vec3 rayDirection()

in src/Algorithm/fractals.c [468:475]

• 7 lines of code
• 1 McCabe index (conditional complexity)

vec3 rayDirection(vec2 pixel)
{
    vec2 p = (0.5 * size - pixel) / vec2(size.x, -size.y);
    p.x *= aspectRatio;
    vec3 d = (p.x * u + p.y * v - cameraFocalLength * w);

    return normalize(cameraRotation * d);
}