overte-HifiExperiments/libraries/entities-renderer/src/RenderableEntityItem.cpp
2017-10-16 16:43:16 -07:00

382 lines
13 KiB
C++

//
// RenderableEntityItem.cpp
// interface/src
//
// Created by Brad Hefta-Gaub on 12/6/13.
// Copyright 2013 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
//
#include "RenderableEntityItem.h"
#include <ObjectMotionState.h>
#include "EntityTreeRenderer.h"
#include "RenderableLightEntityItem.h"
#include "RenderableLineEntityItem.h"
#include "RenderableModelEntityItem.h"
#include "RenderableParticleEffectEntityItem.h"
#include "RenderablePolyVoxEntityItem.h"
#include "RenderablePolyLineEntityItem.h"
#include "RenderableShapeEntityItem.h"
#include "RenderableTextEntityItem.h"
#include "RenderableWebEntityItem.h"
#include "RenderableZoneEntityItem.h"
// uncomment WANT_DETAILED_PROFILING to see some of the interesting profiling contexts
//#define WANT_DETAILED_PROFILING
using namespace render;
using namespace render::entities;
// These or the icon "name" used by the render item status value, they correspond to the atlas texture used by the DrawItemStatus
// job in the current rendering pipeline defined as of now (11/2015) in render-utils/RenderDeferredTask.cpp.
enum class RenderItemStatusIcon {
ACTIVE_IN_BULLET = 0,
PACKET_SENT = 1,
PACKET_RECEIVED = 2,
SIMULATION_OWNER = 3,
HAS_ACTIONS = 4,
OTHER_SIMULATION_OWNER = 5,
CLIENT_ONLY = 6,
NONE = 255
};
std::function<bool()> EntityRenderer::_entitiesShouldFadeFunction = []() { return true; };
void EntityRenderer::initEntityRenderers() {
REGISTER_ENTITY_TYPE_WITH_FACTORY(Model, RenderableModelEntityItem::factory)
REGISTER_ENTITY_TYPE_WITH_FACTORY(PolyVox, RenderablePolyVoxEntityItem::factory)
}
void EntityRenderer::makeStatusGetters(const EntityItemPointer& entity, Item::Status::Getters& statusGetters) {
auto nodeList = DependencyManager::get<NodeList>();
const QUuid& myNodeID = nodeList->getSessionUUID();
statusGetters.push_back([entity]() -> render::Item::Status::Value {
quint64 delta = usecTimestampNow() - entity->getLastEditedFromRemote();
const float WAIT_THRESHOLD_INV = 1.0f / (0.2f * USECS_PER_SECOND);
float normalizedDelta = delta * WAIT_THRESHOLD_INV;
// Status icon will scale from 1.0f down to 0.0f after WAIT_THRESHOLD
// Color is red if last update is after WAIT_THRESHOLD, green otherwise (120 deg is green)
return render::Item::Status::Value(1.0f - normalizedDelta, (normalizedDelta > 1.0f ?
render::Item::Status::Value::GREEN :
render::Item::Status::Value::RED),
(unsigned char)RenderItemStatusIcon::PACKET_RECEIVED);
});
statusGetters.push_back([entity] () -> render::Item::Status::Value {
quint64 delta = usecTimestampNow() - entity->getLastBroadcast();
const float WAIT_THRESHOLD_INV = 1.0f / (0.4f * USECS_PER_SECOND);
float normalizedDelta = delta * WAIT_THRESHOLD_INV;
// Status icon will scale from 1.0f down to 0.0f after WAIT_THRESHOLD
// Color is Magenta if last update is after WAIT_THRESHOLD, cyan otherwise (180 deg is green)
return render::Item::Status::Value(1.0f - normalizedDelta, (normalizedDelta > 1.0f ?
