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Rename `iterations_per_second` to `physics_ticks_per_second` 

This makes it clearer that this property is only about physics FPS,
not rendering FPS.

The `physics_fps` project setting was also renamed to
`physics_ticks_per_second` for consistency.
This commit is contained in:
Hugo Locurcio 2021-08-11 02:35:16 +02:00
parent 18bd0fee5a
commit 937c1a716c
No known key found for this signature in database
GPG Key ID: 39E8F8BE30B0A49C
11 changed files with 46 additions and 46 deletions
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4
core/config/engine.cpp
View File

@ -37,12 +37,12 @@
#include "core/version.h"
#include "core/version_hash.gen.h"
void Engine::set_iterations_per_second(int p_ips) {
void Engine::set_physics_ticks_per_second(int p_ips) {
ERR_FAIL_COND_MSG(p_ips <= 0, "Engine iterations per second must be greater than 0.");
ips = p_ips;
}
int Engine::get_iterations_per_second() const {
int Engine::get_physics_ticks_per_second() const {
return ips;
}

4
core/config/engine.h
View File

@ -78,8 +78,8 @@ private:
public:
static Engine *get_singleton();
virtual void set_iterations_per_second(int p_ips);
virtual int get_iterations_per_second() const;
virtual void set_physics_ticks_per_second(int p_ips);
virtual int get_physics_ticks_per_second() const;
void set_physics_jitter_fix(double p_threshold);
double get_physics_jitter_fix() const;

14
core/core_bind.cpp
View File

@ -2077,12 +2077,12 @@ void _ClassDB::_bind_methods() {
////// _Engine //////
void _Engine::set_iterations_per_second(int p_ips) {
Engine::get_singleton()->set_iterations_per_second(p_ips);
void _Engine::set_physics_ticks_per_second(int p_ips) {
Engine::get_singleton()->set_physics_ticks_per_second(p_ips);
}
int _Engine::get_iterations_per_second() const {
return Engine::get_singleton()->get_iterations_per_second();
int _Engine::get_physics_ticks_per_second() const {
return Engine::get_singleton()->get_physics_ticks_per_second();
}
void _Engine::set_physics_jitter_fix(double p_threshold) {
@ -2187,8 +2187,8 @@ bool _Engine::is_printing_error_messages() const {
}
void _Engine::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_iterations_per_second", "iterations_per_second"), &_Engine::set_iterations_per_second);
ClassDB::bind_method(D_METHOD("get_iterations_per_second"), &_Engine::get_iterations_per_second);
ClassDB::bind_method(D_METHOD("set_physics_ticks_per_second", "physics_ticks_per_second"), &_Engine::set_physics_ticks_per_second);
ClassDB::bind_method(D_METHOD("get_physics_ticks_per_second"), &_Engine::get_physics_ticks_per_second);
ClassDB::bind_method(D_METHOD("set_physics_jitter_fix", "physics_jitter_fix"), &_Engine::set_physics_jitter_fix);
ClassDB::bind_method(D_METHOD("get_physics_jitter_fix"), &_Engine::get_physics_jitter_fix);
ClassDB::bind_method(D_METHOD("get_physics_interpolation_fraction"), &_Engine::get_physics_interpolation_fraction);
@ -2225,7 +2225,7 @@ void _Engine::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editor_hint"), "set_editor_hint", "is_editor_hint");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "print_error_messages"), "set_print_error_messages", "is_printing_error_messages");
ADD_PROPERTY(PropertyInfo(Variant::INT, "iterations_per_second"), "set_iterations_per_second", "get_iterations_per_second");
ADD_PROPERTY(PropertyInfo(Variant::INT, "physics_ticks_per_second"), "set_physics_ticks_per_second", "get_physics_ticks_per_second");
ADD_PROPERTY(PropertyInfo(Variant::INT, "target_fps"), "set_target_fps", "get_target_fps");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "time_scale"), "set_time_scale", "get_time_scale");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "physics_jitter_fix"), "set_physics_jitter_fix", "get_physics_jitter_fix");

4
core/core_bind.h
View File

@ -623,8 +623,8 @@ protected:
public:
static _Engine *get_singleton() { return singleton; }
void set_iterations_per_second(int p_ips);
int get_iterations_per_second() const;
void set_physics_ticks_per_second(int p_ips);
int get_physics_ticks_per_second() const;
void set_physics_jitter_fix(double p_threshold);
double get_physics_jitter_fix() const;

