diff options
author | Dave Parks <davep@lindenlab.com> | 2011-02-09 16:53:47 -0600 |
---|---|---|
committer | Dave Parks <davep@lindenlab.com> | 2011-02-09 16:53:47 -0600 |
commit | 10518eaaaef51f6d5a23a4c8fa15267bf9aa0821 (patch) | |
tree | 1177920fdf2982cf99349132a37acb1daf3f83e8 /indra/newview | |
parent | 068822b18d4e62381a25c833cfa2639eddd4c24d (diff) |
SH-874 Revert much of the bad water bounding box and distortion texture usage changes from SNOW-643 and properly occlusion cull void water patches for machines without depth clamp.
Diffstat (limited to 'indra/newview')
-rw-r--r-- | indra/newview/llspatialpartition.cpp | 2 | ||||
-rw-r--r-- | indra/newview/llworld.cpp | 454 |
2 files changed, 142 insertions, 314 deletions
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp index 40f1596139..5dd1b5ba7e 100644 --- a/indra/newview/llspatialpartition.cpp +++ b/indra/newview/llspatialpartition.cpp @@ -1670,7 +1670,7 @@ void LLSpatialGroup::doOcclusion(LLCamera* camera) if (!use_depth_clamp && mSpatialPartition->mDrawableType == LLDrawPool::POOL_VOIDWATER) { - LLGLSquashToFarClip squash(glh_get_current_projection()); + LLGLSquashToFarClip squash(glh_get_current_projection(), 1); if (camera->getOrigin().isExactlyZero()) { //origin is invalid, draw entire box mOcclusionVerts->drawRange(LLRender::TRIANGLE_FAN, 0, 7, 8, 0); diff --git a/indra/newview/llworld.cpp b/indra/newview/llworld.cpp index fa9b9d5bc3..146bab0c0a 100644 --- a/indra/newview/llworld.cpp +++ b/indra/newview/llworld.cpp @@ -870,320 +870,148 @@ void LLWorld::waterHeightRegionInfo(std::string const& sim_name, F32 water_heigh } } -// There are three types of water objects: -// Region water objects: the water in a region. -// Hole water objects: water in the void but within current draw distance. -// Edge water objects: the water outside the draw distance, up till the horizon. -// -// For example: -// -// -----------------------horizon------------------------- -// | | | | -// | Edge Water | | | -// | | | | -// | | | | -// | | | | -// | | | | -// | | rwidth | | -// | | <-----> | | -// ------------------------------------------------------- -// | |Hole |other| | | -// | |Water|reg. | | | -// | |-----------------| | -// | |other|cur. |<--> | | -// | |reg. | reg.| \__|_ draw distance | -// | |-----------------| | -// | | | |<--->| | -// | | | | \__|_ range | -// ------------------------------------------------------- -// | |<----width------>|<--horizon ext.->| -// | | | | -// | | | | -// | | | | -// | | | | -// | | | | -// | | | | -// | | | | -// ------------------------------------------------------- -// -void LLWorld::updateWaterObjects() -{ - if (!gAgent.getRegion()) - { - return; - } - if (mRegionList.empty()) - { - llwarns << "No regions!" << llendl; - return; - } - - // Region width in meters. - S32 const rwidth = (S32)REGION_WIDTH_U32; - - // The distance we might see into the void - // when standing on the edge of a region, in meters. - S32 const draw_distance = llceil(mLandFarClip); - - // We can only have "holes" in the water (where there no region) if we - // can have existing regions around it. Taking into account that this - // code is only executed when we enter a region, and not when we walk - // around in it, we (only) need to take into account regions that fall - // within the draw_distance. - // - // Set 'range' to draw_distance, rounded up to the nearest multiple