diff options
Diffstat (limited to 'indra/llprimitive/llmodel.cpp')
| -rw-r--r-- | indra/llprimitive/llmodel.cpp | 194 |
1 files changed, 187 insertions, 7 deletions
diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp index 6b4bb3a8b0..4c0f3edb62 100644 --- a/indra/llprimitive/llmodel.cpp +++ b/indra/llprimitive/llmodel.cpp @@ -334,6 +334,162 @@ void LLModel::normalizeVolumeFaces() } } +void LLModel::normalizeVolumeFacesAndWeights() +{ + if (!mVolumeFaces.empty()) + { + LLVector4a min, max; + + // For all of the volume faces + // in the model, loop over + // them and see what the extents + // of the volume along each axis. + min = mVolumeFaces[0].mExtents[0]; + max = mVolumeFaces[0].mExtents[1]; + + for (U32 i = 1; i < mVolumeFaces.size(); ++i) + { + LLVolumeFace& face = mVolumeFaces[i]; + + update_min_max(min, max, face.mExtents[0]); + update_min_max(min, max, face.mExtents[1]); + + if (face.mTexCoords) + { + LLVector2& min_tc = face.mTexCoordExtents[0]; + LLVector2& max_tc = face.mTexCoordExtents[1]; + + min_tc = face.mTexCoords[0]; + max_tc = face.mTexCoords[0]; + + for (S32 j = 1; j < face.mNumVertices; ++j) + { + update_min_max(min_tc, max_tc, face.mTexCoords[j]); + } + } + else + { + face.mTexCoordExtents[0].set(0, 0); + face.mTexCoordExtents[1].set(1, 1); + } + } + + // Now that we have the extents of the model + // we can compute the offset needed to center + // the model at the origin. + + // Compute center of the model + // and make it negative to get translation + // needed to center at origin. + LLVector4a trans; + trans.setAdd(min, max); + trans.mul(-0.5f); + + // Compute the total size along all + // axes of the model. + LLVector4a size; + size.setSub(max, min); + + // Prevent division by zero. + F32 x = size[0]; + F32 y = size[1]; + F32 z = size[2]; + F32 w = size[3]; + if (fabs(x) < F_APPROXIMATELY_ZERO) + { + x = 1.0; + } + if (fabs(y) < F_APPROXIMATELY_ZERO) + { + y = 1.0; + } + if (fabs(z) < F_APPROXIMATELY_ZERO) + { + z = 1.0; + } + size.set(x, y, z, w); + + // Compute scale as reciprocal of size + LLVector4a scale; + scale.splat(1.f); + scale.div(size); + + LLVector4a inv_scale(1.f); + inv_scale.div(scale); + + for (U32 i = 0; i < mVolumeFaces.size(); ++i) + { + LLVolumeFace& face = mVolumeFaces[i]; + + // We shrink the extents so + // that they fall within + // the unit cube. + // VFExtents change + face.mExtents[0].add(trans); + face.mExtents[0].mul(scale); + + face.mExtents[1].add(trans); + face.mExtents[1].mul(scale); + + // For all the positions, we scale + // the positions to fit within the unit cube. + LLVector4a* pos = (LLVector4a*)face.mPositions; + LLVector4a* norm = (LLVector4a*)face.mNormals; + LLVector4a* t = (LLVector4a*)face.mTangents; + + for (S32 j = 0; j < face.mNumVertices; ++j) + { + pos[j].add(trans); + pos[j].mul(scale); + if (norm && !norm[j].equals3(LLVector4a::getZero())) + { + norm[j].mul(inv_scale); + norm[j].normalize3(); + } + + if (t) + { + F32 w = t[j].getF32ptr()[3]; + t[j].mul(inv_scale); + t[j].normalize3(); + t[j].getF32ptr()[3] = w; + } + } + } + + weight_map old_weights = mSkinWeights; + mSkinWeights.clear(); + mPosition.clear(); + + for (auto& weights : old_weights) + { + LLVector4a pos(weights.first.mV[VX], weights.first.mV[VY], weights.first.mV[VZ]); + pos.add(trans); + pos.mul(scale); + LLVector3 scaled_pos(pos.getF32ptr()); + mPosition.push_back(scaled_pos); + mSkinWeights[scaled_pos] = weights.second; + } + + // mNormalizedScale