OgreInstanceBatch.h
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1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4  (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
6 
7 Copyright (c) 2000-2013 Torus Knot Software Ltd
8 
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
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13 copies of the Software, and to permit persons to whom the Software is
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17 all copies or substantial portions of the Software.
18 
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27 */
28 #ifndef __InstanceBatch_H__
29 #define __InstanceBatch_H__
30 
31 #include "OgrePrerequisites.h"
32 #include "OgreRenderOperation.h"
33 #include "OgreRenderable.h"
34 #include "OgreMovableObject.h"
35 #include "OgreMesh.h"
36 #include "OgreHeaderPrefix.h"
37 
38 namespace Ogre
39 {
89  {
90  public:
93  protected:
96 
98 
100 
103 
104  //InstancedEntities are all allocated at build time and kept as "unused"
105  //when they're requested, they're removed from there when requested,
106  //and put back again when they're no longer needed
107  //Note each InstancedEntity has a unique ID ranging from [0; mInstancesPerBatch)
110 
115 
120  bool mBoundsUpdated; //Set to false by derived classes that need it
122 
123  unsigned short mMaterialLodIndex;
124 
125  bool mDirtyAnimation; //Set to false at start of each _updateRenderQueue
126 
129 
133  mutable const Camera *mCachedCamera;
134 
137 
142 
143  virtual void setupVertices( const SubMesh* baseSubMesh ) = 0;
144  virtual void setupIndices( const SubMesh* baseSubMesh ) = 0;
145  virtual void createAllInstancedEntities(void);
146  virtual void deleteAllInstancedEntities(void);
147  virtual void deleteUnusedInstancedEntities(void);
149  virtual InstancedEntity* generateInstancedEntity(size_t num);
150 
155  void makeMatrixCameraRelative3x4( float *mat3x4, size_t numFloats );
156 
158  virtual bool checkSubMeshCompatibility( const SubMesh* baseSubMesh );
159 
160  void updateVisibility(void);
161 
163  void defragmentBatchNoCull( InstancedEntityVec &usedEntities, CustomParamsVec &usedParams );
164 
170  void defragmentBatchDoCull( InstancedEntityVec &usedEntities, CustomParamsVec &usedParams );
171 
172  public:
173  InstanceBatch( InstanceManager *creator, MeshPtr &meshReference, const MaterialPtr &material,
174  size_t instancesPerBatch, const Mesh::IndexMap *indexToBoneMap,
175  const String &batchName );
176  virtual ~InstanceBatch();
177 
178  MeshPtr& _getMeshRef() { return mMeshReference; }
179 
182  void _setInstancesPerBatch( size_t instancesPerBatch );
183 
184  const Mesh::IndexMap* _getIndexToBoneMap() const { return mIndexToBoneMap; }
185 
192  bool _supportsSkeletalAnimation() const { return mTechnSupportsSkeletal; }
193 
195  void _updateBounds(void);
196 
207  virtual size_t calculateMaxNumInstances( const SubMesh *baseSubMesh, uint16 flags ) const = 0;
208 
222  virtual RenderOperation build( const SubMesh* baseSubMesh );
223 
236  virtual void buildFrom( const SubMesh *baseSubMesh, const RenderOperation &renderOperation );
237 
238  const Ogre::MeshPtr& _getMeshReference(void) const { return mMeshReference; }
239 
243  bool isBatchFull(void) const { return mUnusedEntities.empty(); }
244 
247  bool isBatchUnused(void) const { return mUnusedEntities.size() == mInstancedEntities.size(); }
248 
252  void getInstancedEntitiesInUse( InstancedEntityVec &outEntities, CustomParamsVec &outParams );
253 
267  void _defragmentBatch( bool optimizeCulling, InstancedEntityVec &usedEntities,
268  CustomParamsVec &usedParams );
269 
275  void _defragmentBatchDiscard(void);
276 
280  virtual void _boundsDirty(void);
281 
295  virtual void setStaticAndUpdate( bool bStatic ) {}
296 
299  virtual bool isStatic() const { return false; }
300 
307  InstancedEntity* createInstancedEntity();
308 
315  void removeInstancedEntity( InstancedEntity *instancedEntity );
316 
320  virtual bool useBoneWorldMatrices() const { return true; }
321 
323  void _markTransformSharingDirty() { mTransformSharingDirty = true; }
324 
326  void _setCustomParam( InstancedEntity *instancedEntity, unsigned char idx, const Vector4 &newParam );
327 
329  const Vector4& _getCustomParam( InstancedEntity *instancedEntity, unsigned char idx );
330 
331  //Renderable overloads
333  const MaterialPtr& getMaterial(void) const { return mMaterial; }
335  void getRenderOperation( RenderOperation& op ) { op = mRenderOperation; }
336 
338  Real getSquaredViewDepth( const Camera* cam ) const;
340  const LightList& getLights( void ) const;
342  Technique* getTechnique(void) const;
343 
345  const String& getMovableType(void) const;
347  void _notifyCurrentCamera( Camera* cam );
349  const AxisAlignedBox& getBoundingBox(void) const;
351  Real getBoundingRadius(void) const;
352 
353  virtual void _updateRenderQueue(RenderQueue* queue);
354  void visitRenderables( Renderable::Visitor* visitor, bool debugRenderables = false );
355 
356  // resolve ambiguity of get/setUserAny due to inheriting from Renderable and MovableObject
359  };
360 } // namespace Ogre
361 
362 #include "OgreHeaderSuffix.h"
363 
364 #endif // __InstanceBatch_H__
OgreHeaderSuffix.h
Ogre::HashedVector< Light * >
Ogre::Mesh::IndexMap
vector< unsigned short >::type IndexMap
Definition: OgreMesh.h:108
Ogre::InstanceBatch::mRenderOperation
RenderOperation mRenderOperation
Definition: OgreInstanceBatch.h:94
Ogre::InstanceBatch::useBoneWorldMatrices
virtual bool useBoneWorldMatrices() const
Tells whether world bone matrices need to be calculated.