of rwidth. - S32 const nsims = (draw_distance + rwidth - 1) / rwidth; - S32 const range = nsims * rwidth; - - // Get South-West corner of current region. - LLViewerRegion const* regionp = gAgent.getRegion(); - U32 region_x, region_y; - from_region_handle(regionp->getHandle(), ®ion_x, ®ion_y); - - // The min. and max. coordinates of the South-West corners of the Hole water objects. - S32 const min_x = (S32)region_x - range; - S32 const min_y = (S32)region_y - range; - S32 const max_x = (S32)region_x + range; - S32 const max_y = (S32)region_y + range; - - // Attempt to determine a sensible water height for all the - // Hole Water objects. - // - // It make little sense to try to guess what the best water - // height should be when that isn't completely obvious: if it's - // impossible to satisfy every region's water height without - // getting a jump in the water height. - // - // In order to keep the reasoning simple, we assume something - // logical as a group of connected regions, where the coastline - // is at the outer edge. Anything more complex that would "break" - // under such an assumption would probably break anyway (would - // depend on terrain editing and existing mega prims, say, if - // anything would make sense at all). - // - // So, what we do is find all connected regions within the - // draw distance that border void, and then pick the lowest - // water height of those (coast) regions. - S32 const n = 2 * nsims + 1; - S32 const origin = nsims + nsims * n; - std::vector<F32> water_heights(n * n); - std::vector<U8> checked(n * n, 0); // index = nx + ny * n + origin; - U8 const region_bit = 1; - U8 const hole_bit = 2; - U8 const bordering_hole_bit = 4; - U8 const bordering_edge_bit = 8; - // Use the legacy waterheight for the Edge water in the case - // that we don't find any Hole water at all. - F32 water_height = DEFAULT_WATER_HEIGHT; - int max_count = 0; - LL_DEBUGS("WaterHeight") << "Current region: " << regionp->getName() << "; water height: " << regionp->getWaterHeight() << " m." << LL_ENDL; - std::map<S32, int> water_height_counts; - typedef std::queue<std::pair<S32, S32>, std::deque<std::pair<S32, S32> > > nxny_pairs_type; - nxny_pairs_type nxny_pairs; - nxny_pairs.push(nxny_pairs_type::value_type(0, 0)); - water_heights[origin] = regionp->getWaterHeight(); - checked[origin] = region_bit; - // For debugging purposes. - int number_of_connected_regions = 1; - int uninitialized_regions = 0; - int bordering_hole = 0; - int bordering_edge = 0; - while(!nxny_pairs.empty()) - { - S32 const nx = nxny_pairs.front().first; - S32 const ny = nxny_pairs.front().second; - LL_DEBUGS("WaterHeight") << "nx,ny = " << nx << "," << ny << LL_ENDL; - S32 const index = nx + ny * n + origin; - nxny_pairs.pop(); - for (S32 dir = 0; dir < 4; ++dir) - { - S32 const cnx = nx + gDirAxes[dir][0]; - S32 const cny = ny + gDirAxes[dir][1]; - LL_DEBUGS("WaterHeight") << "dir = " << dir << "; cnx,cny = " << cnx << "," << cny << LL_ENDL; - S32 const cindex = cnx + cny * n + origin; - bool is_hole = false; - bool is_edge = false; - LLViewerRegion* new_region_found = NULL; - if (cnx < -nsims || cnx > nsims || - cny < -nsims || cny > nsims) - { - LL_DEBUGS("WaterHeight") << " Edge Water!" << LL_ENDL; - // Bumped into Edge water object. - is_edge = true; - } - else if (checked[cindex]) - { - LL_DEBUGS("WaterHeight") << " Already checked