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Make cubic_interpolate() consider key time in animation

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Silc Renew 2022-07-29 04:55:10 +09:00
parent 0ba1046355
commit dded7c72c1
20 changed files with 352 additions and 23 deletions
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23
core/math/math_funcs.h
View file

@ -253,6 +253,29 @@ public:
(-p_pre + 3.0f * p_from - 3.0f * p_to + p_post) * (p_weight * p_weight * p_weight));
}
static _ALWAYS_INLINE_ double cubic_interpolate_in_time(double p_from, double p_to, double p_pre, double p_post, double p_weight,
double p_to_t, double p_pre_t, double p_post_t) {
/* Barry-Goldman method */
double t = Math::lerp(0.0, p_to_t, p_weight);
double a1 = Math::lerp(p_pre, p_from, p_pre_t == 0 ? 0.0 : (t - p_pre_t) / -p_pre_t);
double a2 = Math::lerp(p_from, p_to, p_to_t == 0 ? 0.5 : t / p_to_t);
double a3 = Math::lerp(p_to, p_post, p_post_t - p_to_t == 0 ? 1.0 : (t - p_to_t) / (p_post_t - p_to_t));
double b1 = Math::lerp(a1, a2, p_to_t - p_pre_t == 0 ? 0.0 : (t - p_pre_t) / (p_to_t - p_pre_t));
double b2 = Math::lerp(a2, a3, p_post_t == 0 ? 1.0 : t / p_post_t);
return Math::lerp(b1, b2, p_to_t == 0 ? 0.5 : t / p_to_t);
}
static _ALWAYS_INLINE_ float cubic_interpolate_in_time(float p_from, float p_to, float p_pre, float p_post, float p_weight,
float p_to_t, float p_pre_t, float p_post_t) {
/* Barry-Goldman method */
float t = Math::lerp(0.0f, p_to_t, p_weight);
float a1 = Math::lerp(p_pre, p_from, p_pre_t == 0 ? 0.0f : (t - p_pre_t) / -p_pre_t);
float a2 = Math::lerp(p_from, p_to, p_to_t == 0 ? 0.5f : t / p_to_t);
float a3 = Math::lerp(p_to, p_post, p_post_t - p_to_t == 0 ? 1.0f : (t - p_to_t) / (p_post_t - p_to_t));
float b1 = Math::lerp(a1, a2, p_to_t - p_pre_t == 0 ? 0.0f : (t - p_pre_t) / (p_to_t - p_pre_t));
float b2 = Math::lerp(a2, a3, p_post_t == 0 ? 1.0f : t / p_post_t);
return Math::lerp(b1, b2, p_to_t == 0 ? 0.5f : t / p_to_t);
}
static _ALWAYS_INLINE_ double bezier_interpolate(double p_start, double p_control_1, double p_control_2, double p_end, double p_t) {
/* Formula from Wikipedia article on Bezier curves. */
double omt = (1.0 - p_t);

