constexpr float PI_1p5 = PI * 1.5f;
constexpr float PI_2p0 = PI * 2.0f;
+constexpr float DEG_RAD_FACTOR = PI / 180.0f;
+constexpr float RAD_DEG_FACTOR = 180.0f / PI;
+
+constexpr float deg2rad(float d) {
+ return d * DEG_RAD_FACTOR;
+}
+
+constexpr float rad2deg(float r) {
+ return r * RAD_DEG_FACTOR;
+}
+
+
+template<class T>
+T manhattan_distance(const glm::tvec3<T> &a, const glm::tvec3<T> &b) {
+ glm::tvec3<T> diff(abs(a - b));
+ return diff.x + diff.y + diff.z;
+}
+
+template<class T>
+T manhattan_radius(const glm::tvec3<T> &v) {
+ glm::tvec3<T> a(abs(v));
+ return std::max(a.x, std::max(a.y, a.z));
+}
+
+
struct AABB {
glm::vec3 min;
glm::vec3 max;
if (max.y < min.y) std::swap(max.y, min.y);
if (max.z < min.z) std::swap(max.z, min.z);
}
+
+ glm::vec3 Center() const noexcept {
+ return min + (max - min) * 0.5f;
+ }
};
struct Ray {
const AABB &a_box,
const glm::mat4 &a_m,
const AABB &b_box,
- const glm::mat4 &b_m) noexcept;
+ const glm::mat4 &b_m,
+ float &depth,
+ glm::vec3 &normal) noexcept;
bool CullTest(const AABB &box, const glm::mat4 &MVP) noexcept;