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fix mouse picking

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This commit is contained in:
Simon Pribylski
2023-06-03 20:43:40 +02:00
parent cb5f5a4cf8
commit 193e4db651
6 changed files with 67 additions and 65 deletions
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18
include/misc/Maths.h
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@@ -10,6 +10,11 @@ namespace maths {
// Vectors //
//////////////////////////////////////////////////////////////////
template<typename T>
Vec2<T> operator+(const Vec2<T>& vect, const Vec2<T>& other) {
return {vect.x + other.x, vect.y + other.y};
}
template<typename T>
Vec3<T> operator- (const Vec3<T>& vect) {
return { -vect.x, -vect.y, -vect.z };
@@ -32,6 +37,13 @@ Vec3<T> Normalize(const Vec3<T>& vect) {
return { vect.x / length, vect.y / length, vect.z / length };
}
template<typename T>
Vec4<T> Normalize(const Vec4<T>& vect) {
T length = std::sqrt(vect.x * vect.x + vect.y * vect.y + vect.z * vect.z + vect.w * vect.w);
return { vect.x / length, vect.y / length, vect.z / length, vect.w / length };
}
template<typename T>
T Dot(const Vec3<T>& vect, const Vec3<T>& other) {
return vect.x * other.x + vect.y * other.y + vect.z * other.z;
@@ -59,9 +71,9 @@ template<typename T>
Vec4<T> Dot(const Mat4<T>& mat, const Vec4<T>& vect) {
return {
Dot(*reinterpret_cast<const Vec4<T>*>(&mat), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(&mat[Mat4<T>::MATRIX_SIZE]), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(&mat[2 * Mat4<T>::MATRIX_SIZE]), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(&mat[3 * Mat4<T>::MATRIX_SIZE]), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(mat.data() + Mat4<T>::MATRIX_SIZE), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(mat.data() + 2 * Mat4<T>::MATRIX_SIZE), vect),
Dot(*reinterpret_cast<const Vec4<T>*>(mat.data() + 3 * Mat4<T>::MATRIX_SIZE), vect),
};
}