51
core/math/quaternion.cpp
View file

@ -233,6 +233,57 @@ Quaternion Quaternion::spherical_cubic_interpolate(const Quaternion &p_b, const
return q1.slerp(q2, p_weight);
}
Quaternion Quaternion::spherical_cubic_interpolate_in_time(const Quaternion &p_b, const Quaternion &p_pre_a, const Quaternion &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 {
#ifdef MATH_CHECKS
ERR_FAIL_COND_V_MSG(!is_normalized(), Quaternion(), "The start quaternion must be normalized.");
ERR_FAIL_COND_V_MSG(!p_b.is_normalized(), Quaternion(), "The end quaternion must be normalized.");
#endif
Quaternion from_q = *this;
Quaternion pre_q = p_pre_a;
Quaternion to_q = p_b;
Quaternion post_q = p_post_b;
// Align flip phases.
from_q = Basis(from_q).get_rotation_quaternion();
pre_q = Basis(pre_q).get_rotation_quaternion();
to_q = Basis(to_q).get_rotation_quaternion();
post_q = Basis(post_q).get_rotation_quaternion();
// Flip quaternions to shortest path if necessary.
bool flip1 = signbit(from_q.dot(pre_q));
pre_q = flip1 ? -pre_q : pre_q;
bool flip2 = signbit(from_q.dot(to_q));
to_q = flip2 ? -to_q : to_q;
bool flip3 = flip2 ? to_q.dot(post_q) <= 0 : signbit(to_q.dot(post_q));
post_q = flip3 ? -post_q : post_q;
// Calc by Expmap in from_q space.
Quaternion ln_from = Quaternion(0, 0, 0, 0);
Quaternion ln_to = (from_q.inverse() * to_q).log();
Quaternion ln_pre = (from_q.inverse() * pre_q).log();
Quaternion ln_post = (from_q.inverse() * post_q).log();
Quaternion ln = Quaternion(0, 0, 0, 0);
ln.x = Math::cubic_interpolate_in_time(ln_from.x, ln_to.x, ln_pre.x, ln_post.x, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
ln.y = Math::cubic_interpolate_in_time(ln_from.y, ln_to.y, ln_pre.y, ln_post.y, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
ln.z = Math::cubic_interpolate_in_time(ln_from.z, ln_to.z, ln_pre.z, ln_post.z, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
Quaternion q1 = from_q * ln.exp();
// Calc by Expmap in to_q space.
ln_from = (to_q.inverse() * from_q).log();
ln_to = Quaternion(0, 0, 0, 0);
ln_pre = (to_q.inverse() * pre_q).log();
ln_post = (to_q.inverse() * post_q).log();
ln = Quaternion(0, 0, 0, 0);
ln.x = Math::cubic_interpolate_in_time(ln_from.x, ln_to.x, ln_pre.x, ln_post.x, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
ln.y = Math::cubic_interpolate_in_time(ln_from.y, ln_to.y, ln_pre.y, ln_post.y, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
ln.z = Math::cubic_interpolate_in_time(ln_from.z, ln_to.z, ln_pre.z, ln_post.z, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
Quaternion q2 = to_q * ln.exp();
// To cancel error made by Expmap ambiguity, do blends.
return q1.slerp(q2, p_weight);
}
Quaternion::operator String() const {
return "(" + String::num_real(x, false) + ", " + String::num_real(y, false) + ", " + String::num_real(z, false) + ", " + String::num_real(w, false) + ")";
}

1
core/math/quaternion.h
View file

@ -72,6 +72,7 @@ struct _NO_DISCARD_ Quaternion {
Quaternion slerp(const Quaternion &p_to, const real_t &p_weight) const;
Quaternion slerpni(const Quaternion &p_to, const real_t &p_weight) const;
Quaternion spherical_cubic_interpolate(const Quaternion &p_b, const Quaternion &p_pre_a, const Quaternion &p_post_b, const real_t &p_weight) const;
Quaternion spherical_cubic_interpolate_in_time(const Quaternion &p_b, const Quaternion &p_pre_a, const Quaternion &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;
Vector3 get_axis() const;
real_t get_angle() const;

8
core/math/vector2.h
View file

@ -114,6 +114,7 @@ struct _NO_DISCARD_ Vector2 {
_FORCE_INLINE_ Vector2 lerp(const Vector2 &p_to, const real_t p_weight) const;
_FORCE_INLINE_ Vector2 slerp(const Vector2 &p_to, const real_t p_weight) const;
_FORCE_INLINE_ Vector2 cubic_interpolate(const Vector2 &p_b, const Vector2 &p_pre_a, const Vector2 &p_post_b, const real_t p_weight) const;
_FORCE_INLINE_ Vector2 cubic_interpolate_in_time(const Vector2 &p_b, const Vector2 &p_pre_a, const Vector2 &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_ Vector2 bezier_interpolate(const Vector2 &p_control_1, const Vector2 &p_control_2, const Vector2 &p_end, const real_t p_t) const;
Vector2 move_toward(const Vector2 &p_to, const real_t p_delta) const;
@ -270,6 +271,13 @@ Vector2 Vector2::cubic_interpolate(const Vector2 &p_b, const Vector2 &p_pre_a, c
return res;
}
Vector2 Vector2::cubic_interpolate_in_time(const Vector2 &p_b, const Vector2 &p_pre_a, const Vector2 &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 {
Vector2 res = *this;
res.x = Math::cubic_interpolate_in_time(res.x, p_b.x, p_pre_a.x, p_post_b.x, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.y = Math::cubic_interpolate_in_time(res.y, p_b.y, p_pre_a.y, p_post_b.y, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
return res;
}
Vector2 Vector2::bezier_interpolate(const Vector2 &p_control_1, const Vector2 &p_control_2, const Vector2 &p_end, const real_t p_t) const {
Vector2 res = *this;

