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-rw-r--r--indra/newview/llheroprobemanager.cpp628
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diff --git a/indra/newview/llheroprobemanager.cpp b/indra/newview/llheroprobemanager.cpp
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+/**
+ * @file LLHeroProbeManager.cpp
+ * @brief LLHeroProbeManager 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 "llheroprobemanager.h"
+#include "llreflectionmapmanager.h"
+#include "llviewercamera.h"
+#include "llspatialpartition.h"
+#include "llviewerregion.h"
+#include "pipeline.h"
+#include "llviewershadermgr.h"
+#include "llviewercontrol.h"
+#include "llenvironment.h"
+#include "llstartup.h"
+#include "llagent.h"
+#include "llagentcamera.h"
+#include "llviewerwindow.h"
+#include "llviewerjoystick.h"
+#include "llviewermediafocus.h"
+
+extern bool gCubeSnapshot;
+extern bool gTeleportDisplay;
+
+// get the next highest power of two of v (or v if v is already a power of two)
+//defined in llvertexbuffer.cpp
+extern U32 nhpo2(U32 v);
+
+static void touch_default_probe(LLReflectionMap* probe)
+{
+ if (LLViewerCamera::getInstance())
+ {
+ LLVector3 origin = LLViewerCamera::getInstance()->getOrigin();
+ origin.mV[2] += 64.f;
+
+ probe->mOrigin.load3(origin.mV);
+ }
+}
+
+LLHeroProbeManager::LLHeroProbeManager()
+{
+}
+
+LLHeroProbeManager::~LLHeroProbeManager()
+{
+ cleanup();
+
+ mHeroVOList.clear();
+ mNearestHero = nullptr;
+}
+
+// helper class to seed octree with probes
+void LLHeroProbeManager::update()
+{
+ if (!LLPipeline::RenderMirrors || !LLPipeline::sReflectionProbesEnabled || gTeleportDisplay || LLStartUp::getStartupState() < STATE_PRECACHE)
+ {
+ return;
+ }
+
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;
+ llassert(!gCubeSnapshot); // assert a snapshot is not in progress
+ if (LLAppViewer::instance()->logoutRequestSent())
+ {
+ return;
+ }
+
+ initReflectionMaps();
+
+ if (!mRenderTarget.isComplete())
+ {
+ U32 color_fmt = GL_RGBA16F;
+ mRenderTarget.allocate(mProbeResolution, mProbeResolution, color_fmt, true);
+ }
+
+ if (mMipChain.empty())
+ {
+ U32 res = mProbeResolution;
+ U32 count = log2((F32)res) + 0.5f;
+
+ mMipChain.resize(count);
+ for (U32 i = 0; i < count; ++i)
+ {
+ mMipChain[i].allocate(res, res, GL_RGBA16F);
+ res /= 2;
+ }
+ }
+
+ llassert(mProbes[0] == mDefaultProbe);
+
+ LLVector4a probe_pos;
+ LLVector3 camera_pos = LLViewerCamera::instance().mOrigin;
+ bool probe_present = false;
+ LLQuaternion cameraOrientation = LLViewerCamera::instance().getQuaternion();
+ LLVector3 cameraDirection = LLVector3::z_axis * cameraOrientation;
+
+ if (mHeroVOList.size() > 0)
+ {
+ // Find our nearest hero candidate.
+ float last_distance = 99999.f;
+ float camera_center_distance = 99999.f;
+ for (auto vo : mHeroVOList)
+ {
+ if (vo && !vo->isDead() && vo->mDrawable.notNull() && vo->isReflectionProbe() && vo->getReflectionProbeIsBox())
+ {
+ float distance = (LLViewerCamera::instance().getOrigin() - vo->getPositionAgent()).magVec();
+ float center_distance = cameraDirection * (vo->getPositionAgent() - camera_pos);
+
+ if (distance > LLViewerCamera::instance().getFar())
+ continue;
+
+ LLVector4a center;
+ center.load3(vo->getPositionAgent().mV);
+ LLVector4a size;
+
+ size.load3(vo->getScale().mV);
+
+ bool visible = LLViewerCamera::instance().AABBInFrustum(center, size);
+
+ if (distance < last_distance && center_distance < camera_center_distance && visible)
+ {
+ probe_present = true;
+ mNearestHero = vo;
+ last_distance = distance;
+ camera_center_distance = center_distance;
+ }
+ }
+ else
+ {
+ unregisterViewerObject(vo);
+ }
+ }
+
+ // Don't even try to do anything if we didn't find a single mirror present.
