Sirikata::Mesh Namespace Reference

Classes
struct	Billboard
class	CompositeFilter
	A CompositeFilter is essentially a pipeline of other filters. More...
class	FilterData
	FilterData is the input and output of a Filter. More...
class	Filter
class	FilterFactory
struct	SkinController
	Represents a skinned animation. More...
struct	SubMeshGeometry
struct	GeometryInstance
struct	LightInstance
struct	MaterialEffectInfo
struct	InstanceSkinAnimation
struct	TransformationKeyFrames
	Represents a series of key frames. More...
struct	Node
struct	ProgressiveMipmapLevel
struct	ProgressiveMipmapArchive
struct	ProgressiveData
struct	Meshdata
class	MeshSimplifier
class	Visual
	Base class for visual objects that are passed through the system. More...
class	CenterFilter
class	ComputeBoundsFilter
class	ComputeNormalsFilter
	For meshes that don't already specify them, fills in normals computed based on winding order. More...
class	DeduplicationFilter
class	LoadFilter
class	PrintFilter
class	SaveFilter
class	SingleMaterialGeometryFilter
	Splits any SubMeshGeometries (and corresponding GeometryInstances) into multiple parts, such that each SubMeshGeometry only has a single material (and the GeometryInstance has only 1 entry in its MaterialBindingMap). More...
class	SquashInstancedGeometryFilter
	Takes all instanced geometry in a mesh and squashes it to as few SubMeshGeometry/InstanceGeometries as possible. More...
class	SquashMaterialsFilter
class	SquashPrimitivesFilter
class	TransformFilter
class	TriangulateFilter
	TriangulateFilter converts non-triangulated meshes, e.g. More...
class	CompressTexturesFilter
class	TextureAtlasFilter
class	IndexedFaceContainer
class	FaceContainer
class	GeomContainer
class	GeomPairContainer
Typedefs
typedef std::tr1::shared_ptr < Billboard >	BillboardPtr
typedef std::tr1::weak_ptr < Billboard >	BillboardWPtr
typedef std::tr1::shared_ptr < const FilterData >	FilterDataPtr
typedef std::tr1::shared_ptr < FilterData >	MutableFilterDataPtr
typedef std::tr1::shared_ptr < Filter >	FilterPtr
typedef int32	NodeIndex
typedef std::vector< NodeIndex >	NodeIndexList
typedef std::vector< LightInfo >	LightInfoList
typedef std::vector< std::string >	TextureList
typedef std::tr1::shared_ptr < Meshdata >	MeshdataPtr
typedef std::tr1::weak_ptr < Meshdata >	MeshdataWPtr
typedef std::vector < SkinController >	SkinControllerList
typedef std::vector < SubMeshGeometry >	SubMeshGeometryList
typedef std::vector < GeometryInstance >	GeometryInstanceList
typedef std::vector < LightInstance >	LightInstanceList
typedef std::vector < MaterialEffectInfo >	MaterialEffectInfoList
typedef std::vector< Node >	NodeList
typedef std::map< uint32, ProgressiveMipmapLevel >	ProgressiveMipmaps
typedef std::map< std::string, ProgressiveMipmapArchive >	ProgressiveMipmapMap
typedef std::tr1::shared_ptr < ProgressiveData >	ProgressiveDataPtr
typedef std::tr1::shared_ptr < Visual >	VisualPtr
typedef std::tr1::weak_ptr < Visual >	VisualWPtr
Functions
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (VisualPtr visual, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the visual.
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (VisualPtr visual, const Matrix4x4f &xform, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the visual when trasnformed by xform.
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (MeshdataPtr mesh, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the mesh.
