diff options
Diffstat (limited to 'indra/newview/llvocache.cpp')
| -rwxr-xr-x | indra/newview/llvocache.cpp | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/indra/newview/llvocache.cpp b/indra/newview/llvocache.cpp index dcd1ae391d..1cfda038a8 100755 --- a/indra/newview/llvocache.cpp +++ b/indra/newview/llvocache.cpp @@ -33,7 +33,10 @@ #include "lldrawable.h" #include "llviewerregion.h" #include "pipeline.h" +#include "llagentcamera.h" +F32 LLVOCacheEntry::sBackDistanceSquared = 0.f; +F32 LLVOCacheEntry::sBackAngleTanSquared = 0.f; BOOL LLVOCachePartition::sNeedsOcclusionCheck = FALSE; LLTrace::MemStatHandle LLVOCachePartition::sMemStat("LLVOCachePartition"); @@ -353,6 +356,21 @@ BOOL LLVOCacheEntry::writeToFile(LLAPRFile* apr_file) const return success ; } +//static +void LLVOCacheEntry::updateBackCullingFactors() +{ + //distance to keep objects = back_dist_factor * draw_distance + static LLCachedControl<F32> back_dist_factor(gSavedSettings,"BackDistanceFactor"); + + //squared tan(projection angle of the bbox), default is 10 (degree) + static LLCachedControl<F32> squared_back_angle(gSavedSettings,"BackProjectionAngleSquared"); + + sBackDistanceSquared = back_dist_factor * gAgentCamera.mDrawDistance; + sBackDistanceSquared *= sBackDistanceSquared; + + sBackAngleTanSquared = squared_back_angle; +} + bool LLVOCacheEntry::isRecentlyVisible() const { bool vis = LLViewerOctreeEntryData::isRecentlyVisible(); @@ -363,12 +381,10 @@ bool LLVOCacheEntry::isRecentlyVisible() const } //combination of projected area and squared distance - if(!vis && !mParentID && mSceneContrib > 0.0311f) //projection angle > 10 (degree) + if(!vis && !mParentID && mSceneContrib > sBackAngleTanSquared) { - //squared distance - const F32 SQUARED_CUT_OFF_DIST = 256.0; //16m F32 rad = getBinRadius(); - vis = (rad * rad / mSceneContrib < SQUARED_CUT_OFF_DIST); + vis = (rad * rad / mSceneContrib < sBackDistanceSquared); } return vis; |