diff options
Diffstat (limited to 'indra/newview/llviewerobject.cpp')
| -rw-r--r-- | indra/newview/llviewerobject.cpp | 217 |
1 files changed, 185 insertions, 32 deletions
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp index 8d9f27556d..1209183229 100644 --- a/indra/newview/llviewerobject.cpp +++ b/indra/newview/llviewerobject.cpp @@ -105,8 +105,8 @@ //#define DEBUG_UPDATE_TYPE -BOOL gVelocityInterpolate = TRUE; -BOOL gPingInterpolate = TRUE; +BOOL LLViewerObject::sVelocityInterpolate = TRUE; +BOOL LLViewerObject::sPingInterpolate = TRUE; U32 LLViewerObject::sNumZombieObjects = 0; S32 LLViewerObject::sNumObjects = 0; @@ -117,6 +117,11 @@ S32 LLViewerObject::sAxisArrowLength(50); BOOL LLViewerObject::sPulseEnabled(FALSE); BOOL LLViewerObject::sUseSharedDrawables(FALSE); // TRUE +// sMaxUpdateInterpolationTime must be greater than sPhaseOutUpdateInterpolationTime +F64 LLViewerObject::sMaxUpdateInterpolationTime = 3.0; // For motion interpolation: after X seconds with no updates, don't predict object motion +F64 LLViewerObject::sPhaseOutUpdateInterpolationTime = 2.0; // For motion interpolation: after Y seconds with no updates, taper off motion prediction + + static LLFastTimer::DeclareTimer FTM_CREATE_OBJECT("Create Object"); // static @@ -212,6 +217,7 @@ LLViewerObject::LLViewerObject(const LLUUID &id, const LLPCode pcode, LLViewerRe mLastInterpUpdateSecs(0.f), mLastMessageUpdateSecs(0.f), mLatestRecvPacketID(0), + mCircuitPacketCount(0), mData(NULL), mAudioSourcep(NULL), mAudioGain(1.f), @@ -1868,7 +1874,7 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys, new_rot.normQuat(); - if (gPingInterpolate) + if (sPingInterpolate) { LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mesgsys->getSender()); if (cdp) @@ -1889,6 +1895,8 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys, // // + // WTF? If we're going to skip this message, why are we + // doing all the parenting, etc above? U32 packet_id = mesgsys->getCurrentRecvPacketID(); if (packet_id < mLatestRecvPacketID && mLatestRecvPacketID - packet_id < 65536) @@ -1898,6 +1906,7 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys, } mLatestRecvPacketID = packet_id; + mCircuitPacketCount = 0; // Set the change flags for scale if (new_scale != getScale()) @@ -2029,7 +2038,7 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys, // U32 ping_delay = mesgsys->mCircuitInfo.getPingDelay(); mLastInterpUpdateSecs = LLFrameTimer::getElapsedSeconds(); - mLastMessageUpdateSecs = LLFrameTimer::getElapsedSeconds(); + mLastMessageUpdateSecs = mLastInterpUpdateSecs; if (mDrawable.notNull()) { // Don't clear invisibility flag on update if still orphaned! @@ -2056,6 +2065,8 @@ BOOL LLViewerObject::isActive() const return TRUE; } + + BOOL LLViewerObject::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time) { static LLFastTimer::DeclareTimer ftm("Viewer Object"); @@ -2069,7 +2080,7 @@ BOOL LLViewerObject::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time) // CRO - don't velocity interp linked objects! // Leviathan - but DO velocity interp joints - if (!mStatic && gVelocityInterpolate && !isSelected()) + if (!mStatic && sVelocityInterpolate && !isSelected()) { // calculate dt from last update F32 dt_raw = (F32)(time - mLastInterpUpdateSecs); @@ -2159,33 +2170,8 @@ BOOL LLViewerObject::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time) return TRUE; } else - { - // linear motion - // PHYSICS_TIMESTEP is used below to correct for the fact that the velocity in object - // updates represents the average velocity of the last timestep, rather than the final velocity. - // the time dilation above should guarantee that dt is never less than PHYSICS_TIMESTEP, theoretically - // - // There is a problem here if dt is negative. . . - - // *TODO: should also wrap linear accel/velocity in check - // to see if object is selected, instead of explicitly - // zeroing it out - LLVector3 accel = getAcceleration(); - LLVector3 vel = getVelocity(); - - if (!