diff options
Diffstat (limited to 'indra/llprimitive/llmodel.cpp')
| -rw-r--r-- | indra/llprimitive/llmodel.cpp | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp index 0bc7846023..9ecc2c2a7d 100644 --- a/indra/llprimitive/llmodel.cpp +++ b/indra/llprimitive/llmodel.cpp @@ -1717,11 +1717,21 @@ 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]; } } } @@ -1734,15 +1744,25 @@ 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]; } } } |