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add scripted/qml debug UI for render LOD

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This commit is contained in:
Andrew Meadows 2018-01-11 17:53:34 -08:00
parent 5ce768f402
commit 82cab5e4a1
7 changed files with 333 additions and 26 deletions
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5
interface/src/Application.cpp
View file

@ -4351,8 +4351,9 @@ void Application::updateLOD(float deltaTime) const {
float presentTime = getActiveDisplayPlugin()->getAveragePresentTime();
float engineRunTime = (float)(_renderEngine->getConfiguration().get()->getCPURunTime());
float gpuTime = getGPUContext()->getFrameTimerGPUAverage();
float maxRenderTime = glm::max(gpuTime, glm::max(presentTime, engineRunTime));
DependencyManager::get<LODManager>()->autoAdjustLOD(maxRenderTime, deltaTime);
auto lodManager = DependencyManager::get<LODManager>();
lodManager->setRenderTimes(presentTime, engineRunTime, gpuTime);
lodManager->autoAdjustLOD(deltaTime);
} else {
DependencyManager::get<LODManager>()->resetLODAdjust();
}

44
interface/src/LODManager.cpp
View file

@ -26,21 +26,21 @@ Setting::Handle<float> hmdLODDecreaseFPS("hmdLODDecreaseFPS", DEFAULT_HMD_LOD_DO
LODManager::LODManager() {
}
float LODManager::getLODDecreaseFPS() {
float LODManager::getLODDecreaseFPS() const {
if (qApp->isHMDMode()) {
return getHMDLODDecreaseFPS();
}
return getDesktopLODDecreaseFPS();
}
float LODManager::getLODIncreaseFPS() {
float LODManager::getLODIncreaseFPS() const {
if (qApp->isHMDMode()) {
return getHMDLODIncreaseFPS();
}
return getDesktopLODIncreaseFPS();
}
// We use a "time-weighted running average" of the renderTime and compare it against min/max thresholds
// We use a "time-weighted running average" of the maxRenderTime and compare it against min/max thresholds
// to determine if we should adjust the level of detail (LOD).
//
// A time-weighted running average has a timescale which determines how fast the average tracks the measured
@ -58,11 +58,18 @@ const uint64_t LOD_AUTO_ADJUST_PERIOD = 5 * (uint64_t)(LOD_ADJUST_RUNNING_AVG_TI
const float LOD_AUTO_ADJUST_DECREMENT_FACTOR = 0.8f;
const float LOD_AUTO_ADJUST_INCREMENT_FACTOR = 1.2f;
void LODManager::autoAdjustLOD(float renderTime, float realTimeDelta) {
// compute time-weighted running average renderTime
void LODManager::setRenderTimes(float presentTime, float engineRunTime, float gpuTime) {
_presentTime = presentTime;
_engineRunTime = engineRunTime;
_gpuTime = gpuTime;
}
void LODManager::autoAdjustLOD(float realTimeDelta) {
float maxRenderTime = glm::max(glm::max(_presentTime, _engineRunTime), _gpuTime);
// compute time-weighted running average maxRenderTime
// Note: we MUST clamp the blend to 1.0 for stability
float blend = (realTimeDelta < LOD_ADJUST_RUNNING_AVG_TIMESCALE) ? realTimeDelta / LOD_ADJUST_RUNNING_AVG_TIMESCALE : 1.0f;
_avgRenderTime = (1.0f - blend) * _avgRenderTime + blend * renderTime; // msec
_avgRenderTime = (1.0f - blend) * _avgRenderTime + blend * maxRenderTime; // msec
if (!_automaticLODAdjust) {
// early exit
return;
@ -84,6 +91,10 @@ void LODManager::autoAdjustLOD(float renderTime, float realTimeDelta) {
<< "targetFPS =" << getLODDecreaseFPS()
<< "octreeSizeScale =" << _octreeSizeScale;
emit LODDecreased();
// Assuming the LOD adjustment will work: we optimistically reset _avgRenderTime
// to provide an FPS just above the decrease threshold. It will drift close to its
// true value after a few LOD_ADJUST_TIMESCALEs and we'll adjust again as necessary.
_avgRenderTime = (float)MSECS_PER_SECOND / (getLODDecreaseFPS() + 1.0f);
}
_decreaseFPSExpiry = now + LOD_AUTO_ADJUST_PERIOD;
}
@ -105,6 +116,10 @@ void LODManager::autoAdjustLOD(float renderTime, float realTimeDelta) {
<< "targetFPS =" << getLODDecreaseFPS()
<< "octreeSizeScale =" << _octreeSizeScale;
emit LODIncreased();
// Assuming the LOD adjustment will work: we optimistically reset _avgRenderTime
// to provide an FPS just below the increase threshold. It will drift close to its
// true value after a few LOD_ADJUST_TIMESCALEs and we'll adjust again as necessary.
_avgRenderTime = (float)MSECS_PER_SECOND / (getLODIncreaseFPS() - 1.0f);
}
_increaseFPSExpiry = now + LOD_AUTO_ADJUST_PERIOD;
}
@ -119,11 +134,6 @@ void LODManager::autoAdjustLOD(float renderTime, float realTimeDelta) {
if (lodToolsDialog) {
lodToolsDialog->reloadSliders();
}
// Assuming the LOD adjustment will work: we optimistically reset _avgRenderTime
// to be at middle of target zone. It will drift close to its true value within
// about three few LOD_ADJUST_TIMESCALEs and we'll adjust again as necessary.
float expectedFPS = 0.5f * (getLODIncreaseFPS() + getLODDecreaseFPS());
_avgRenderTime = MSECS_PER_SECOND / expectedFPS;
}
}
@ -131,6 +141,18 @@ void LODManager::resetLODAdjust() {
_decreaseFPSExpiry = _increaseFPSExpiry = usecTimestampNow() + LOD_AUTO_ADJUST_PERIOD;
}
float LODManager::getLODLevel() const {
// simpleLOD is a linearized and normalized number that represents how much LOD is being applied.
// It ranges from:
// 1.0 = normal (max) level of detail
// 0.0 = min level of detail
// In other words: as LOD "drops" the value of simpleLOD will also "drop", and it cannot go lower than 0.0.
const float LOG_MIN_LOD_RATIO = logf(ADJUST_LOD_MIN_SIZE_SCALE / ADJUST_LOD_MAX_SIZE_SCALE);
float power = logf(_octreeSizeScale / ADJUST_LOD_MAX_SIZE_SCALE);
float simpleLOD = (LOG_MIN_LOD_RATIO - power) / LOG_MIN_LOD_RATIO;
return simpleLOD;
}
const float MIN_DECREASE_FPS = 0.5f;
void LODManager::setDesktopLODDecreaseFPS(float fps) {