before!" << LL_ENDL; - // Already checked. - is_hole = (checked[cindex] & hole_bit); - } - else - { - S32 x = (S32)region_x + cnx * rwidth; - S32 y = (S32)region_y + cny * rwidth; - U64 region_handle = to_region_handle(x, y); - new_region_found = getRegionFromHandle(region_handle); - is_hole = !new_region_found; - checked[cindex] = is_hole ? hole_bit : region_bit; - } - if (is_hole) - { - // This was a region that borders at least one 'hole'. - // Count the found coastline. - F32 new_water_height = water_heights[index]; - LL_DEBUGS("WaterHeight") << " This is void; counting coastline with water height of " << new_water_height << LL_ENDL; - S32 new_water_height_cm = llround(new_water_height * 100); - int count = (water_height_counts[new_water_height_cm] += 1); - // Just use the lowest water height: this is mainly about the horizon water, - // and whatever we do, we don't want it to be possible to look under the water - // when looking in the distance: it is better to make a step downwards in water - // height when going away from the avie than a step upwards. However, since - // everyone is used to DEFAULT_WATER_HEIGHT, don't allow a single region - // to drag the water level below DEFAULT_WATER_HEIGHT on it's own. - if (bordering_hole == 0 || // First time we get here. - (new_water_height >= DEFAULT_WATER_HEIGHT && - new_water_height < water_height) || - (new_water_height < DEFAULT_WATER_HEIGHT && - count > max_count) - ) - { - water_height = new_water_height; - } - if (count > max_count) - { - max_count = count; - } - if (!(checked[index] & bordering_hole_bit)) - { - checked[index] |= bordering_hole_bit; - ++bordering_hole; - } - } - else if (is_edge && !(checked[index] & bordering_edge_bit)) - { - checked[index] |= bordering_edge_bit; - ++bordering_edge; - } - if (!new_region_found) - { - // Dead end, there is no region here. - continue; - } - // Found a new connected region. - ++number_of_connected_regions; - if (new_region_found->getName().empty()) - { - // Uninitialized LLViewerRegion, don't use it's water height. - LL_DEBUGS("WaterHeight") << " Uninitialized region." << LL_ENDL; - ++uninitialized_regions; - continue; - } - nxny_pairs.push(nxny_pairs_type::value_type(cnx, cny)); - water_heights[cindex] = new_region_found->getWaterHeight(); - LL_DEBUGS("WaterHeight") << " Found a new region (name: " << new_region_found->getName() << "; water height: " << water_heights[cindex] << " m)!" << LL_ENDL; - } - } - llinfos << "Number of connected regions: " << number_of_connected_regions << " (" << uninitialized_regions << - " uninitialized); number of regions bordering Hole water: " << bordering_hole << - "; number of regions bordering Edge water: " << bordering_edge << llendl; - llinfos << "Coastline count (height, count): "; - bool first = true; - for (std::map<S32, int>::iterator iter = water_height_counts.begin(); iter != water_height_counts.end(); ++iter) - { - if (!first) llcont << ", "; - llcont << "(" << (iter->first / 100.f) << ", " << iter->second << ")"; - first = false; - } - llcont << llendl; - llinfos << "Water height used for Hole and Edge water objects: " << water_height << llendl; - - // Update all Region water objects. - for (region_list_t::iterator iter = mRegionList.begin(); iter != mRegionList.end(); ++iter) - { - LLViewerRegion* regionp = *iter; - LLVOWater* waterp = regionp->getLand().getWaterObj(); - if (waterp) - { - gObjectList.updateActive(waterp); - } - } - - // Clean up all existing Hole water objects. - for (std::list<LLVOWater*>::iterator iter = mHoleWaterObjects.begin(); - iter != mHoleWaterObjects.end(); ++iter) - { - LLVOWater* waterp = *iter; - gObjectList.killObject(waterp); - } - mHoleWaterObjects.clear(); +void LLWorld::updateWaterObjects()