9
core/math/vector3.h
View file

@ -105,6 +105,7 @@ struct _NO_DISCARD_ Vector3 {
_FORCE_INLINE_ Vector3 lerp(const Vector3 &p_to, const real_t p_weight) const;
_FORCE_INLINE_ Vector3 slerp(const Vector3 &p_to, const real_t p_weight) const;
_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;
Vector3 move_toward(const Vector3 &p_to, const real_t p_delta) const;
@ -246,6 +247,14 @@ Vector3 Vector3::cubic_interpolate(const Vector3 &p_b, const Vector3 &p_pre_a, c
return res;
}
Vector3 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 {
Vector3 res = *this;
res.x = Math::cubic_interpolate_in_time(res.x, p_b.x, p_pre_a.x, p_post_b.x, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.y = Math::cubic_interpolate_in_time(res.y, p_b.y, p_pre_a.y, p_post_b.y, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.z = Math::cubic_interpolate_in_time(res.z, p_b.z, p_pre_a.z, p_post_b.z, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
return res;
}
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;

9
core/math/vector4.cpp
View file

@ -138,6 +138,15 @@ Vector4 Vector4::cubic_interpolate(const Vector4 &p_b, const Vector4 &p_pre_a, c
return res;
}
Vector4 Vector4::cubic_interpolate_in_time(const Vector4 &p_b, const Vector4 &p_pre_a, const Vector4 &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 {
Vector4 res = *this;
res.x = Math::cubic_interpolate_in_time(res.x, p_b.x, p_pre_a.x, p_post_b.x, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.y = Math::cubic_interpolate_in_time(res.y, p_b.y, p_pre_a.y, p_post_b.y, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.z = Math::cubic_interpolate_in_time(res.z, p_b.z, p_pre_a.z, p_post_b.z, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
res.w = Math::cubic_interpolate_in_time(res.w, p_b.w, p_pre_a.w, p_post_b.w, p_weight, p_b_t, p_pre_a_t, p_post_b_t);
return res;
}
Vector4 Vector4::posmod(const real_t p_mod) const {
return Vector4(Math::fposmod(x, p_mod), Math::fposmod(y, p_mod), Math::fposmod(z, p_mod), Math::fposmod(w, p_mod));
}

1
core/math/vector4.h
View file

@ -89,6 +89,7 @@ struct _NO_DISCARD_ Vector4 {
Vector4 round() const;
Vector4 lerp(const Vector4 &p_to, const real_t p_weight) const;
Vector4 cubic_interpolate(const Vector4 &p_b, const Vector4 &p_pre_a, const Vector4 &p_post_b, const real_t p_weight) const;
Vector4 cubic_interpolate_in_time(const Vector4 &p_b, const Vector4 &p_pre_a, const Vector4 &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;
Vector4 posmod(const real_t p_mod) const;
Vector4 posmodv(const Vector4 &p_modv) const;

4
core/variant/variant_call.cpp
View file

@ -1608,6 +1608,7 @@ static void _register_variant_builtin_methods() {
bind_method(Vector2, lerp, sarray("to", "weight"), varray());
bind_method(Vector2, slerp, sarray("to", "weight"), varray());
bind_method(Vector2, cubic_interpolate, sarray("b", "pre_a", "post_b", "weight"), varray());
bind_method(Vector2, cubic_interpolate_in_time, sarray("b", "pre_a", "post_b", "weight", "b_t", "pre_a_t", "post_b_t"), varray());
bind_method(Vector2, bezier_interpolate, sarray("control_1", "control_2", "end", "t"), varray());
bind_method(Vector2, max_axis_index, sarray(), varray());
bind_method(Vector2, min_axis_index, sarray(), varray());
@ -1696,6 +1697,7 @@ static void _register_variant_builtin_methods() {
bind_method(Vector3, lerp, sarray("to", "weight"), varray());
bind_method(Vector3, slerp, sarray("to", "weight"), varray());
bind_method(Vector3, cubic_interpolate, sarray("b", "pre_a", "post_b", "weight"), varray());
bind_method(Vector3, cubic_interpolate_in_time, sarray("b", "pre_a", "post_b", "weight", "b_t", "pre_a_t", "post_b_t"), varray());
bind_method(Vector3, bezier_interpolate, sarray("control_1", "control_2", "end", "t"), varray());
bind_method(Vector3, move_toward, sarray("to", "delta"), varray());
bind_method(Vector3, dot, sarray("with"), varray());
@ -1738,6 +1740,7 @@ static void _register_variant_builtin_methods() {
bind_method(Vector4, round, sarray(), varray());
bind_method(Vector4, lerp, sarray("to", "weight"), varray());
bind_method(Vector4, cubic_interpolate, sarray("b", "pre_a", "post_b", "weight"), varray());
bind_method(Vector4, cubic_interpolate_in_time, sarray("b", "pre_a", "post_b", "weight", "b_t", "pre_a_t", "post_b_t"), varray());
bind_method(Vector4, posmod, sarray("mod"), varray());
bind_method(Vector4, posmodv, sarray("modv"), varray());
bind_method(Vector4, snapped, sarray("step"), varray());
@ -1789,6 +1792,7 @@ static void _register_variant_builtin_methods() {
bind_method(Quaternion, slerp, sarray("to", "weight"), varray());
bind_method(Quaternion, slerpni, sarray("to", "weight"), varray());
bind_method(Quaternion, spherical_cubic_interpolate, sarray("b", "pre_a", "post_b", "weight"), varray());
bind_method(Quaternion, spherical_cubic_interpolate_in_time, sarray("b", "pre_a", "post_b", "weight", "b_t", "pre_a_t", "post_b_t"), varray());
bind_method(Quaternion, get_euler, sarray(), varray());
bind_method(Quaternion, get_axis, sarray(), varray());
bind_method(Quaternion, get_angle, sarray(), varray());

