dtAnim::SubmeshDrawable Class Reference

Adapter that converts cal3d submeshes into osg::Drawables. More...

#include <submesh.h>

List of all members.

Public Member Functions
	SubmeshDrawable (Cal3DModelWrapper *wrapper, unsigned mesh, unsigned submesh)
	Creates a submesh for one model given the mesh and submesh of this mesh.
virtual void	drawImplementation (osg::RenderInfo &renderInfo) const
	Draws the geometry.
virtual bool	supports (osg::PrimitiveFunctor &) const
	Accept PrimitiveVisitor, in this case a TriangleVisitor.
virtual void	accept (osg::PrimitiveFunctor &pf) const
	Accept a PrimitiveFunctor and call its methods to tell it about the interal primitives that this Drawable has.
virtual osg::Object *	cloneType () const
virtual osg::Object *	clone (const osg::CopyOp &) const
unsigned int	GetMeshID () const
unsigned int	GetSubmeshID () const
Cal3DModelWrapper &	GetModelWrapper ()
const Cal3DModelWrapper &	GetModelWrapper () const
LODOptions &	GetLODOptions ()
const LODOptions &	GetLODOptions () const
float	GetCurrentLOD () const
void	SetCurrentLOD (float lod)
Static Public Attributes
static const unsigned	LOD_COUNT = 4
Protected Member Functions
	~SubmeshDrawable ()
void	InitVertexBuffers (osg::State &state) const

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Detailed Description

Adapter that converts cal3d submeshes into osg::Drawables.

The easy way would be to draw all the character (CalModel) in a single Drawable, but this approach lacks from state sorting. Each submesh of each mesh of a model can have different state attributes. With the current approach, if you have 1000 soldiers with two different textures each one, there will be only two state changes per frame, and not 2000.

Users of the osgCal library doesn't need to know about this class, it is internal.

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Constructor & Destructor Documentation

dtAnim::SubmeshDrawable::SubmeshDrawable	(	Cal3DModelWrapper *	wrapper,
		unsigned	mesh,
		unsigned	submesh
	)

Creates a submesh for one model given the mesh and submesh of this mesh.

dtAnim::SubmeshDrawable::~SubmeshDrawable

(

void

)

[protected]

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Member Function Documentation

void dtAnim::SubmeshDrawable::drawImplementation

(

osg::RenderInfo &

renderInfo

)

const [virtual]

Draws the geometry.

the inverse of ((index + 1) / LOD_COUNT) = lodfloat as seen in InitVertexBuffers.

quantify the lod floating point number.

offset into the vbo to fill the correct lod.

virtual bool dtAnim::SubmeshDrawable::supports

(

osg::PrimitiveFunctor &

)

const [inline, virtual]

Accept PrimitiveVisitor, in this case a TriangleVisitor.

Return true, SubMesh does support accept(PrimitiveFunctor&).

void dtAnim::SubmeshDrawable::accept

(

osg::PrimitiveFunctor &

pf

)

const [virtual]

Accept a PrimitiveFunctor and call its methods to tell it about the interal primitives that this Drawable has.

this processes the lowest LOD at the moment, because that's what's loaded at the front of the VBO.

osg::Object * dtAnim::SubmeshDrawable::cloneType

(

)

const [virtual]

osg::Object * dtAnim::SubmeshDrawable::clone

(

const osg::CopyOp &

)

const [virtual]

unsigned int dtAnim::SubmeshDrawable::GetMeshID

(

)

const [inline]

unsigned int dtAnim::SubmeshDrawable::GetSubmeshID

(

)

const [inline]

Cal3DModelWrapper& dtAnim::SubmeshDrawable::GetModelWrapper

(

)

[inline]

const Cal3DModelWrapper& dtAnim::SubmeshDrawable::GetModelWrapper

(

)

const [inline]

LODOptions& dtAnim::SubmeshDrawable::GetLODOptions

(

)

[inline]

const LODOptions& dtAnim::SubmeshDrawable::GetLODOptions

(

)

const [inline]

float dtAnim::SubmeshDrawable::GetCurrentLOD

(

)

const [inline]

void dtAnim::SubmeshDrawable::SetCurrentLOD

(

float

lod

)

[inline]

void dtAnim::SubmeshDrawable::InitVertexBuffers

(

osg::State &

state

)

const [protected]

Fill the index and vertex VBOs once for each level of detail

offset into the vbo to fill the correct lod.

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Member Data Documentation

const unsigned dtAnim::SubmeshDrawable::LOD_COUNT = 4 [static]

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