+{
+ if (!gAgent.getRegion())
+ {
+ return;
+ }
+ if (mRegionList.empty())
+ {
+ llwarns << "No regions!" << llendl;
+ return;
+ }
+
+ // First, determine the min and max "box" of water objects
+ S32 min_x = 0;
+ S32 min_y = 0;
+ S32 max_x = 0;
+ S32 max_y = 0;
+ U32 region_x, region_y;
+
+ S32 rwidth = 256;
+
+ // We only want to fill in water for stuff that's near us, say, within 256 or 512m
+ S32 range = LLViewerCamera::getInstance()->getFar() > 256.f ? 512 : 256;
+
+ LLViewerRegion* regionp = gAgent.getRegion();
+ from_region_handle(regionp->getHandle(), ®ion_x, ®ion_y);
+
+ min_x = (S32)region_x - range;
+ min_y = (S32)region_y - range;
+ max_x = (S32)region_x + range;
+ max_y = (S32)region_y + range;
+
+ F32 height = 0.f;
+
+ for (region_list_t::iterator iter = mRegionList.begin();
+ iter != mRegionList.end(); ++iter)
+ {
+ LLViewerRegion* regionp = *iter;
+ LLVOWater* waterp = regionp->getLand().getWaterObj();
+ height += regionp->getWaterHeight();
+ if (waterp)
+ {
+ gObjectList.updateActive(waterp);
+ }
+ }
+
+ for (std::list<LLVOWater*>::iterator iter = mHoleWaterObjects.begin();
+ iter != mHoleWaterObjects.end(); ++ iter)
+ {
+ LLVOWater* waterp = *iter;
+ gObjectList.killObject(waterp);
+ }
+ mHoleWaterObjects.clear();
+
+ // Now, get a list of the holes
+ S32 x, y;
+ for (x = min_x; x <= max_x; x += rwidth)
+ {
+ for (y = min_y; y <= max_y; y += rwidth)
+ {
+ U64 region_handle = to_region_handle(x, y);
+ if (!getRegionFromHandle(region_handle))
+ {
+ LLVOWater* waterp = (LLVOWater *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_WATER, gAgent.getRegion());
+ waterp->setUseTexture(FALSE);
+ waterp->setPositionGlobal(LLVector3d(x + rwidth/2,
+ y + rwidth/2,
+ 256.f+DEFAULT_WATER_HEIGHT));
+ waterp->setScale(LLVector3((F32)rwidth, (F32)rwidth, 512.f));
+ gPipeline.createObject(waterp);
+ mHoleWaterObjects.push_back(waterp);
+ }
+ }
+ }
+
+ // Update edge water objects
+ S32 wx, wy;
+ S32 center_x, center_y;
+ wx = (max_x - min_x) + rwidth;
+ wy = (max_y - min_y) + rwidth;
+ center_x = min_x + (wx >> 1);
+ center_y = min_y + (wy >> 1);
+
+ S32 add_boundary[4] = {
+ 512 - (max_x - region_x),
+ 512 - (max_y - region_y),
+ 512 - (region_x - min_x),
+ 512 - (region_y - min_y) };
+
+ S32 dir;
+ for (dir = 0; dir < 8; dir++)
+ {
+ S32 dim[2] = { 0 };
+ switch (gDirAxes[dir][0])
+ {
+ case -1: dim[0] = add_boundary[2]; break;
+ case 0: dim[0] = wx; break;
+ default: dim[0] = add_boundary[0]; break;
+ }
+ switch (gDirAxes[dir][1])
+ {
+ case -1: dim[1] = add_boundary[3]; break;
+ case 0: dim[1] = wy; break;
+ default: dim[1] = add_boundary[1]; break;
+ }
+
+ // Resize and reshape the water objects
+ const S32 water_center_x = center_x + llround((wx + dim[0]) * 0.5f * gDirAxes[dir][0]);
+ const S32 water_center_y = center_y + llround((wy + dim[1]) * 0.5f * gDirAxes[dir][1]);
+
+ LLVOWater* waterp = mEdgeWaterObjects[dir];
+ if (!waterp || waterp->isDead())
+ {
+ // The edge water objects can be dead because they're attached to the region that the
+ // agent was in when they were originally created.