+ if (!probe_present)
+ return;
+
+ if (mNearestHero != nullptr && !mNearestHero->isDead() && mNearestHero->mDrawable.notNull())
+ {
+ LLVector3 hero_pos = mNearestHero->getPositionAgent();
+ LLVector3 face_normal = LLVector3(0, 0, 1);
+
+ face_normal *= mNearestHero->mDrawable->getWorldRotation();
+ face_normal.normalize();
+
+ LLVector3 offset = camera_pos - hero_pos;
+ LLVector3 project = face_normal * (offset * face_normal);
+ LLVector3 reject = offset - project;
+ LLVector3 point = (reject - project) + hero_pos;
+
+ mCurrentClipPlane.setVec(hero_pos, face_normal);
+ mMirrorPosition = hero_pos;
+ mMirrorNormal = face_normal;
+
+ probe_pos.load3(point.mV);
+
+ // Detect visible faces of a cube based on camera direction and distance
+
+ // Define the cube faces
+ static LLVector3 cubeFaces[6] = {
+ LLVector3(1, 0, 0),
+ LLVector3(-1, 0, 0),
+ LLVector3(0, 1, 0),
+ LLVector3(0, -1, 0),
+ LLVector3(0, 0, 1),
+ LLVector3(0, 0, -1)
+ };
+
+ // Iterate through each face of the cube
+ for (int i = 0; i < 6; i++)
+ {
+ float cube_facing = fmax(-1, fmin(1.0f, cameraDirection * cubeFaces[i]));
+
+ cube_facing = 1 - cube_facing;
+
+ mFaceUpdateList[i] = ceilf(cube_facing * gPipeline.RenderHeroProbeConservativeUpdateMultiplier);
+ }
+
+
+ mProbes[0]->mOrigin = probe_pos;
+ }
+ else
+ {
+ mNearestHero = nullptr;
+ }
+
+ mHeroProbeStrength = 1;
+ }
+}
+
+void LLHeroProbeManager::renderProbes()
+{
+ if (!LLPipeline::RenderMirrors || !LLPipeline::sReflectionProbesEnabled || gTeleportDisplay ||
+ LLStartUp::getStartupState() < STATE_PRECACHE)
+ {
+ return;
+ }
+
+ static LLCachedControl<S32> sDetail(gSavedSettings, "RenderHeroReflectionProbeDetail", -1);
+ static LLCachedControl<S32> sLevel(gSavedSettings, "RenderHeroReflectionProbeLevel", 3);
+
+ F32 near_clip = 0.01f;
+ if (mNearestHero != nullptr && (gPipeline.RenderHeroProbeUpdateRate == 0 || (gFrameCount % gPipeline.RenderHeroProbeUpdateRate) == 0) &&
+ !gTeleportDisplay && !gDisconnected && !LLAppViewer::instance()->logoutRequestSent())
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("hpmu - realtime");
+
+ bool radiance_pass = gPipeline.mReflectionMapManager.isRadiancePass();
+
+ gPipeline.mReflectionMapManager.mRadiancePass = true;
+ mRenderingMirror = true;
+
+ doOcclusion();
+
+ for (U32 j = 0; j < mProbes.size(); j++)
+ {
+ for (U32 i = 0; i < 6; ++i)
+ {
+ if (mFaceUpdateList[i] > 0 && mCurrentProbeUpdateFrame % mFaceUpdateList[i] == 0)
+ {
+ updateProbeFace(mProbes[j], i, mNearestHero->getReflectionProbeIsDynamic() && sDetail > 0, near_clip);
+ mCurrentProbeUpdateFrame = 0;
+ }
+ }
+ generateRadiance(mProbes[j]);
+ }
+ mRenderingMirror = false;
+
+ gPipeline.mReflectionMapManager.mRadiancePass = radiance_pass;
+
+ mProbes[0]->mViewerObject = mNearestHero;
+ mProbes[0]->autoAdjustOrigin();
+ }
+
+ mCurrentProbeUpdateFrame++;
+}
+
+// Do the reflection map update render passes.
+// For every 12 calls of this function, one complete reflection probe radiance map and irradiance map is generated
+// First six passes render the scene with direct lighting only into a scratch space cube map at the end of the cube map array and generate
+// a simple mip chain (not convolution filter).
+// At the end of these passes, an irradiance map is generated for this probe and placed into the irradiance cube map array at the index for this probe
+// The next six passes render the scene with both radiance and irradiance into the same scratch space cube map and generate a simple mip chain.
+// At the end of these passes, a radiance map is generated for this probe and placed into the radiance cube map array at the index for this probe.
