912 return pbs.GetMeshKey(size, lod);
913 }
914 // For those who don't want the LOD
915 private System.UInt64 ComputeShapeKey(OMV.Vector3 size, PrimitiveBaseShape pbs)
916 { 316 {
917 float lod; 317 if (!body.HasPhysicalBody)
918 return ComputeShapeKey(size, pbs, out lod); 318 return;
919 }
920 319
921 // The creation of a mesh or hull can fail if an underlying asset is not available. 320 m_physicsScene.AssertInTaintTime("BSShapeCollection.DereferenceBody");
922 // There are two cases: 1) the asset is not in the cache and it needs to be fetched;
923 // and 2) the asset cannot be converted (like failed decompression of JPEG2000s).
924 // The first case causes the asset to be fetched. The second case requires
925 // us to not loop forever.
926 // Called after creating a physical mesh or hull. If the physical shape was created,
927 // just return.
928 private BulletShape VerifyMeshCreated(BulletShape newShape, BSPhysObject prim)
929 {
930 // If the shape was successfully created, nothing more to do
931 if (newShape.HasPhysicalShape)
932 return newShape;
933 321
934 // VerifyMeshCreated is called after trying to create the mesh. If we think the asset had been 322 lock (m_collectionActivityLock)
935 // fetched but we end up here again, the meshing of the asset must have failed.
936 // Prevent trying to keep fetching the mesh by declaring failure.
937 if (prim.PrimAssetState == BSPhysObject.PrimAssetCondition.Fetched)
938 {
939 prim.PrimAssetState = BSPhysObject.PrimAssetCondition.Failed;
940 PhysicsScene.Logger.WarnFormat("{0} Fetched asset would not mesh. {1}, texture={2}",
941 LogHeader, prim.PhysObjectName, prim.BaseShape.SculptTexture);
942 }
943 else
944 { 323 {
945 // If this mesh has an underlying asset and we have not failed getting it before, fetch the asset 324 if (DDetail) DetailLog("{0},BSShapeCollection.DereferenceBody,DestroyingBody,body={1}", body.ID, body);
946 if (prim.BaseShape.SculptEntry 325 // If the caller needs to know the old body is going away, pass the event up.
947 && prim.PrimAssetState != BSPhysObject.PrimAssetCondition.Failed 326 if (bodyCallback != null)
948 && prim.PrimAssetState != BSPhysObject.PrimAssetCondition.Waiting 327 bodyCallback(body, null);
949 && prim.BaseShape.SculptTexture != OMV.UUID.Zero
950 )
951 {
952 DetailLog("{0},BSShapeCollection.VerifyMeshCreated,fetchAsset", prim.LocalID);
953 // Multiple requestors will know we're waiting for this asset
954 prim.PrimAssetState = BSPhysObject.PrimAssetCondition.Waiting;
955
956 BSPhysObject xprim = prim;
957 Util.FireAndForget(delegate
958 {
959 RequestAssetDelegate assetProvider = PhysicsScene.RequestAssetMethod;
960 if (assetProvider != null)
961 {
962 BSPhysObject yprim = xprim; // probably not necessary, but, just in case.
963 assetProvider(yprim.BaseShape.SculptTexture, delegate(AssetBase asset)
964 {
965 bool assetFound = false;
966 string mismatchIDs = String.Empty; // DEBUG DEBUG
967 if (asset != null && yprim.BaseShape.SculptEntry)
968 {
969 if (yprim.BaseShape.SculptTexture.ToString() == asset.ID)
970 {
971 yprim.BaseShape.SculptData = asset.Data;
972 // This will cause the prim to see that the filler shape is not the right
973 // one and try again to build the object.
974 // No race condition with the normal shape setting since the rebuild is at taint time.
975 yprim.ForceBodyShapeRebuild(false /* inTaintTime */);
976 assetFound = true;
977 }
978 else
979 {
980 mismatchIDs = yprim.BaseShape.SculptTexture.ToString() + "/" + asset.ID;
981 }
982 }
983 if (assetFound)
984 yprim.PrimAssetState = BSPhysObject.PrimAssetCondition.Fetched;
985 else
986 yprim.PrimAssetState = BSPhysObject.PrimAssetCondition.Failed;
987 DetailLog("{0},BSShapeCollection,fetchAssetCallback,found={1},isSculpt={2},ids={3}",
988 yprim.LocalID, assetFound, yprim.BaseShape.SculptEntry, mismatchIDs );
989 328
990 }); 329 // Removing an object not in the world is a NOOP
991 } 330 m_physicsScene.PE.RemoveObjectFromWorld(m_physicsScene.World, body);
992 else
993 {
994 xprim.PrimAssetState = BSPhysObject.PrimAssetCondition.Failed;
995 PhysicsScene.Logger.ErrorFormat("{0} Physical object requires asset but no asset provider. Name={1}",
996 LogHeader, PhysicsScene.Name);
997 }
998 });
999 }
1000 else
1001 {
1002 if (prim.PrimAssetState == BSPhysObject.PrimAssetCondition.Failed)
1003 {
1004 PhysicsScene.Logger.WarnFormat("{0} Mesh failed to fetch asset. obj={1}, texture={2}",
1005 LogHeader, prim.PhysObjectName, prim.BaseShape.SculptTexture);
1006 }
1007 }
1008 }
1009 331
1010 // While we wait for the mesh defining asset to be loaded, stick in a simple box for the object. 332 // Zero any reference to the shape so it is not freed when the body is deleted.