+ mEdgeWaterObjects[dir] = (LLVOWater *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_VOID_WATER,
+ gAgent.getRegion());
+ waterp = mEdgeWaterObjects[dir];
+ waterp->setUseTexture(FALSE);
+ waterp->setIsEdgePatch(TRUE);
+ gPipeline.createObject(waterp);
+ }
+
+ waterp->setRegion(gAgent.getRegion());
+ LLVector3d water_pos(water_center_x, water_center_y,
+ DEFAULT_WATER_HEIGHT+256.f);
+ LLVector3 water_scale((F32) dim[0], (F32) dim[1], 512.f);
+
+ //stretch out to horizon
+ water_scale.mV[0] += fabsf(2048.f * gDirAxes[dir][0]);
+ water_scale.mV[1] += fabsf(2048.f * gDirAxes[dir][1]);
+
+ water_pos.mdV[0] += 1024.f * gDirAxes[dir][0];
+ water_pos.mdV[1] += 1024.f * gDirAxes[dir][1];
+
+ waterp->setPositionGlobal(water_pos);
+ waterp->setScale(water_scale);
+
+ gObjectList.updateActive(waterp);
+ }
+}
- // Let the Edge and Hole water boxes be 1024 meter high so that they - // are never too small to be drawn (A LL_VO_*_WATER box has water - // rendered on it's bottom surface only), and put their bottom at - // the current regions water height. - F32 const box_height = 1024; - F32 const water_center_z = water_height + box_height / 2; - - // Create new Hole water objects within 'range' where there is no region. - for (S32 x = min_x; x <= max_x; x += rwidth) - { - for (S32 y = min_y; y <= max_y; y += rwidth) - { - U64 region_handle = to_region_handle(x, y); - if (!getRegionFromHandle(region_handle)) - { - LLVOWater* waterp = (LLVOWater*)gObjectList.createObjectViewer(LLViewerObject::LL_VO_VOID_WATER, gAgent.getRegion()); - waterp->setUseTexture(FALSE); - waterp->setPositionGlobal(LLVector3d(x + rwidth / 2, y + rwidth / 2, water_center_z)); - waterp->setScale(LLVector3((F32)rwidth, (F32)rwidth, box_height)); - gPipeline.createObject(waterp); - mHoleWaterObjects.push_back(waterp); - } - } - } - - // Center of the region. - S32 const center_x = region_x + rwidth / 2; - S32 const center_y = region_y + rwidth / 2; - // Width of the area with Hole water objects. - S32 const width = rwidth + 2 * range; - S32 const horizon_extend = 2048 + 512 - range; // Legacy value. - // The overlap is needed to get rid of sky pixels being visible between the - // Edge and Hole water object at greater distances (due to floating point - // round off errors). - S32 const edge_hole_overlap = 1; // Twice the actual overlap. - - for (S32 dir = 0; dir < 8; ++dir) - { - // Size of the Edge water objects. - S32 const dim_x = (gDirAxes[dir][0] == 0) ? width : (horizon_extend + edge_hole_overlap); - S32 const dim_y = (gDirAxes[dir][1] == 0) ? width : (horizon_extend + edge_hole_overlap); - // And their position. - S32 const water_center_x = center_x + (width + horizon_extend) / 2 * gDirAxes[dir][0]; - S32 const water_center_y = center_y + (width + horizon_extend) / 2 * gDirAxes[dir][1]; - - LLVOWater* waterp = mEdgeWaterObjects[dir]; - if (!waterp || waterp->isDead()) - { - // The edge water objects can be dead because they're attached to the region that the - // agent was in when they were originally created. - mEdgeWaterObjects[dir] = (LLVOWater *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_VOID_WATER, gAgent.getRegion()); - waterp = mEdgeWaterObjects[dir]; - waterp->setUseTexture(FALSE); - waterp->setIsEdgePatch(TRUE); // Mark that this is edge water and not hole water. - gPipeline.createObject(waterp); - } - - waterp->setRegion(gAgent.getRegion()); - LLVector3d water_pos(water_center_x, water_center_y, water_center_z); - LLVector3 water_scale((F32) dim_x, (F32) dim_y, box_height); - - waterp->setPositionGlobal(water_pos); - waterp->setScale(water_scale); - - gObjectList.updateActive(waterp); - } -} void LLWorld::shiftRegions(const LLVector3& offset) { |