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (MeshdataPtr mesh, const Matrix4x4f &xform, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the mesh when trasnformed by xform.
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (BillboardPtr billboard, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the billboard.
SIRIKATA_MESH_FUNCTION_EXPORT void	ComputeBounds (BillboardPtr billboard, const Matrix4x4f &xform, BoundingBox3f3f *bbox=NULL, double *rad=NULL)
	Compute the bounds of the mesh when trasnformed by xform.
SIRIKATA_MESH_FUNCTION_EXPORT bool	Raytrace (VisualPtr vis, const Matrix4x4f &vis_xform, const Vector3f &ray_start, const Vector3f &ray_dir, float32 *t_out, Vector3f *hit_out)
	Traces a ray an returns information about the first point it hits on an the mesh.
SIRIKATA_MESH_FUNCTION_EXPORT bool	RaytraceType (MeshdataPtr vis, const Matrix4x4f &vis_xform, const Vector3f &ray_start, const Vector3f &ray_dir, float32 *t_out, Vector3f *hit_out)
SIRIKATA_MESH_FUNCTION_EXPORT bool	RaytraceType (BillboardPtr vis, const Matrix4x4f &vis_xform, const Vector3f &ray_start, const Vector3f &ray_dir, float32 *t_out, Vector3f *hit_out)
Filter *	ReduceDrawCalls (const String &args)
bool	comp (Vector3f point1, Vector3f point2)
Filter *	AtlasAndReduceDrawCalls (const String &args)
bool	custom_isnan (double data)
bool	optimize (Matrix4x4d &Q, const Vector3f &v11, const Vector3f &v21, Vector3f &best)
void	computeCosts (Mesh::MeshdataPtr agg_mesh, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, Matrix4x4d > > &submeshPositionQs, std::set< GeomPairContainer > &vertexPairs, std::tr1::unordered_map< GeomPairContainer, float64, GeomPairContainer::Hasher > &pairPriorities, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::tr1::unordered_set< uint32 > > > &submeshNeighborVertices, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::vector< uint32 > > > &vertexToFacesMap, std::tr1::unordered_map< GeomPairContainer, uint32, GeomPairContainer::Hasher > &pairFrequency)
uint32	findMappedVertex (std::tr1::unordered_map< int, int > &vertexMapping, uint32 idx)
void	computeCosts (Mesh::MeshdataPtr agg_mesh, uint32 geomIdx, uint32 sourcePositionIdx, uint32 targetPositionIdx, std::tr1::unordered_map< int, int > &vertexMapping, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, Matrix4x4d > > &submeshPositionQs, std::set< GeomPairContainer > &vertexPairs, std::tr1::unordered_map< GeomPairContainer, float64, GeomPairContainer::Hasher > &pairPriorities, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::tr1::unordered_set< uint32 > > > &submeshNeighborVertices, std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::vector< uint32 > > > &vertexToFacesMap, std::tr1::unordered_map< GeomPairContainer, uint32, GeomPairContainer::Hasher > &pairFrequency)
bool	RaytraceTriangle (const Vector3f &v1, const Vector3f &v2, const Vector3f &v3, const Vector3f &normal, const Vector3f &ray_start, const Vector3f &ray_dir, bool positive_side, bool negative_side, float32 *t_out)
	Raytraces a single triangle.
bool	RaytraceSphere (const Vector3f &center, float32 radius, const Vector3f &ray_start, const Vector3f &ray_dir, bool discard_inside, float32 *t_out)
	Raytraces a sphere.
bool	RaytraceTriangle (const Vector3f &v1, const Vector3f &v2, const Vector3f &v3, const Vector3f &ray_start, const Vector3f &ray_dir, float32 *t_out)
	Raytraces a single triangle.
bool	RaytraceSphere (const Vector3f &center, float32 radius, const Vector3f &ray_start, const Vector3f &ray_dir, float32 *t_out)
	Raytraces a sphere.
Variables
SIRIKATA_MESH_EXPORT NodeIndex	NullNodeIndex = -1