(accel.isExactlyZero() && vel.isExactlyZero())) - { - LLVector3 pos = (vel + (0.5f * (dt-PHYSICS_TIMESTEP)) * accel) * dt; - - // region local - setPositionRegion(pos + getPositionRegion()); - setVelocity(vel + accel*dt); - - // for objects that are spinning but not translating, make sure to flag them as having moved - setChanged(MOVED | SILHOUETTE); - } - - mLastInterpUpdateSecs = time; + { // Move object based on it's velocity and rotation + interpolateLinearMotion(time, dt); } } @@ -2201,6 +2187,158 @@ BOOL LLViewerObject::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time) } +// Move an object due to idle-time viewer side updates by iterpolating motion +void LLViewerObject::interpolateLinearMotion(const F64 & time, const F32 & dt) +{ + // linear motion + // PHYSICS_TIMESTEP is used below to correct for the fact that the velocity in object + // updates represents the average velocity of the last timestep, rather than the final velocity. + // the time dilation above should guarantee that dt is never less than PHYSICS_TIMESTEP, theoretically + // + // *TODO: should also wrap linear accel/velocity in check + // to see if object is selected, instead of explicitly + // zeroing it out + + F64 time_since_last_update = time - mLastMessageUpdateSecs; + if (time_since_last_update <= 0.0 || dt <= 0.f) + { + return; + } + + LLVector3 accel = getAcceleration(); + LLVector3 vel = getVelocity(); + + if (sMaxUpdateInterpolationTime <= 0.0) + { // Old code path ... unbounded, simple interpolation + if (!(accel.isExactlyZero() && vel.isExactlyZero())) + { + LLVector3 pos = (vel + (0.5f * (dt-PHYSICS_TIMESTEP)) * accel) * dt; + + // region local + setPositionRegion(pos + getPositionRegion()); + setVelocity(vel + accel*dt); + + // for objects that are spinning but not translating, make sure to flag them as having moved + setChanged(MOVED | SILHOUETTE); + } + } + else if (!accel.isExactlyZero() || !vel.isExactlyZero()) // object is moving + { // Object is moving, and hasn't been too long since we got an update from the server + + // Calculate predicted position and velocity + LLVector3 new_pos = (vel + (0.5f * (dt-PHYSICS_TIMESTEP)) * accel) * dt; + LLVector3 new_v = accel * dt; + + if (time_since_last_update > sPhaseOutUpdateInterpolationTime) + { // Haven't seen a viewer update in a while, check to see if the ciruit is still active + if (mRegionp) + { // The simulator will NOT send updates if the object continues normally on the path + // predicted by the velocity and the acceleration (often gravity) sent to the viewer + // So check to see if the circuit is blocked, which means the sim is likely in a long lag + LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit( mRegionp->getHost() ); + if (cdp) + { + if (!cdp->isAlive() || // Circuit is dead or blocked + cdp->isBlocked() || // or doesn't seem to be getting any packets + (mCircuitPacketCount > 0 && mCircuitPacketCount == cdp->getPacketsIn())) + { + // Start to reduce motion interpolation since we haven't seen a server update in a while + F64 time_since_last_interpolation = time - mLastInterpUpdateSecs; + F64 phase_out = 1.0; + if (time_since_last_update > sMaxUpdateInterpolationTime) + { // Past the time limit, so stop the object + phase_out = 0.0; + //llinfos << "Motion phase out to zero" << llendl; + + // Kill angular motion as well. Note - not adding this due to paranoia + // about stopping rotation for llTargetOmega objects and not having it restart + // setAngularVelocity(LLVector3::zero); + } + else if (mLastInterpUpdateSecs - mLastMessageUpdateSecs > sPhaseOutUpdateInterpolationTime) + { // Last update was already phased out a bit + phase_out = (sMaxUpdateInterpolationTime - time_since_last_update) / + (sMaxUpdateInterpolationTime - time_since_last_interpolation); + //llinfos << "Continuing motion phase out of " << (F32) phase_out << llendl; + } + else + { // Phase out from full value + phase_out = (sMaxUpdateInterpolationTime - time_since_last_update) / + (sMaxUpdateInterpolationTime - sPhaseOutUpdateInterpolationTime); + //llinfos << "Starting motion phase out of " << (F32) phase_out << llendl; + } + phase_out = llclamp(phase_out, 0.0, 1.0); + + new_pos = new_pos * ((F32) phase_out); + new_v = new_v * ((F32) phase_out); + } + + // Save current circuit packet count to see if it changes + mCircuitPacketCount = cdp->getPacketsIn(); + } + } + } + + new_pos = new_pos + getPositionRegion(); + new_v = new_v + vel; + + + // Clamp interpolated position to minimum underground and maximum region height + LLVector3d new_pos_global = mRegionp->getPosGlobalFromRegion(new_pos); + F32 min_height; + if (isAvatar()) + { // Make a better guess about AVs not going underground + min_height = LLWorld::getInstance()->resolveLandHeightGlobal(new_pos_global); + min_height += (0.5f * getScale().mV[VZ]); + } + else + { // This will put the object underground, but we can't tell if it will stop + // at ground level or not + min_height = LLWorld::getInstance()->getMinAllowedZ(this, new_pos_global); + } + + new_pos.mV[VZ] = llmax(min_height, new_pos.mV[VZ]); + new_pos.mV[VZ] = llmin(LLWorld::getInstance()->getRegionMaxHeight(), new_pos.mV[VZ]); + + // Check to see if it's going off the region + LLVector3 temp(new_pos); + if (temp.clamp(0.f, mRegionp->getWidth())) + { // Going off this region, so see if we might end up on another region + LLVector3d old_pos_global = mRegionp->getPosGlobalFromRegion(getPositionRegion()); + new_pos_global = mRegionp->getPosGlobalFromRegion(new_pos); // Re-fetch in case it got clipped above + + // Clip the positions to known regions + LLVector3d clip_pos_global = LLWorld::getInstance()->clipToVisibleRegions(old_pos_global, new_pos_global); + if (clip_pos_global != new_pos_global) + { // Was clipped, so this means we hit a edge where there is no region to enter + + //llinfos << "Hit empty region edge, clipped predicted position to " << mRegionp->getPosRegionFromGlobal(clip_pos_global) + // << " from " << new_pos << llendl; + new_pos = mRegionp->getPosRegionFromGlobal(clip_pos_global); + + // Stop motion and get server update for bouncing on the edge + new_v.clear(); + setAcceleration(LLVector3::zero); + } + else + { // Let predicted movement cross into another region + //llinfos << "Predicting region crossing to " << new_pos << llendl; + } + } + + // Set new position and velocity + setPositionRegion(new_pos); + setVelocity(new_v); + + // for objects that are spinning but not translating, make sure to flag them as having moved + setChanged(MOVED | SILHOUETTE); + } + + // Update the last time we did anything + mLastInterpUpdateSecs = time; +} + + + BOOL LLViewerObject::setData(const U8 *datap, const U32 data_size) { LLMemType mt(LLMemType::MTYPE_OBJECT); @@ -5112,6 +5250,7 @@ void LLViewerObject::setRegion(LLViewerRegion *regionp) } mLatestRecvPacketID = 0; + mCircuitPacketCount = 0; mRegionp = regionp; for (child_list_t::iterator i = mChildList.begin(); i != mChildList.end(); ++i) @@ -5124,6 +5263,20 @@ void LLViewerObject::setRegion(LLViewerRegion *regionp) updateDrawable(FALSE); } +// virtual +void LLViewerObject::updateRegion(LLViewerRegion *regionp) +{ +// if (regionp) +// { +// F64 now = LLFrameTimer::getElapsedSeconds(); +// llinfos << "Updating to region " << regionp->getName() +// << ", ms since last update message: " << (F32)((now - mLastMessageUpdateSecs) * 1000.0) +// << ", ms since last interpolation: " << (F32)((now - mLastInterpUpdateSecs) * 1000.0) +// << llendl; +// } +} + + bool LLViewerObject::specialHoverCursor() const { return (mFlags & FLAGS_USE_PHYSICS) |