is the scale at which + // we would need to multiply the model + // by to get the original size of the + // model instead of the normalized size. + LLVector4a normalized_scale; + normalized_scale.splat(1.f); + normalized_scale.div(scale); + mNormalizedScale.set(normalized_scale.getF32ptr()); + mNormalizedTranslation.set(trans.getF32ptr()); + mNormalizedTranslation *= -1.f; + + // remember normalized scale so original dimensions can be recovered for mesh processing (i.e. tangent generation) + for (auto& face : mVolumeFaces) + { + face.mNormalizedScale = mNormalizedScale; + } + } +} + void LLModel::getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out) const { scale_out = mNormalizedScale; @@ -662,7 +818,7 @@ LLSD LLModel::writeModel( bool upload_skin, bool upload_joints, bool lock_scale_if_joint_position, - bool nowrite, + EWriteModelMode write_mode, bool as_slm, int submodel_id) { @@ -941,10 +1097,10 @@ LLSD LLModel::writeModel( } } - return writeModelToStream(ostr, mdl, nowrite, as_slm); + return writeModelToStream(ostr, mdl, write_mode, as_slm); } -LLSD LLModel::writeModelToStream(std::ostream& ostr, LLSD& mdl, bool nowrite, bool as_slm) +LLSD LLModel::writeModelToStream(std::ostream& ostr, LLSD& mdl, EWriteModelMode write_mode, bool as_slm) { std::string::size_type cur_offset = 0; @@ -1006,7 +1162,11 @@ LLSD LLModel::writeModelToStream(std::ostream& ostr, LLSD& mdl, bool nowrite, bo } } - if (!nowrite) + if (write_mode == WRITE_HUMAN) + { + ostr << mdl; + } + else if (write_mode == WRITE_BINARY) { LLSDSerialize::toBinary(header, ostr); @@ -1561,11 +1721,21 @@ LLSD LLMeshSkinInfo::asLLSD(bool include_joints, bool lock_scale_if_joint_positi { ret["joint_names"][i] = mJointNames[i]; + // For model to work at all there must be a matching bind matrix, + // so supply an indentity one if it isn't true + // Note: can build an actual bind matrix from joints + const LLMatrix4a& inv_bind = mInvBindMatrix.size() > i ? mInvBindMatrix[i] : LLMatrix4a::identity(); + if (i >= mInvBindMatrix.size()) + { + LL_WARNS("MESHSKININFO") << "Joint index " << i << " (" << mJointNames[i] << ") exceeds inverse bind matrix size " + << mInvBindMatrix.size() << LL_ENDL; + } + for (U32 j = 0; j < 4; j++) { for (U32 k = 0; k < 4; k++) { - ret["inverse_bind_matrix"][i][j*4+k] = mInvBindMatrix[i].mMatrix[j][k]; + ret["inverse_bind_matrix"][i][j * 4 + k] = inv_bind.mMatrix[j][k]; } } } @@ -1578,15 +1748,25 @@ LLSD LLMeshSkinInfo::asLLSD(bool include_joints, bool lock_scale_if_joint_positi } } - if ( include_joints && mAlternateBindMatrix.size() > 0 ) + // optional 'joint overrides' + if (include_joints && mAlternateBindMatrix.size() > 0) { for (U32 i = 0; i < mJointNames.size(); ++i) { + // If there is not enough to match mJointNames, + // either supply no alternate matrixes at all or supply + // replacements + const LLMatrix4a& alt_bind = mAlternateBindMatrix.size() > i ? mAlternateBindMatrix[i] : LLMatrix4a::identity(); + if (i >= mAlternateBindMatrix.size()) + { + LL_WARNS("MESHSKININFO") << "Joint index " << i << " (" << mJointNames[i] << ") exceeds alternate bind matrix size " + << mAlternateBindMatrix.size() << LL_ENDL; + } for (U32 j = 0; j < 4; j++) { for (U32 k = 0; k < 4; k++) { - ret["alt_inverse_bind_matrix"][i][j*4+k] = mAlternateBindMatrix[i].mMatrix[j][k]; + ret["alt_inverse_bind_matrix"][i][j * 4 + k] = alt_bind.mMatrix[j][k]; } } } |