diff options
Diffstat (limited to 'indra')
| -rw-r--r-- | indra/llappearance/llpolymorph.cpp | 26 | ||||
| -rwxr-xr-x | indra/llmath/llvector4a.h | 5 | ||||
| -rwxr-xr-x | indra/llmath/llvector4a.inl | 22 | ||||
| -rwxr-xr-x | indra/llmath/llvolume.cpp | 116 | ||||
| -rwxr-xr-x | indra/newview/llface.cpp | 31 | ||||
| -rwxr-xr-x | indra/newview/llspatialpartition.cpp | 5 | ||||
| -rwxr-xr-x | indra/newview/llvopartgroup.cpp | 10 | ||||
| -rwxr-xr-x | indra/newview/llvovolume.cpp | 5 | ||||
| -rwxr-xr-x | indra/newview/pipeline.cpp | 2 |
9 files changed, 139 insertions, 83 deletions
diff --git a/indra/llappearance/llpolymorph.cpp b/indra/llappearance/llpolymorph.cpp index 8a17819083..5e5813b9ac 100644 --- a/indra/llappearance/llpolymorph.cpp +++ b/indra/llappearance/llpolymorph.cpp @@ -568,6 +568,12 @@ void LLPolyMorphTarget::apply( ESex avatar_sex ) F32 *maskWeightArray = (mVertMask) ? mVertMask->getMorphMaskWeights() : NULL; + LLVector4a default_norm; + LLVector4a default_binorm; + + default_norm.set(0,1,0,1); + default_binorm.set(1,0,0,1); + for(U32 vert_index_morph = 0; vert_index_morph < mMorphData->mNumIndices; vert_index_morph++) { S32 vert_index_mesh = mMorphData->mVertexIndices[vert_index_morph]; @@ -597,19 +603,31 @@ void LLPolyMorphTarget::apply( ESex avatar_sex ) norm.mul(delta_weight*maskWeight*NORMAL_SOFTEN_FACTOR); scaled_normals[vert_index_mesh].add(norm); norm = scaled_normals[vert_index_mesh]; - norm.normalize3fast(); + + // guard against degenerate input data before we create NaNs below! + // + norm.normalize3fast_checked(&default_norm); normals[vert_index_mesh] = norm; // calculate new binormals LLVector4a binorm = mMorphData->mBinormals[vert_index_morph]; + + // guard against degenerate input data before we create NaNs below! + // + if (!binorm.isFinite3() || (binorm.dot3(binorm).getF32() <= F_APPROXIMATELY_ZERO)) + { + binorm.set(1,0,0,1); + } + binorm.mul(delta_weight*maskWeight*NORMAL_SOFTEN_FACTOR); scaled_binormals[vert_index_mesh].add(binorm); LLVector4a tangent; tangent.setCross3(scaled_binormals[vert_index_mesh], norm); LLVector4a& normalized_binormal = binormals[vert_index_mesh]; - normalized_binormal.setCross3(norm, tangent); - normalized_binormal.normalize3fast(); - + + normalized_binormal.setCross3(norm, tangent); + normalized_binormal.normalize3fast_checked(&default_binorm); + tex_coords[vert_index_mesh] += mMorphData->mTexCoords[vert_index_morph] * delta_weight * maskWeight; } diff --git a/indra/llmath/llvector4a.h b/indra/llmath/llvector4a.h index 0526793d3a..94a61f2b1d 100755 --- a/indra/llmath/llvector4a.h +++ b/indra/llmath/llvector4a.h @@ -236,6 +236,11 @@ public: // Note that this does not consider zero length vectors! inline void normalize3fast(); + // Normalize this vector with respect to the x, y, and z components only. Accurate only to 10-12 bits of precision. W component is destroyed + // Same as above except substitutes default vector contents if the vector is non-finite or degenerate due to zero length. + // + inline void normalize3fast_checked(LLVector4a* default = NULL); + // Return true if this vector is normalized with respect to x,y,z up to tolerance inline LLBool32 isNormalized3( F32 tolerance = 1e-3 ) const; diff --git a/indra/llmath/llvector4a.inl b/indra/llmath/llvector4a.inl index 4589bac9fb..6860252a75 100755 --- a/indra/llmath/llvector4a.inl +++ b/indra/llmath/llvector4a.inl @@ -410,8 +410,26 @@ inline LLSimdScalar LLVector4a::normalize3withLength() // Note that this does not consider zero length vectors! inline void LLVector4a::normalize3fast() { - // find out about bad math before it takes two man-days to track down - llassert(isFinite3() && !equals3(getZero())); + LLVector4a lenSqrd; lenSqrd.setAllDot3( *this, *this ); + const LLQuad approxRsqrt = _mm_rsqrt_ps(lenSqrd.mQ); + mQ = _mm_mul_ps( mQ, approxRsqrt ); +} + +// Normalize this vector with respect to the x, y, and z components only. Accurate only to 10-12 bits of precision. W component is destroyed +// Note that this does not consider zero length vectors! +inline void LLVector4a::normalize3fast_checked(LLVector4a* default) +{ + // handle bogus inputs before NaNs are generated below + // + if (!isFinite3() || (dot3(*this).getF32() < F_APPROXIMATELY_ZERO)) + { + if (default) + *this = *default; + else + set(0,1,0,1); + + return; + } LLVector4a lenSqrd; lenSqrd.setAllDot3( *this, *this ); const LLQuad approxRsqrt = _mm_rsqrt_ps(lenSqrd.mQ); diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp index bc2572375a..15621c2625 100755 --- a/indra/llmath/llvolume.cpp +++ b/indra/llmath/llvolume.cpp @@ -4472,6 +4472,9 @@ void LLVolume::generateSilhouetteVertices(std::vector<LLVector3> &vertices, continue; //skip degenerate face } + LLVector4a default_norm; + default_norm.set(0,1,0,1); + //for each edge for (S32 k = 0; k < 3; k++) { S32 index = face.mEdge[j*3+k]; @@ -4493,14 +4496,14 @@ void LLVolume::generateSilhouetteVertices(std::vector<LLVector3> &vertices, norm_mat.rotate(n[v1], t); - t.normalize3fast(); + t.normalize3fast_checked(&default_norm); normals.push_back(LLVector3(t[0], t[1], t[2])); mat.affineTransform(v[v2], t); vertices.push_back(LLVector3(t[0], t[1], t[2])); norm_mat.rotate(n[v2], t); - t.normalize3fast(); + t.normalize3fast_checked(&default_norm); normals.push_back(LLVector3(t[0], t[1], t[2])); } } @@ -6096,6 +6099,9 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build) { VertexData corners[4]; VertexData baseVert; + LLVector4a default_norm; + default_norm.set(0,1,0,1); + for(S32 t = 0; t < 4; t++) { corners[t].getPosition().load3( mesh[offset + (grid_size*t)].mPos.mV); @@ -6108,8 +6114,8 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build) lhs.setSub(corners[1].getPosition(), corners[0].getPosition()); LLVector4a rhs; rhs.setSub(corners[2].getPosition(), corners[1].getPosition()); - baseVert.getNormal().setCross3(lhs, rhs); - baseVert.getNormal().normalize3fast(); + baseVert.getNormal().setCross3(lhs, rhs); + baseVert.getNormal().normalize3fast_checked(&default_norm); } if(!(mTypeMask & TOP_MASK)) @@ -6559,17 +6565,12 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build) d1.setSub(mPositions[mIndices[2]], mPositions[mIndices[0]]); LLVector4a normal; - normal.setCross3(d0,d1); - - if (normal.dot3(normal).getF32() > F_APPROXIMATELY_ZERO) - { - normal.normalize3fast(); - } - else - { //degenerate, make up a value - normal.set(0,0,1); - } + LLVector4a default_norm; + default_norm.set(0,1,0,1); + normal.setCross3(d0,d1); + normal.normalize3fast_checked(&default_norm); + llassert(llfinite(normal.getF32ptr()[0])); llassert(llfinite(normal.getF32ptr()[1])); llassert(llfinite(normal.getF32ptr()[2])); @@ -6611,11 +6612,13 @@ void LLVolumeFace::createTangents() CalculateTangentArray(mNumVertices, mPositions, mNormals, mTexCoords, mNumIndices/3, mIndices, mTangents); //normalize tangents + LLVector4a default_norm; + default_norm.set(0,1,0,1); for (U32 i = 0; i < mNumVertices; i++) { //binorm[i].normalize3fast(); //bump map/planar projection code requires normals to be normalized - mNormals[i].normalize3fast(); + mNormals[i].normalize3fast_checked(&default_norm); } } } @@ -6793,6 +6796,9 @@ void LLVolumeFace::appendFace(const LLVolumeFace& face, LLMatrix4& mat_in, LLMat mat.loadu(mat_in); norm_mat.loadu(norm_mat_in); + LLVector4a default_norm; + default_norm.set(0,1,0,1); + for (U32 i = 0; i < face.mNumVertices; ++i) { //transform appended face position and store @@ -6800,7 +6806,7 @@ void LLVolumeFace::appendFace(const LLVolumeFace& face, LLMatrix4& mat_in, LLMat //transform appended face normal and store norm_mat.rotate(src_norm[i], dst_norm[i]); - dst_norm[i].normalize3fast(); + dst_norm[i].normalize3fast_checked(&default_norm); //copy appended face texture coordinate dst_tc[i] = src_tc[i]; @@ -7209,7 +7215,7 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build) return TRUE; } -#define TANGENTIAL_PARANOIA_ASSERTS 1 +#define TANGENTIAL_PARANOIA_ASSERTS 0 #if TANGENTIAL_PARANOIA_ASSERTS #define tangential_paranoia(a) llassert(a) @@ -7289,47 +7295,28 @@ void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVe // These appear to come out of the summing above distinctly non-unit-length // + LLVector4a default_norm; + default_norm.set(0,1,0,1); + for (U32 a = 0; a < vertexCount; a++) { - // Conditioning required by assets which don't necessarily reference every vert index - // (i.e. some of the tangents can end up uninitialized and therefore indeterminate/INF) - // and protection against zero length vectors which are not handled by normalize3fast. - // - if (!tan1[a].isFinite3() || tan1[a].equals3(LLVector4a::getZero())) - { - tan1[a].set(0,0,1,1); - } - else - { - tan1[a].normalize3fast(); - } + tan1[a].normalize3fast_checked(&default_norm); + tan2[a].normalize3fast_checked(&default_norm); - if (!tan2[a].isFinite3() || tan2[a].equals3(LLVector4a::getZero())) - { - tan2[a].set(0,0,1,1); - } - else - { - tan2[a].normalize3fast(); - } - - const F32 cefgw = 0.03f; tangential_paranoia(tan1[a].isFinite3()); tangential_paranoia(tan2[a].isFinite3()); - tangential_paranoia(tan1[a].isNormalized3(cefgw)); - tangential_paranoia(tan2[a].isNormalized3(cefgw)); + tangential_paranoia(tan1[a].isNormalized3(0.03f)); + tangential_paranoia(tan2[a].isNormalized3(0.03f)); } + LLVector4a default_tangent; + default_tangent.set(0,0,1,1); + for (U32 a = 0; a < vertexCount; a++) { LLVector4a n = normal[a]; - - if (!n.isFinite3() || n.equals3(LLVector4a::getZero())) - { - n.set(0,1,0,1); - } - - n.normalize3fast(); + + n.normalize3fast_checked(&default_norm); const LLVector4a& t = tan1[a]; @@ -7353,34 +7340,27 @@ void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVe tangential_paranoia(tsubn.isFinite3()); - if (tsubn.dot3(tsubn).getF32() > F_APPROXIMATELY_ZERO) - { - tsubn.normalize3fast(); + tsubn.normalize3fast_checked(&default_tangent); - // Calculate handedness - F32 handedness = ncrosst.dot3(tan2[a]).getF32() < 0.f ? -1.f : 1.f; + // Calculate handedness + F32 handedness = ncrosst.dot3(tan2[a]).getF32() < 0.f ? -1.f : 1.f; - tsubn.getF32ptr()[3] = handedness; + tsubn.getF32ptr()[3] = handedness; - tangent[a] = tsubn; + tangent[a] = tsubn; - tangential_paranoia(tangent[a].isNormalized3(0.1f)); + tangential_paranoia(tangent[a].isNormalized3(0.1f)); - llassert(llfinite(tangent[a].getF32ptr()[0])); - llassert(llfinite(tangent[a].getF32ptr()[1])); - llassert(llfinite(tangent[a].getF32ptr()[2])); + llassert(llfinite(tangent[a].getF32ptr()[0])); + llassert(llfinite(tangent[a].getF32ptr()[1])); + llassert(llfinite(tangent[a].getF32ptr()[2])); - llassert(!llisnan(tangent[a].getF32ptr()[0])); - llassert(!llisnan(tangent[a].getF32ptr()[1])); - llassert(!llisnan(tangent[a].getF32ptr()[2])); - } - else - { //degenerate, make up a value - tangent[a].set(0,0,1,1); - } + llassert(!llisnan(tangent[a].getF32ptr()[0])); + llassert(!llisnan(tangent[a].getF32ptr()[1])); + llassert(!llisnan(tangent[a].getF32ptr()[2])); } - ll_aligned_free_16(tan1); + ll_aligned_free_16(tan1); } diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp index 3e503cb750..b34370fa87 100755 --- a/indra/newview/llface.cpp +++ b/indra/newview/llface.cpp @@ -817,6 +817,12 @@ BOOL LLFace::genVolumeBBoxes(const LLVolume &volume, S32 f, size.mul(scale); } + // Catch potential badness from normalization before it happens + // + llassert(mat_normal.mMatrix[0].isFinite3() && (mat_normal.mMatrix[0].dot3(mat_normal.mMatrix[0]).getF32() > F_APPROXIMATELY_ZERO)); + llassert(mat_normal.mMatrix[1].isFinite3() && (mat_normal.mMatrix[1].dot3(mat_normal.mMatrix[1]).getF32() > F_APPROXIMATELY_ZERO)); + llassert(mat_normal.mMatrix[2].isFinite3() && (mat_normal.mMatrix[2].dot3(mat_normal.mMatrix[2]).getF32() > F_APPROXIMATELY_ZERO)); + mat_normal.mMatrix[0].normalize3fast(); mat_normal.mMatrix[1].normalize3fast(); mat_normal.mMatrix[2].normalize3fast(); @@ -936,7 +942,9 @@ LLVector2 LLFace::surfaceToTexture(LLVector2 surface_coord, const LLVector4a& po LLVector4a volume_normal; LLVector3 v_normal(normal.getF32ptr()); volume_normal.load3(mDrawablep->getVOVolume()->agentDirectionToVolume(v_normal).mV); - volume_normal.normalize3fast(); + LLVector4a default_norm; + default_norm.set(0,1,0,1); + volume_normal.normalize3fast_checked(&default_norm); if (texgen == LLTextureEntry::TEX_GEN_PLANAR) { @@ -1909,7 +1917,10 @@ BOOL LLFace::getGeometryVolume(const LLVolume& volume, binormal.load3(t.mV); } - binormal.normalize3fast(); + LLVector4a default_binorm; + default_binorm.set(1,0,0,1); + binormal.normalize3fast_checked(&default_binorm); + LLVector2 tc = bump_tc[i]; tc += LLVector2( bump_s_primary_light_ray.dot3(tangent).getF32(), bump_t_primary_light_ray.dot3(binormal).getF32() ); @@ -1996,12 +2007,13 @@ BOOL LLFace::getGeometryVolume(const LLVolume& volume, LLFastTimer t(FTM_FACE_GEOM_NORMAL); mVertexBuffer->getNormalStrider(norm, mGeomIndex, mGeomCount, map_range); F32* normals = (F32*) norm.get(); - + LLVector4a default_norm; + default_norm.set(0,1,0,1); for (S32 i = 0; i < num_vertices; i++) { LLVector4a normal; mat_normal.rotate(vf.mNormals[i], normal); - normal.normalize3fast(); + normal.normalize3fast_checked(&default_norm); normal.store4a(normals); normals += 4; } @@ -2024,12 +2036,14 @@ BOOL LLFace::getGeometryVolume(const LLVolume& volume, mask.clear(); mask.setElement<3>(); + LLVector4a default_tangent; + default_tangent.set(0,0,1,1); + for (S32 i = 0; i < num_vertices; i++) { LLVector4a tangent_out; mat_normal.rotate(vf.mTangents[i], tangent_out); - tangent_out.normalize3fast(); - + tangent_out.normalize3fast_checked(&default_tangent); tangent_out.setSelectWithMask(mask, vf.mTangents[i], tangent_out); tangent_out.store4a(tangents); @@ -2244,7 +2258,10 @@ BOOL LLFace::calcPixelArea(F32& cos_angle_to_view_dir, F32& radius) dist *= 16.f; } - lookAt.normalize3fast() ; + LLVector4a default_lookat; + default_lookat.set(0,0,1,1); + + lookAt.normalize3fast_checked(&default_lookat); //get area of circle around node F32 app_angle = atanf((F32) sqrt(size_squared) / dist); diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp index 78401020a6..dc99fd469b 100755 --- a/indra/newview/llspatialpartition.cpp +++ b/indra/newview/llspatialpartition.cpp @@ -1259,12 +1259,15 @@ F32 LLSpatialPartition::calcDistance(LLSpatialGroup* group, LLCamera& camera) F32 dist = 0.f; + LLVector4a default_eyevec; + default_eyevec.set(0,0,1,1); + if (group->mDrawMap.find(LLRenderPass::PASS_ALPHA) != group->mDrawMap.end()) { LLVector4a v = eye; dist = eye.getLength3().getF32(); - eye.normalize3fast(); + eye.normalize3fast_checked(&default_eyevec); if (!group->isState(LLSpatialGroup::ALPHA_DIRTY)) { diff --git a/indra/newview/llvopartgroup.cpp b/indra/newview/llvopartgroup.cpp index 6a7f26bdb5..b25213d85f 100755 --- a/indra/newview/llvopartgroup.cpp +++ b/indra/newview/llvopartgroup.cpp @@ -411,14 +411,21 @@ void LLVOPartGroup::getGeometry(S32 idx, LLVector4a right; right.setCross3(at, up); + // guard against NaNs in normalize below + llassert(right.dot3(right).getF32() > F_APPROXIMATELY_ZERO); right.normalize3fast(); + up.setCross3(right, at); + // guard against NaNs in normalize below + llassert(up.dot3(up).getF32() > F_APPROXIMATELY_ZERO); up.normalize3fast(); if (part.mFlags & LLPartData::LL_PART_FOLLOW_VELOCITY_MASK) { LLVector4a normvel; normvel.load3(part.mVelocity.mV); + // guard against NaNs in normalize below + llassert(normvel.dot3(normvel).getF32() > F_APPROXIMATELY_ZERO); normvel.normalize3fast(); LLVector2 up_fracs; up_fracs.mV[0] = normvel.dot3(right).getF32(); @@ -443,6 +450,9 @@ void LLVOPartGroup::getGeometry(S32 idx, up = new_up; right = t; + // guard against NaNs in normalize below + llassert(up.dot3(up).getF32() > F_APPROXIMATELY_ZERO); + llassert(right.dot3(right).getF32() > F_APPROXIMATELY_ZERO); up.normalize3fast(); right.normalize3fast(); } diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp index 0aa56fcc0f..8962d7cadf 100755 --- a/indra/newview/llvovolume.cpp +++ b/indra/newview/llvovolume.cpp @@ -3751,7 +3751,8 @@ BOOL LLVOVolume::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& { *normal = n; } - + // guard against NaNs in normalize below + llassert(normal->dot3(*normal).getF32() > F_APPROXIMATELY_ZERO); (*normal).normalize3fast(); } @@ -3774,6 +3775,8 @@ BOOL LLVOVolume::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& { *tangent = tn; } + // guard against NaNs in normalize below + llassert(tangent->dot3(*tangent).getF32() > F_APPROXIMATELY_ZERO); (*tangent).normalize3fast(); } diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp index 05ef8060d4..72912db041 100755 --- a/indra/newview/pipeline.cpp +++ b/indra/newview/pipeline.cpp @@ -10569,11 +10569,13 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar) LLVector4a left; left.load3(camera.getLeftAxis().mV); left.mul(left); + llassert(left.dot3(left).getF32() > F_APPROXIMATELY_ZERO); left.normalize3fast(); LLVector4a up; up.load3(camera.getUpAxis().mV); up.mul(up); + llassert(up.dot3(up).getF32() > F_APPROXIMATELY_ZERO); up.normalize3fast(); tdim.mV[0] = fabsf(half_height.dot3(left).getF32()); |