render::Item::Status::Value::MAGENTA :
render::Item::Status::Value::CYAN),
(unsigned char)RenderItemStatusIcon::PACKET_SENT);
});
statusGetters.push_back([entity] () -> render::Item::Status::Value {
ObjectMotionState* motionState = static_cast<ObjectMotionState*>(entity->getPhysicsInfo());
if (motionState && motionState->isActive()) {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::BLUE,
(unsigned char)RenderItemStatusIcon::ACTIVE_IN_BULLET);
}
return render::Item::Status::Value(0.0f, render::Item::Status::Value::BLUE,
(unsigned char)RenderItemStatusIcon::ACTIVE_IN_BULLET);
});
statusGetters.push_back([entity, myNodeID] () -> render::Item::Status::Value {
bool weOwnSimulation = entity->getSimulationOwner().matchesValidID(myNodeID);
bool otherOwnSimulation = !weOwnSimulation && !entity->getSimulationOwner().isNull();
if (weOwnSimulation) {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::BLUE,
(unsigned char)RenderItemStatusIcon::SIMULATION_OWNER);
} else if (otherOwnSimulation) {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::RED,
(unsigned char)RenderItemStatusIcon::OTHER_SIMULATION_OWNER);
}
return render::Item::Status::Value(0.0f, render::Item::Status::Value::BLUE,
(unsigned char)RenderItemStatusIcon::SIMULATION_OWNER);
});
statusGetters.push_back([entity] () -> render::Item::Status::Value {
if (entity->hasActions()) {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::GREEN,
(unsigned char)RenderItemStatusIcon::HAS_ACTIONS);
}
return render::Item::Status::Value(0.0f, render::Item::Status::Value::GREEN,
(unsigned char)RenderItemStatusIcon::HAS_ACTIONS);
});
statusGetters.push_back([entity, myNodeID] () -> render::Item::Status::Value {
if (entity->getClientOnly()) {
if (entity->getOwningAvatarID() == myNodeID) {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::GREEN,
(unsigned char)RenderItemStatusIcon::CLIENT_ONLY);
} else {
return render::Item::Status::Value(1.0f, render::Item::Status::Value::RED,
(unsigned char)RenderItemStatusIcon::CLIENT_ONLY);
}
}
return render::Item::Status::Value(0.0f, render::Item::Status::Value::GREEN,
(unsigned char)RenderItemStatusIcon::CLIENT_ONLY);
});
}
template <typename T>
std::shared_ptr<T> make_renderer(const EntityItemPointer& entity) {
T* rawResult = new T(entity);
// We want to use deleteLater so that renderer destruction gets pushed to the main thread
return std::shared_ptr<T>(rawResult, std::bind(&QObject::deleteLater, rawResult));
}
EntityRenderer::EntityRenderer(const EntityItemPointer& entity) : _entity(entity) {
}
EntityRenderer::~EntityRenderer() { }
//
// Smart payload proxy members, implementing the payload interface
//
Item::Bound EntityRenderer::getBound() {
return _bound;
}
ItemKey EntityRenderer::getKey() {
if (isTransparent()) {
return ItemKey::Builder::transparentShape().withTypeMeta();
}
return ItemKey::Builder::opaqueShape().withTypeMeta();
}
uint32_t EntityRenderer::metaFetchMetaSubItems(ItemIDs& subItems) {
if (Item::isValidID(_renderItemID)) {
subItems.emplace_back(_renderItemID);
return 1;
}
return 0;
}
void EntityRenderer::render(RenderArgs* args) {
if (!isValidRenderItem()) {
return;
}
if (!_renderUpdateQueued && needsRenderUpdate()) {
// FIXME find a way to spread out the calls to needsRenderUpdate so that only a given subset of the
// items checks every frame, like 1/N of the tree ever N frames
_renderUpdateQueued = true;
emit requestRenderUpdate();
}
if (_visible) {
doRender(args);
}
}
//
// Methods called by the EntityTreeRenderer
//
EntityRenderer::Pointer EntityRenderer::addToScene(EntityTreeRenderer& renderer, const EntityItemPointer& entity, const ScenePointer& scene, Transaction& transaction) {
EntityRenderer::Pointer result;
if (!entity) {
return result;
}
using Type = EntityTypes::EntityType_t;
auto type = entity->getType();
switch (type) {
case Type::Light:
result = make_renderer<LightEntityRenderer>(entity);
break;
case Type::Line:
result = make_renderer<LineEntityRenderer>(entity);
break;
case Type::Model:
result = make_renderer<ModelEntityRenderer>(entity);
break;
case Type::ParticleEffect:
result = make_renderer<ParticleEffectEntityRenderer>(entity);
break;
case Type::PolyLine:
result = make_renderer<PolyLineEntityRenderer>(entity);
