diff options
Diffstat (limited to 'indra/newview/lldrawable.cpp')
| -rw-r--r-- | indra/newview/lldrawable.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/indra/newview/lldrawable.cpp b/indra/newview/lldrawable.cpp index 4cf12a1533..069155c255 100644 --- a/indra/newview/lldrawable.cpp +++ b/indra/newview/lldrawable.cpp @@ -960,6 +960,30 @@ LLSpatialPartition* LLDrawable::getSpatialPartition() return retval; } +const S32 MIN_VIS_FRAME_RANGE = 2 ; //two frames:the current one and the last one. +//static +S32 LLDrawable::getMinVisFrameRange() +{ + return MIN_VIS_FRAME_RANGE ; +} + +BOOL LLDrawable::isRecentlyVisible() const +{ + //currently visible or visible in the previous frame. + BOOL vis = isVisible() || (sCurVisible - mVisible < MIN_VIS_FRAME_RANGE) ; + + if(!vis) + { + LLSpatialGroup* group = getSpatialGroup(); + if (group && group->isRecentlyVisible()) + { + mVisible = sCurVisible; + vis = TRUE ; + } + } + + return vis ; +} BOOL LLDrawable::isVisible() const { |