asgardius/virtualx-engine
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Tweak the default low-processor usage mode to be 144 Hz-friendly

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On high-refresh rate displays, the old default value (8000) effectively
limited redrawing to 125 FPS, no matter whether V-Sync was enabled
or not. The new value limits redrawing to a value slightly above
144 FPS, decreasing input lag and making the editor feel smoother
when using freelook.

60 Hz displays aren't affected by this change when V-Sync is enabled,
since V-Sync will take care of limiting redrawing to 60 FPS.
This commit is contained in:
Hugo Locurcio 2019-05-09 22:40:20 +02:00
parent 7112a45d99
commit 8c7ee6dac4
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GPG key ID: 39E8F8BE30B0A49C
1 changed files with 2 additions and 2 deletions
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4
main/main.cpp
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@ -1027,7 +1027,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
}
OS::get_singleton()->set_low_processor_usage_mode(GLOBAL_DEF("application/run/low_processor_mode", false));
OS::get_singleton()->set_low_processor_usage_mode_sleep_usec(GLOBAL_DEF("application/run/low_processor_mode_sleep_usec", 8000));
OS::get_singleton()->set_low_processor_usage_mode_sleep_usec(GLOBAL_DEF("application/run/low_processor_mode_sleep_usec", 6900)); // Roughly 144 FPS
ProjectSettings::get_singleton()->set_custom_property_info("application/run/low_processor_mode_sleep_usec", PropertyInfo(Variant::INT, "application/run/low_processor_mode_sleep_usec", PROPERTY_HINT_RANGE, "0,33200,1,or_greater")); // No negative numbers
Engine::get_singleton()->set_frame_delay(frame_delay);
@ -1949,7 +1949,7 @@ bool Main::iteration() {
return exit;
if (OS::get_singleton()->is_in_low_processor_usage_mode() || !OS::get_singleton()->can_draw())
OS::get_singleton()->delay_usec(OS::get_singleton()->get_low_processor_usage_mode_sleep_usec()); //apply some delay to force idle time (results in about 60 FPS max)
OS::get_singleton()->delay_usec(OS::get_singleton()->get_low_processor_usage_mode_sleep_usec()); //apply some delay to force idle time
else {
uint32_t frame_delay = Engine::get_singleton()->get_frame_delay();
if (frame_delay)