break;
case Type::PolyVox:
result = make_renderer<PolyVoxEntityRenderer>(entity);
break;
case Type::Shape:
case Type::Box:
case Type::Sphere:
result = make_renderer<ShapeEntityRenderer>(entity);
break;
case Type::Text:
result = make_renderer<TextEntityRenderer>(entity);
break;
case Type::Web:
if (!nsightActive()) {
result = make_renderer<WebEntityRenderer>(entity);
}
break;
case Type::Zone:
result = make_renderer<ZoneEntityRenderer>(entity);
break;
default:
break;
}
if (result) {
result->addToScene(scene, transaction);
}
return result;
}
bool EntityRenderer::addToScene(const ScenePointer& scene, Transaction& transaction) {
_renderItemID = scene->allocateID();
// Complicated series of trusses
auto renderPayload = std::make_shared<PayloadProxyInterface::ProxyPayload>(shared_from_this());
Item::Status::Getters statusGetters;
makeStatusGetters(_entity, statusGetters);
renderPayload->addStatusGetters(statusGetters);
transaction.resetItem(_renderItemID, renderPayload);
updateInScene(scene, transaction);
onAddToScene(_entity);
return true;
}
void EntityRenderer::removeFromScene(const ScenePointer& scene, Transaction& transaction) {
onRemoveFromScene(_entity);
transaction.removeItem(_renderItemID);
Item::clearID(_renderItemID);
}
void EntityRenderer::updateInScene(const ScenePointer& scene, Transaction& transaction) {
#ifdef WANT_DETAILED_PROFILING
PROFILE_RANGE(simulation_physics, __FUNCTION__);
#endif
if (!isValidRenderItem()) {
return;
}
// FIXME is this excessive?
if (!needsRenderUpdate()) {
return;
}
doRenderUpdateSynchronous(scene, transaction, _entity);
transaction.updateItem<EntityRenderer>(_renderItemID, [this](EntityRenderer& self) {
if (!isValidRenderItem()) {
return;
}
// Happens on the render thread. Classes should use
doRenderUpdateAsynchronous(_entity);
_renderUpdateQueued = false;
});
}
//
// Internal methods
//
// Returns true if the item needs to have updateInscene called because of internal rendering
// changes (animation, fading, etc)
bool EntityRenderer::needsRenderUpdate() const {
if (_prevIsTransparent != isTransparent()) {
return true;
}
return needsRenderUpdateFromEntity(_entity);
}
// Returns true if the item in question needs to have updateInScene called because of changes in the entity
bool EntityRenderer::needsRenderUpdateFromEntity(const EntityItemPointer& entity) const {
bool success = false;
auto bound = _entity->getAABox(success);
if (success && _bound != bound) {
return true;
}
auto newModelTransform = _entity->getTransformToCenter(success);
// FIXME can we use a stale model transform here?
if (success && newModelTransform != _modelTransform) {
return true;
}
if (_visible != entity->getVisible()) {
return true;
}
if (_moving != entity->isMovingRelativeToParent()) {
return true;
}
return false;
}
void EntityRenderer::doRenderUpdateSynchronous(const ScenePointer& scene, Transaction& transaction, const EntityItemPointer& entity) {
#ifdef WANT_DETAILED_PROFILING
PROFILE_RANGE(simulation_physics, __FUNCTION__);
#endif
withWriteLock([&] {
auto transparent = isTransparent();
if (_prevIsTransparent && !transparent) {
_isFading = false;
}
_prevIsTransparent = transparent;
bool success = false;
auto bound = entity->getAABox(success);
if (success) {
_bound = bound;
}
auto newModelTransform = entity->getTransformToCenter(success);
if (success) {
_modelTransform = newModelTransform;
}
_moving = entity->isMovingRelativeToParent();
_visible = entity->getVisible();
});
}
void EntityRenderer::onAddToScene(const EntityItemPointer& entity) {
QObject::connect(this, &EntityRenderer::requestRenderUpdate, this, [this] {
auto renderer = DependencyManager::get<EntityTreeRenderer>();
if (renderer) {
renderer->onEntityChanged(_entity->getID());
}
}, Qt::QueuedConnection);
_changeHandlerId = entity->registerChangeHandler([this](const EntityItemID& changedEntity) {
auto renderer = DependencyManager::get<EntityTreeRenderer>();
if (renderer) {
renderer->onEntityChanged(changedEntity);
}
});
}
void EntityRenderer::onRemoveFromScene(const EntityItemPointer& entity) {
entity->deregisterChangeHandler(_changeHandlerId);
QObject::disconnect(this, &EntityRenderer::requestRenderUpdate, this, nullptr);
}