Physics Interpolation - refactor Camera and fix get_camera_transform()

* Moves 3D Camera interpolation scene side.
* Automatically switches `get_camera_transform()` to report interpolated transform during `_process()`.
* Fixes `ClippedCamera` to work with physics interpolation.
This commit is contained in:
lawnjelly 2024-06-05 07:45:03 +01:00 committed by Relintai
parent 88406b7fbc
commit 1be9006ab0
20 changed files with 375 additions and 201 deletions

View File

@ -35,6 +35,11 @@
#include "core/os/os.h"
#include "core/string/ustring.h"
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
#include "scene/main/node.h"
#include "core/config/project_settings.h"
#endif
static ErrorHandlerList *error_handler_list = nullptr;
void add_error_handler(ErrorHandlerList *p_handler) {
@ -118,3 +123,50 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
void _err_flush_stdout() {
fflush(stdout);
}
// Prevent error spam by limiting the warnings to a certain frequency.
void _physics_interpolation_warning(const char *p_function, const char *p_file, int p_line, ObjectID p_id, const char *p_warn_string) {
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
const uint32_t warn_max = 2048;
const uint32_t warn_timeout_seconds = 15;
static uint32_t warn_count = warn_max;
static uint32_t warn_timeout = warn_timeout_seconds;
uint32_t time_now = UINT32_MAX;
if (warn_count) {
warn_count--;
}
if (!warn_count) {
time_now = OS::get_singleton()->get_ticks_msec() / 1000;
}
if ((warn_count == 0) && (time_now >= warn_timeout)) {
warn_count = warn_max;
warn_timeout = time_now + warn_timeout_seconds;
if (GLOBAL_GET("debug/settings/physics_interpolation/enable_warnings")) {
// UINT64_MAX means unused.
if (p_id == UINT64_MAX) {
_err_print_error(p_function, p_file, p_line, "[Physics interpolation] " + String(p_warn_string) + " (possibly benign).", ERR_HANDLER_WARNING);
} else {
String node_name;
if (p_id != 0) {
if (ObjectDB::get_instance(p_id)) {
Node *node = Object::cast_to<Node>(ObjectDB::get_instance(p_id));
if (node && node->is_inside_tree()) {
node_name = "\"" + String(node->get_path()) + "\"";
} else {
node_name = "\"unknown\"";
}
}
}
_err_print_error(p_function, p_file, p_line, "[Physics interpolation] " + String(p_warn_string) + ": " + node_name + " (possibly benign).", ERR_HANDLER_WARNING);
}
}
}
#endif
}

View File

@ -33,6 +33,7 @@
/*************************************************************************/
#include "core/os/safe_refcount.h"
#include "core/object/object_id.h"
#include "core/typedefs.h"
/**
@ -87,6 +88,8 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
void _err_print_index_error(const char *p_function, const char *p_file, int p_line, int64_t p_index, int64_t p_size, const char *p_index_str, const char *p_size_str, const String &p_message, bool fatal = false);
void _err_flush_stdout();
void _physics_interpolation_warning(const char *p_function, const char *p_file, int p_line, ObjectID p_id, const char *p_warn_string);
#ifndef _STR
#define _STR(m_x) #m_x
#define _MKSTR(m_x) _STR(m_x)
@ -559,4 +562,15 @@ void _err_flush_stdout();
#define DEV_CHECK_ONCE(m_cond)
#endif
#endif
/**
* Physics Interpolation warnings.
* These are spam protection warnings.
*/
#define PHYSICS_INTERPOLATION_NODE_WARNING(m_object_id, m_string) \
_physics_interpolation_warning(FUNCTION_STR, __FILE__, __LINE__, m_object_id, m_string)
#define PHYSICS_INTERPOLATION_WARNING(m_string) \
_physics_interpolation_warning(FUNCTION_STR, __FILE__, __LINE__, UINT64_MAX, m_string)
#endif // ERROR_MACROS_H

View File

@ -45,14 +45,6 @@
Once finished with your RID, you will want to free the RID using the RenderingServer's [method free_rid] static method.
</description>
</method>
<method name="camera_reset_physics_interpolation">
<return type="void" />
<argument index="0" name="camera" type="RID" />
<description>
Prevents physics interpolation for the current physics tick.
This is useful when moving a [Camera] to a new location, to give an instantaneous change rather than interpolation from the previous location.
</description>
</method>
<method name="camera_set_cull_mask">
<return type="void" />
<argument index="0" name="camera" type="RID" />
@ -80,14 +72,6 @@
Sets camera to use frustum projection. This mode allows adjusting the [code]offset[/code] argument to create "tilted frustum" effects.
</description>
</method>
<method name="camera_set_interpolated">
<return type="void" />
<argument index="0" name="camera" type="RID" />
<argument index="1" name="interpolated" type="bool" />
<description>
Turns on and off physics interpolation for the [Camera].
</description>
</method>
<method name="camera_set_orthogonal">
<return type="void" />
<argument index="0" name="camera" type="RID" />

View File

@ -1274,7 +1274,7 @@ void CPUParticles2D::_notification(int p_what) {
}
}
}
if (p_what == NOTIFICATION_RESET_PHYSICS_INTERPOLATION) {
if (p_what == NOTIFICATION_RESET_PHYSICS_INTERPOLATION && is_inside_tree()) {
// Make sure current is up to date with any pending global transform changes.
_interpolation_data.global_xform_curr = get_global_transform_const();
_interpolation_data.global_xform_prev = _interpolation_data.global_xform_curr;