---

Typedef Documentation

typedef std::tr1::shared_ptr<Billboard> Sirikata::Mesh::BillboardPtr

typedef std::tr1::weak_ptr<Billboard> Sirikata::Mesh::BillboardWPtr

typedef std::tr1::shared_ptr<const FilterData> Sirikata::Mesh::FilterDataPtr

typedef std::tr1::shared_ptr<Filter> Sirikata::Mesh::FilterPtr

typedef std::vector<GeometryInstance> Sirikata::Mesh::GeometryInstanceList

typedef std::vector<LightInfo> Sirikata::Mesh::LightInfoList

typedef std::vector<LightInstance> Sirikata::Mesh::LightInstanceList

typedef std::vector<MaterialEffectInfo> Sirikata::Mesh::MaterialEffectInfoList

typedef std::tr1::shared_ptr<Meshdata> Sirikata::Mesh::MeshdataPtr

typedef std::tr1::weak_ptr<Meshdata> Sirikata::Mesh::MeshdataWPtr

typedef std::tr1::shared_ptr<FilterData> Sirikata::Mesh::MutableFilterDataPtr

typedef int32 Sirikata::Mesh::NodeIndex

typedef std::vector<NodeIndex> Sirikata::Mesh::NodeIndexList

typedef std::vector<Node> Sirikata::Mesh::NodeList

typedef std::tr1::shared_ptr<ProgressiveData> Sirikata::Mesh::ProgressiveDataPtr

typedef std::map<std::string, ProgressiveMipmapArchive> Sirikata::Mesh::ProgressiveMipmapMap

typedef std::map<uint32, ProgressiveMipmapLevel> Sirikata::Mesh::ProgressiveMipmaps

typedef std::vector<SkinController> Sirikata::Mesh::SkinControllerList

typedef std::vector<SubMeshGeometry> Sirikata::Mesh::SubMeshGeometryList

typedef std::vector<std::string> Sirikata::Mesh::TextureList

typedef std::tr1::shared_ptr<Visual> Sirikata::Mesh::VisualPtr

typedef std::tr1::weak_ptr<Visual> Sirikata::Mesh::VisualWPtr

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Function Documentation

Filter* Sirikata::Mesh::AtlasAndReduceDrawCalls

(

const String &

args

)

Referenced by init().

bool Sirikata::Mesh::comp	(	Vector3f	point1,
		Vector3f	point2
	)

Referenced by Sirikata::Mesh::DeduplicationFilter::apply().

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	VisualPtr	visual,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the visual.

Referenced by Sirikata::Mesh::ComputeBoundsFilter::apply(), ComputeBounds(), Sirikata::BulletObject::computeCollisionShape(), Sirikata::AggregateManager::generateAggregateMeshAsync(), Sirikata::Graphics::Entity::loadMesh(), Sirikata::JS::JSPositionListener::meshBounds(), Sirikata::JS::JSPositionListener::raytrace(), and Sirikata::JS::JSPositionListener::untransformedMeshBounds().

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	MeshdataPtr	mesh,
		const Matrix4x4f &	xform,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the mesh when trasnformed by xform.

The bounding box is computed *after* transforming the mesh, so it is tighter than computing the bounding box of the transformed original bounding box.

References Sirikata::Mesh::GeometryInstance::computeTransformedBounds(), and Sirikata::Mesh::Meshdata::GeometryInstanceIterator::next().

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	VisualPtr	visual,
		const Matrix4x4f &	xform,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the visual when trasnformed by xform.

The bounding box is computed *after* transforming the visual, so it is tighter than computing the bounding box of the transformed original bounding box.

References ComputeBounds().

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	BillboardPtr	billboard,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the billboard.

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	MeshdataPtr	mesh,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the mesh.

References Sirikata::Mesh::GeometryInstance::computeTransformedBounds(), and Sirikata::Mesh::Meshdata::GeometryInstanceIterator::next().

void SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::ComputeBounds	(	BillboardPtr	billboard,
		const Matrix4x4f &	xform,
		BoundingBox3f3f *	bbox = NULL,
		double *	rad = NULL
	)

Compute the bounds of the mesh when trasnformed by xform.

