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Refresh rate driven rendering tick logic (#3375)

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* Implement sync interval and refresh rate API for RenderViewportWidget

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Measure actual frame timings in the viewport info overlay.

Takes the median of the sum of (frame end - frame begin) to provide more a more representative view of when frames begin and end.

Note: Until VSync is internally supported by the event loop, this will produce nearly identical frame timings as the frame will spend as much time as needed synchronously waiting on a vblank.

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Make frame timing per-pipeline, wire up refresh rate info to ViewportContext

Signed-off-by: nvsickle <nvsickle@amazon.com>

* POC: Frame limit pipeline rendering

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Switch Editor tick to every 0ms to allow better tick accumulation behavior

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Move RPISystemComponent to the tick bus, remove tick accumulation logic

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Add `AddToRenderTickAtInterval` to RenderPipeline API

This allows a pipeline to update at a set cadence, instead of rendering every frame or being directly told when to tick.

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Make ViewportContext enforce a target framerate

-Adds GetFpsLimit/SetFpsLimit for actively limiting FPS
-Calculates a render tick interval based on vsync and the vps limit and updates the current pipeline

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Add r_fps_limit and ed_inactive_viewport_fps_limit cvars

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Quick null check from a crash I bumped into

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Fix off-by-one on FPS calculation (shouldn't include the not-yet-rendered frame)

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Clarify frame time begin initialization

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Fix TrackView export.

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Address some reviewer feedback, revert RPISystem API change, fix CPU profiler.

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Add g_simulation_tick_rate

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Address review feedback, make frame limit updates event driven

Signed-off-by: nvsickle <nvsickle@amazon.com>

* Remove timestamp update from ComponentApplication::Tick

Signed-off-by: nvsickle <nvsickle@amazon.com>
This commit is contained in:
Nicholas Van Sickle
2021-09-13 17:57:42 -07:00
committed by GitHub
parent b2963f2bc1
commit db63dcbcd9
26 changed files with 633 additions and 124 deletions
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Gems/Atom/RPI/Code/Source/RPI.Private/RPISystemComponent.cpp
+15 -3
View File
@@ -14,6 +14,9 @@
#include <RPI.Private/RPISystemComponent.h>
#include <Atom/RHI/Factory.h>
#include <Atom/RPI.Public/ViewportContextBus.h>
#include <Atom/RPI.Public/ViewportContext.h>
#include <Atom/RPI.Public/RenderPipeline.h>
#include <AzCore/Asset/AssetManager.h>
#include <AzCore/IO/IOUtils.h>
@@ -93,20 +96,29 @@ namespace AZ
}
m_rpiSystem.Initialize(m_rpiDescriptor);
AZ::SystemTickBus::Handler::BusConnect();
AZ::TickBus::Handler::BusConnect();
}
void RPISystemComponent::Deactivate()
{
AZ::SystemTickBus::Handler::BusDisconnect();
AZ::TickBus::Handler::BusDisconnect();
m_rpiSystem.Shutdown();
}
void RPISystemComponent::OnSystemTick()
void RPISystemComponent::OnTick([[maybe_unused]]float deltaTime, [[maybe_unused]]ScriptTimePoint time)
{
if (deltaTime == 0.f)
{
return;
}
m_rpiSystem.SimulationTick();
m_rpiSystem.RenderTick();
}
int RPISystemComponent::GetTickOrder()
{
return AZ::ComponentTickBus::TICK_RENDER;
}
} // namespace RPI
} // namespace AZ