View File

@ -40,6 +40,8 @@
#include "scene/resources/material/material.h"
#include "scene/resources/mesh/surface_tool.h"
#include "scene/resources/world_3d.h"
#include "core/math/transform_interpolator.h"
#include "servers/rendering/rendering_server_constants.h"
void Camera::_update_audio_listener_state() {
}
@ -85,7 +87,16 @@ void Camera::_update_camera() {
return;
}
RenderingServer::get_singleton()->camera_set_transform(camera, get_camera_transform());
if (!is_physics_interpolated_and_enabled()) {
RenderingServer::get_singleton()->camera_set_transform(camera, get_camera_transform());
} else {
// Ideally we shouldn't be moving a physics interpolated camera within a frame,
// because it will break smooth interpolation, but it may occur on e.g. level load.
if (!Engine::get_singleton()->is_in_physics_frame() && camera.is_valid()) {
_physics_interpolation_ensure_transform_calculated(true);
RenderingServer::get_singleton()->camera_set_transform(camera, _interpolation_data.camera_xform_interpolated);
}
}
// here goes listener stuff
/*
@ -105,7 +116,61 @@ void Camera::_update_camera() {
}
void Camera::_physics_interpolated_changed() {
RenderingServer::get_singleton()->camera_set_interpolated(camera, is_physics_interpolated());
_update_process_mode();
}
void Camera::_physics_interpolation_ensure_data_flipped() {
// The curr -> previous update can either occur
// on the INTERNAL_PHYSICS_PROCESS OR
// on NOTIFICATION_TRANSFORM_CHANGED,
// if NOTIFICATION_TRANSFORM_CHANGED takes place
// earlier than INTERNAL_PHYSICS_PROCESS on a tick.
// This is to ensure that the data keeps flowing, but the new data
// doesn't overwrite before prev has been set.
// Keep the data flowing.
uint64_t tick = Engine::get_singleton()->get_physics_frames();
if (_interpolation_data.last_update_physics_tick != tick) {
_interpolation_data.xform_prev = _interpolation_data.xform_curr;
_interpolation_data.last_update_physics_tick = tick;
physics_interpolation_flip_data();
}
}
void Camera::_physics_interpolation_ensure_transform_calculated(bool p_force) const {
DEV_CHECK_ONCE(!Engine::get_singleton()->is_in_physics_frame());
InterpolationData &id = _interpolation_data;
uint64_t frame = Engine::get_singleton()->get_frames_drawn();
if (id.last_update_frame != frame || p_force) {
id.last_update_frame = frame;
TransformInterpolator::interpolate_transform(id.xform_prev, id.xform_curr, id.xform_interpolated, Engine::get_singleton()->get_physics_interpolation_fraction());
Transform &tr = id.camera_xform_interpolated;
tr = _get_adjusted_camera_transform(id.xform_interpolated);
}
}
void Camera::set_desired_process_modes(bool p_process_internal, bool p_physics_process_internal) {
_desired_process_internal = p_process_internal;
_desired_physics_process_internal = p_physics_process_internal;
_update_process_mode();
}
void Camera::_update_process_mode() {
bool process = _desired_process_internal;
bool physics_process = _desired_physics_process_internal;
if (is_physics_interpolated_and_enabled()) {
if (is_current()) {
process = true;
physics_process = true;
}
}
set_process_internal(process);
set_physics_process_internal(physics_process);
}
void Camera::_notification(int p_what) {
@ -122,15 +187,48 @@ void Camera::_notification(int p_what) {
world->_camera_set(this);
}
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
if (is_physics_interpolated_and_enabled() && camera.is_valid()) {
_physics_interpolation_ensure_transform_calculated();
#ifdef VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
print_line("\t\tinterpolated Camera: " + rtos(_interpolation_data.xform_interpolated.origin.x) + "\t( prev " + rtos(_interpolation_data.xform_prev.origin.x) + ", curr " + rtos(_interpolation_data.xform_curr.origin.x) + " ) on tick " + itos(Engine::get_singleton()->get_physics_frames()));
#endif
RenderingServer::get_singleton()->camera_set_transform(camera, _interpolation_data.camera_xform_interpolated);
}
} break;
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
if (is_physics_interpolated_and_enabled()) {
_physics_interpolation_ensure_data_flipped();
_interpolation_data.xform_curr = get_global_transform();
}
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
if (is_physics_interpolated_and_enabled()) {
_physics_interpolation_ensure_data_flipped();
_interpolation_data.xform_curr = get_global_transform();
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
if (!Engine::get_singleton()->is_in_physics_frame()) {
PHYSICS_INTERPOLATION_NODE_WARNING(get_instance_id(), "Interpolated Camera triggered from outside physics process");
}
#endif
}
_request_camera_update();
if (doppler_tracking != DOPPLER_TRACKING_DISABLED) {
velocity_tracker->update_position(get_global_transform().origin);
}
// Allow auto-reset when first adding to the tree, as a convenience.
if (_is_physics_interpolation_reset_requested() && is_inside_tree()) {
_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
_set_physics_interpolation_reset_requested(false);
}
} break;
case NOTIFICATION_RESET_PHYSICS_INTERPOLATION: {
if (is_physics_interpolated()) {
RenderingServer::get_singleton()->camera_reset_physics_interpolation(camera);
if (is_inside_tree()) {
_interpolation_data.xform_curr = get_global_transform();
_interpolation_data.xform_prev = _interpolation_data.xform_curr;
}
} break;
case NOTIFICATION_EXIT_WORLD: {
@ -154,22 +252,33 @@ void Camera::_notification(int p_what) {
if (world) {
