proland::DrawTerrainTask::Impl Class Reference

A Task to draw a terrain. More...

List of all members.

Public Member Functions
	Impl (ptr< SceneNode > n, ptr< TerrainNode > t, ptr< MeshBuffers > m, bool culling)
	Creates a new Impl.
virtual	~Impl ()
	Deletes this Impl.
void	findDrawableQuads (ptr< TerrainQuad > q, const vector< ptr< TileSampler > > &uniforms)
	Finds the quads whose associated tiles are ready (this may not be the case of all quads if async is true).
void	drawQuad (ptr< TerrainQuad > q, const vector< ptr< TileSampler > > &uniforms)
	Draw the mesh m for the leaf quads of the given quadtree.
Public Attributes
ptr< SceneNode >	n
	The SceneNode describing the terrain position and its associated data (via TileSampler fields).
ptr< TerrainNode >	t
	The TerrainNode describing the terrain and its quadtree.
ptr< MeshBuffers >	m
	The mesh to be drawn for each leaf quad.
bool	culling
	True to draw only visible leaf quads, false to draw all leaf quads.
bool	async
	True if one the TileSampler associated with this terrain uses the asynchronous mode.
int	gridSize
	Number of primitives (triangles, lines, etc) per *quarter* of the grid mesh.

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Detailed Description

A Task to draw a terrain.

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Constructor & Destructor Documentation

proland::DrawTerrainTask::Impl::Impl	(	ptr< SceneNode >	n,
		ptr< TerrainNode >	t,
		ptr< MeshBuffers >	m,
		bool	culling
	)

Creates a new Impl.

Parameters:

	n	the SceneNode describing the terrain position.
	t	the TerrainNode describing the terrain and its quadtree.
	m	the mesh to be drawn for each leaf quad.
	culling	true to draw only visible leaf quads.

virtual proland::DrawTerrainTask::Impl::~Impl

(

)

[virtual]

Deletes this Impl.

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Member Function Documentation

void proland::DrawTerrainTask::Impl::drawQuad	(	ptr< TerrainQuad >	q,
		const vector< ptr< TileSampler > > &	uniforms
	)

Draw the mesh m for the leaf quads of the given quadtree.

Before drawing each quad, this method calls Deformation::setUniforms for this quad, and calls TileSampler::setTile on each TileSampler the given uniforms vector.

Parameters:

	q	the terrain quadtree to be drawn.
	uniforms	the TileSampler associated with the terrain.

void proland::DrawTerrainTask::Impl::findDrawableQuads	(	ptr< TerrainQuad >	q,
		const vector< ptr< TileSampler > > &	uniforms
	)

Finds the quads whose associated tiles are ready (this may not be the case of all quads if async is true).

Parameters:

	q	the terrain quadtree to be drawn.
	uniforms	the TileSampler associated with the terrain.

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Member Data Documentation

bool proland::DrawTerrainTask::Impl::async

True if one the TileSampler associated with this terrain uses the asynchronous mode.

bool proland::DrawTerrainTask::Impl::culling

True to draw only visible leaf quads, false to draw all leaf quads.

int proland::DrawTerrainTask::Impl::gridSize

Number of primitives (triangles, lines, etc) per *quarter* of the grid mesh.

Used to draw only parts of the mesh to fill holes when using asynchronous mode.

ptr<MeshBuffers> proland::DrawTerrainTask::Impl::m

The mesh to be drawn for each leaf quad.

ptr<SceneNode> proland::DrawTerrainTask::Impl::n

The SceneNode describing the terrain position and its associated data (via TileSampler fields).

ptr<TerrainNode> proland::DrawTerrainTask::Impl::t

The TerrainNode describing the terrain and its quadtree.