diff options
Diffstat (limited to 'core/math/vector3.h')
| -rw-r--r-- | core/math/vector3.h | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/core/math/vector3.h b/core/math/vector3.h index 19771eb312..dc74096690 100644 --- a/core/math/vector3.h +++ b/core/math/vector3.h @@ -100,6 +100,7 @@ struct _NO_DISCARD_ Vector3 { _FORCE_INLINE_ Vector3 cubic_interpolate(const Vector3 &p_b, const Vector3 &p_pre_a, const Vector3 &p_post_b, const real_t p_weight) const; _FORCE_INLINE_ Vector3 cubic_interpolate_in_time(const Vector3 &p_b, const Vector3 &p_pre_a, const Vector3 &p_post_b, const real_t p_weight, const real_t &p_b_t, const real_t &p_pre_a_t, const real_t &p_post_b_t) const; _FORCE_INLINE_ Vector3 bezier_interpolate(const Vector3 &p_control_1, const Vector3 &p_control_2, const Vector3 &p_end, const real_t p_t) const; + _FORCE_INLINE_ Vector3 bezier_derivative(const Vector3 &p_control_1, const Vector3 &p_control_2, const Vector3 &p_end, const real_t p_t) const; Vector3 move_toward(const Vector3 &p_to, const real_t p_delta) const; @@ -208,10 +209,11 @@ Vector3 Vector3::round() const { } Vector3 Vector3::lerp(const Vector3 &p_to, const real_t p_weight) const { - return Vector3( - x + (p_weight * (p_to.x - x)), - y + (p_weight * (p_to.y - y)), - z + (p_weight * (p_to.z - z))); + Vector3 res = *this; + res.x = Math::lerp(res.x, p_to.x, p_weight); + res.y = Math::lerp(res.y, p_to.y, p_weight); + res.z = Math::lerp(res.z, p_to.z, p_weight); + return res; } Vector3 Vector3::slerp(const Vector3 &p_to, const real_t p_weight) const { @@ -254,15 +256,18 @@ Vector3 Vector3::cubic_interpolate_in_time(const Vector3 &p_b, const Vector3 &p_ Vector3 Vector3::bezier_interpolate(const Vector3 &p_control_1, const Vector3 &p_control_2, const Vector3 &p_end, const real_t p_t) const { Vector3 res = *this; + res.x = Math::bezier_interpolate(res.x, p_control_1.x, p_control_2.x, p_end.x, p_t); + res.y = Math::bezier_interpolate(res.y, p_control_1.y, p_control_2.y, p_end.y, p_t); + res.z = Math::bezier_interpolate(res.z, p_control_1.z, p_control_2.z, p_end.z, p_t); + return res; +} - /* Formula from Wikipedia article on Bezier curves. */ - real_t omt = (1.0 - p_t); - real_t omt2 = omt * omt; - real_t omt3 = omt2 * omt; - real_t t2 = p_t * p_t; - real_t t3 = t2 * p_t; - - return res * omt3 + p_control_1 * omt2 * p_t * 3.0 + p_control_2 * omt * t2 * 3.0 + p_end * t3; +Vector3 Vector3::bezier_derivative(const Vector3 &p_control_1, const Vector3 &p_control_2, const Vector3 &p_end, const real_t p_t) const { + Vector3 res = *this; + res.x = Math::bezier_derivative(res.x, p_control_1.x, p_control_2.x, p_end.x, p_t); + res.y = Math::bezier_derivative(res.y, p_control_1.y, p_control_2.y, p_end.y, p_t); + res.z = Math::bezier_derivative(res.z, p_control_1.z, p_control_2.z, p_end.z, p_t); + return res; } real_t Vector3::distance_to(const Vector3 &p_to) const { |