world->_world_3d_register_camera(this);
}
_update_process_mode();
} break;
case NOTIFICATION_LOST_CURRENT: {
if (world) {
world->_world_3d_remove_camera(this);
}
_update_process_mode();
} break;
}
}
Transform Camera::get_camera_transform() const {
Transform tr = get_global_transform().orthonormalized();
Transform Camera::_get_adjusted_camera_transform(const Transform &p_xform) const {
Transform tr = p_xform.orthonormalized();
tr.origin += tr.basis.get_axis(1) * v_offset;
tr.origin += tr.basis.get_axis(0) * h_offset;
return tr;
}
Transform Camera::get_camera_transform() const {
if (is_physics_interpolated_and_enabled() && !Engine::get_singleton()->is_in_physics_frame()) {
_physics_interpolation_ensure_transform_calculated();
return _interpolation_data.camera_xform_interpolated;
}
return _get_adjusted_camera_transform(get_global_transform());
}
void Camera::set_perspective(float p_fovy_degrees, float p_z_near, float p_z_far) {
if (!force_change && fov == p_fovy_degrees && p_z_near == near && p_z_far == far && mode == PROJECTION_PERSPECTIVE) {
return;
@ -371,6 +480,10 @@ Point2 Camera::unproject_position(const Vector3 &p_pos) const {
Plane p(get_camera_transform().xform_inv(p_pos), 1.0);
p = cm.xform(p);
// Prevent divide by zero.
// TODO : Investigate, this was causing Nans.
ERR_FAIL_COND_V(p.d == 0, Point2());
p.normal /= p.d;
Point2 res;
@ -698,25 +811,48 @@ float ClippedCamera::get_margin() const {
return margin;
}
void ClippedCamera::set_process_mode(ProcessMode p_mode) {
if (is_physics_interpolated_and_enabled() && p_mode == CLIP_PROCESS_IDLE) {
p_mode = CLIP_PROCESS_PHYSICS;
WARN_PRINT_ONCE("[Physics interpolation] Forcing ClippedCamera to PROCESS_PHYSICS mode.");
}
if (process_mode == p_mode) {
return;
}
process_mode = p_mode;
set_process_internal(process_mode == CLIP_PROCESS_IDLE);
set_physics_process_internal(process_mode == CLIP_PROCESS_PHYSICS);
set_desired_process_modes(process_mode == CLIP_PROCESS_IDLE, process_mode == CLIP_PROCESS_PHYSICS);
}
ClippedCamera::ProcessMode ClippedCamera::get_process_mode() const {
return process_mode;
}
Transform ClippedCamera::get_camera_transform() const {
Transform t = Camera::get_camera_transform();
void ClippedCamera::physics_interpolation_flip_data() {
_interpolation_data.clip_offset_prev = _interpolation_data.clip_offset_curr;
}
void ClippedCamera::_physics_interpolated_changed() {
// Switch process mode to physics if we are turning on interpolation.
// Idle process mode doesn't work well with physics interpolation.
set_process_mode(get_process_mode());
Camera::_physics_interpolated_changed();
}
Transform ClippedCamera::_get_adjusted_camera_transform(const Transform &p_xform) const {
Transform t = Camera::_get_adjusted_camera_transform(p_xform);
t.origin += -t.basis.get_axis(Vector3::AXIS_Z).normalized() * clip_offset;
return t;
}
void ClippedCamera::_notification(int p_what) {
if (p_what == NOTIFICATION_INTERNAL_PROCESS || p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) {
if (p_what == NOTIFICATION_ENTER_TREE) {
// Switch process mode to physics if we are turning on interpolation.
// Idle process mode doesn't work well with physics interpolation.
set_process_mode(get_process_mode());
}
if (((p_what == NOTIFICATION_INTERNAL_PROCESS) && process_mode == CLIP_PROCESS_IDLE) || ((p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) && process_mode == CLIP_PROCESS_PHYSICS)) {
Spatial *parent = Object::cast_to<Spatial>(get_parent());
if (!parent) {
return;
@ -738,7 +874,7 @@ void ClippedCamera::_notification(int p_what) {
Vector3 ray_from = parent_plane.project(cam_pos);
clip_offset = 0; //reset by defau;t
_interpolation_data.clip_offset_curr = 0; // Reset by default.
{ //check if points changed
Vector<Vector3> local_points = get_near_plane_points();
@ -764,15 +900,29 @@ void ClippedCamera::_notification(int p_what) {
float closest_safe = 1.0f, closest_unsafe = 1.0f;
if (dspace->cast_motion(pyramid_shape, xf, cam_pos - ray_from, margin, closest_safe, closest_unsafe, exclude, collision_mask, clip_to_bodies, clip_to_areas)) {
clip_offset = cam_pos.distance_to(ray_from + (cam_pos - ray_from) * closest_safe);
_interpolation_data.clip_offset_curr = cam_pos.distance_to(ray_from + (cam_pos - ray_from) * closest_safe);
}
// Default to use the current value
// (in the case of non-interpolated).
if (!is_physics_interpolated_and_enabled()) {
clip_offset = _interpolation_data.clip_offset_curr;
}
_update_camera();
}
if (is_physics_interpolated_and_enabled() && (p_what == NOTIFICATION_INTERNAL_PROCESS)) {
clip_offset = ((_interpolation_data.clip_offset_curr - _interpolation_data.clip_offset_prev) * Engine::get_singleton()->get_physics_interpolation_fraction()) + _interpolation_data.clip_offset_prev;
}
if (p_what == NOTIFICATION_LOCAL_TRANSFORM_CHANGED) {
update_gizmos();
}
if (p_what == NOTIFICATION_RESET_PHYSICS_INTERPOLATION) {
_interpolation_data.clip_offset_prev = _interpolation_data.clip_offset_curr;
}
}
void ClippedCamera::set_collision_mask(uint32_t p_mask) {
@ -887,9 +1037,11 @@ void ClippedCamera::_bind_methods() {
}
ClippedCamera::ClippedCamera() {
margin = 0;
clip_offset = 0;
process_mode = CLIP_PROCESS_PHYSICS;
set_physics_process_internal(true);
// Force initializing to physics (prevent noop check).
process_mode = CLIP_PROCESS_IDLE;
set_process_mode(CLIP_PROCESS_PHYSICS);
collision_mask = 1;
set_notify_local_transform(Engine::get_singleton()->is_editor_hint());
points.resize(5);