49
interface/src/LODManager.h
View file

@ -37,7 +37,7 @@ class AABox;
class LODManager : public QObject, public Dependency {
Q_OBJECT
SINGLETON_DEPENDENCY
public:
Q_INVOKABLE void setAutomaticLODAdjust(bool value) { _automaticLODAdjust = value; }
Q_INVOKABLE bool getAutomaticLODAdjust() const { return _automaticLODAdjust; }
@ -49,34 +49,57 @@ public:
Q_INVOKABLE void setHMDLODDecreaseFPS(float value);
Q_INVOKABLE float getHMDLODDecreaseFPS() const;
Q_INVOKABLE float getHMDLODIncreaseFPS() const;
// User Tweakable LOD Items
Q_INVOKABLE QString getLODFeedbackText();
Q_INVOKABLE void setOctreeSizeScale(float sizeScale);
Q_INVOKABLE float getOctreeSizeScale() const { return _octreeSizeScale; }
Q_INVOKABLE void setBoundaryLevelAdjust(int boundaryLevelAdjust);
Q_INVOKABLE int getBoundaryLevelAdjust() const { return _boundaryLevelAdjust; }
Q_INVOKABLE float getLODDecreaseFPS();
Q_INVOKABLE float getLODIncreaseFPS();
Q_INVOKABLE float getLODDecreaseFPS() const;
Q_INVOKABLE float getLODIncreaseFPS() const;
Q_INVOKABLE float getFoo() const { return getMeasuredFPS(); }
Q_PROPERTY(float presentTime READ getPresentTime)
Q_PROPERTY(float engineRunTime READ getEngineRunTime)
Q_PROPERTY(float gpuTime READ getGPUTime)
Q_PROPERTY(float avgRenderTime READ getAverageRenderTime)
Q_PROPERTY(float fps READ getMeasuredFPS)
Q_PROPERTY(float lodLevel READ getLODLevel)
Q_PROPERTY(float lodDecreaseFPS READ getLODDecreaseFPS)
Q_PROPERTY(float lodIncreaseFPS READ getLODIncreaseFPS)
float getPresentTime() const { return _presentTime; }
float getEngineRunTime() const { return _engineRunTime; }
float getGPUTime() const { return _gpuTime; }
static bool shouldRender(const RenderArgs* args, const AABox& bounds);
void autoAdjustLOD(float renderTime, float realTimeDelta);
void setRenderTimes(float presentTime, float engineRunTime, float gpuTime);
void autoAdjustLOD(float realTimeDelta);
void loadSettings();
void saveSettings();
void resetLODAdjust();
float getAverageRenderTime() const { return _avgRenderTime; };
float getMeasuredFPS() const { return (float)MSEC_PER_SECOND / _avgRenderTime; };
float getLODLevel() const;
signals:
void LODIncreased();
void LODDecreased();
private:
LODManager();
bool _automaticLODAdjust = true;
float _avgRenderTime { 0.0f };
float _presentTime { 0.0f }; // msec
float _engineRunTime { 0.0f }; // msec
float _gpuTime { 0.0f }; // msec
float _avgRenderTime { 0.0f }; // msec
float _desktopMaxRenderTime { DEFAULT_DESKTOP_MAX_RENDER_TIME };
float _hmdMaxRenderTime { DEFAULT_HMD_MAX_RENDER_TIME };