+// In effect this simulates single-bounce lighting.
+void LLHeroProbeManager::updateProbeFace(LLReflectionMap* probe, U32 face, bool is_dynamic, F32 near_clip)
+{
+ // hacky hot-swap of camera specific render targets
+ gPipeline.mRT = &gPipeline.mHeroProbeRT;
+
+ probe->update(mRenderTarget.getWidth(), face, is_dynamic, near_clip);
+
+ gPipeline.mRT = &gPipeline.mMainRT;
+
+ S32 sourceIdx = mReflectionProbeCount;
+
+ // Unlike the reflectionmap manager, all probes are considered "realtime" for hero probes.
+ sourceIdx += 1;
+
+ gGL.setColorMask(true, true);
+ LLGLDepthTest depth(GL_FALSE, GL_FALSE);
+ LLGLDisable cull(GL_CULL_FACE);
+ LLGLDisable blend(GL_BLEND);
+
+ // downsample to placeholder map
+ {
+ gGL.matrixMode(gGL.MM_MODELVIEW);
+ gGL.pushMatrix();
+ gGL.loadIdentity();
+
+ gGL.matrixMode(gGL.MM_PROJECTION);
+ gGL.pushMatrix();
+ gGL.loadIdentity();
+
+ gGL.flush();
+ U32 res = mProbeResolution * 2;
+
+ static LLStaticHashedString resScale("resScale");
+ static LLStaticHashedString direction("direction");
+ static LLStaticHashedString znear("znear");
+ static LLStaticHashedString zfar("zfar");
+
+ LLRenderTarget *screen_rt = &gPipeline.mHeroProbeRT.screen;
+ LLRenderTarget *depth_rt = &gPipeline.mHeroProbeRT.deferredScreen;
+
+ // perform a gaussian blur on the super sampled render before downsampling
+ {
+ gGaussianProgram.bind();
+ gGaussianProgram.uniform1f(resScale, 1.f / (mProbeResolution * 2));
+ S32 diffuseChannel = gGaussianProgram.enableTexture(LLShaderMgr::DEFERRED_DIFFUSE, LLTexUnit::TT_TEXTURE);
+
+ // horizontal
+ gGaussianProgram.uniform2f(direction, 1.f, 0.f);
+ gGL.getTexUnit(diffuseChannel)->bind(screen_rt);
+ mRenderTarget.bindTarget();
+ gPipeline.mScreenTriangleVB->setBuffer();
+ gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3);
+ mRenderTarget.flush();
+
+ // vertical
+ gGaussianProgram.uniform2f(direction, 0.f, 1.f);
+ gGL.getTexUnit(diffuseChannel)->bind(&mRenderTarget);
+ screen_rt->bindTarget();
+ gPipeline.mScreenTriangleVB->setBuffer();
+ gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3);
+ screen_rt->flush();
+ gGaussianProgram.unbind();
+ }
+
+ S32 mips = log2((F32)mProbeResolution) + 0.5f;
+
+ gReflectionMipProgram.bind();
+ S32 diffuseChannel = gReflectionMipProgram.enableTexture(LLShaderMgr::DEFERRED_DIFFUSE, LLTexUnit::TT_TEXTURE);
+ S32 depthChannel = gReflectionMipProgram.enableTexture(LLShaderMgr::DEFERRED_DEPTH, LLTexUnit::TT_TEXTURE);
+
+ for (int i = 0; i < mMipChain.size(); ++i)
+ {
+ LL_PROFILE_GPU_ZONE("probe mip");
+ mMipChain[i].bindTarget();
+ if (i == 0)
+ {
+ gGL.getTexUnit(diffuseChannel)->bind(screen_rt);
+ }
+ else
+ {
+ gGL.getTexUnit(diffuseChannel)->bind(&(mMipChain[i - 1]));
+ }
+
+ gGL.getTexUnit(depthChannel)->bind(depth_rt, true);
+
+ gReflectionMipProgram.uniform1f(resScale, 1.f / (mProbeResolution * 2));
+ gReflectionMipProgram.uniform1f(znear, probe->getNearClip());
+ gReflectionMipProgram.uniform1f(zfar, MAX_FAR_CLIP);
+
+ gPipeline.mScreenTriangleVB->setBuffer();
+ gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3);
+
+ res /= 2;
+
+ S32 mip = i - ((S32)mMipChain.size() - mips);
+
+ if (mip >= 0)
+ {
+ LL_PROFILE_GPU_ZONE("probe mip copy");
+ mTexture->bind(0);
+
+ glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, sourceIdx * 6 + face, 0, 0, res, res);
+
+ mTexture->unbind();
+ }
+ mMipChain[i].flush();
+ }
+
+ gGL.popMatrix();
+ gGL.matrixMode(gGL.MM_MODELVIEW);
+ gGL.popMatrix();
+
+ gGL.getTexUnit(diffuseChannel)->unbind(LLTexUnit::TT_TEXTURE);
+ gReflectionMipProgram.unbind();
+ }
+}
+
+// Separate out radiance generation as a separate stage.
