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Fixed Timestep Interpolation (3D)

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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
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45
scene/3d/node_3d.h
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@@ -85,7 +85,15 @@ private:
DIRTY_GLOBAL_TRANSFORM = 4
};
struct ClientPhysicsInterpolationData {
Transform3D global_xform_curr;
Transform3D global_xform_prev;
uint64_t current_physics_tick = 0;
uint64_t timeout_physics_tick = 0;
};
mutable SelfList<Node> xform_change;
SelfList<Node3D> _client_physics_interpolation_node_3d_list;
// This Data struct is to avoid namespace pollution in derived classes.
@@ -101,8 +109,19 @@ private:
Viewport *viewport = nullptr;
bool top_level = false;
bool inside_world = false;
bool top_level : 1;
bool inside_world : 1;
// This is cached, and only currently kept up to date in visual instances.
// This is set if a visual instance is (a) in the tree AND (b) visible via is_visible_in_tree() call.
bool vi_visible : 1;
bool ignore_notification : 1;
bool notify_local_transform : 1;
bool notify_transform : 1;
bool visible : 1;
bool disable_scale : 1;
RID visibility_parent;
@@ -110,18 +129,13 @@ private:
List<Node3D *> children;
List<Node3D *>::Element *C = nullptr;
bool ignore_notification = false;
bool notify_local_transform = false;
bool notify_transform = false;
bool visible = true;
bool disable_scale = false;
ClientPhysicsInterpolationData *client_physics_interpolation_data = nullptr;
#ifdef TOOLS_ENABLED
Vector<Ref<Node3DGizmo>> gizmos;
bool gizmos_disabled = false;
bool gizmos_dirty = false;
bool transform_gizmo_visible = true;
bool gizmos_disabled : 1;
bool gizmos_dirty : 1;
bool transform_gizmo_visible : 1;
#endif
} data;
@@ -150,6 +164,11 @@ protected:
_FORCE_INLINE_ void _update_local_transform() const;
_FORCE_INLINE_ void _update_rotation_and_scale() const;
void _set_vi_visible(bool p_visible) { data.vi_visible = p_visible; }
bool _is_vi_visible() const { return data.vi_visible; }
Transform3D _get_global_transform_interpolated(real_t p_interpolation_fraction);
void _disable_client_physics_interpolation();
void _notification(int p_what);
static void _bind_methods();
@@ -208,6 +227,9 @@ public:
Quaternion get_quaternion() const;
Transform3D get_global_transform() const;
Transform3D get_global_transform_interpolated();
bool update_client_physics_interpolation_data();
#ifdef TOOLS_ENABLED
virtual Transform3D get_global_gizmo_transform() const;
virtual Transform3D get_local_gizmo_transform() const;
@@ -279,6 +301,7 @@ public:
NodePath get_visibility_parent() const;
Node3D();
~Node3D();
};
VARIANT_ENUM_CAST(Node3D::RotationEditMode)