8
doc/classes/Engine.xml
View File

@ -149,20 +149,20 @@
See [url=https://docs.godotengine.org/en/latest/tutorials/plugins/running_code_in_the_editor.html]Running code in the editor[/url] in the documentation for more information.
[b]Note:[/b] To detect whether the script is run from an editor [i]build[/i] (e.g. when pressing [kbd]F5[/kbd]), use [method OS.has_feature] with the [code]"editor"[/code] argument instead. [code]OS.has_feature("editor")[/code] will evaluate to [code]true[/code] both when the code is running in the editor and when running the project from the editor, but it will evaluate to [code]false[/code] when the code is run from an exported project.
</member>
<member name="iterations_per_second" type="int" setter="set_iterations_per_second" getter="get_iterations_per_second" default="60">
The number of fixed iterations per second. This controls how often physics simulation and [method Node._physics_process] methods are run. This value should generally always be set to [code]60[/code] or above, as Godot doesn't interpolate the physics step. As a result, values lower than [code]60[/code] will look stuttery. This value can be increased to make input more reactive or work around tunneling issues, but keep in mind doing so will increase CPU usage.
</member>
<member name="physics_jitter_fix" type="float" setter="set_physics_jitter_fix" getter="get_physics_jitter_fix" default="0.5">
Controls how much physics ticks are synchronized with real time. For 0 or less, the ticks are synchronized. Such values are recommended for network games, where clock synchronization matters. Higher values cause higher deviation of the in-game clock and real clock but smooth out framerate jitters. The default value of 0.5 should be fine for most; values above 2 could cause the game to react to dropped frames with a noticeable delay and are not recommended.
[b]Note:[/b] For best results, when using a custom physics interpolation solution, the physics jitter fix should be disabled by setting [member physics_jitter_fix] to [code]0[/code].
</member>
<member name="physics_ticks_per_second" type="int" setter="set_physics_ticks_per_second" getter="get_physics_ticks_per_second" default="60">
The number of fixed iterations per second. This controls how often physics simulation and [method Node._physics_process] methods are run. This value should generally always be set to [code]60[/code] or above, as Godot doesn't interpolate the physics step. As a result, values lower than [code]60[/code] will look stuttery. This value can be increased to make input more reactive or work around tunneling issues, but keep in mind doing so will increase CPU usage. See also [member target_fps].
</member>
<member name="print_error_messages" type="bool" setter="set_print_error_messages" getter="is_printing_error_messages" default="true">
If [code]false[/code], stops printing error and warning messages to the console and editor Output log. This can be used to hide error and warning messages during unit test suite runs. This property is equivalent to the [member ProjectSettings.application/run/disable_stderr] project setting.
[b]Warning:[/b] If you set this to [code]false[/code] anywhere in the project, important error messages may be hidden even if they are emitted from other scripts. If this is set to [code]false[/code] in a [code]@tool[/code] script, this will also impact the editor itself. Do [i]not[/i] report bugs before ensuring error messages are enabled (as they are by default).
[b]Note:[/b] This property does not impact the editor's Errors tab when running a project from the editor.
</member>
<member name="target_fps" type="int" setter="set_target_fps" getter="get_target_fps" default="0">
The desired frames per second. If the hardware cannot keep up, this setting may not be respected. A value of 0 means no limit.
The desired frames per second. If the hardware cannot keep up, this setting may not be respected. A value of 0 means no limit. See also [member physics_ticks_per_second].
</member>
<member name="time_scale" type="float" setter="set_time_scale" getter="get_time_scale" default="1.0">
Controls how fast or slow the in-game clock ticks versus the real life one. It defaults to 1.0. A value of 2.0 means the game moves twice as fast as real life, whilst a value of 0.5 means the game moves at half the regular speed.

4
doc/classes/Node.xml
View File

@ -325,7 +325,7 @@
<method name="get_physics_process_delta_time" qualifiers="const">
<return type="float" />
<description>
Returns the time elapsed (in seconds) since the last physics-bound frame (see [method _physics_process]). This is always a constant value in physics processing unless the frames per second is changed via [member Engine.iterations_per_second].
Returns the time elapsed (in seconds) since the last physics-bound frame (see [method _physics_process]). This is always a constant value in physics processing unless the frames per second is changed via [member Engine.physics_ticks_per_second].
</description>
</method>
<method name="get_process_delta_time" qualifiers="const">
@ -605,7 +605,7 @@
<return type="void" />
<argument index="0" name="enable" type="bool" />
<description>
Enables or disables physics (i.e. fixed framerate) processing. When a node is being processed, it will receive a [constant NOTIFICATION_PHYSICS_PROCESS] at a fixed (usually 60 FPS, see [member Engine.iterations_per_second] to change) interval (and the [method _physics_process] callback will be called if exists). Enabled automatically if [method _physics_process] is overridden. Any calls to this before [method _ready] will be ignored.
Enables or disables physics (i.e. fixed framerate) processing. When a node is being processed, it will receive a [constant NOTIFICATION_PHYSICS_PROCESS] at a fixed (usually 60 FPS, see [member Engine.physics_ticks_per_second] to change) interval (and the [method _physics_process] callback will be called if exists). Enabled automatically if [method _physics_process] is overridden. Any calls to this before [method _ready] will be ignored.
</description>
</method>
<method name="set_physics_process_internal">

16
doc/classes/ProjectSettings.xml
View File

@ -1344,7 +1344,7 @@
</member>
<member name="physics/2d/default_angular_damp" type="float" setter="" getter="" default="1.0">
The default angular damp in 2D.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_fps], [code]60[/code] by default) will bring the object to a stop in one iteration.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_ticks_per_second], [code]60[/code] by default) will bring the object to a stop in one iteration.
</member>
<member name="physics/2d/default_gravity" type="float" setter="" getter="" default="980.0">
The default gravity strength in 2D (in pixels per second squared).
@ -1376,7 +1376,7 @@
</member>
<member name="physics/2d/default_linear_damp" type="float" setter="" getter="" default="0.1">
The default linear damp in 2D.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_fps], [code]60[/code] by default) will bring the object to a stop in one iteration.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_ticks_per_second], [code]60[/code] by default) will bring the object to a stop in one iteration.
</member>
<member name="physics/2d/physics_engine" type="String" setter="" getter="" default="&quot;DEFAULT&quot;">
Sets which physics engine to use for 2D physics.
@ -1396,7 +1396,7 @@
</member>
<member name="physics/3d/default_angular_damp" type="float" setter="" getter="" default="0.1">
The default angular damp in 3D.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_fps], [code]60[/code] by default) will bring the object to a stop in one iteration.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_ticks_per_second], [code]60[/code] by default) will bring the object to a stop in one iteration.
</member>
<member name="physics/3d/default_gravity" type="float" setter="" getter="" default="9.8">
The default gravity strength in 3D (in meters per second squared).
@ -1428,7 +1428,7 @@
</member>
<member name="physics/3d/default_linear_damp" type="float" setter="" getter="" default="0.1">
The default linear damp in 3D.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_fps], [code]60[/code] by default) will bring the object to a stop in one iteration.
[b]Note:[/b] Good values are in the range [code]0[/code] to [code]1[/code]. At value [code]0[/code] objects will keep moving with the same velocity. Values greater than [code]1[/code] will aim to reduce the velocity to [code]0[/code] in less than a second e.g. a value of [code]2[/code] will aim to reduce the velocity to [code]0[/code] in half a second. A value equal to or greater than the physics frame rate ([member ProjectSettings.physics/common/physics_ticks_per_second], [code]60[/code] by default) will bring the object to a stop in one iteration.
</member>
<member name="physics/3d/physics_engine" type="String" setter="" getter="" default="&quot;DEFAULT&quot;">
Sets which physics engine to use for 3D physics.
@ -1446,15 +1446,15 @@
<member name="physics/common/enable_object_picking" type="bool" setter="" getter="" default="true">
Enables [member Viewport.physics_object_picking] on the root viewport.
</member>
<member name="physics/common/physics_fps" type="int" setter="" getter="" default="60">
The number of fixed iterations per second. This controls how often physics simulation and [method Node._physics_process] methods are run.
[b]Note:[/b] This property is only read when the project starts. To change the physics FPS at runtime, set [member Engine.iterations_per_second] instead.
</member>
<member name="physics/common/physics_jitter_fix" type="float" setter="" getter="" default="0.5">
Controls how much physics ticks are synchronized with real time. For 0 or less, the ticks are synchronized. Such values are recommended for network games, where clock synchronization matters. Higher values cause higher deviation of in-game clock and real clock, but allows smoothing out framerate jitters. The default value of 0.5 should be fine for most; values above 2 could cause the game to react to dropped frames with a noticeable delay and are not recommended.
[b]Note:[/b] For best results, when using a custom physics interpolation solution, the physics jitter fix should be disabled by setting [member physics/common/physics_jitter_fix] to [code]0[/code].
[b]Note:[/b] This property is only read when the project starts. To change the physics FPS at runtime, set [member Engine.physics_jitter_fix] instead.
</member>
<member name="physics/common/physics_ticks_per_second" type="int" setter="" getter="" default="60">
The number of fixed iterations per second. This controls how often physics simulation and [method Node._physics_process] methods are run.
[b]Note:[/b] This property is only read when the project starts. To change the physics FPS at runtime, set [member Engine.physics_ticks_per_second] instead.
</member>
<member name="rendering/2d/sdf/oversize" type="int" setter="" getter="" default="1">
</member>
<member name="rendering/2d/sdf/scale" type="int" setter="" getter="" default="1">