View File

@ -67,6 +67,8 @@ private:
bool current;
World *world;
Viewport *viewport;
ProjectionMode mode;
float fov;
@ -94,13 +96,44 @@ private:
Ref<SpatialVelocityTracker> velocity_tracker;
bool affect_lod = true;
///////////////////////////////////////////////////////
// INTERPOLATION FUNCTIONS
void _physics_interpolation_ensure_transform_calculated(bool p_force = false) const;
void _physics_interpolation_ensure_data_flipped();
// These can be set by derived Cameras,
// if they wish to do processing (while still
// allowing physics interpolation to function).
bool _desired_process_internal = false;
bool _desired_physics_process_internal = false;
mutable struct InterpolationData {
Transform xform_curr;
Transform xform_prev;
Transform xform_interpolated;
Transform camera_xform_interpolated; // After modification according to camera type.
uint32_t last_update_physics_tick = 0;
uint32_t last_update_frame = UINT32_MAX;
} _interpolation_data;
void _update_process_mode();
protected:
// Use from derived classes to set process modes instead of setting directly.
// This is because physics interpolation may need to request process modes additionally.
void set_desired_process_modes(bool p_process_internal, bool p_physics_process_internal);
// Opportunity for derived classes to interpolate extra attributes.
virtual void physics_interpolation_flip_data() {}
virtual void _physics_interpolated_changed();
virtual Transform _get_adjusted_camera_transform(const Transform &p_xform) const;
///////////////////////////////////////////////////////
void _update_camera();
virtual void _request_camera_update();
void _update_camera_mode();
virtual void _physics_interpolated_changed();
void _notification(int p_what);
virtual void _validate_property(PropertyInfo &p_property) const;
@ -139,7 +172,7 @@ public:
void set_znear(float p_znear);
void set_frustum_offset(Vector2 p_offset);
virtual Transform get_camera_transform() const;
Transform get_camera_transform() const;
virtual Vector3 project_ray_normal(const Point2 &p_pos) const;
virtual Vector3 project_ray_origin(const Point2 &p_pos) const;
@ -199,7 +232,9 @@ private:
ProcessMode process_mode;
RID pyramid_shape;
float margin;
float clip_offset;
float clip_offset = 0;
uint32_t collision_mask;
bool clip_to_areas;
bool clip_to_bodies;
@ -208,10 +243,21 @@ private:
Vector<Vector3> points;
///////////////////////////////////////////////////////
// INTERPOLATION FUNCTIONS
struct InterpolatedData {
float clip_offset_curr = 0;
float clip_offset_prev = 0;
} _interpolation_data;
protected:
virtual Transform _get_adjusted_camera_transform(const Transform &p_xform) const;
virtual void physics_interpolation_flip_data();
virtual void _physics_interpolated_changed();
///////////////////////////////////////////////////////
void _notification(int p_what);
static void _bind_methods();
virtual Transform get_camera_transform() const;
public:
void set_clip_to_areas(bool p_clip);

View File

@ -906,14 +906,6 @@ void CPUParticles::_particles_process(float p_delta) {
p.velocity.z = 0.0;
p.transform.origin.z = 0.0;
}
// Teleport if starting a new particle, so
// we don't get a streak from the old position
// to this new start.
if (_interpolated) {
p.copy_to(particles_prev[i]);
}
} else if (!p.active) {
continue;
} else if (p.time > p.lifetime) {
@ -1019,6 +1011,13 @@ void CPUParticles::_particles_process(float p_delta) {
}
p.transform.origin += p.velocity * local_delta;
// Teleport if starting a new particle, so
// we don't get a streak from the old position
// to this new start.
if (restart && _interpolated) {
p.copy_to(particles_prev[i]);
}
}
}

