cajeta.math.Ray — a half-line origin + t * direction for t >= 0, the parametric query primitive shared by picking, culling, and the software ray-query paths. A value type over the builtin Vector<float32,3>: stack-allocated by default, no heap, no drop chain. direction is stored as-given (not auto-normalized); intersection helpers that assume a unit direction document that requirement.

package snip.ray;

import cajeta.math.Ray;

public final class Demo {
    public static void run() {
        Vector<float32,3> o = stack Vector<float32,3>(0.0f, 0.0f, 0.0f);
        Vector<float32,3> d = stack Vector<float32,3>(0.0f, 0.0f, 1.0f);
        Ray r = stack Ray(o, d);
        Vector<float32,3> p = r.at(5.0f);   // (0, 0, 5)
        return;
    }
}

Methods

Signature
`Ray(Vector<float32,3> origin, Vector<float32,3> direction)` ⚑	Build a ray from its origin and direction (direction stored as given)
`Vector<float32,3> origin()`	The ray’s start point
`Vector<float32,3> direction()`	The ray’s direction (stored as given; not auto-normalized)
`Vector<float32,3> at(float32 t)`	The point `origin + t * direction`

⚑ = @EntryPoint

Ray

Methods

See also