+// This is to better enable independent control over how we generate radiance vs. having it coupled with processing the final face of the probe.
+// Useful when we may not always be rendering a full set of faces of the probe.
+void LLHeroProbeManager::generateRadiance(LLReflectionMap* probe)
+{
+ S32 sourceIdx = mReflectionProbeCount;
+
+ // Unlike the reflectionmap manager, all probes are considered "realtime" for hero probes.
+ sourceIdx += 1;
+ {
+ mMipChain[0].bindTarget();
+ static LLStaticHashedString sSourceIdx("sourceIdx");
+
+ {
+ // generate radiance map (even if this is not the irradiance map, we need the mip chain for the irradiance map)
+ gHeroRadianceGenProgram.bind();
+ mVertexBuffer->setBuffer();
+
+ S32 channel = gHeroRadianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY);
+ mTexture->bind(channel);
+ gHeroRadianceGenProgram.uniform1i(sSourceIdx, sourceIdx);
+ gHeroRadianceGenProgram.uniform1f(LLShaderMgr::REFLECTION_PROBE_MAX_LOD, mMaxProbeLOD);
+ gHeroRadianceGenProgram.uniform1f(LLShaderMgr::REFLECTION_PROBE_STRENGTH, mHeroProbeStrength);
+
+ U32 res = mMipChain[0].getWidth();
+
+ for (int i = 0; i < mMipChain.size() / 4; ++i)
+ {
+ LL_PROFILE_GPU_ZONE("probe radiance gen");
+ static LLStaticHashedString sMipLevel("mipLevel");
+ static LLStaticHashedString sRoughness("roughness");
+ static LLStaticHashedString sWidth("u_width");
+ static LLStaticHashedString sStrength("probe_strength");
+
+ gHeroRadianceGenProgram.uniform1f(sRoughness, (F32) i / (F32) (mMipChain.size() - 1));
+ gHeroRadianceGenProgram.uniform1f(sMipLevel, i);
+ gHeroRadianceGenProgram.uniform1i(sWidth, mProbeResolution);
+ gHeroRadianceGenProgram.uniform1f(sStrength, 1);
+
+ for (int cf = 0; cf < 6; ++cf)
+ { // for each cube face
+ LLCoordFrame frame;
+ frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]);
+
+ F32 mat[16];
+ frame.getOpenGLRotation(mat);
+ gGL.loadMatrix(mat);
+
+ mVertexBuffer->drawArrays(gGL.TRIANGLE_STRIP, 0, 4);
+
+ glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res);
+ }
+
+ if (i != mMipChain.size() - 1)
+ {
+ res /= 2;
+ glViewport(0, 0, res, res);
+ }
+ }
+
+ gHeroRadianceGenProgram.unbind();
+ }
+
+ mMipChain[0].flush();
+ }
+}
+
+void LLHeroProbeManager::updateUniforms()
+{
+ if (!gPipeline.RenderMirrors)
+ {
+ return;
+ }
+
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;
+
+ LLMatrix4a modelview;
+ modelview.loadu(gGLModelView);
+ LLVector4a oa; // scratch space for transformed origin
+ oa.set(0, 0, 0, 0);
+ mHeroData.heroProbeCount = 1;
+
+ if (mNearestHero != nullptr && !mNearestHero->isDead())
+ {
+ if (mNearestHero->getReflectionProbeIsBox())
+ {
+ LLVector3 s = mNearestHero->getScale().scaledVec(LLVector3(0.5f, 0.5f, 0.5f));
+ mProbes[0]->mRadius = s.magVec();
+ }
+ else
+ {
+ mProbes[0]->mRadius = mNearestHero->getScale().mV[0] * 0.5f;
+ }
+
+ modelview.affineTransform(mProbes[0]->mOrigin, oa);
+ mHeroData.heroShape = 0;
+ if (!mProbes[0]->getBox(mHeroData.heroBox))
+ {
+ mHeroData.heroShape = 1;
+ }
+
+ mHeroData.heroSphere.set(oa.getF32ptr());
+ mHeroData.heroSphere.mV[3] = mProbes[0]->mRadius;
+ }
+
+ mHeroData.heroMipCount = (GLint)mMipChain.size();
