AtlasGeomChunk Class Reference [Atlas Resource System]

#include <atlasGeomChunk.h>

Inheritance diagram for AtlasGeomChunk:

Inheritance graph

[legend]List of all members.

Detailed Description

Atlas chunk subclass for geometry.

Collision

We optionally store collision information for this chunk's geometry.

void generateCollision ()

Helper function to update our collision structures for this chunk.

U32 mColTreeDepth

ColNode * mColTree

The linearized quadtree for our collision info.

Point3F * mColGeom

U16 * mColIndices

U16 * mColIndicesOffsets

U16 * mColIndicesBuffer

U32 mColOffsetCount

U32 mColIndexCount

Static Statistics

We track some statistics about the file IO we are doing.

static void dumpIOStatistics ()

static U32 smIndexBytesWritten

static U32 smVertexBytesWritten

static U32 smCollisionBytesWritten

static U32 smTotalBytesWritten

static U32 smChunksWritten

Public Types

typedef AtlasChunk Parent

Public Member Functions

AtlasGeomChunk ()

virtual ~AtlasGeomChunk ()

virtual void write (Stream *s)

Serialize this chunk to a stream.

virtual void read (Stream *s)

Deserialize from a stream.

void generate (AtlasChunk *children[4])

Given four children, (re)generate the data for this one.

virtual U32 getHeadSentinel ()

virtual U32 getTailSentinel ()

virtual void process ()

Once the chunk has been loaded (in another thread), this is called in the main thread to prepare any complex resources.

void render ()

void calculatePoints (const Point3F &camPos, Point3F &outNearPos, Point3F &outFarPos, Point2F &outNearTC, Point2F &outFarTC)

Calculate some useful information about our near/far points, used primarily for clipmaps.

AtlasDiscreteMesh * copyToDiscreteMesh ()

Copy ourselves out to a discrete mesh for processing.

void copyFromDiscreteMesh (AtlasDiscreteMesh *adm)

Update ourselves from a discrete mesh.

AtlasGeomChunk * generateCopy (S32 reformat=-1)

Box3F getBounds ()

bool buildCollisionInfo (const Box3F &box, Convex *c, AbstractPolyList *poly, AtlasInstance *object)

void registerConvex (const U16 offset, Convex *convex, AtlasInstance *object, const Box3F &queryBox)

Public Attributes

Convex mConvexList

Raw data

Raw data buffers, which are loaded directly from the file. They require no additional processing; once loaded they are OK to use.

U32 mSkirtSkipCount

Number of indices used for rendering "fake" geometry - ie, skirts, which are present solely to help hide LOD changes.

U32 mIndexCount

U16 * mIndex

U32 mVertCount

GFXAtlasVert2 * mVert

Box3F mBounds

Bounds of this chunk; duplicated in stub so we can get to it w/o paging.

RectF mTCBounds

Bounding box for this chunk's TC's.

Resource Handles

These are only instated when process() is called.

GFXVertexBufferHandle< GFXAtlasVert2 > mVB

GFXPrimitiveBufferHandle mPB

Classes

struct ColNode

A quadtree of ColNodes lets us do a quick broad filter against collision queries and efficiently reduce the number of triangles we have to individually check. More...

Member Typedef Documentation

typedef AtlasChunk AtlasGeomChunk::Parent

Constructor & Destructor Documentation

AtlasGeomChunk::AtlasGeomChunk ( )

virtual AtlasGeomChunk::~AtlasGeomChunk ( ) [virtual]

Member Function Documentation

void AtlasGeomChunk::generateCollision ( )

Helper function to update our collision structures for this chunk.

virtual void AtlasGeomChunk::write ( Stream * s ) [virtual]

Serialize this chunk to a stream.

See also:: You probably want to use prepareDeferredWrite()

Reimplemented from AtlasChunk.

virtual void AtlasGeomChunk::read ( Stream * s ) [virtual]

Deserialize from a stream.