6
core/variant/variant_utility.cpp
View file

@ -367,6 +367,11 @@ struct VariantUtilityFunctions {
return Math::cubic_interpolate(from, to, pre, post, weight);
}
static inline double cubic_interpolate_in_time(double from, double to, double pre, double post, double weight,
double to_t, double pre_t, double post_t) {
return Math::cubic_interpolate_in_time(from, to, pre, post, weight, to_t, pre_t, post_t);
}
static inline double bezier_interpolate(double p_start, double p_control_1, double p_control_2, double p_end, double p_t) {
return Math::bezier_interpolate(p_start, p_control_1, p_control_2, p_end, p_t);
}
@ -1414,6 +1419,7 @@ void Variant::_register_variant_utility_functions() {
FUNCBINDVR3(lerp, sarray("from", "to", "weight"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(lerpf, sarray("from", "to", "weight"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(cubic_interpolate, sarray("from", "to", "pre", "post", "weight"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(cubic_interpolate_in_time, sarray("from", "to", "pre", "post", "weight", "to_t", "pre_t", "post_t"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(bezier_interpolate, sarray("start", "control_1", "control_2", "end", "t"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(lerp_angle, sarray("from", "to", "weight"), Variant::UTILITY_FUNC_TYPE_MATH);
FUNCBINDR(inverse_lerp, sarray("from", "to", "weight"), Variant::UTILITY_FUNC_TYPE_MATH);

15
doc/classes/@GlobalScope.xml
View file

@ -260,6 +260,21 @@
Cubic interpolates between two values by the factor defined in [param weight] with pre and post values.
</description>
</method>
<method name="cubic_interpolate_in_time">
<return type="float" />
<param index="0" name="from" type="float" />
<param index="1" name="to" type="float" />
<param index="2" name="pre" type="float" />
<param index="3" name="post" type="float" />
<param index="4" name="weight" type="float" />
<param index="5" name="to_t" type="float" />
<param index="6" name="pre_t" type="float" />
<param index="7" name="post_t" type="float" />
<description>
Cubic interpolates between two values by the factor defined in [param weight] with pre and post values.
It can perform smoother interpolation than [code]cubic_interpolate()[/code] by the time values.
</description>
</method>
<method name="db2linear">
<return type="float" />
<param index="0" name="db" type="float" />

3
doc/classes/Animation.xml
View file

@ -619,6 +619,9 @@
<constant name="INTERPOLATION_CUBIC" value="2" enum="InterpolationType">
Cubic interpolation.
</constant>
<constant name="INTERPOLATION_CUBIC_IN_TIME" value="3" enum="InterpolationType">
Cubic interpolation with uniformed time.
</constant>
<constant name="UPDATE_CONTINUOUS" value="0" enum="UpdateMode">
Update between keyframes.
</constant>

14
doc/classes/Quaternion.xml
View file

@ -171,6 +171,20 @@
Performs a spherical cubic interpolation between quaternions [param pre_a], this vector, [param b], and [param post_b], by the given amount [param weight].
</description>
</method>
<method name="spherical_cubic_interpolate_in_time" qualifiers="const">
<return type="Quaternion" />
<param index="0" name="b" type="Quaternion" />
<param index="1" name="pre_a" type="Quaternion" />
<param index="2" name="post_b" type="Quaternion" />
<param index="3" name="weight" type="float" />
<param index="4" name="b_t" type="float" />
<param index="5" name="pre_a_t" type="float" />
<param index="6" name="post_b_t" type="float" />
<description>
Performs a spherical cubic interpolation between quaternions [param pre_a], this vector, [param b], and [param post_b], by the given amount [param weight].
It can perform smoother interpolation than [code]spherical_cubic_interpolate()[/code] by the time values.
</description>
</method>
</methods>
<members>
<member name="w" type="float" setter="" getter="" default="1.0">