77
scripts/developer/utilities/render/lod.js Normal file
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@ -0,0 +1,77 @@
"use strict";
//
// lodi.js
// tablet-engine app
//
// Copyright 2018 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
(function() {
var TABLET_BUTTON_NAME = "LOD";
var QMLAPP_URL = Script.resolvePath("./lod.qml");
var ICON_URL = Script.resolvePath("../../../system/assets/images/lod-i.svg");
var ACTIVE_ICON_URL = Script.resolvePath("../../../system/assets/images/lod-a.svg");
var onScreen = false;
function onClicked() {
if (onScreen) {
tablet.gotoHomeScreen();
} else {
tablet.loadQMLSource(QMLAPP_URL);
}
}
var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
var button = tablet.addButton({
text: TABLET_BUTTON_NAME,
icon: ICON_URL,
activeIcon: ACTIVE_ICON_URL,
sortOrder: 1
});
var hasEventBridge = false;
function wireEventBridge(on) {
if (!tablet) {
print("Warning in wireEventBridge(): 'tablet' undefined!");
return;
}
if (on) {
if (!hasEventBridge) {
tablet.fromQml.connect(fromQml);
hasEventBridge = true;
}
} else {
if (hasEventBridge) {
tablet.fromQml.disconnect(fromQml);
hasEventBridge = false;
}
}
}
function onScreenChanged(type, url) {
onScreen = (url === QMLAPP_URL);
button.editProperties({isActive: onScreen});
wireEventBridge(onScreen);
}
function fromQml(message) {
}
button.clicked.connect(onClicked);
tablet.screenChanged.connect(onScreenChanged);
Script.scriptEnding.connect(function () {
if (onScreen) {
tablet.gotoHomeScreen();
}
button.clicked.disconnect(onClicked);
tablet.screenChanged.disconnect(onScreenChanged);
tablet.removeButton(button);
});
}());

92
scripts/developer/utilities/render/lod.qml Normal file
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@ -0,0 +1,92 @@
//
// lod.qml
// scripts/developer/utilities/render
//
// Created by Andrew Meadows on 2018.01.10
// Copyright 2018 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or https://www.apache.org/licenses/LICENSE-2.0.html
//
import QtQuick 2.5
import QtQuick.Controls 1.4
import "../lib/plotperf"
Item {
id: lodIU
anchors.fill:parent
Column {
id: stats
spacing: 8
anchors.fill:parent
function evalEvenHeight() {
// Why do we have to do that manually ? cannot seem to find a qml / anchor / layout mode that does that ?
return (height - spacing * (children.length - 1)) / children.length
}
PlotPerf {
title: "Load Indicators"
height: parent.evalEvenHeight()
object: LODManager
valueScale: 1
valueUnit: "ms"
plots: [
{
prop: "presentTime",
label: "present",
color: "#FFFF00"
},
{
prop: "engineRunTime",
label: "engineRun",
color: "#FF00FF"
},
{
prop: "gpuTime",
label: "gpu",
color: "#00FFFF"
}
]
}
PlotPerf {
title: "FPS"
height: parent.evalEvenHeight()
object: LODManager
valueScale: 1
valueUnit: "Hz"
plots: [
{
prop: "lodIncreaseFPS",
label: "LOD++",
color: "#66FF66"
},
{
prop: "fps",
label: "FPS",
color: "#FFFFFF"
},
{
prop: "lodDecreaseFPS",
label: "LOD--",
color: "#FF6666"
}
]
}
PlotPerf {
title: "LOD"
height: parent.evalEvenHeight()
object: LODManager
valueScale: 0.1
valueUnit: ""
plots: [
{
prop: "lodLevel",
label: "LOD",
color: "#9999FF"
}
]
}
}
}

46
scripts/system/assets/images/lod-a.svg Normal file
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@ -0,0 +1,46 @@
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