diff options
Diffstat (limited to 'main')
| -rw-r--r-- | main/main.cpp | 1 | ||||
| -rw-r--r-- | main/main_timer_sync.cpp | 4 | ||||
| -rw-r--r-- | main/main_timer_sync.h | 1 |
3 files changed, 6 insertions, 0 deletions
diff --git a/main/main.cpp b/main/main.cpp index 3f84eca1d2..d3e816eb48 100644 --- a/main/main.cpp +++ b/main/main.cpp @@ -1869,6 +1869,7 @@ bool Main::iteration() { double scaled_step = step * time_scale; Engine::get_singleton()->_frame_step = step; + Engine::get_singleton()->_physics_interpolation_fraction = advance.interpolation_fraction; uint64_t physics_process_ticks = 0; uint64_t idle_process_ticks = 0; diff --git a/main/main_timer_sync.cpp b/main/main_timer_sync.cpp index f7388c8517..edacb20f28 100644 --- a/main/main_timer_sync.cpp +++ b/main/main_timer_sync.cpp @@ -178,6 +178,10 @@ MainFrameTime MainTimerSync::advance_checked(float p_frame_slice, int p_iteratio // track deficit time_deficit = p_idle_step - ret.idle_step; + // p_frame_slice is 1.0 / iterations_per_sec + // i.e. the time in seconds taken by a physics tick + ret.interpolation_fraction = time_accum / p_frame_slice; + return ret; } diff --git a/main/main_timer_sync.h b/main/main_timer_sync.h index 179119edce..93d335b27f 100644 --- a/main/main_timer_sync.h +++ b/main/main_timer_sync.h @@ -36,6 +36,7 @@ struct MainFrameTime { float idle_step; // time to advance idles for (argument to process()) int physics_steps; // number of times to iterate the physics engine + float interpolation_fraction; // fraction through the current physics tick void clamp_idle(float min_idle_step, float max_idle_step); }; |