14
doc/classes/Vector2.xml
View file

@ -135,6 +135,20 @@
Cubically interpolates between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
</description>
</method>
<method name="cubic_interpolate_in_time" qualifiers="const">
<return type="Vector2" />
<param index="0" name="b" type="Vector2" />
<param index="1" name="pre_a" type="Vector2" />
<param index="2" name="post_b" type="Vector2" />
<param index="3" name="weight" type="float" />
<param index="4" name="b_t" type="float" />
<param index="5" name="pre_a_t" type="float" />
<param index="6" name="post_b_t" type="float" />
<description>
Cubically interpolates between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
It can perform smoother interpolation than [code]cubic_interpolate()[/code] by the time values.
</description>
</method>
<method name="direction_to" qualifiers="const">
<return type="Vector2" />
<param index="0" name="to" type="Vector2" />

14
doc/classes/Vector3.xml
View file

@ -109,6 +109,20 @@
Performs a cubic interpolation between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
</description>
</method>
<method name="cubic_interpolate_in_time" qualifiers="const">
<return type="Vector3" />
<param index="0" name="b" type="Vector3" />
<param index="1" name="pre_a" type="Vector3" />
<param index="2" name="post_b" type="Vector3" />
<param index="3" name="weight" type="float" />
<param index="4" name="b_t" type="float" />
<param index="5" name="pre_a_t" type="float" />
<param index="6" name="post_b_t" type="float" />
<description>
Performs a cubic interpolation between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
It can perform smoother interpolation than [code]cubic_interpolate()[/code] by the time values.
</description>
</method>
<method name="direction_to" qualifiers="const">
<return type="Vector3" />
<param index="0" name="to" type="Vector3" />

14
doc/classes/Vector4.xml
View file

@ -73,6 +73,20 @@
Performs a cubic interpolation between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
</description>
</method>
<method name="cubic_interpolate_in_time" qualifiers="const">
<return type="Vector4" />
<param index="0" name="b" type="Vector4" />
<param index="1" name="pre_a" type="Vector4" />
<param index="2" name="post_b" type="Vector4" />
<param index="3" name="weight" type="float" />
<param index="4" name="b_t" type="float" />
<param index="5" name="pre_a_t" type="float" />
<param index="6" name="post_b_t" type="float" />
<description>
Performs a cubic interpolation between this vector and [param b] using [param pre_a] and [param post_b] as handles, and returns the result at position [param weight]. [param weight] is on the range of 0.0 to 1.0, representing the amount of interpolation.
It can perform smoother interpolation than [code]cubic_interpolate()[/code] by the time values.
</description>
</method>
<method name="direction_to" qualifiers="const">
<return type="Vector4" />
<param index="0" name="to" type="Vector4" />

