From 512c9615e513a6e4eda6dff7162b8e30619aac3e Mon Sep 17 00:00:00 2001
From: Xiaohong Bao <bao@lindenlab.com>
Date: Wed, 14 Jul 2010 13:27:58 -0600
Subject: [PATCH] EXT-8386: FIXED: link grass rendering to the Trees Mesh
detail slider
---
indra/newview/llvograss.cpp | 56 +++++++++++++++++++++++++++++++++++--
indra/newview/llvotree.cpp | 6 ++++
indra/newview/llvotree.h | 1 +
3 files changed, 61 insertions(+), 2 deletions(-)
diff --git a/indra/newview/llvograss.cpp b/indra/newview/llvograss.cpp
index a82afbeb76d..8a58a9c65b5 100644
--- a/indra/newview/llvograss.cpp
+++ b/indra/newview/llvograss.cpp
@@ -53,6 +53,7 @@
#include "llworld.h"
#include "lldir.h"
#include "llxmltree.h"
+#include "llvotree.h"
const S32 GRASS_MAX_BLADES = 32;
const F32 GRASS_BLADE_BASE = 0.25f; // Width of grass at base
@@ -294,6 +295,23 @@ BOOL LLVOGrass::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time)
return TRUE;
}
+ if(LLVOTree::isTreeRenderingStopped()) //stop rendering grass
+ {
+ if(mNumBlades)
+ {
+ mNumBlades = 0 ;
+ gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL, TRUE);
+ }
+ return TRUE ;
+ }
+ else if(!mNumBlades)//restart grass rendering
+ {
+ mNumBlades = GRASS_MAX_BLADES ;
+ gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL, TRUE);
+
+ return TRUE ;
+ }
+
if (mPatch && (mLastPatchUpdateTime != mPatch->getLastUpdateTime()))
{
gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_VOLUME, TRUE);
@@ -340,7 +358,20 @@ BOOL LLVOGrass::updateLOD()
{
return FALSE;
}
-
+ if(LLVOTree::isTreeRenderingStopped())
+ {
+ if(mNumBlades)
+ {
+ mNumBlades = 0 ;
+ gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL, TRUE);
+ }
+ return TRUE ;
+ }
+ if(!mNumBlades)
+ {
+ mNumBlades = GRASS_MAX_BLADES;
+ }
+
LLFace* face = mDrawable->getFace(0);
F32 tan_angle = 0.f;
@@ -387,8 +418,24 @@ static LLFastTimer::DeclareTimer FTM_UPDATE_GRASS("Update Grass");
BOOL LLVOGrass::updateGeometry(LLDrawable *drawable)
{
LLFastTimer ftm(FTM_UPDATE_GRASS);
+
dirtySpatialGroup();
- plantBlades();
+
+ if(!mNumBlades)//stop rendering grass
+ {
+ if (mDrawable->getNumFaces() > 0)
+ {
+ LLFace* facep = mDrawable->getFace(0);
+ if(facep)
+ {
+ facep->setSize(0, 0);
+ }
+ }
+ }
+ else
+ {
+ plantBlades();
+ }
return TRUE;
}
@@ -429,6 +476,11 @@ void LLVOGrass::getGeometry(S32 idx,
LLStrider<LLColor4U>& colorsp,
LLStrider<U16>& indicesp)
{
+ if(!mNumBlades)//stop rendering grass
+ {
+ return ;
+ }
+
mPatch = mRegionp->getLand().resolvePatchRegion(getPositionRegion());
if (mPatch)
mLastPatchUpdateTime = mPatch->getLastUpdateTime();
diff --git a/indra/newview/llvotree.cpp b/indra/newview/llvotree.cpp
index 5431aec07c2..10537a6eb5c 100644
--- a/indra/newview/llvotree.cpp
+++ b/indra/newview/llvotree.cpp
@@ -101,6 +101,12 @@ LLVOTree::~LLVOTree()
}
}
+//static
+bool LLVOTree::isTreeRenderingStopped()
+{
+ return LLVOTree::sTreeFactor < LLVOTree::sLODAngles[sMAX_NUM_TREE_LOD_LEVELS - 1] ;
+}
+
// static
void LLVOTree::initClass()
{
diff --git a/indra/newview/llvotree.h b/indra/newview/llvotree.h
index 036ad692b17..a6850e4790a 100644
--- a/indra/newview/llvotree.h
+++ b/indra/newview/llvotree.h
@@ -59,6 +59,7 @@ class LLVOTree : public LLViewerObject
// Initialize data that's only inited once per class.
static void initClass();
static void cleanupClass();
+ static bool isTreeRenderingStopped();
/*virtual*/ U32 processUpdateMessage(LLMessageSystem *mesgsys,
void **user_data,
--
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