View File

@ -102,12 +102,11 @@ void VisualInstance::_notification(int p_what) {
case NOTIFICATION_TRANSFORM_CHANGED: {
if (_is_vi_visible() || is_physics_interpolated_and_enabled()) {
if (!_is_using_identity_transform()) {
Transform gt = get_global_transform();
RenderingServer::get_singleton()->instance_set_transform(instance, gt);
RenderingServer::get_singleton()->instance_set_transform(instance, get_global_transform());
// For instance when first adding to the tree, when the previous transform is
// unset, to prevent streaking from the origin.
if (_is_physics_interpolation_reset_requested()) {
if (_is_physics_interpolation_reset_requested() && is_physics_interpolated_and_enabled() && is_inside_tree()) {
if (_is_vi_visible()) {
_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
}
@ -117,7 +116,14 @@ void VisualInstance::_notification(int p_what) {
}
} break;
case NOTIFICATION_RESET_PHYSICS_INTERPOLATION: {
if (_is_vi_visible() && is_physics_interpolated()) {
if (_is_vi_visible() && is_physics_interpolated() && is_inside_tree()) {
// We must ensure the VisualServer transform is up to date before resetting.
// This is because NOTIFICATION_TRANSFORM_CHANGED is deferred,
// and cannot be relied to be called in order before NOTIFICATION_RESET_PHYSICS_INTERPOLATION.
if (!_is_using_identity_transform()) {
RenderingServer::get_singleton()->instance_set_transform(instance, get_global_transform());
}
RenderingServer::get_singleton()->instance_reset_physics_interpolation(instance);
}
} break;

View File

@ -145,6 +145,12 @@ void Node::_notification(int p_notification) {
get_tree()->node_count++;
orphan_node_count--;
// Allow physics interpolated nodes to automatically reset when added to the tree
// (this is to save the user doing this manually each time).
if (get_tree()->is_physics_interpolation_enabled()) {
_set_physics_interpolation_reset_requested(true);
}
} break;
case NOTIFICATION_EXIT_TREE: {
ERR_FAIL_COND(!get_viewport());
@ -318,15 +324,17 @@ void Node::_propagate_physics_interpolated(bool p_interpolated) {
data.blocked--;
}
void Node::_propagate_physics_interpolation_reset_requested() {
void Node::_propagate_physics_interpolation_reset_requested(bool p_requested) {
if (is_physics_interpolated()) {
data.physics_interpolation_reset_requested = true;
data.physics_interpolation_reset_requested = p_requested;
}
data.blocked++;
for (HashMap<StringName, Node *>::Element *E = data.children.front(); E; E = E->next) {
E->value()->_propagate_physics_interpolation_reset_requested();
E->value()->_propagate_physics_interpolation_reset_requested(p_requested);
}
data.blocked--;
}
@ -1194,15 +1202,23 @@ void Node::set_physics_interpolation_mode(PhysicsInterpolationMode p_mode) {
// if swapping from interpolated to non-interpolated, use this as
// an extra means to cause a reset
if (is_physics_interpolated() && !interpolate) {
reset_physics_interpolation();
if (is_physics_interpolated() && !interpolate && is_inside_tree()) {
propagate_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
}
_propagate_physics_interpolated(interpolate);
}
void Node::reset_physics_interpolation() {
propagate_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
if (is_inside_tree()) {
propagate_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
// If `reset_physics_interpolation()` is called explicitly by the user
// (e.g. from scripts) then we prevent deferred auto-resets taking place.
// The user is trusted to call reset in the right order, and auto-reset
// will interfere with their control of prev / curr, so should be turned off.
_propagate_physics_interpolation_reset_requested(false);
}
}
float Node::get_physics_process_delta_time() const {
@ -1744,12 +1760,6 @@ void Node::_add_child_nocheck(Node *p_child, const StringName &p_name) {
add_child_notify(p_child);
notification(NOTIFICATION_CHILD_ORDER_CHANGED);
emit_signal(SceneStringNames::get_singleton()->child_order_changed);
// Allow physics interpolated nodes to automatically reset when added to the tree
// (this is to save the user doing this manually each time)
if (is_inside_tree() && get_tree()->is_physics_interpolation_enabled()) {
p_child->_propagate_physics_interpolation_reset_requested();
}
}
void Node::add_child(Node *p_child, bool p_force_readable_name) {

View File

@ -219,7 +219,7 @@ private:
void _propagate_exit_tree();
void _propagate_after_exit_branch(bool p_exiting_tree);
void _propagate_physics_interpolated(bool p_interpolated);
void _propagate_physics_interpolation_reset_requested();
void _propagate_physics_interpolation_reset_requested(bool p_requested);
void _print_stray_nodes();
void _propagate_pause_owner(Node *p_owner);
void _propagate_groups_dirty();

View File

@ -609,6 +609,9 @@ void SceneTree::client_physics_interpolation_remove_spatial(SelfList<Spatial> *p
void SceneTree::iteration_prepare() {
if (_physics_interpolation_enabled) {
// Make sure any pending transforms from the last tick / frame
// are flushed before pumping the interpolation prev and currents.
flush_transform_notifications();
RenderingServer::get_singleton()->tick();
}
}

View File

@ -348,7 +348,7 @@ void Spatial::_disable_client_physics_interpolation() {
}
Transform Spatial::_get_global_transform_interpolated(real_t p_interpolation_fraction) {
ERR_FAIL_NULL_V(is_inside_tree(), Transform());
ERR_FAIL_COND_V(!is_inside_tree(), Transform());
// set in motion the mechanisms for client side interpolation if not already active
if (!_is_physics_interpolated_client_side()) {

