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docs: update ray sphere intersection brief

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Recep Aslantas
2024-03-22 23:49:05 +03:00
parent ceaa54aef8
commit e4c38ccc4c
1 changed files with 7 additions and 0 deletions
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7
include/cglm/struct/ray.h
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@@ -40,6 +40,13 @@ glms_ray_(triangle)(vec3s origin,
/*!
* @brief ray sphere intersection
*
* - t1 > 0, t2 > 0: ray intersects the sphere at t1 and t2 both ahead of the origin
* - t1 < 0, t2 > 0: ray starts inside the sphere, exits at t2
* - t1 < 0, t2 < 0: no intersection ahead of the ray
* - the caller can check if the intersection points (t1 and t2) fall within a
* specific range (for example, tmin < t1, t2 < tmax) to determine if the
* intersections are within a desired segment of the ray
*
* @param[in] origin ray origin
* @param[out] dir normalized ray direction
* @param[in] s sphere [center.x, center.y, center.z, radii]