10
editor/animation_track_editor.cpp
View file

@ -2114,11 +2114,11 @@ void AnimationTrackEdit::_notification(int p_what) {
get_theme_icon(SNAME("InterpWrapClamp"), SNAME("EditorIcons")),
get_theme_icon(SNAME("InterpWrapLoop"), SNAME("EditorIcons")),
};
Ref<Texture2D> interp_icon[3] = {
Ref<Texture2D> interp_icon[4] = {
get_theme_icon(SNAME("InterpRaw"), SNAME("EditorIcons")),
get_theme_icon(SNAME("InterpLinear"), SNAME("EditorIcons")),
get_theme_icon(SNAME("InterpCubic"), SNAME("EditorIcons"))
get_theme_icon(SNAME("InterpCubic"), SNAME("EditorIcons")),
get_theme_icon(SNAME("InterpCubicInTime"), SNAME("EditorIcons"))
};
Ref<Texture2D> cont_icon[4] = {
get_theme_icon(SNAME("TrackContinuous"), SNAME("EditorIcons")),
@ -2831,6 +2831,7 @@ void AnimationTrackEdit::gui_input(const Ref<InputEvent> &p_event) {
menu->add_icon_item(get_theme_icon(SNAME("InterpRaw"), SNAME("EditorIcons")), TTR("Nearest"), MENU_INTERPOLATION_NEAREST);
menu->add_icon_item(get_theme_icon(SNAME("InterpLinear"), SNAME("EditorIcons")), TTR("Linear"), MENU_INTERPOLATION_LINEAR);
menu->add_icon_item(get_theme_icon(SNAME("InterpCubic"), SNAME("EditorIcons")), TTR("Cubic"), MENU_INTERPOLATION_CUBIC);
menu->add_icon_item(get_theme_icon(SNAME("InterpCubicInTime"), SNAME("EditorIcons")), TTR("CubicInTime"), MENU_INTERPOLATION_CUBIC_IN_TIME);
menu->reset_size();
Vector2 popup_pos = get_screen_position() + interp_mode_rect.position + Vector2(0, interp_mode_rect.size.height);
@ -3171,7 +3172,8 @@ void AnimationTrackEdit::_menu_selected(int p_index) {
} break;
case MENU_INTERPOLATION_NEAREST:
case MENU_INTERPOLATION_LINEAR:
case MENU_INTERPOLATION_CUBIC: {
case MENU_INTERPOLATION_CUBIC:
case MENU_INTERPOLATION_CUBIC_IN_TIME: {
Animation::InterpolationType interp_mode = Animation::InterpolationType(p_index - MENU_INTERPOLATION_NEAREST);
undo_redo->create_action(TTR("Change Animation Interpolation Mode"));
undo_redo->add_do_method(animation.ptr(), "track_set_interpolation_type", track, interp_mode);

5
editor/animation_track_editor.h
View file

@ -143,6 +143,7 @@ class AnimationTrackEdit : public Control {
MENU_INTERPOLATION_NEAREST,
MENU_INTERPOLATION_LINEAR,
MENU_INTERPOLATION_CUBIC,
MENU_INTERPOLATION_CUBIC_IN_TIME,
MENU_LOOP_WRAP,
MENU_LOOP_CLAMP,
MENU_KEY_INSERT,
@ -486,9 +487,9 @@ class AnimationTrackEditor : public VBoxContainer {
NodePath full_path;
NodePath base_path;
Animation::TrackType track_type = Animation::TYPE_ANIMATION;
Animation::InterpolationType interp_type = Animation::INTERPOLATION_CUBIC;
Animation::InterpolationType interp_type = Animation::INTERPOLATION_CUBIC_IN_TIME;
Animation::UpdateMode update_mode = Animation::UPDATE_CAPTURE;
Animation::LoopMode loop_mode = Animation::LOOP_LINEAR;
Animation::LoopMode loop_mode = Animation::LOOP_PINGPONG;
bool loop_wrap = false;
bool enabled = false;

1
editor/icons/InterpCubicInTime.svg Normal file
View file

@ -0,0 +1 @@
<svg enable-background="new -595.5 420.5 16 8" height="8" viewBox="-595.5 420.5 16 8" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m-593.5 426.5c1-4 3.5-5.5 6-2s5 2 6-2" fill="none" stroke="#ff92cb" stroke-linecap="round" stroke-width="2"/></svg>
Side by side

