Fixed Timestep Interpolation (3D)

Adds 3D fixed timestep interpolation to the rendering server.
This does not yet include support for multimeshes or particles.

Co-authored-by: lawnjelly <lawnjelly@gmail.com>
This commit is contained in:
Ricardo Buring
2024-05-26 19:39:28 +02:00
parent 42e5b3ac2d
commit 2f8ab4a654
31 changed files with 1470 additions and 69 deletions

View File

@@ -30,6 +30,8 @@
#include "visual_instance_3d.h"
#include "core/config/project_settings.h"
AABB VisualInstance3D::get_aabb() const {
AABB ret;
GDVIRTUAL_CALL(_get_aabb, ret);
@@ -41,7 +43,38 @@ void VisualInstance3D::_update_visibility() {
return;
}
RS::get_singleton()->instance_set_visible(get_instance(), is_visible_in_tree());
bool already_visible = _is_vi_visible();
bool visible = is_visible_in_tree();
_set_vi_visible(visible);
// If making visible, make sure the rendering server is up to date with the transform.
if (visible && !already_visible) {
if (!_is_using_identity_transform()) {
Transform3D gt = get_global_transform();
RS::get_singleton()->instance_set_transform(instance, gt);
}
}
RS::get_singleton()->instance_set_visible(instance, visible);
}
void VisualInstance3D::_physics_interpolated_changed() {
RenderingServer::get_singleton()->instance_set_interpolated(instance, is_physics_interpolated());
}
void VisualInstance3D::set_instance_use_identity_transform(bool p_enable) {
// Prevent sending instance transforms when using global coordinates.
_set_use_identity_transform(p_enable);
if (is_inside_tree()) {
if (p_enable) {
// Want to make sure instance is using identity transform.
RS::get_singleton()->instance_set_transform(instance, Transform3D());
} else {
// Want to make sure instance is up to date.
RS::get_singleton()->instance_set_transform(instance, get_global_transform());
}
}
}
void VisualInstance3D::_notification(int p_what) {
@@ -53,13 +86,52 @@ void VisualInstance3D::_notification(int p_what) {
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
Transform3D gt = get_global_transform();
RenderingServer::get_singleton()->instance_set_transform(instance, gt);
if (_is_vi_visible() || is_physics_interpolated_and_enabled()) {
if (!_is_using_identity_transform()) {
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() && is_physics_interpolated_and_enabled() && is_inside_tree()) {
if (_is_vi_visible()) {
_notification(NOTIFICATION_RESET_PHYSICS_INTERPOLATION);
}
_set_physics_interpolation_reset_requested(false);
}
}
}
} break;
case NOTIFICATION_RESET_PHYSICS_INTERPOLATION: {
if (_is_vi_visible() && is_physics_interpolated() && is_inside_tree()) {
// We must ensure the RenderingServer 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);
}
#if defined(DEBUG_ENABLED) && defined(TOOLS_ENABLED)
else if (GLOBAL_GET("debug/settings/physics_interpolation/enable_warnings")) {
String node_name = is_inside_tree() ? String(get_path()) : String(get_name());
if (!_is_vi_visible()) {
WARN_PRINT("[Physics interpolation] NOTIFICATION_RESET_PHYSICS_INTERPOLATION only works with unhidden nodes: \"" + node_name + "\".");
}
if (!is_physics_interpolated()) {
WARN_PRINT("[Physics interpolation] NOTIFICATION_RESET_PHYSICS_INTERPOLATION only works with interpolated nodes: \"" + node_name + "\".");
}
}
#endif
} break;
case NOTIFICATION_EXIT_WORLD: {
RenderingServer::get_singleton()->instance_set_scenario(instance, RID());
RenderingServer::get_singleton()->instance_attach_skeleton(instance, RID());
_set_vi_visible(false);
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {