diff options
author | Brad Linden <brad@lindenlab.com> | 2024-05-23 11:31:19 -0700 |
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committer | Brad Linden <brad@lindenlab.com> | 2024-05-23 11:31:19 -0700 |
commit | a1f49564d670a2c41bfa25c833bba2564b9b7f48 (patch) | |
tree | 1d205e51bc37621916a17d459ad83782fe41f975 /indra/llmath/llvolumeoctree.cpp | |
parent | 6af5db09faf5ea33a2d4c47b64e76f42edae178a (diff) | |
parent | 6377610f6587989c126b00f490dfc8d527a1c2ce (diff) |
Merge remote-tracking branch 'origin/DRTVWR-600-maint-A' into brad/merge-maint-a-to-dev
Diffstat (limited to 'indra/llmath/llvolumeoctree.cpp')
-rw-r--r-- | indra/llmath/llvolumeoctree.cpp | 364 |
1 files changed, 182 insertions, 182 deletions
diff --git a/indra/llmath/llvolumeoctree.cpp b/indra/llmath/llvolumeoctree.cpp index aa35b4cdd2..7a4d313fb1 100644 --- a/indra/llmath/llvolumeoctree.cpp +++ b/indra/llmath/llvolumeoctree.cpp @@ -1,25 +1,25 @@ -/** +/** * @file llvolumeoctree.cpp * * $LicenseInfo:firstyear=2002&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, 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 * $/LicenseInfo$ */ @@ -29,54 +29,54 @@ bool LLLineSegmentBoxIntersect(const LLVector4a& start, const LLVector4a& end, const LLVector4a& center, const LLVector4a& size) { - LLVector4a fAWdU; - LLVector4a dir; - LLVector4a diff; + LLVector4a fAWdU; + LLVector4a dir; + LLVector4a diff; + + dir.setSub(end, start); + dir.mul(0.5f); + + diff.setAdd(end,start); + diff.mul(0.5f); + diff.sub(center); + fAWdU.setAbs(dir); - dir.setSub(end, start); - dir.mul(0.5f); + LLVector4a rhs; + rhs.setAdd(size, fAWdU); - diff.setAdd(end,start); - diff.mul(0.5f); - diff.sub(center); - fAWdU.setAbs(dir); + LLVector4a lhs; + lhs.setAbs(diff); - LLVector4a rhs; - rhs.setAdd(size, fAWdU); + U32 grt = lhs.greaterThan(rhs).getGatheredBits(); - LLVector4a lhs; - lhs.setAbs(diff); + if (grt & 0x7) + { + return false; + } - U32 grt = lhs.greaterThan(rhs).getGatheredBits(); + LLVector4a f; + f.setCross3(dir, diff); + f.setAbs(f); - if (grt & 0x7) - { - return false; - } - - LLVector4a f; - f.setCross3(dir, diff); - f.setAbs(f); + LLVector4a v0, v1; - LLVector4a v0, v1; + v0 = _mm_shuffle_ps(size, size,_MM_SHUFFLE(3,0,0,1)); + v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,1,2,2)); + lhs.setMul(v0, v1); - v0 = _mm_shuffle_ps(size, size,_MM_SHUFFLE(3,0,0,1)); - v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,1,2,2)); - lhs.setMul(v0, v1); + v0 = _mm_shuffle_ps(size, size, _MM_SHUFFLE(3,1,2,2)); + v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,0,0,1)); + rhs.setMul(v0, v1); + rhs.add(lhs); - v0 = _mm_shuffle_ps(size, size, _MM_SHUFFLE(3,1,2,2)); - v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,0,0,1)); - rhs.setMul(v0, v1); - rhs.add(lhs); - - grt = f.greaterThan(rhs).getGatheredBits(); + grt = f.greaterThan(rhs).getGatheredBits(); - return (grt & 0x7) == 0; + return (grt & 0x7) == 0; } LLVolumeOctreeListener::LLVolumeOctreeListener(LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* node) { - node->addListener(this); + node->addListener(this); } LLVolumeOctreeListener::~LLVolumeOctreeListener() @@ -84,134 +84,134 @@ LLVolumeOctreeListener::~LLVolumeOctreeListener() } -void LLVolumeOctreeListener::handleChildAddition(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* parent, +void LLVolumeOctreeListener::handleChildAddition(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* parent, LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* child) { - new LLVolumeOctreeListener(child); + new LLVolumeOctreeListener(child); } -LLOctreeTriangleRayIntersect::LLOctreeTriangleRayIntersect(const LLVector4a& start, const LLVector4a& dir, +LLOctreeTriangleRayIntersect::LLOctreeTriangleRayIntersect(const LLVector4a& start, const LLVector4a& dir, LLVolumeFace* face, F32* closest_t, - LLVector4a* intersection,LLVector2* tex_coord, LLVector4a* normal, LLVector4a* tangent) + LLVector4a* intersection,LLVector2* tex_coord, LLVector4a* normal, LLVector4a* tangent) : mStart(start), - mDir(dir), - mIntersection(intersection), - mTexCoord(tex_coord), - mNormal(normal), - mTangent(tangent), + mDir(dir), + mIntersection(intersection), + mTexCoord(tex_coord), + mNormal(normal), + mTangent(tangent), mFace(face), - mClosestT(closest_t), - mHitFace(false) + mClosestT(closest_t), + mHitFace(false) { - mEnd.setAdd(mStart, mDir); + mEnd.setAdd(mStart, mDir); } void LLOctreeTriangleRayIntersect::traverse(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* node) { - LLVolumeOctreeListener* vl = (LLVolumeOctreeListener*) node->getListener(0); - - if (LLLineSegmentBoxIntersect(mStart, mEnd, vl->mBounds[0], vl->mBounds[1])) - { - node->accept(this); - for (S32 i = 0; i < node->getChildCount(); ++i) - { - traverse(node->getChild(i)); - } - } + LLVolumeOctreeListener* vl = (LLVolumeOctreeListener*) node->getListener(0); + + if (LLLineSegmentBoxIntersect(mStart, mEnd, vl->mBounds[0], vl->mBounds[1])) + { + node->accept(this); + for (S32 i = 0; i < node->getChildCount(); ++i) + { + traverse(node->getChild(i)); + } + } } void LLOctreeTriangleRayIntersect::visit(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* node) { for (typename LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>::const_element_iter iter = - node->getDataBegin(); iter != node->getDataEnd(); ++iter) - { - const LLVolumeTriangle* tri = *iter; - - F32 a, b, t; - - if (LLTriangleRayIntersect(*tri->mV[0], *tri->mV[1], *tri->mV[2], - mStart, mDir, a, b, t)) - { - if ((t >= 0.f) && // if hit is after start - (t <= 1.f) && // and before end - (t < *mClosestT)) // and this hit is closer - { - *mClosestT = t; - mHitFace = true; + node->getDataBegin(); iter != node->getDataEnd(); ++iter) + { + const LLVolumeTriangle* tri = *iter; + + F32 a, b, t; + + if (LLTriangleRayIntersect(*tri->mV[0], *tri->mV[1], *tri->mV[2], + mStart, mDir, a, b, t)) + { + if ((t >= 0.f) && // if hit is after start + (t <= 1.f) && // and before end + (t < *mClosestT)) // and this hit is closer + { + *mClosestT = t; + mHitFace = true; mHitTriangle = tri; - if (mIntersection != NULL) - { - LLVector4a intersect = mDir; - intersect.mul(*mClosestT); - intersect.add(mStart); - *mIntersection = intersect; - } - - U32 idx0 = tri->mIndex[0]; - U32 idx1 = tri->mIndex[1]; - U32 idx2 = tri->mIndex[2]; - - if (mTexCoord != NULL) - { - LLVector2* tc = (LLVector2*) mFace->mTexCoords; - *mTexCoord = ((1.f - a - b) * tc[idx0] + - a * tc[idx1] + - b * tc[idx2]); - - } - - if (mNormal != NULL) - { - LLVector4a* norm = mFace->mNormals; - - LLVector4a n1,n2,n3; - n1 = norm[idx0]; - n1.mul(1.f-a-b); - - n2 = norm[idx1]; - n2.mul(a); - - n3 = norm[idx2]; - n3.mul(b); - - n1.add(n2); - n1.add(n3); - - *mNormal = n1; - } - - if (mTangent != NULL) - { - LLVector4a* tangents = mFace->mTangents; - - LLVector4a t1,t2,t3; - t1 = tangents[idx0]; - t1.mul(1.f-a-b); - - t2 = tangents[idx1]; - t2.mul(a); - - t3 = tangents[idx2]; - t3.mul(b); - - t1.add(t2); - t1.add(t3); - - *mTangent = t1; - } - } - } - } + if (mIntersection != NULL) + { + LLVector4a intersect = mDir; + intersect.mul(*mClosestT); + intersect.add(mStart); + *mIntersection = intersect; + } + + U32 idx0 = tri->mIndex[0]; + U32 idx1 = tri->mIndex[1]; + U32 idx2 = tri->mIndex[2]; + + if (mTexCoord != NULL) + { + LLVector2* tc = (LLVector2*) mFace->mTexCoords; + *mTexCoord = ((1.f - a - b) * tc[idx0] + + a * tc[idx1] + + b * tc[idx2]); + + } + + if (mNormal != NULL) + { + LLVector4a* norm = mFace->mNormals; + + LLVector4a n1,n2,n3; + n1 = norm[idx0]; + n1.mul(1.f-a-b); + + n2 = norm[idx1]; + n2.mul(a); + + n3 = norm[idx2]; + n3.mul(b); + + n1.add(n2); + n1.add(n3); + + *mNormal = n1; + } + + if (mTangent != NULL) + { + LLVector4a* tangents = mFace->mTangents; + + LLVector4a t1,t2,t3; + t1 = tangents[idx0]; + t1.mul(1.f-a-b); + + t2 = tangents[idx1]; + t2.mul(a); + + t3 = tangents[idx2]; + t3.mul(b); + + t1.add(t2); + t1.add(t3); + + *mTangent = t1; + } + } + } + } } const LLVector4a& LLVolumeTriangle::getPositionGroup() const { - return mPositionGroup; + return mPositionGroup; } const F32& LLVolumeTriangle::getBinRadius() const { - return mRadius; + return mRadius; } @@ -219,55 +219,55 @@ const F32& LLVolumeTriangle::getBinRadius() const void LLVolumeOctreeValidate::visit(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* branch) { - LLVolumeOctreeListener* node = (LLVolumeOctreeListener*) branch->getListener(0); + LLVolumeOctreeListener* node = (LLVolumeOctreeListener*) branch->getListener(0); - //make sure bounds matches extents - LLVector4a& min = node->mExtents[0]; - LLVector4a& max = node->mExtents[1]; + //make sure bounds matches extents + LLVector4a& min = node->mExtents[0]; + LLVector4a& max = node->mExtents[1]; - LLVector4a& center = node->mBounds[0]; - LLVector4a& size = node->mBounds[1]; + LLVector4a& center = node->mBounds[0]; + LLVector4a& size = node->mBounds[1]; - LLVector4a test_min, test_max; - test_min.setSub(center, size); - test_max.setAdd(center, size); + LLVector4a test_min, test_max; + test_min.setSub(center, size); + test_max.setAdd(center, size); - if (!test_min.equals3(min, 0.001f) || - !test_max.equals3(max, 0.001f)) - { - LL_ERRS() << "Bad bounding box data found." << LL_ENDL; - } + if (!test_min.equals3(min, 0.001f) || + !test_max.equals3(max, 0.001f)) + { + LL_ERRS() << "Bad bounding box data found." << LL_ENDL; + } - test_min.sub(LLVector4a(0.001f)); - test_max.add(LLVector4a(0.001f)); + test_min.sub(LLVector4a(0.001f)); + test_max.add(LLVector4a(0.001f)); - for (U32 i = 0; i < branch->getChildCount(); ++i) - { - LLVolumeOctreeListener* child = (LLVolumeOctreeListener*) branch->getChild(i)->getListener(0); + for (U32 i = 0; i < branch->getChildCount(); ++i) + { + LLVolumeOctreeListener* child = (LLVolumeOctreeListener*) branch->getChild(i)->getListener(0); - //make sure all children fit inside this node - if (child->mExtents[0].lessThan(test_min).areAnySet(LLVector4Logical::MASK_XYZ) || - child->mExtents[1].greaterThan(test_max).areAnySet(LLVector4Logical::MASK_XYZ)) - { - LL_ERRS() << "Child protrudes from bounding box." << LL_ENDL; - } - } + //make sure all children fit inside this node + if (child->mExtents[0].lessThan(test_min).areAnySet(LLVector4Logical::MASK_XYZ) || + child->mExtents[1].greaterThan(test_max).areAnySet(LLVector4Logical::MASK_XYZ)) + { + LL_ERRS() << "Child protrudes from bounding box." << LL_ENDL; + } + } - //children fit, check data + //children fit, check data for (typename LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>::const_element_iter iter = branch->getDataBegin(); - iter != branch->getDataEnd(); ++iter) - { - const LLVolumeTriangle* tri = *iter; - - //validate triangle - for (U32 i = 0; i < 3; i++) - { - if (tri->mV[i]->greaterThan(test_max).areAnySet(LLVector4Logical::MASK_XYZ) || - tri->mV[i]->lessThan(test_min).areAnySet(LLVector4Logical::MASK_XYZ)) - { - LL_ERRS() << "Triangle protrudes from node." << LL_ENDL; - } - } - } + iter != branch->getDataEnd(); ++iter) + { + const LLVolumeTriangle* tri = *iter; + + //validate triangle + for (U32 i = 0; i < 3; i++) + { + if (tri->mV[i]->greaterThan(test_max).areAnySet(LLVector4Logical::MASK_XYZ) || + tri->mV[i]->lessThan(test_min).areAnySet(LLVector4Logical::MASK_XYZ)) + { + LL_ERRS() << "Triangle protrudes from node." << LL_ENDL; + } + } + } } |