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Diffstat (limited to 'indra/newview/llreflectionmapmanager.cpp')
-rw-r--r-- | indra/newview/llreflectionmapmanager.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp new file mode 100644 index 0000000000..95b72e1d3b --- /dev/null +++ b/indra/newview/llreflectionmapmanager.cpp @@ -0,0 +1,106 @@ +/** + * @file llreflectionmapmanager.cpp + * @brief LLReflectionMapManager class implementation + * + * $LicenseInfo:firstyear=2022&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2022, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "llreflectionmapmanager.h" +#include "llviewercamera.h" + +LLReflectionMapManager::LLReflectionMapManager() +{ + +} + +struct CompareReflectionMapDistance +{ + +}; + + +struct CompareProbeDistance +{ + bool operator()(const LLReflectionMap& lhs, const LLReflectionMap& rhs) + { + return lhs.mDistance < rhs.mDistance; + } +}; + +// helper class to seed octree with probes +void LLReflectionMapManager::update() +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY; + + // naively drop probes every 16m as we move the camera around for now + // later, use LLSpatialPartition to manage probes + const F32 PROBE_SPACING = 16.f; + const U32 MAX_PROBES = 8; + + LLVector4a camera_pos; + camera_pos.load3(LLViewerCamera::instance().getOrigin().mV); + + for (auto& probe : mProbes) + { + LLVector4a d; + d.setSub(camera_pos, probe.mOrigin); + probe.mDistance = d.getLength3().getF32(); + } + + if (mProbes.empty() || mProbes[0].mDistance > PROBE_SPACING) + { + addProbe(LLViewerCamera::instance().getOrigin()); + } + + // update distance to camera for all probes + std::sort(mProbes.begin(), mProbes.end(), CompareProbeDistance()); + + if (mProbes.size() > MAX_PROBES) + { + mProbes.resize(MAX_PROBES); + } +} + +void LLReflectionMapManager::addProbe(const LLVector3& pos) +{ + LLReflectionMap probe; + probe.update(pos, 1024); + mProbes.push_back(probe); +} + +void LLReflectionMapManager::getReflectionMaps(std::vector<LLReflectionMap*>& maps) +{ + // just null out for now + U32 i = 0; + for (i = 0; i < maps.size() && i < mProbes.size(); ++i) + { + maps[i] = &(mProbes[i]); + } + + for (++i; i < maps.size(); ++i) + { + maps[i] = nullptr; + } +} + |