The bounding box is computed *after* transforming the mesh, so it is tighter than computing the bounding box of the transformed original bounding box.

void Sirikata::Mesh::computeCosts	(	Mesh::MeshdataPtr	agg_mesh,
		uint32	geomIdx,
		uint32	sourcePositionIdx,
		uint32	targetPositionIdx,
		std::tr1::unordered_map< int, int > &	vertexMapping,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, Matrix4x4d > > &	submeshPositionQs,
		std::set< GeomPairContainer > &	vertexPairs,
		std::tr1::unordered_map< GeomPairContainer, float64, GeomPairContainer::Hasher > &	pairPriorities,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::tr1::unordered_set< uint32 > > > &	submeshNeighborVertices,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::vector< uint32 > > > &	vertexToFacesMap,
		std::tr1::unordered_map< GeomPairContainer, uint32, GeomPairContainer::Hasher > &	pairFrequency
	)

References findMappedVertex(), Sirikata::Mesh::GeomPairContainer::mCost, Sirikata::Mesh::GeomPairContainer::mReplacementVector, optimize(), position, and Sirikata::Mesh::SubMeshGeometry::positions.

void Sirikata::Mesh::computeCosts	(	Mesh::MeshdataPtr	agg_mesh,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, Matrix4x4d > > &	submeshPositionQs,
		std::set< GeomPairContainer > &	vertexPairs,
		std::tr1::unordered_map< GeomPairContainer, float64, GeomPairContainer::Hasher > &	pairPriorities,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::tr1::unordered_set< uint32 > > > &	submeshNeighborVertices,
		std::tr1::unordered_map< uint32, std::tr1::unordered_map< uint32, std::vector< uint32 > > > &	vertexToFacesMap,
		std::tr1::unordered_map< GeomPairContainer, uint32, GeomPairContainer::Hasher > &	pairFrequency
	)

References optimize(), position, and Sirikata::Mesh::SubMeshGeometry::positions.

Referenced by Sirikata::Mesh::MeshSimplifier::simplify().

bool Sirikata::Mesh::custom_isnan

(

double

data

)

uint32 Sirikata::Mesh::findMappedVertex	(	std::tr1::unordered_map< int, int > &	vertexMapping,
		uint32	idx
	)		[inline]

Referenced by computeCosts(), and Sirikata::Mesh::MeshSimplifier::simplify().

bool Sirikata::Mesh::optimize	(	Matrix4x4d &	Q,
		const Vector3f &	v11,
		const Vector3f &	v21,
		Vector3f &	best
	)

First compute cost of contracting to endpoint

Referenced by computeCosts().

bool SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::Raytrace	(	VisualPtr	vis,
		const Matrix4x4f &	vis_xform,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		float32 *	t_out,
		Vector3f *	hit_out
	)

Traces a ray an returns information about the first point it hits on an the mesh.

Ray tracing is performed in mesh space, so if you want to perform the operation in world space, you need to transform the ray into object space, run the raytrace, and transform the results back.

Parameters:

vis	the mesh to test the ray against vis_xform transformation to apply to the mesh
ray_start	the starting position of the ray to trace
ray_dir	the direction of the ray to trace
t_out	the parametric value for the collision, in terms of ray_start and ray_dir
hit_out	the point of collision, if one was found

Returns:

true if a collision was found, false otherwise

References RaytraceType().

Referenced by Sirikata::JS::JSPositionListener::raytrace().

bool Sirikata::Mesh::RaytraceSphere	(	const Vector3f &	center,
		float32	radius,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		bool	discard_inside,
		float32 *	t_out
	)

Raytraces a sphere.

Assumes that t_out is initialized and will only update output values and return true if the hit is at t < t_orig.

Parameters:

center	The center position of the sphere
radius	The radius of the sphere
ray_start	the starting position of the ray to trace
ray_dir	the direction of the ray to trace
discard_inside	discard hits that start from inside the sphere
t_out	the point of the collision, if one was found
returns	true if the sphere was hit and it was before the existing hit

Referenced by RaytraceSphere(), and RaytraceType().

bool Sirikata::Mesh::RaytraceSphere	(	const Vector3f &	center,
		float32	radius,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		float32 *	t_out
	)

Raytraces a sphere.

Assumes that t_out is initialized and will only update output values and return true if the hit is at t < t_orig.