After

Width:  |  Height:  |  Size: 257 B

165
scene/resources/animation.cpp
View file

@ -967,7 +967,6 @@ int Animation::find_track(const NodePath &p_path, const TrackType p_type) const
void Animation::track_set_interpolation_type(int p_track, InterpolationType p_interp) {
ERR_FAIL_INDEX(p_track, tracks.size());
ERR_FAIL_INDEX(p_interp, 3);
tracks[p_track]->interpolation = p_interp;
emit_changed();
}
@ -2283,6 +2282,8 @@ int Animation::_find(const Vector<K> &p_keys, double p_time, bool p_backward) co
return middle;
}
// Linear interpolation for anytype.
Vector3 Animation::_interpolate(const Vector3 &p_a, const Vector3 &p_b, real_t p_c) const {
return p_a.lerp(p_b, p_c);
}
@ -2301,6 +2302,8 @@ real_t Animation::_interpolate(const real_t &p_a, const real_t &p_b, real_t p_c)
return p_a * (1.0 - p_c) + p_b * p_c;
}
// Cubic interpolation for anytype.
Vector3 Animation::_cubic_interpolate(const Vector3 &p_pre_a, const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_post_b, real_t p_c) const {
return p_a.cubic_interpolate(p_b, p_pre_a, p_post_b, p_c);
}
@ -2389,6 +2392,96 @@ real_t Animation::_cubic_interpolate(const real_t &p_pre_a, const real_t &p_a, c
return _interpolate(p_a, p_b, p_c);
}
// Cubic interpolation in time for anytype.
Vector3 Animation::_cubic_interpolate_in_time(const Vector3 &p_pre_a, const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const {
return p_a.cubic_interpolate_in_time(p_b, p_pre_a, p_post_b, p_c, p_b_t, p_pre_a_t, p_post_b_t);
}
Quaternion Animation::_cubic_interpolate_in_time(const Quaternion &p_pre_a, const Quaternion &p_a, const Quaternion &p_b, const Quaternion &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const {
return p_a.spherical_cubic_interpolate_in_time(p_b, p_pre_a, p_post_b, p_c, p_b_t, p_pre_a_t, p_post_b_t);
}
Variant Animation::_cubic_interpolate_in_time(const Variant &p_pre_a, const Variant &p_a, const Variant &p_b, const Variant &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const {
Variant::Type type_a = p_a.get_type();
Variant::Type type_b = p_b.get_type();
Variant::Type type_pa = p_pre_a.get_type();
Variant::Type type_pb = p_post_b.get_type();
//make int and real play along
uint32_t vformat = 1 << type_a;
vformat |= 1 << type_b;
vformat |= 1 << type_pa;
vformat |= 1 << type_pb;
if (vformat == ((1 << Variant::INT) | (1 << Variant::FLOAT)) || vformat == (1 << Variant::FLOAT)) {
//mix of real and int
real_t a = p_a;
real_t b = p_b;
real_t pa = p_pre_a;
real_t pb = p_post_b;
return Math::cubic_interpolate_in_time(a, b, pa, pb, p_c, p_b_t, p_pre_a_t, p_post_b_t);
} else if ((vformat & (vformat - 1))) {
return p_a; //can't interpolate, mix of types
}
switch (type_a) {
case Variant::VECTOR2: {
Vector2 a = p_a;
Vector2 b = p_b;
Vector2 pa = p_pre_a;
Vector2 pb = p_post_b;
return a.cubic_interpolate_in_time(b, pa, pb, p_c, p_b_t, p_pre_a_t, p_post_b_t);
}
case Variant::RECT2: {
Rect2 a = p_a;
Rect2 b = p_b;
Rect2 pa = p_pre_a;
Rect2 pb = p_post_b;
return Rect2(
a.position.cubic_interpolate_in_time(b.position, pa.position, pb.position, p_c, p_b_t, p_pre_a_t, p_post_b_t),
a.size.cubic_interpolate_in_time(b.size, pa.size, pb.size, p_c, p_b_t, p_pre_a_t, p_post_b_t));
}
case Variant::VECTOR3: {
Vector3 a = p_a;
Vector3 b = p_b;
Vector3 pa = p_pre_a;
Vector3 pb = p_post_b;
return a.cubic_interpolate_in_time(b, pa, pb, p_c, p_b_t, p_pre_a_t, p_post_b_t);
}
case Variant::QUATERNION: {
Quaternion a = p_a;
Quaternion b = p_b;
Quaternion pa = p_pre_a;
Quaternion pb = p_post_b;
return a.spherical_cubic_interpolate_in_time(b, pa, pb, p_c, p_b_t, p_pre_a_t, p_post_b_t);
}
case Variant::AABB: {
AABB a = p_a;
AABB b = p_b;
AABB pa = p_pre_a;
AABB pb = p_post_b;
return AABB(
a.position.cubic_interpolate_in_time(b.position, pa.position, pb.position, p_c, p_b_t, p_pre_a_t, p_post_b_t),
a.size.cubic_interpolate_in_time(b.size, pa.size, pb.size, p_c, p_b_t, p_pre_a_t, p_post_b_t));
}
default: {
return _interpolate(p_a, p_b, p_c);
}
}
}
real_t Animation::_cubic_interpolate_in_time(const real_t &p_pre_a, const real_t &p_a, const real_t &p_b, const real_t &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const {
return _interpolate(p_a, p_b, p_c);
}
template <class T>
T Animation::_interpolate(const Vector<TKey<T>> &p_keys, double p_time, InterpolationType p_interp, bool p_loop_wrap, bool *p_ok, bool p_backward) const {
int len = _find(p_keys, length) + 1; // try to find last key (there may be more past the end)
@ -2568,26 +2661,65 @@ T Animation::_interpolate(const Vector<TKey<T>> &p_keys, double p_time, Interpol
case INTERPOLATION_LINEAR: {
return _interpolate(p_keys[idx].value, p_keys[next].value, c);
} break;
case INTERPOLATION_CUBIC: {
int pre = idx - 1;
if (pre < 0) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
pre = len - 1;
} else {
pre = 0;
case INTERPOLATION_CUBIC:
case INTERPOLATION_CUBIC_IN_TIME: {
int pre = 0;
int post = 0;
if (!p_backward) {
pre = idx - 1;
if (pre < 0) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
pre = len - 1;
} else {
pre = 0;
}
}
}
int post = next + 1;
if (post >= len) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
post = 0;
} else {
post = next;
post = next + 1;
if (post >= len) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
post = 0;
} else {
post = next;
}
}
} else {
pre = idx + 1;
if (pre >= len) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
pre = 0;
} else {
pre = idx;
}
}
post = next - 1;
if (post < 0) {
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
post = len - 1;
} else {
post = 0;
}
}
}
return _cubic_interpolate(p_keys[pre].value, p_keys[idx].value, p_keys[next].value, p_keys[post].value, c);
if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
if (p_interp == INTERPOLATION_CUBIC) {
return _cubic_interpolate(p_keys[pre].value, p_keys[idx].value, p_keys[next].value, p_keys[post].value, c);
}
return _cubic_interpolate_in_time(
p_keys[pre].value, p_keys[idx].value, p_keys[next].value, p_keys[post].value, c,
pre > idx ? -length + p_keys[pre].time - p_keys[idx].time : p_keys[pre].time - p_keys[idx].time,
next < idx ? length + p_keys[next].time - p_keys[idx].time : p_keys[next].time - p_keys[idx].time,
next < idx || post <= idx ? length + p_keys[post].time - p_keys[idx].time : p_keys[post].time - p_keys[idx].time);
}
if (p_interp == INTERPOLATION_CUBIC) {
return _cubic_interpolate(p_keys[pre].value, p_keys[idx].value, p_keys[next].value, p_keys[post].value, c);
}
return _cubic_interpolate_in_time(
p_keys[pre].value, p_keys[idx].value, p_keys[next].value, p_keys[post].value, c,
p_keys[pre].time - p_keys[idx].time,
p_keys[next].time - p_keys[idx].time,
p_keys[post].time - p_keys[idx].time);
} break;
default:
return p_keys[idx].value;
@ -3839,6 +3971,7 @@ void Animation::_bind_methods() {
BIND_ENUM_CONSTANT(INTERPOLATION_NEAREST);
BIND_ENUM_CONSTANT(INTERPOLATION_LINEAR);
BIND_ENUM_CONSTANT(INTERPOLATION_CUBIC);
BIND_ENUM_CONSTANT(INTERPOLATION_CUBIC_IN_TIME);
BIND_ENUM_CONSTANT(UPDATE_CONTINUOUS);
BIND_ENUM_CONSTANT(UPDATE_DISCRETE);

