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Possible fix for "4096 bug" affecting long Opensim teleports

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Patch by Tonya Souther (Firestorm)
Refereces:

https://jira.secondlife.com/browse/SVC-2941
http://redmine.kokuaviewer.org/issues/465
http://jira.phoenixviewer.com/browse/FIRE-11593
This commit is contained in:
Latif Khalifa
2013-09-10 03:53:03 +02:00
parent 27b2f14193
commit f7cf69ec95
1 changed files with 15 additions and 0 deletions
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15
indra/newview/pipeline.cpp
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@@ -155,6 +155,10 @@ const U32 DEFERRED_VB_MASK = LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_TE
// Max number of occluders to search for. JC
const S32 MAX_OCCLUDER_COUNT = 2;
//<FS:TS> FIRE-11593: Teleporting more than 4096 regions away clears screen
const F32 MAX_SHIFT_DISTANCE = 256.f * 4095; //maximum distance to shift spatial partitions
//</FS:TS> FIRE-11593
extern S32 gBoxFrame;
//extern BOOL gHideSelectedObjects;
extern BOOL gDisplaySwapBuffers;
@@ -4004,6 +4008,17 @@ void LLPipeline::renderGeom(LLCamera& camera, BOOL forceVBOUpdate)
//LLGLState::checkTextureChannels();
//LLGLState::checkClientArrays();
//<FS:TS> FIRE-11593: Teleporting more than 4096 regions away clears screen
// The spatial partition octree shift code has problems with
// shifts of more than 4096 regions (1M meters). We shift just
// less than that distance, and let later processing deal with
// all the spatial partitions that are shifted far enough away
// that we'll never see them anyway.
if (offset.length() > MAX_SHIFT_DISTANCE)
{
offseta.splat(MAX_SHIFT_DISTANCE);
}
//</FS:TS> FIRE-11593
//stop_glerror();