glus_intersect.h File Reference

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Functions
GLUSAPI GLUSint GLUSAPIENTRY	glusIntersectRaySpheref (GLUSfloat *tNear, GLUSfloat *tFar, GLUSboolean *insideSphere, const GLUSfloat rayStart[4], const GLUSfloat rayDirection[3], const GLUSfloat sphereCenter[4], const GLUSfloat radius)
	Intersecting ray against sphere. More...

Function Documentation

GLUSAPI GLUSint GLUSAPIENTRY glusIntersectRaySpheref	(	GLUSfloat *	tNear,
		GLUSfloat *	tFar,
		GLUSboolean *	insideSphere,
		const GLUSfloat	rayStart[4],
		const GLUSfloat	rayDirection[3],
		const GLUSfloat	sphereCenter[4],
		const GLUSfloat	radius
	)

Intersecting ray against sphere.

Parameters

tNear	t of near intersection point if number intersections greater than zero.
tFar	t of far intersection point if number intersections greater than zero.
insideSphere	Set to GLUS_TRUE, if ray starts inside sphere.
rayStart	Point, where the ray starts.
rayDirection	Ray direction vector. Has to be normalized.
sphereCenter	Center of the sphere given as a point.
radius	Radius of the sphere.

Returns

Number of intersection points.