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Optimized and exposed Basis::scaled_local.

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This commit is contained in:
Zi Ye 2025-01-14 17:38:40 -06:00
parent d59994688c
commit b957cf73ef
3 changed files with 44 additions and 11 deletions
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20
core/math/basis.cpp
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@ -232,15 +232,9 @@ Basis Basis::from_scale(const Vector3 &p_scale) {
// Multiplies the matrix from left by the scaling matrix: M -> S.M
// See the comment for Basis::rotated for further explanation.
void Basis::scale(const Vector3 &p_scale) {
rows[0][0] *= p_scale.x;
rows[0][1] *= p_scale.x;
rows[0][2] *= p_scale.x;
rows[1][0] *= p_scale.y;
rows[1][1] *= p_scale.y;
rows[1][2] *= p_scale.y;
rows[2][0] *= p_scale.z;
rows[2][1] *= p_scale.z;
rows[2][2] *= p_scale.z;
rows[0] *= p_scale.x;
rows[1] *= p_scale.y;
rows[2] *= p_scale.z;
}
Basis Basis::scaled(const Vector3 &p_scale) const {
@ -252,7 +246,9 @@ Basis Basis::scaled(const Vector3 &p_scale) const {
void Basis::scale_local(const Vector3 &p_scale) {
// performs a scaling in object-local coordinate system:
// M -> (M.S.Minv).M = M.S.
*this = scaled_local(p_scale);
rows[0] *= p_scale;
rows[1] *= p_scale;
rows[2] *= p_scale;
}
void Basis::scale_orthogonal(const Vector3 &p_scale) {
@ -283,7 +279,9 @@ real_t Basis::get_uniform_scale() const {
}
Basis Basis::scaled_local(const Vector3 &p_scale) const {
return (*this) * Basis::from_scale(p_scale);
Basis m = *this;
m.scale_local(p_scale);
return m;
}
Vector3 Basis::get_scale_abs() const {