143 lines
4.4 KiB
C++
143 lines
4.4 KiB
C++
/**
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* @file llreflectionmap.h
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* @brief LLReflectionMap class declaration
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*
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* $LicenseInfo:firstyear=2022&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2022, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#pragma once
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#include "llcubemaparray.h"
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#include "llmemory.h"
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class LLSpatialGroup;
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class LLViewerObject;
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class alignas(16) LLReflectionMap : public LLRefCount
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{
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LL_ALIGN_NEW
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public:
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enum class ProbeType
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{
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ALL = 0,
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RADIANCE,
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IRRADIANCE,
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REFLECTION
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};
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// allocate an environment map of the given resolution
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LLReflectionMap();
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~LLReflectionMap();
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// update this environment map
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// resolution - size of cube map to generate
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void update(U32 resolution, U32 face, bool force_dynamic = false, F32 near_clip = -1.f);
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// for volume partition probes, try to place this probe in the best spot
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void autoAdjustOrigin();
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// return true if given Reflection Map's influence volume intersect's with this one's
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bool intersects(LLReflectionMap* other);
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// Get the ambiance value to use for this probe
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F32 getAmbiance();
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// Get the near clip plane distance to use for this probe
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F32 getNearClip();
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// Return true if this probe should include avatars in its reflection map
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bool getIsDynamic();
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// get the encoded bounding box of this probe's influence volume
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// will only return a box if this probe is associated with a VOVolume
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// with its reflection probe influence volume to to VOLUME_TYPE_BOX
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// return false if no bounding box (treat as sphere influence volume)
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bool getBox(LLMatrix4& box);
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// return true if this probe is active for rendering
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bool isActive();
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// perform occlusion query/readback
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void doOcclusion(const LLVector4a& eye);
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// return false if this probe isn't currently relevant (for example, disabled due to graphics preferences)
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bool isRelevant();
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// point at which environment map was last generated from (in agent space)
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LLVector4a mOrigin;
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// distance from main viewer camera
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F32 mDistance = -1.f;
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// Minimum and maximum depth in current render camera
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F32 mMinDepth = -1.f;
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F32 mMaxDepth = -1.f;
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// radius of this probe's affected area
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F32 mRadius = 16.f;
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// last time this probe was updated (or when its update timer got reset)
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F32 mLastUpdateTime = 0.f;
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// last time this probe was bound for rendering
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F32 mLastBindTime = 0.f;
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// cube map used to sample this environment map
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LLPointer<LLCubeMapArray> mCubeArray;
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S32 mCubeIndex = -1; // index into cube map array or -1 if not currently stored in cube map array
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// probe has had at least one full update and is ready to render
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bool mComplete = false;
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// fade in parameter for this probe
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F32 mFadeIn = 0.f;
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// index into array packed by LLReflectionMapManager::getReflectionMaps
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// WARNING -- only valid immediately after call to getReflectionMaps
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S32 mProbeIndex = -1;
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// set of any LLReflectionMaps that intersect this map (maintained by LLReflectionMapManager
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std::vector<LLReflectionMap*> mNeighbors;
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// spatial group this probe is tracking (if any)
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LLSpatialGroup* mGroup = nullptr;
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// viewer object this probe is tracking (if any)
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LLViewerObject* mViewerObject = nullptr;
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// what priority should this probe have (higher is higher priority)
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// currently only 0 or 1
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// 0 - automatic probe
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// 1 - manual probe
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U32 mPriority = 0;
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// occlusion culling state
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GLuint mOcclusionQuery = 0;
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bool mOccluded = false;
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U32 mOcclusionPendingFrames = 0;
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ProbeType mType;
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};
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