See also:: You probably want to use readFromStream()

Reimplemented from AtlasChunk.

void AtlasGeomChunk::generate ( AtlasChunk * children[4] ) [virtual]

Given four children, (re)generate the data for this one.

Their order starts at topleft, clockwise, 0123.

Reimplemented from AtlasChunk.

virtual U32 AtlasGeomChunk::getHeadSentinel ( ) [virtual]

Reimplemented from AtlasChunk.

virtual U32 AtlasGeomChunk::getTailSentinel ( ) [virtual]

Reimplemented from AtlasChunk.

virtual void AtlasGeomChunk::process ( ) [virtual]

Once the chunk has been loaded (in another thread), this is called in the main thread to prepare any complex resources.

(For instance, a texture or VB, that depend on access to GFX to initialize.)

Reimplemented from AtlasChunk.

void AtlasGeomChunk::render ( )

void AtlasGeomChunk::calculatePoints	(	const Point3F &	camPos,
		Point3F &	outNearPos,
		Point3F &	outFarPos,
		Point2F &	outNearTC,
		Point2F &	outFarTC
	)

Calculate some useful information about our near/far points, used primarily for clipmaps.

AtlasDiscreteMesh* AtlasGeomChunk::copyToDiscreteMesh ( )

Copy ourselves out to a discrete mesh for processing.

void AtlasGeomChunk::copyFromDiscreteMesh ( AtlasDiscreteMesh * adm )

Update ourselves from a discrete mesh.

AtlasGeomChunk* AtlasGeomChunk::generateCopy ( S32 reformat = -1 )

Box3F AtlasGeomChunk::getBounds ( )

bool AtlasGeomChunk::buildCollisionInfo	(	const Box3F &	box,
		Convex *	c,
		AbstractPolyList *	poly,
		AtlasInstance *	object
	)

void AtlasGeomChunk::registerConvex	(	const U16	offset,
		Convex *	convex,
		AtlasInstance *	object,
		const Box3F &	queryBox
	)

static void AtlasGeomChunk::dumpIOStatistics ( ) [static]

Member Data Documentation

U32 AtlasGeomChunk::mSkirtSkipCount

Number of indices used for rendering "fake" geometry - ie, skirts, which are present solely to help hide LOD changes.

They should be discarded when generating new LOD levels and so forth.

"Fake" geometry always lives at the end of the index buffer.

Draw this much less to not draw skirts.

U32 AtlasGeomChunk::mIndexCount

U16* AtlasGeomChunk::mIndex

U32 AtlasGeomChunk::mVertCount

GFXAtlasVert2* AtlasGeomChunk::mVert

Box3F AtlasGeomChunk::mBounds

Bounds of this chunk; duplicated in stub so we can get to it w/o paging.

RectF AtlasGeomChunk::mTCBounds

Bounding box for this chunk's TC's.

GFXVertexBufferHandle<GFXAtlasVert2> AtlasGeomChunk::mVB

GFXPrimitiveBufferHandle AtlasGeomChunk::mPB

U32 AtlasGeomChunk::mColTreeDepth

ColNode* AtlasGeomChunk::mColTree

The linearized quadtree for our collision info.

If NULL, there isn't any collision info.

Point3F* AtlasGeomChunk::mColGeom

U16* AtlasGeomChunk::mColIndices

U16* AtlasGeomChunk::mColIndicesOffsets

U16* AtlasGeomChunk::mColIndicesBuffer

U32 AtlasGeomChunk::mColOffsetCount

U32 AtlasGeomChunk::mColIndexCount

Convex AtlasGeomChunk::mConvexList

U32 AtlasGeomChunk::smIndexBytesWritten [static]

U32 AtlasGeomChunk::smVertexBytesWritten [static]

U32 AtlasGeomChunk::smCollisionBytesWritten [static]

U32 AtlasGeomChunk::smTotalBytesWritten [static]

U32 AtlasGeomChunk::smChunksWritten [static]