View File

@ -355,6 +355,13 @@ void RasterizerStorage::multimesh_instance_set_transform(RID p_multimesh, int p_
ptr[11] = t.origin.z;
_multimesh_add_to_interpolation_lists(p_multimesh, *mmi);
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
if (!Engine::get_singleton()->is_in_physics_frame()) {
PHYSICS_INTERPOLATION_WARNING("Interpolated MultiMesh triggered from outside physics process");
}
#endif
return;
}
}
@ -506,6 +513,12 @@ void RasterizerStorage::multimesh_set_as_bulk_array_interpolated(RID p_multimesh
mmi->_data_prev = p_array_prev;
mmi->_data_curr = p_array;
_multimesh_add_to_interpolation_lists(p_multimesh, *mmi);
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
if (!Engine::get_singleton()->is_in_physics_frame()) {
PHYSICS_INTERPOLATION_WARNING("Interpolated MultiMesh triggered from outside physics process");
}
#endif
}
}
@ -517,6 +530,13 @@ void RasterizerStorage::multimesh_set_as_bulk_array(RID p_multimesh, const PoolV
mmi->_data_curr = p_array;
_multimesh_add_to_interpolation_lists(p_multimesh, *mmi);
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
if (!Engine::get_singleton()->is_in_physics_frame()) {
PHYSICS_INTERPOLATION_WARNING("Interpolated MultiMesh triggered from outside physics process");
}
#endif
return;
}
}

View File

@ -54,6 +54,9 @@
// This is expensive.
// #define RENDERING_SERVER_CANVAS_CHECK_BOUNDS
// Uncomment this define to produce debugging output for physics interpolation.
// #define VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
#endif // DEV_ENABLED
#endif // RENDERING_SERVER_CONSTANTS_H

View File

@ -370,8 +370,6 @@ public:
BIND4(camera_set_orthogonal, RID, float, float, float)
BIND5(camera_set_frustum, RID, float, Vector2, float, float)
BIND2(camera_set_transform, RID, const Transform &)
BIND2(camera_set_interpolated, RID, bool)
BIND1(camera_reset_physics_interpolation, RID)
BIND2(camera_set_cull_mask, RID, uint32_t)
BIND2(camera_set_environment, RID, RID)
BIND2(camera_set_use_vertical_aspect, RID, bool)