Definition: OgreInstanceBatch.h:320
Ogre::InstanceBatch::isBatchUnused
bool isBatchUnused(void) const
Returns true if it no instanced entity has been requested or all of them have been removed.
Definition: OgreInstanceBatch.h:247
Ogre
Definition: OgreAndroidLogListener.h:34
Ogre::InstanceBatch::mBoundsDirty
bool mBoundsDirty
Definition: OgreInstanceBatch.h:119
OgreMesh.h
Ogre::Camera
A viewpoint from which the scene will be rendered.
Definition: OgreCamera.h:86
Ogre::InstanceBatch::mIndexToBoneMap
const Mesh::IndexMap * mIndexToBoneMap
Definition: OgreInstanceBatch.h:102
Ogre::InstanceBatch::CustomParamsVec
vector< Vector4 >::type CustomParamsVec
Definition: OgreInstanceBatch.h:92
Ogre::InstanceManager
This is the main starting point for the new instancing system.
Definition: OgreInstanceManager.h:63
Ogre::uint16
unsigned short uint16
Definition: OgrePlatform.h:360
Ogre::MovableObject
Abstract class defining a movable object in a scene.
Definition: OgreMovableObject.h:60
Ogre::InstanceBatch::mCurrentCamera
Camera * mCurrentCamera
Definition: OgreInstanceBatch.h:121
Ogre::InstanceBatch::_supportsSkeletalAnimation
bool _supportsSkeletalAnimation() const
Returns true if this technique supports skeletal animation.
Definition: OgreInstanceBatch.h:192
Ogre::String
_StringBase String
Definition: OgrePrerequisites.h:439
Ogre::Technique
Class representing an approach to rendering this particular Material.
Definition: OgreTechnique.h:53
Ogre::InstanceBatch::mDirtyAnimation
bool mDirtyAnimation
Definition: OgreInstanceBatch.h:125
Ogre::InstanceBatch::mRemoveOwnVertexData
bool mRemoveOwnVertexData
When true remove the memory of the VertexData we've created because no one else will.
Definition: OgreInstanceBatch.h:139
Ogre::Renderable::getUserAny
virtual const OGRE_DEPRECATED Any & getUserAny(void) const
Definition: OgreRenderable.h:349
OgreRenderOperation.h
OgreHeaderPrefix.h
Ogre::InstanceBatch::mCreator
InstanceManager * mCreator
Definition: OgreInstanceBatch.h:97
OgrePrerequisites.h
Ogre::SubMesh
Defines a part of a complete mesh.
Definition: OgreSubMesh.h:62
Ogre::InstanceBatch::mUnusedEntities
InstancedEntityVec mUnusedEntities
Definition: OgreInstanceBatch.h:109
Ogre::InstanceBatch::mBoundsUpdated
bool mBoundsUpdated
Definition: OgreInstanceBatch.h:120
Ogre::InstanceBatch::mInstancedEntities
InstancedEntityVec mInstancedEntities
Definition: OgreInstanceBatch.h:108
Ogre::InstanceBatch::_getMeshReference
const Ogre::MeshPtr & _getMeshReference(void) const
Definition: OgreInstanceBatch.h:238
Ogre::InstanceBatch::_getMeshRef
MeshPtr & _getMeshRef()
Definition: OgreInstanceBatch.h:178
Ogre::AxisAlignedBox
A 3D box aligned with the x/y/z axes.