Parameters:

center	The center position of the sphere
radius	The radius of the sphere
ray_start	the starting position of the ray to trace
ray_dir	the direction of the ray to trace
t_out	the point of the collision, if one was found
returns	true if the sphere was hit and it was before the existing hit

References RaytraceSphere().

bool Sirikata::Mesh::RaytraceTriangle	(	const Vector3f &	v1,
		const Vector3f &	v2,
		const Vector3f &	v3,
		const Vector3f &	normal,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		bool	positive_side,
		bool	negative_side,
		float32 *	t_out
	)

Raytraces a single triangle.

Assumes that t_out is initialized and will only update output values and return true if the hit is at t < t_orig.

Parameters:

v1	First vertex of triangle
v2	Second vertex of triangle
v3	Third vertex of triangle
ray_start	the starting position of the ray to trace
ray_dir	the direction of the ray to trace
normal	the normal for this triangle
positive_side	use collisions with the positive side of the triangle
negative_side	use collisions with the positive side of the triangle
t_out	the point of the collision, if one was found
returns	true if the triangle was hit and it was before the existing hit

Referenced by RaytraceTriangle(), and RaytraceType().

bool Sirikata::Mesh::RaytraceTriangle	(	const Vector3f &	v1,
		const Vector3f &	v2,
		const Vector3f &	v3,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		float32 *	t_out
	)

Raytraces a single triangle.

Assumes that t_out is initialized and will only update output values and return true if the hit is at t < t_orig.

Parameters:

v1	First vertex of triangle
v2	Second vertex of triangle
v3	Third vertex of triangle
ray_start	the starting position of the ray to trace
ray_dir	the direction of the ray to trace
t_out	the point of the collision, if one was found
returns	true if the triangle was hit and it was before the existing hit

References RaytraceTriangle().

bool SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::RaytraceType	(	BillboardPtr	vis,
		const Matrix4x4f &	vis_xform,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		float32 *	t_out,
		Vector3f *	hit_out
	)

References Sirikata::Mesh::Billboard::FACING_CAMERA, Sirikata::Mesh::Billboard::FACING_FIXED, RaytraceSphere(), and RaytraceTriangle().

bool SIRIKATA_MESH_FUNCTION_EXPORT Sirikata::Mesh::RaytraceType	(	MeshdataPtr	vis,
		const Matrix4x4f &	vis_xform,
		const Vector3f &	ray_start,
		const Vector3f &	ray_dir,
		float32 *	t_out,
		Vector3f *	hit_out
	)

References Sirikata::Mesh::GeometryInstance::geometryIndex, Sirikata::Mesh::SubMeshGeometry::Primitive::indices, Sirikata::Mesh::SubMeshGeometry::Primitive::LINES, Sirikata::Mesh::SubMeshGeometry::Primitive::LINESTRIPS, Sirikata::Mesh::Meshdata::GeometryInstanceIterator::next(), Sirikata::Mesh::SubMeshGeometry::Primitive::POINTS, Sirikata::Mesh::SubMeshGeometry::positions, Sirikata::Mesh::SubMeshGeometry::primitives, Sirikata::Mesh::SubMeshGeometry::Primitive::primitiveType, RaytraceTriangle(), Sirikata::Mesh::SubMeshGeometry::Primitive::TRIANGLES, Sirikata::Mesh::SubMeshGeometry::Primitive::TRIFANS, and Sirikata::Mesh::SubMeshGeometry::Primitive::TRISTRIPS.

Referenced by Raytrace().

Filter* Sirikata::Mesh::ReduceDrawCalls

(

const String &

args

)

Referenced by init().

---

Variable Documentation

SIRIKATA_MESH_EXPORT NodeIndex Sirikata::Mesh::NullNodeIndex = -1

Referenced by Sirikata::Mesh::TransformFilter::apply(), Sirikata::Mesh::CenterFilter::apply(), Sirikata::NodeExporter::exportNodes(), Sirikata::Mesh::Meshdata::getTransform(), Sirikata::PlyModelSystem::load(), and Sirikata::Models::ColladaDocumentImporter::translateNodes().