View File

@ -42,16 +42,6 @@
/* CAMERA API */
Transform RenderingServerScene::Camera::get_transform_interpolated() const {
if (!interpolated) {
return transform;
}
Transform final;
TransformInterpolator::interpolate_transform_via_method(transform_prev, transform, final, Engine::get_singleton()->get_physics_interpolation_fraction(), interpolation_method);
return final;
}
RID RenderingServerScene::camera_create() {
Camera *camera = memnew(Camera);
return camera_owner.make_rid(camera);
@ -85,36 +75,11 @@ void RenderingServerScene::camera_set_frustum(RID p_camera, float p_size, Vector
camera->zfar = p_z_far;
}
void RenderingServerScene::camera_reset_physics_interpolation(RID p_camera) {
Camera *camera = camera_owner.get(p_camera);
ERR_FAIL_COND(!camera);
if (_interpolation_data.interpolation_enabled && camera->interpolated) {
_interpolation_data.camera_teleport_list.push_back(p_camera);
}
}
void RenderingServerScene::camera_set_interpolated(RID p_camera, bool p_interpolated) {
Camera *camera = camera_owner.get(p_camera);
ERR_FAIL_COND(!camera);
camera->interpolated = p_interpolated;
}
void RenderingServerScene::camera_set_transform(RID p_camera, const Transform &p_transform) {
Camera *camera = camera_owner.get(p_camera);
ERR_FAIL_COND(!camera);
camera->transform = p_transform.orthonormalized();
if (_interpolation_data.interpolation_enabled && camera->interpolated) {
if (!camera->on_interpolate_transform_list) {
_interpolation_data.camera_transform_update_list_curr->push_back(p_camera);
camera->on_interpolate_transform_list = true;
}
// decide on the interpolation method .. slerp if possible
camera->interpolation_method = TransformInterpolator::find_method(camera->transform_prev.basis, camera->transform.basis);
}
}
void RenderingServerScene::camera_set_cull_mask(RID p_camera, uint32_t p_layers) {
@ -678,7 +643,13 @@ void RenderingServerScene::instance_reset_physics_interpolation(RID p_instance)
ERR_FAIL_COND(!instance);
if (_interpolation_data.interpolation_enabled && instance->interpolated) {
_interpolation_data.instance_teleport_list.push_back(p_instance);
instance->transform_prev = instance->transform_curr;
instance->transform_checksum_prev = instance->transform_checksum_curr;
#ifdef VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
print_line("instance_reset_physics_interpolation .. tick " + itos(Engine::get_singleton()->get_physics_frames()));
print_line("\tprev " + rtos(instance->transform_prev.origin.x) + ", curr " + rtos(instance->transform_curr.origin.x));
#endif
}
}
@ -692,6 +663,10 @@ void RenderingServerScene::instance_set_transform(RID p_instance, const Transfor
Instance *instance = instance_owner.get(p_instance);
ERR_FAIL_COND(!instance);
#ifdef VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
print_line("instance_set_transform " + rtos(p_transform.origin.x) + " .. tick " + itos(Engine::get_singleton()->get_physics_frames()));
#endif
if (!(_interpolation_data.interpolation_enabled && instance->interpolated) || !instance->scenario) {
if (instance->transform == p_transform) {
return; //must be checked to avoid worst evil
@ -775,19 +750,6 @@ void RenderingServerScene::instance_set_transform(RID p_instance, const Transfor
_instance_queue_update(instance, true);
}
void RenderingServerScene::InterpolationData::notify_free_camera(RID p_rid, Camera &r_camera) {
r_camera.on_interpolate_transform_list = false;
if (!interpolation_enabled) {
return;
}
// if the camera was on any of the lists, remove
camera_transform_update_list_curr->erase_multiple_unordered(p_rid);
camera_transform_update_list_prev->erase_multiple_unordered(p_rid);
camera_teleport_list.erase_multiple_unordered(p_rid);
}
void RenderingServerScene::InterpolationData::notify_free_instance(RID p_rid, Instance &r_instance) {
r_instance.on_interpolate_list = false;
r_instance.on_interpolate_transform_list = false;
@ -800,10 +762,13 @@ void RenderingServerScene::InterpolationData::notify_free_instance(RID p_rid, In
instance_interpolate_update_list.erase_multiple_unordered(p_rid);
instance_transform_update_list_curr->erase_multiple_unordered(p_rid);
instance_transform_update_list_prev->erase_multiple_unordered(p_rid);
instance_teleport_list.erase_multiple_unordered(p_rid);
}
void RenderingServerScene::update_interpolation_tick(bool p_process) {
#ifdef VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
print_line("update_interpolation_tick " + itos(Engine::get_singleton()->get_physics_frames()));
#endif
// update interpolation in storage
RSG::storage->update_interpolation_tick(p_process);
@ -860,64 +825,12 @@ void RenderingServerScene::update_interpolation_tick(bool p_process) {
// prepare for the next iteration
_interpolation_data.instance_transform_update_list_curr->clear();
// CAMERAS
// detect any that were on the previous transform list that are no longer active,
for (unsigned int n = 0; n < _interpolation_data.camera_transform_update_list_prev->size(); n++) {
const RID &rid = (*_interpolation_data.camera_transform_update_list_prev)[n];
Camera *camera = camera_owner.getornull(rid);
// no longer active? (either the instance deleted or no longer being transformed)
if (camera && !camera->on_interpolate_transform_list) {
camera->transform = camera->transform_prev;
}
}
// cameras , swap any current with previous
for (unsigned int n = 0; n < _interpolation_data.camera_transform_update_list_curr->size(); n++) {
const RID &rid = (*_interpolation_data.camera_transform_update_list_curr)[n];
Camera *camera = camera_owner.getornull(rid);
if (camera) {
camera->transform_prev = camera->transform;
camera->on_interpolate_transform_list = false;
}
}
// we maintain a mirror list for the transform updates, so we can detect when an instance
// is no longer being transformed, and remove it from the interpolate list
SWAP(_interpolation_data.camera_transform_update_list_curr, _interpolation_data.camera_transform_update_list_prev);
// prepare for the next iteration
_interpolation_data.camera_transform_update_list_curr->clear();
}
void RenderingServerScene::update_interpolation_frame(bool p_process) {
// update interpolation in storage
RSG::storage->update_interpolation_frame(p_process);
// teleported instances
for (unsigned int n = 0; n < _interpolation_data.instance_teleport_list.size(); n++) {
const RID &rid = _interpolation_data.instance_teleport_list[n];
Instance *instance = instance_owner.getornull(rid);
if (instance) {
instance->transform_prev = instance->transform_curr;
instance->transform_checksum_prev = instance->transform_checksum_curr;
}
}
_interpolation_data.instance_teleport_list.clear();
// camera teleports
for (unsigned int n = 0; n < _interpolation_data.camera_teleport_list.size(); n++) {
const RID &rid = _interpolation_data.camera_teleport_list[n];
Camera *camera = camera_owner.getornull(rid);
if (camera) {
camera->transform_prev = camera->transform;
}
}
_interpolation_data.camera_teleport_list.clear();
if (p_process) {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
@ -927,6 +840,10 @@ void RenderingServerScene::update_interpolation_frame(bool p_process) {
if (instance) {
TransformInterpolator::interpolate_transform_via_method(instance->transform_prev, instance->transform_curr, instance->transform, f, instance->interpolation_method);
#ifdef VISUAL_SERVER_DEBUG_PHYSICS_INTERPOLATION
print_line("\t\tinterpolated: " + rtos(instance->transform.origin.x) + "\t( prev " + rtos(instance->transform_prev.origin.x) + ", curr " + rtos(instance->transform_curr.origin.x) + " ) on tick " + itos(Engine::get_singleton()->get_physics_frames()));
#endif
// make sure AABBs are constantly up to date through the interpolation
_instance_queue_update(instance, true);
}
@ -2526,10 +2443,8 @@ void RenderingServerScene::render_camera(RID p_camera, RID p_scenario, Size2 p_v
} break;
}
Transform camera_transform = _interpolation_data.interpolation_enabled ? camera->get_transform_interpolated() : camera->transform;
_prepare_scene(camera_transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID(), camera->previous_room_id_hint);
_render_scene(camera_transform, camera_matrix, 0, ortho, camera->env, p_scenario, p_shadow_atlas, RID(), -1);
_prepare_scene(camera->transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID(), camera->previous_room_id_hint);
_render_scene(camera->transform, camera_matrix, 0, ortho, camera->env, p_scenario, p_shadow_atlas, RID(), -1);
#endif
}
@ -2909,8 +2824,6 @@ bool RenderingServerScene::free(RID p_rid) {
if (camera_owner.owns(p_rid)) {
Camera *camera = camera_owner.get(p_rid);
_interpolation_data.notify_free_camera(p_rid, *camera);
camera_owner.free(p_rid);
memdelete(camera);
} else if (scenario_owner.owns(p_rid)) {