12
main/main.cpp
View File

@ -1340,9 +1340,9 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
{
window_vsync_mode = DisplayServer::VSyncMode(int(GLOBAL_DEF("display/window/vsync/vsync_mode", DisplayServer::VSyncMode::VSYNC_ENABLED)));
}
Engine::get_singleton()->set_iterations_per_second(GLOBAL_DEF_BASIC("physics/common/physics_fps", 60));
ProjectSettings::get_singleton()->set_custom_property_info("physics/common/physics_fps",
PropertyInfo(Variant::INT, "physics/common/physics_fps",
Engine::get_singleton()->set_physics_ticks_per_second(GLOBAL_DEF_BASIC("physics/common/physics_ticks_per_second", 60));
ProjectSettings::get_singleton()->set_custom_property_info("physics/common/physics_ticks_per_second",
PropertyInfo(Variant::INT, "physics/common/physics_ticks_per_second",
PROPERTY_HINT_RANGE, "1,1000,1"));
Engine::get_singleton()->set_physics_jitter_fix(GLOBAL_DEF("physics/common/physics_jitter_fix", 0.5));
Engine::get_singleton()->set_target_fps(GLOBAL_DEF("debug/settings/fps/force_fps", 0));
@ -2463,12 +2463,12 @@ bool Main::iteration() {
uint64_t ticks_elapsed = ticks - last_ticks;
int physics_fps = Engine::get_singleton()->get_iterations_per_second();
float physics_step = 1.0 / physics_fps;
int physics_ticks_per_second = Engine::get_singleton()->get_physics_ticks_per_second();
float physics_step = 1.0 / physics_ticks_per_second;
float time_scale = Engine::get_singleton()->get_time_scale();
MainFrameTime advance = main_timer_sync.advance(physics_step, physics_fps);
MainFrameTime advance = main_timer_sync.advance(physics_step, physics_ticks_per_second);
double process_step = advance.process_step;
double scaled_step = process_step * time_scale;

16
main/main_timer_sync.cpp
View File

@ -73,14 +73,14 @@ int MainTimerSync::get_average_physics_steps(double &p_min, double &p_max) {
}
// advance physics clock by p_process_step, return appropriate number of steps to simulate
MainFrameTime MainTimerSync::advance_core(double p_physics_step, int p_physics_fps, double p_process_step) {
MainFrameTime MainTimerSync::advance_core(double p_physics_step, int p_physics_ticks_per_second, double p_process_step) {
MainFrameTime ret;
ret.process_step = p_process_step;
// simple determination of number of physics iteration
time_accum += ret.process_step;
ret.physics_steps = floor(time_accum * p_physics_fps);
ret.physics_steps = floor(time_accum * p_physics_ticks_per_second);
int min_typical_steps = typical_physics_steps[0];
int max_typical_steps = min_typical_steps + 1;
@ -107,7 +107,7 @@ MainFrameTime MainTimerSync::advance_core(double p_physics_step, int p_physics_f
// try to keep it consistent with previous iterations
if (ret.physics_steps < min_typical_steps) {
const int max_possible_steps = floor((time_accum)*p_physics_fps + get_physics_jitter_fix());
const int max_possible_steps = floor((time_accum)*p_physics_ticks_per_second + get_physics_jitter_fix());
if (max_possible_steps < min_typical_steps) {
ret.physics_steps = max_possible_steps;
update_typical = true;
@ -115,7 +115,7 @@ MainFrameTime MainTimerSync::advance_core(double p_physics_step, int p_physics_f
ret.physics_steps = min_typical_steps;
}
} else if (ret.physics_steps > max_typical_steps) {
const int min_possible_steps = floor((time_accum)*p_physics_fps - get_physics_jitter_fix());
const int min_possible_steps = floor((time_accum)*p_physics_ticks_per_second - get_physics_jitter_fix());
if (min_possible_steps > max_typical_steps) {
ret.physics_steps = min_possible_steps;
update_typical = true;
@ -146,7 +146,7 @@ MainFrameTime MainTimerSync::advance_core(double p_physics_step, int p_physics_f
}
// calls advance_core, keeps track of deficit it adds to animaption_step, make sure the deficit sum stays close to zero
MainFrameTime MainTimerSync::advance_checked(double p_physics_step, int p_physics_fps, double p_process_step) {
MainFrameTime MainTimerSync::advance_checked(double p_physics_step, int p_physics_ticks_per_second, double p_process_step) {
if (fixed_fps != -1) {
p_process_step = 1.0 / fixed_fps;
}
@ -154,7 +154,7 @@ MainFrameTime MainTimerSync::advance_checked(double p_physics_step, int p_physic
// compensate for last deficit
p_process_step += time_deficit;
MainFrameTime ret = advance_core(p_physics_step, p_physics_fps, p_process_step);
MainFrameTime ret = advance_core(p_physics_step, p_physics_ticks_per_second, p_process_step);
// we will do some clamping on ret.process_step and need to sync those changes to time_accum,
// that's easiest if we just remember their fixed difference now
@ -220,8 +220,8 @@ void MainTimerSync::set_fixed_fps(int p_fixed_fps) {
}
// advance one physics frame, return timesteps to take
MainFrameTime MainTimerSync::advance(double p_physics_step, int p_physics_fps) {
MainFrameTime MainTimerSync::advance(double p_physics_step, int p_physics_ticks_per_second) {
double cpu_process_step = get_cpu_process_step();
return advance_checked(p_physics_step, p_physics_fps, cpu_process_step);
return advance_checked(p_physics_step, p_physics_ticks_per_second, cpu_process_step);
}

6
main/main_timer_sync.h
View File

@ -77,10 +77,10 @@ protected:
int get_average_physics_steps(double &p_min, double &p_max);
// advance physics clock by p_process_step, return appropriate number of steps to simulate
MainFrameTime advance_core(double p_physics_step, int p_physics_fps, double p_process_step);
MainFrameTime advance_core(double p_physics_step, int p_physics_ticks_per_second, double p_process_step);
// calls advance_core, keeps track of deficit it adds to animaption_step, make sure the deficit sum stays close to zero
MainFrameTime advance_checked(double p_physics_step, int p_physics_fps, double p_process_step);
MainFrameTime advance_checked(double p_physics_step, int p_physics_ticks_per_second, double p_process_step);
// determine wall clock step since last iteration
double get_cpu_process_step();
@ -96,7 +96,7 @@ public:
void set_fixed_fps(int p_fixed_fps);
// advance one frame, return timesteps to take
MainFrameTime advance(double p_physics_step, int p_physics_fps);
MainFrameTime advance(double p_physics_step, int p_physics_ticks_per_second);
};
#endif // MAIN_TIMER_SYNC_H

4
scene/3d/velocity_tracker_3d.cpp
View File

@ -70,7 +70,7 @@ Vector3 VelocityTracker3D::get_tracked_linear_velocity() const {
if (position_history_len) {
if (physics_step) {
uint64_t base = Engine::get_singleton()->get_physics_frames();
base_time = double(base - position_history[0].frame) / Engine::get_singleton()->get_iterations_per_second();
base_time = double(base - position_history[0].frame) / Engine::get_singleton()->get_physics_ticks_per_second();
} else {
uint64_t base = Engine::get_singleton()->get_frame_ticks();
base_time = double(base - position_history[0].frame) / 1000000.0;
@ -83,7 +83,7 @@ Vector3 VelocityTracker3D::get_tracked_linear_velocity() const {
Vector3 distance = position_history[i].position - position_history[i + 1].position;
if (physics_step) {
delta = double(diff) / Engine::get_singleton()->get_iterations_per_second();
delta = double(diff) / Engine::get_singleton()->get_physics_ticks_per_second();
} else {
delta = double(diff) / 1000000.0;
}