Graphics Cache interface
[Interfaces]

This interface is used to hide the per object intersection research process and is used by the ObjectSet class. It is used by the Renderer class. More...

Classes
class	GraphicsCacheInterface
	Definition of the GraphicsCacheInterface class. More...
class	GraphicsCacheInterface
	Definition of the GraphicsCacheInterface class. More...
Functions
virtual bool	GraphicsCacheInterface::intersect (uint32 graphics_id, ray &r, float &distance, packed &data)=0
virtual void	GraphicsCacheInterface::compute_intersection (uint32 graphics_id, ray &r, intersection &inter, packed &data)=0
virtual void	GraphicsCacheInterface::sample_surface (uint32 graphics_id, uint32 number, vec3 *vtab, vec3 *ntab)=0
	Samples object surface.

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Detailed Description

This interface is used to hide the per object intersection research process and is used by the ObjectSet class. It is used by the Renderer class.

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Function Documentation

virtual void GraphicsCacheInterface::compute_intersection	(	uint32	graphics_id,
		ray &	r,
		intersection &	inter,
		packed &	data
	)			[pure virtual, inherited]

Computes the full intersection knowing r, inter.plocal and data

Parameters:

	r	the used ray,
	inter	the resulting intersection,
	data	some information which are coming from intersect.

virtual bool GraphicsCacheInterface::intersect	(	uint32	graphics_id,
		ray &	r,
		float &	distance,
		packed &	data
	)			[pure virtual, inherited]

Evaluates an intersection test and compute distance from the ray's origin to this point.

Parameters:

	r	the ray to evaluate,
	distance	the distance from the ray's origin to the intersection point,
	data	some place to pack temporaries informations to pass to compute_intersection.

Returns:

true if an intersection is found.

virtual void GraphicsCacheInterface::sample_surface	(	uint32	graphics_id,
		uint32	number,
		vec3 *	vtab,
		vec3 *	ntab
	)			[pure virtual, inherited]

Samples object surface.

Parameters:

	graphics_id	the id of the geometry entry,
	number	the sample number to compute,
	vtab	the resulting vertex array,
	vtab	the resulting normal array.

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