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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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14
main/main.cpp
View File

@@ -2380,6 +2380,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
GLOBAL_DEF("debug/settings/stdout/print_fps", false);
GLOBAL_DEF("debug/settings/stdout/print_gpu_profile", false);
GLOBAL_DEF("debug/settings/stdout/verbose_stdout", false);
GLOBAL_DEF("debug/settings/physics_interpolation/enable_warnings", true);
if (!OS::get_singleton()->_verbose_stdout) { // Not manually overridden.
OS::get_singleton()->_verbose_stdout = GLOBAL_GET("debug/settings/stdout/verbose_stdout");
@@ -4047,16 +4048,16 @@ bool Main::iteration() {
uint64_t physics_begin = OS::get_singleton()->get_ticks_usec();
#ifndef _3D_DISABLED
PhysicsServer3D::get_singleton()->sync();
PhysicsServer3D::get_singleton()->flush_queries();
#endif // _3D_DISABLED
// Prepare the fixed timestep interpolated nodes BEFORE they are updated
// by the physics server, otherwise the current and previous transforms
// may be the same, and no interpolation takes place.
OS::get_singleton()->get_main_loop()->iteration_prepare();
#ifndef _3D_DISABLED
PhysicsServer3D::get_singleton()->sync();
PhysicsServer3D::get_singleton()->flush_queries();
#endif // _3D_DISABLED
PhysicsServer2D::get_singleton()->sync();
PhysicsServer2D::get_singleton()->flush_queries();
@@ -4066,6 +4067,7 @@ bool Main::iteration() {
#endif // _3D_DISABLED
PhysicsServer2D::get_singleton()->end_sync();
Engine::get_singleton()->_in_physics = false;
exit = true;
break;
}
@@ -4089,6 +4091,8 @@ bool Main::iteration() {
message_queue->flush();
OS::get_singleton()->get_main_loop()->iteration_end();
physics_process_ticks = MAX(physics_process_ticks, OS::get_singleton()->get_ticks_usec() - physics_begin); // keep the largest one for reference
physics_process_max = MAX(OS::get_singleton()->get_ticks_usec() - physics_begin, physics_process_max);

11
main/main_timer_sync.cpp
View File

@@ -299,17 +299,6 @@ int64_t MainTimerSync::DeltaSmoother::smooth_delta(int64_t p_delta) {
// before advance_core considers changing the physics_steps return from
// the typical values as defined by typical_physics_steps
double MainTimerSync::get_physics_jitter_fix() {
// Turn off jitter fix when using fixed timestep interpolation.
// Note this shouldn't be on UNTIL 3d interpolation is implemented,
// otherwise we will get people making 3d games with the physics_interpolation
// set to on getting jitter fix disabled unexpectedly.
#if 0
if (Engine::get_singleton()->is_physics_interpolation_enabled()) {
// Would be better to write a simple bypass for jitter fix but this will do to get started.
return 0.0;
}
#endif
return Engine::get_singleton()->get_physics_jitter_fix();
}