View File

@ -82,20 +82,12 @@ public:
uint32_t visible_layers;
RID env;
// transform_prev is only used when using fixed timestep interpolation
Transform transform;
Transform transform_prev;
bool interpolated : 1;
bool on_interpolate_transform_list : 1;
bool vaspect : 1;
TransformInterpolator::Method interpolation_method : 3;
int32_t previous_room_id_hint;
Transform get_transform_interpolated() const;
Camera() {
visible_layers = 0xFFFFFFFF;
fov = 70;
@ -106,9 +98,6 @@ public:
offset = Vector2();
vaspect = false;
previous_room_id_hint = -1;
interpolated = true;
on_interpolate_transform_list = false;
interpolation_method = TransformInterpolator::INTERP_LERP;
}
};
@ -119,8 +108,6 @@ public:
virtual void camera_set_orthogonal(RID p_camera, float p_size, float p_z_near, float p_z_far);
virtual void camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far);
virtual void camera_set_transform(RID p_camera, const Transform &p_transform);
virtual void camera_set_interpolated(RID p_camera, bool p_interpolated);
virtual void camera_reset_physics_interpolation(RID p_camera);
virtual void camera_set_cull_mask(RID p_camera, uint32_t p_layers);
virtual void camera_set_environment(RID p_camera, RID p_env);
virtual void camera_set_use_vertical_aspect(RID p_camera, bool p_enable);
@ -411,18 +398,11 @@ public:
virtual void set_physics_interpolation_enabled(bool p_enabled);
struct InterpolationData {
void notify_free_camera(RID p_rid, Camera &r_camera);
void notify_free_instance(RID p_rid, Instance &r_instance);
LocalVector<RID> instance_interpolate_update_list;
LocalVector<RID> instance_transform_update_lists[2];
LocalVector<RID> *instance_transform_update_list_curr = &instance_transform_update_lists[0];
LocalVector<RID> *instance_transform_update_list_prev = &instance_transform_update_lists[1];
LocalVector<RID> instance_teleport_list;
LocalVector<RID> camera_transform_update_lists[2];
LocalVector<RID> *camera_transform_update_list_curr = &camera_transform_update_lists[0];
LocalVector<RID> *camera_transform_update_list_prev = &camera_transform_update_lists[1];
LocalVector<RID> camera_teleport_list;
bool interpolation_enabled = false;
} _interpolation_data;

View File

@ -290,8 +290,6 @@ public:
FUNC4(camera_set_orthogonal, RID, float, float, float)
FUNC5(camera_set_frustum, RID, float, Vector2, float, float)
FUNC2(camera_set_transform, RID, const Transform &)
FUNC2(camera_set_interpolated, RID, bool)
FUNC1(camera_reset_physics_interpolation, RID)
FUNC2(camera_set_cull_mask, RID, uint32_t)
FUNC2(camera_set_environment, RID, RID)
FUNC2(camera_set_use_vertical_aspect, RID, bool)

View File

@ -2030,8 +2030,6 @@ void RenderingServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("camera_set_orthogonal", "camera", "size", "z_near", "z_far"), &RenderingServer::camera_set_orthogonal);
ClassDB::bind_method(D_METHOD("camera_set_frustum", "camera", "size", "offset", "z_near", "z_far"), &RenderingServer::camera_set_frustum);
ClassDB::bind_method(D_METHOD("camera_set_transform", "camera", "transform"), &RenderingServer::camera_set_transform);
ClassDB::bind_method(D_METHOD("camera_set_interpolated", "camera", "interpolated"), &RenderingServer::camera_set_interpolated);
ClassDB::bind_method(D_METHOD("camera_reset_physics_interpolation", "camera"), &RenderingServer::camera_reset_physics_interpolation);
ClassDB::bind_method(D_METHOD("camera_set_cull_mask", "camera", "layers"), &RenderingServer::camera_set_cull_mask);
ClassDB::bind_method(D_METHOD("camera_set_environment", "camera", "env"), &RenderingServer::camera_set_environment);
ClassDB::bind_method(D_METHOD("camera_set_use_vertical_aspect", "camera", "enable"), &RenderingServer::camera_set_use_vertical_aspect);

View File

@ -533,8 +533,6 @@ public:
virtual void camera_set_orthogonal(RID p_camera, float p_size, float p_z_near, float p_z_far) = 0;
virtual void camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far) = 0;
virtual void camera_set_transform(RID p_camera, const Transform &p_transform) = 0;
virtual void camera_set_interpolated(RID p_camera, bool p_interpolated) = 0;
virtual void camera_reset_physics_interpolation(RID p_camera) = 0;
virtual void camera_set_cull_mask(RID p_camera, uint32_t p_layers) = 0;
virtual void camera_set_environment(RID p_camera, RID p_env) = 0;
virtual void camera_set_use_vertical_aspect(RID p_camera, bool p_enable) = 0;