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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/AtomLyIntegration/AtomViewportDisplayInfo/Code/Source/AtomViewportDisplayInfoSystemComponent.h
+14 -1
View File
@@ -45,6 +45,7 @@ namespace AZ
// AZ::RPI::ViewportContextNotificationBus::Handler overrides...
void OnRenderTick() override;
void OnFrameEnd() override;
// AZ::AtomBridge::AtomViewportInfoDisplayRequestBus::Handler overrides...
AtomBridge::ViewportInfoDisplayState GetDisplayState() const override;
@@ -61,6 +62,8 @@ namespace AZ
void DrawPassInfo();
void DrawFramerate();
void UpdateScene(AZ::RPI::ScenePtr scene);
static constexpr float BaseFontSize = 0.7f;
AZStd::string m_rendererDescription;
@@ -68,7 +71,17 @@ namespace AZ
AzFramework::FontDrawInterface* m_fontDrawInterface = nullptr;
float m_lineSpacing;
AZStd::chrono::duration<double> m_fpsInterval = AZStd::chrono::seconds(1);
AZStd::deque<AZStd::chrono::system_clock::time_point> m_fpsHistory;
struct FrameTimingInfo
{
AZStd::chrono::system_clock::time_point m_beginFrameTime;
AZStd::optional<AZStd::chrono::system_clock::time_point> m_endFrameTime;
explicit FrameTimingInfo(AZStd::chrono::system_clock::time_point beginFrameTime)
: m_beginFrameTime(beginFrameTime)
{
}
};
AZStd::deque<FrameTimingInfo> m_fpsHistory;
AZStd::optional<AZStd::chrono::system_clock::time_point> m_lastMemoryUpdate;
bool m_updateRootPassQuery = true;
};