kzc_ray.hpp File Reference

Ray utility. More...

#include <kanzi/core/legacy/util/math/kzc_vector3.hpp>
#include <kanzi/core/legacy/kzs_types.hpp>

Classes
struct	KzcRay
	Structure for ray. More...

Functions
KZ_INLINE void	kzcRaySet (const struct KzcVector3 origin, const struct KzcVector3 direction, struct KzcRay *out_ray)
	Constructs a ray from point and direction vector. More...
KANZI_API kzBool	kzcRaySphereIntersection (const struct KzcRay *ray, const struct KzcVector3 *spherePosition, const kzFloat sphereRadius, kzFloat *out_distance)
	Test intersection between ray and sphere and return distance. More...
KANZI_API kzBool	kzcRayBoundingBoxIntersection (const struct KzcRay *ray, const struct KzcVector3 *boundingBoxMinimum, const struct KzcVector3 *boundingBoxMaximum, const struct KzcMatrix4x4 *boxOrientation, kzFloat *out_distance, struct KzcVector3 *out_hitPoint)
	Test intersection between ray and bounding box. More...
KANZI_API kzBool	kzcRayBoundingBoxBackfaceIntersection (const struct KzcRay *ray, const struct KzcVector3 *boundingBoxMinimum, const struct KzcVector3 *boundingBoxMaximum, const struct KzcMatrix4x4 *boxOrientation, kzFloat *out_distance, struct KzcVector3 *out_hitPoint)
	Test intersection between ray and bounding box back faces. More...
KANZI_API kzBool	kzcRayCylinderIntersection (const struct KzcRay *ray, kzFloat cylinderRadius, kzFloat cylinderHeight, const struct KzcVector3 *cylinderAxis, const struct KzcMatrix4x4 *cylinderTransform, kzFloat *out_distance)
	Tests intersection between ray and cylinder aligned in the given unit-axis, ranging [-height/2, height/2]. More...
KANZI_API void	kzcRayTransform (struct KzcRay *ray, const struct KzcMatrix4x4 *transform)
	Transform a ray by a 4x4 matrix. More...

Detailed Description

Ray utility.

Copyright 2008-2017 by Rightware. All rights reserved.

Function Documentation

KZ_INLINE void kzcRaySet	(	const struct KzcVector3	origin,
		const struct KzcVector3	direction,
		struct KzcRay *	out_ray
	)

Constructs a ray from point and direction vector.

Normalizes the direction vector

KANZI_API kzBool kzcRaySphereIntersection	(	const struct KzcRay *	ray,
		const struct KzcVector3 *	spherePosition,
		const kzFloat	sphereRadius,
		kzFloat *	out_distance
	)

Test intersection between ray and sphere and return distance.

KANZI_API kzBool kzcRayBoundingBoxIntersection	(	const struct KzcRay *	ray,
		const struct KzcVector3 *	boundingBoxMinimum,
		const struct KzcVector3 *	boundingBoxMaximum,
		const struct KzcMatrix4x4 *	boxOrientation,
		kzFloat *	out_distance,
		struct KzcVector3 *	out_hitPoint
	)

Test intersection between ray and bounding box.

KANZI_API kzBool kzcRayBoundingBoxBackfaceIntersection	(	const struct KzcRay *	ray,
		const struct KzcVector3 *	boundingBoxMinimum,
		const struct KzcVector3 *	boundingBoxMaximum,
		const struct KzcMatrix4x4 *	boxOrientation,
		kzFloat *	out_distance,
		struct KzcVector3 *	out_hitPoint
	)

Test intersection between ray and bounding box back faces.

KANZI_API kzBool kzcRayCylinderIntersection	(	const struct KzcRay *	ray,
		kzFloat	cylinderRadius,
		kzFloat	cylinderHeight,
		const struct KzcVector3 *	cylinderAxis,
		const struct KzcMatrix4x4 *	cylinderTransform,
		kzFloat *	out_distance
	)

Tests intersection between ray and cylinder aligned in the given unit-axis, ranging [-height/2, height/2].

The cylinder is first transformed with the given transformation matrix.

KANZI_API void kzcRayTransform	(	struct KzcRay *	ray,
		const struct KzcMatrix4x4 *	transform
	)

Transform a ray by a 4x4 matrix.