1011 BulletShape fillinShape = BuildPhysicalNativeShape(prim, BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX); 333 m_physicsScene.PE.SetCollisionShape(m_physicsScene.World, body, null);
1012 DetailLog("{0},BSShapeCollection.VerifyMeshCreated,boxTempShape", prim.LocalID);
1013 334
1014 return fillinShape; 335 m_physicsScene.PE.DestroyObject(m_physicsScene.World, body);
336 }
1015 } 337 }
1016 338
1017 // Create a body object in Bullet. 339 // Create a body object in Bullet.
1018 // Updates prim.BSBody with the information about the new body if one is created. 340 // Updates prim.BSBody with the information about the new body if one is created.
1019 // Returns 'true' if an object was actually created. 341 // Returns 'true' if an object was actually created.
1020 // Called at taint-time. 342 // Called at taint-time.
1021 private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletWorld sim, BodyDestructionCallback bodyCallback) 343 private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletWorld sim, PhysicalDestructionCallback bodyCallback)
1022 { 344 {
1023 bool ret = false; 345 bool ret = false;
1024 346
@@ -1029,7 +351,7 @@ public sealed class BSShapeCollection : IDisposable
1029 // If not a solid object, body is a GhostObject. Otherwise a RigidBody. 351 // If not a solid object, body is a GhostObject. Otherwise a RigidBody.
1030 if (!mustRebuild) 352 if (!mustRebuild)
1031 { 353 {
1032 CollisionObjectTypes bodyType = (CollisionObjectTypes)PhysicsScene.PE.GetBodyType(prim.PhysBody); 354 CollisionObjectTypes bodyType = (CollisionObjectTypes)m_physicsScene.PE.GetBodyType(prim.PhysBody);
1033 if (prim.IsSolid && bodyType != CollisionObjectTypes.CO_RIGID_BODY 355 if (prim.IsSolid && bodyType != CollisionObjectTypes.CO_RIGID_BODY
1034 || !prim.IsSolid && bodyType != CollisionObjectTypes.CO_GHOST_OBJECT) 356 || !prim.IsSolid && bodyType != CollisionObjectTypes.CO_GHOST_OBJECT)
1035 { 357 {
@@ -1047,12 +369,12 @@ public sealed class BSShapeCollection : IDisposable
1047 BulletBody aBody; 369 BulletBody aBody;
1048 if (prim.IsSolid) 370 if (prim.IsSolid)
1049 { 371 {
1050 aBody = PhysicsScene.PE.CreateBodyFromShape(sim, prim.PhysShape, prim.LocalID, prim.RawPosition, prim.RawOrientation); 372 aBody = m_physicsScene.PE.CreateBodyFromShape(sim, prim.PhysShape.physShapeInfo, prim.LocalID, prim.RawPosition, prim.RawOrientation);
1051 if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,mesh,body={1}", prim.LocalID, aBody); 373 if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,rigid,body={1}", prim.LocalID, aBody);
1052 } 374 }
1053 else 375 else
1054 { 376 {
1055 aBody = PhysicsScene.PE.CreateGhostFromShape(sim, prim.PhysShape, prim.LocalID, prim.RawPosition, prim.RawOrientation); 377 aBody = m_physicsScene.PE.CreateGhostFromShape(sim, prim.PhysShape.physShapeInfo, prim.LocalID, prim.RawPosition, prim.RawOrientation);
1056 if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,ghost,body={1}", prim.LocalID, aBody); 378 if (DDetail) DetailLog("{0},BSShapeCollection.CreateBody,ghost,body={1}", prim.LocalID, aBody);
1057 } 379 }
1058 380
@@ -1066,46 +388,10 @@ public sealed class BSShapeCollection : IDisposable
1066 return ret; 388 return ret;
1067 } 389 }
1068 390
1069 private bool TryGetMeshByPtr(BulletShape shape, out MeshDesc outDesc)
1070 {
1071 bool ret = false;
1072 MeshDesc foundDesc = new MeshDesc();
1073 foreach (MeshDesc md in Meshes.Values)
1074 {
1075 if (md.shape.ReferenceSame(shape))
1076 {
1077 foundDesc = md;
1078 ret = true;
1079 break;
1080 }
1081
1082 }
1083 outDesc = foundDesc;
1084 return ret;
1085 }
1086
1087 private bool TryGetHullByPtr(BulletShape shape, out HullDesc outDesc)
1088 {
1089 bool ret = false;
1090 HullDesc foundDesc = new HullDesc();
1091 foreach (HullDesc hd in Hulls.Values)
1092 {
1093 if (hd.shape.ReferenceSame(shape))
1094 {
1095 foundDesc = hd;
1096 ret = true;
1097 break;
1098 }
1099
1100 }
1101 outDesc = foundDesc;
1102 return ret;
1103 }
1104
1105 private void DetailLog(string msg, params Object[] args) 391 private void DetailLog(string msg, params Object[] args)
1106 { 392 {
1107 if (PhysicsScene.PhysicsLogging.Enabled) 393 if (m_physicsScene.PhysicsLogging.Enabled)
1108 PhysicsScene.DetailLog(msg, args); 394 m_physicsScene.DetailLog(msg, args);
1109 } 395 }
1110} 396}
1111} 397}
generated by cgit v1.1 at 2024-07-16 10:40:04 +0000