Definition: OgreAxisAlignedBox.h:54
_OgreExport
#define _OgreExport
Definition: OgrePlatform.h:257
Ogre::InstanceBatch::isBatchFull
bool isBatchFull(void) const
Definition: OgreInstanceBatch.h:243
Ogre::InstanceBatch::mMeshReference
MeshPtr mMeshReference
Definition: OgreInstanceBatch.h:101
Ogre::InstanceBatch::mMaterialLodIndex
unsigned short mMaterialLodIndex
Definition: OgreInstanceBatch.h:123
Ogre::InstanceBatch::setStaticAndUpdate
virtual void setStaticAndUpdate(bool bStatic)
Tells this batch to stop updating animations, positions, rotations, and display all it's active insta...
Definition: OgreInstanceBatch.h:295
Ogre::InstanceBatch::mMaterial
MaterialPtr mMaterial
Definition: OgreInstanceBatch.h:99
Ogre::InstanceBatch::mTechnSupportsSkeletal
bool mTechnSupportsSkeletal
False if a technique doesn't support skeletal animation.
Definition: OgreInstanceBatch.h:128
Ogre::InstanceBatch::getRenderOperation
void getRenderOperation(RenderOperation &op)
Definition: OgreInstanceBatch.h:335
Ogre::SharedPtr< Material >
Ogre::InstanceBatch::mBoundingRadius
Real mBoundingRadius
Definition: OgreInstanceBatch.h:118
Ogre::InstanceBatch::InstancedEntityVec
vector< InstancedEntity * >::type InstancedEntityVec
Definition: OgreInstanceBatch.h:91
OgreRenderable.h
OgreMovableObject.h
Ogre::InstanceBatch::getMaterial
const MaterialPtr & getMaterial(void) const
Definition: OgreInstanceBatch.h:333
Ogre::InstanceBatch::mInstancesPerBatch
size_t mInstancesPerBatch
Definition: OgreInstanceBatch.h:95
Ogre::Vector4
4-dimensional homogeneous vector.
Definition: OgreVector4.h:45
Ogre::InstanceBatch::mRemoveOwnIndexData
bool mRemoveOwnIndexData
When true remove the memory of the IndexData we've created because no one else will.
Definition: OgreInstanceBatch.h:141
Ogre::Renderable::setUserAny
virtual OGRE_DEPRECATED void setUserAny(const Any &anything)
Definition: OgreRenderable.h:344
Ogre::Renderable::Visitor
Visitor object that can be used to iterate over a collection of Renderable instances abstractly.
Definition: OgreRenderable.h:377
Ogre::InstanceBatch::mCachedCamera
const Camera * mCachedCamera
The camera for which the cached distance is valid.
Definition: OgreInstanceBatch.h:133
Ogre::Renderable
Abstract class defining the interface all renderable objects must implement.
Definition: OgreRenderable.h:63
Ogre::Real
float Real
Software floating point type.
Definition: OgrePrerequisites.h:70
Ogre::InstanceBatch
InstanceBatch forms part of the new Instancing system This is an abstract class that must be derived ...
Definition: OgreInstanceBatch.h:88
Ogre::InstanceBatch::_getIndexToBoneMap
const Mesh::IndexMap * _getIndexToBoneMap() const
Definition: OgreInstanceBatch.h:184
Ogre::InstanceBatch::mCustomParams
CustomParamsVec mCustomParams
Definition: OgreInstanceBatch.h:114
Ogre::InstanceBatch::mCachedCameraDist
Real mCachedCameraDist
Cached distance to last camera for getSquaredViewDepth.
Definition: OgreInstanceBatch.h:131
Ogre::vector
Definition: OgrePrerequisites.h:491
Ogre::InstanceBatch::isStatic
virtual bool isStatic() const
Returns true if this batch was set as static.
Definition: OgreInstanceBatch.h:299
Ogre::InstanceBatch::mTransformSharingDirty
bool mTransformSharingDirty
Tells that the list of entity instances with shared transforms has changed.
Definition: OgreInstanceBatch.h:136
Ogre::InstancedEntity
Definition: OgreInstancedEntity.h:77
Ogre::InstanceBatch::mFullBoundingBox
AxisAlignedBox mFullBoundingBox
This bbox contains all (visible) instanced entities.
Definition: OgreInstanceBatch.h:117
Ogre::InstanceBatch::_markTransformSharingDirty
void _markTransformSharingDirty()
Tells that the list of entity instances with shared transforms has changed.
Definition: OgreInstanceBatch.h:323
Ogre::RenderOperation
'New' rendering operation using vertex buffers.
Definition: OgreRenderOperation.h:45
Ogre::RenderQueue
Class to manage the scene object rendering queue.
Definition: OgreRenderQueue.h:92

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