+}
+
+void LLHeroProbeManager::renderDebug()
+{
+ gDebugProgram.bind();
+
+ for (auto& probe : mProbes)
+ {
+ renderReflectionProbe(probe);
+ }
+
+ gDebugProgram.unbind();
+}
+
+
+void LLHeroProbeManager::initReflectionMaps()
+{
+ U32 count = LL_MAX_HERO_PROBE_COUNT;
+
+ if ((mTexture.isNull() || mReflectionProbeCount != count || mReset) && LLPipeline::RenderMirrors)
+ {
+
+ if (mReset)
+ {
+ cleanup();
+ }
+
+ mReset = false;
+ mReflectionProbeCount = count;
+ mProbeResolution = gSavedSettings.getS32("RenderHeroProbeResolution");
+ mMaxProbeLOD = log2f(mProbeResolution) - 1.f; // number of mips - 1
+
+ mTexture = new LLCubeMapArray();
+
+ // store mReflectionProbeCount+2 cube maps, final two cube maps are used for render target and radiance map generation source)
+ mTexture->allocate(mProbeResolution, 3, mReflectionProbeCount + 2);
+
+ if (mDefaultProbe.isNull())
+ {
+ llassert(mProbes.empty()); // default probe MUST be the first probe created
+ mDefaultProbe = new LLReflectionMap();
+ mProbes.push_back(mDefaultProbe);
+ }
+
+ llassert(mProbes[0] == mDefaultProbe);
+
+ // For hero probes, we treat this as the main mirror probe.
+
+ mDefaultProbe->mCubeIndex = 0;
+ mDefaultProbe->mCubeArray = mTexture;
+ mDefaultProbe->mDistance = gSavedSettings.getF32("RenderHeroProbeDistance");
+ mDefaultProbe->mRadius = 4096.f;
+ mDefaultProbe->mProbeIndex = 0;
+ touch_default_probe(mDefaultProbe);
+
+ mProbes.push_back(mDefaultProbe);
+ }
+
+ if (mVertexBuffer.isNull())
+ {
+ U32 mask = LLVertexBuffer::MAP_VERTEX;
+ LLPointer<LLVertexBuffer> buff = new LLVertexBuffer(mask);
+ buff->allocateBuffer(4, 0);
+
+ LLStrider<LLVector3> v;
+
+ buff->getVertexStrider(v);
+
+ v[0] = LLVector3(-1, -1, -1);
+ v[1] = LLVector3(1, -1, -1);
+ v[2] = LLVector3(-1, 1, -1);
+ v[3] = LLVector3(1, 1, -1);
+
+ buff->unmapBuffer();
+
+ mVertexBuffer = buff;
+ }
+}
+
+void LLHeroProbeManager::cleanup()
+{
+ mVertexBuffer = nullptr;
+ mRenderTarget.release();
+ mHeroRenderTarget.release();
+
+ mMipChain.clear();
+
+ mTexture = nullptr;
+
+ mProbes.clear();
+
+ mReflectionMaps.clear();
+
+ mDefaultProbe = nullptr;
+ mUpdatingProbe = nullptr;
+}
+
+void LLHeroProbeManager::doOcclusion()
+{
+ LLVector4a eye;
+ eye.load3(LLViewerCamera::instance().getOrigin().mV);
+
+ for (auto& probe : mProbes)
+ {
+ if (probe != nullptr && probe != mDefaultProbe)
+ {
+ probe->doOcclusion(eye);
+ }
+ }
+}
+
+void LLHeroProbeManager::reset()
+{
+ mReset = true;
+}
+
+bool LLHeroProbeManager::registerViewerObject(LLVOVolume* drawablep)
+{
+ llassert(drawablep != nullptr);
+
+ if (std::find(mHeroVOList.begin(), mHeroVOList.end(), drawablep) == mHeroVOList.end())
+ {
+ // Probe isn't in our list for consideration. Add it.
+ mHeroVOList.push_back(drawablep);
+ return true;
+ }
+
+ return false;
+}
+
+void LLHeroProbeManager::unregisterViewerObject(LLVOVolume* drawablep)
+{
+ std::vector<LLPointer<LLVOVolume>>::iterator found_itr = std::find(mHeroVOList.begin(), mHeroVOList.end(), drawablep);
+ if (found_itr != mHeroVOList.end())
+ {
+ mHeroVOList.erase(found_itr);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 20:07:41 +0000