DD::Image::RegularGrid Class Reference

Inherits DD::Image::BasicGrid.

List of all members.

Public Member Functions
GridCell &	cell (unsigned int x, unsigned int y, unsigned int z)
GridCell &	cell (unsigned int index)
void	rebuild (const std::vector< DrawableGeo > &objects, bool buildPoints)
virtual bool	getCandidateGridCells (ViewerContext *ctx, const Box &selection, std::list< unsigned int > &candidates)
bool	testRayIntersection (ViewerContext *ctx, Ray &ray, PrimitiveTestCache &primTested, std::vector< bool > &tested, CollisionResult *collisionInfo=NULL)
bool	testRayIntersection (ViewerContext *ctx, Ray &ray, PrimitiveTestCache &primTested, CollisionResult *collisionInfo=NULL)
bool	screenToWorldRayTest (ViewerContext *ctx, unsigned int screenX, unsigned int screenY, PrimitiveTestCache &primTested, CollisionResult *collisionInfo)
virtual bool	processCell (ViewerContext *ctx, unsigned int cellIndex, const Ray &ray, std::vector< bool > &tested, PrimitiveTestCache &primTested)
virtual Vector4	cellColor (unsigned int index) const
void	draw_wireframe (ViewerContext *vtx) const
Static Public Member Functions
static void	getScreenToWorldRay (ViewerContext *ctx, unsigned int screenX, unsigned int screenY, Ray &ray)

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Detailed Description

A Regular grid is used to perform ray intersection with an array of DrawableGeo. Multiple threads can query for ray intersection, all the ray test intersection methods are thread safe. Please note that the rebuild method is not thread safe and must be called before any ray intersection test.