easing.cc File Reference

#include "BLI_math_base.h"
#include "BLI_easing.h"
#include "BLI_strict_flags.h"

Go to the source code of this file.

Macros
#define	USE_ELASTIC_BLEND

Functions
float	BLI_easing_back_ease_in (float time, float begin, float change, float duration, float overshoot)
float	BLI_easing_back_ease_out (float time, float begin, float change, float duration, float overshoot)
float	BLI_easing_back_ease_in_out (float time, float begin, float change, float duration, float overshoot)
float	BLI_easing_bounce_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_bounce_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_bounce_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_circ_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_circ_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_circ_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_cubic_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_cubic_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_cubic_ease_in_out (float time, float begin, float change, float duration)
static float	elastic_blend (float time, float change, float duration, float amplitude, float s, float f)
float	BLI_easing_elastic_ease_in (float time, float begin, float change, float duration, float amplitude, float period)
float	BLI_easing_elastic_ease_out (float time, float begin, float change, float duration, float amplitude, float period)
float	BLI_easing_elastic_ease_in_out (float time, float begin, float change, float duration, float amplitude, float period)
float	BLI_easing_expo_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_expo_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_expo_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_linear_ease (float time, float begin, float change, float duration)
float	BLI_easing_quad_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_quad_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_quad_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_quart_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_quart_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_quart_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_quint_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_quint_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_quint_ease_in_out (float time, float begin, float change, float duration)
float	BLI_easing_sine_ease_in (float time, float begin, float change, float duration)
float	BLI_easing_sine_ease_out (float time, float begin, float change, float duration)
float	BLI_easing_sine_ease_in_out (float time, float begin, float change, float duration)

Variables
static const float	pow_min = 0.0009765625f
static const float	pow_scale = 1.0f / (1.0f - 0.0009765625f)

Macro Definition Documentation

USE_ELASTIC_BLEND

#define USE_ELASTIC_BLEND

Definition at line 16 of file easing.cc.

Function Documentation

BLI_easing_back_ease_in()

float BLI_easing_back_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	overshoot )

Definition at line 18 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_back_ease_in_out()

float BLI_easing_back_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	overshoot )

Definition at line 32 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_back_ease_out()

float BLI_easing_back_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	overshoot )

Definition at line 25 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_bounce_ease_in()

float BLI_easing_bounce_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 61 of file easing.cc.

References begin(), and BLI_easing_bounce_ease_out().

Referenced by BLI_easing_bounce_ease_in_out(), fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_bounce_ease_in_out()

float BLI_easing_bounce_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 66 of file easing.cc.

References begin(), BLI_easing_bounce_ease_in(), and BLI_easing_bounce_ease_out().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_bounce_ease_out()

float BLI_easing_bounce_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 43 of file easing.cc.

References begin().

Referenced by BLI_easing_bounce_ease_in(), BLI_easing_bounce_ease_in_out(), fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_circ_ease_in()

float BLI_easing_circ_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 75 of file easing.cc.

References begin(), and sqrtf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_circ_ease_in_out()

float BLI_easing_circ_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 87 of file easing.cc.

References begin(), and sqrtf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_circ_ease_out()

float BLI_easing_circ_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 81 of file easing.cc.

References begin(), and sqrtf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_cubic_ease_in()

float BLI_easing_cubic_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 96 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_cubic_ease_in_out()

float BLI_easing_cubic_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 108 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc(), blender::ed::space_node::node_add_nodes_modal(), and blender::ed::space_node::node_insert_offset_modal().

BLI_easing_cubic_ease_out()

float BLI_easing_cubic_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 102 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_elastic_ease_in()

float BLI_easing_elastic_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	amplitude,
		float	period )

Definition at line 146 of file easing.cc.

References asinf, begin(), elastic_blend(), fabsf, M_PI, powf, and sinf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_elastic_ease_in_out()

float BLI_easing_elastic_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	amplitude,
		float	period )

Definition at line 211 of file easing.cc.

References asinf, begin(), elastic_blend(), fabsf, M_PI, powf, and sinf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_elastic_ease_out()

float BLI_easing_elastic_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration,
		float	amplitude,
		float	period )

Definition at line 179 of file easing.cc.

References asinf, begin(), elastic_blend(), fabsf, M_PI, powf, and sinf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_expo_ease_in()

float BLI_easing_expo_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 255 of file easing.cc.

References begin(), pow_min, pow_scale, and powf.

Referenced by BLI_easing_expo_ease_in_out(), fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_expo_ease_in_out()

float BLI_easing_expo_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 271 of file easing.cc.

References begin(), BLI_easing_expo_ease_in(), and BLI_easing_expo_ease_out().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_expo_ease_out()

float BLI_easing_expo_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 263 of file easing.cc.

References begin(), pow_min, pow_scale, and powf.

Referenced by BLI_easing_expo_ease_in_out(), fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_linear_ease()

float BLI_easing_linear_ease	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 282 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate().

BLI_easing_quad_ease_in()

float BLI_easing_quad_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 287 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quad_ease_in_out()

float BLI_easing_quad_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 299 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quad_ease_out()

float BLI_easing_quad_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 293 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quart_ease_in()

float BLI_easing_quart_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 308 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quart_ease_in_out()

float BLI_easing_quart_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 320 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quart_ease_out()

float BLI_easing_quart_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 314 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quint_ease_in()

float BLI_easing_quint_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 329 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quint_ease_in_out()

float BLI_easing_quint_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 339 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_quint_ease_out()

float BLI_easing_quint_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 334 of file easing.cc.

References begin().

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_sine_ease_in()

float BLI_easing_sine_ease_in	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 348 of file easing.cc.

References begin(), cosf, and M_PI_2.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_sine_ease_in_out()

float BLI_easing_sine_ease_in_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 358 of file easing.cc.

References begin(), cosf, and M_PI.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

BLI_easing_sine_ease_out()

float BLI_easing_sine_ease_out	(	float	time,
		float	begin,
		float	change,
		float	duration )

Definition at line 353 of file easing.cc.

References begin(), M_PI_2, and sinf.

Referenced by fcurve_eval_keyframes_interpolate(), and blender::ed::sculpt_paint::greasepencil::grease_pencil_interpolate_sequence_easing_calc().

elastic_blend()

float elastic_blend ( float time, float change, float duration, float amplitude, float s, float f )

static

When the amplitude is less than the change, we need to blend f when we're close to the crossing point (int time), else we get an ugly sharp falloff.

Definition at line 122 of file easing.cc.

References fabsf, and l.

Referenced by BLI_easing_elastic_ease_in(), BLI_easing_elastic_ease_in_out(), and BLI_easing_elastic_ease_out().

Variable Documentation

pow_min

const float pow_min = 0.0009765625f

static

Definition at line 252 of file easing.cc.

Referenced by BLI_easing_expo_ease_in(), and BLI_easing_expo_ease_out().

pow_scale

const float pow_scale = 1.0f / (1.0f - 0.0009765625f)

static

Definition at line 253 of file easing.cc.

Referenced by BLI_easing_expo_ease_in(), and BLI_easing_expo_ease_out().