summaryrefslogtreecommitdiff
path: root/indra/newview/llviewerobject.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'indra/newview/llviewerobject.cpp')
-rw-r--r--indra/newview/llviewerobject.cpp177
1 files changed, 145 insertions, 32 deletions
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index fd3e80d755..63bf9a9c46 100644
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -102,8 +102,8 @@
//#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;
@@ -114,6 +114,11 @@ 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
@@ -1838,7 +1843,7 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
new_rot.normQuat();
- if (gPingInterpolate)
+ if (sPingInterpolate)
{
LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mesgsys->getSender());
if (cdp)
@@ -1859,6 +1864,8 @@ 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)
@@ -1999,7 +2006,7 @@ 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!
@@ -2026,6 +2033,8 @@ BOOL LLViewerObject::isActive() const
return TRUE;
}
+
+
BOOL LLViewerObject::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time)
{
static LLFastTimer::DeclareTimer ftm("Viewer Object");
@@ -2039,7 +2048,7 @@ 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);
@@ -2129,33 +2138,8 @@ 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);
}
}
@@ -2171,6 +2155,121 @@ 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 and
+ (time_since_last_update < sMaxUpdateInterpolationTime)) // we should interpolate motion
+ { // 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)
+ { // 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 (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);
+ }
+
+ 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 = 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);
@@ -4971,6 +5070,20 @@ 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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 23:47:47 +0000