8
scene/resources/animation.h
View file

@ -56,7 +56,8 @@ public:
enum InterpolationType {
INTERPOLATION_NEAREST,
INTERPOLATION_LINEAR,
INTERPOLATION_CUBIC
INTERPOLATION_CUBIC,
INTERPOLATION_CUBIC_IN_TIME,
};
enum UpdateMode {
@ -231,6 +232,11 @@ private:
_FORCE_INLINE_ Variant _cubic_interpolate(const Variant &p_pre_a, const Variant &p_a, const Variant &p_b, const Variant &p_post_b, real_t p_c) const;
_FORCE_INLINE_ real_t _cubic_interpolate(const real_t &p_pre_a, const real_t &p_a, const real_t &p_b, const real_t &p_post_b, real_t p_c) const;
_FORCE_INLINE_ Vector3 _cubic_interpolate_in_time(const Vector3 &p_pre_a, const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const;
_FORCE_INLINE_ Quaternion _cubic_interpolate_in_time(const Quaternion &p_pre_a, const Quaternion &p_a, const Quaternion &p_b, const Quaternion &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const;
_FORCE_INLINE_ Variant _cubic_interpolate_in_time(const Variant &p_pre_a, const Variant &p_a, const Variant &p_b, const Variant &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const;
_FORCE_INLINE_ real_t _cubic_interpolate_in_time(const real_t &p_pre_a, const real_t &p_a, const real_t &p_b, const real_t &p_post_b, real_t p_c, real_t p_pre_a_t, real_t p_b_t, real_t p_post_b_t) const;
template <class T>
_FORCE_INLINE_ T _interpolate(const Vector<TKey<T>> &p_keys, double p_time, InterpolationType p_interp, bool p_loop_wrap, bool *p_ok, bool p_backward = false) const;