+ // figure out scale of model from root bone, for compatibility with old zmodel versions
+ tempvec[0] = BigFloat(poses[0]);
+ tempvec[1] = BigFloat(poses[1]);
+ tempvec[2] = BigFloat(poses[2]);
+ modelscale = VectorLength(tempvec);
+ biggestorigin = 0;
+ for (i = 0;i < loadmodel->num_bones * numposes * 12;i++)
+ {
+ f = fabs(BigFloat(poses[i]));
+ biggestorigin = max(biggestorigin, f);
+ }
+ loadmodel->num_posescale = biggestorigin / 32767.0f;
+ loadmodel->num_poseinvscale = 1.0f / loadmodel->num_posescale;
+ for (i = 0;i < numposes;i++)
+ {
+ const float *frameposes = (float *) (pheader->lump_poses.start + pbase) + 12*i*loadmodel->num_bones;
+ for (j = 0;j < loadmodel->num_bones;j++)
+ {
+ float pose[12];
+ matrix4x4_t posematrix;
+ for (k = 0;k < 12;k++)
+ pose[k] = BigFloat(frameposes[j*12+k]);
+ //if (j < loadmodel->num_bones)
+ // Con_Printf("%s: bone %i = %f %f %f %f : %f %f %f %f : %f %f %f %f : scale = %f\n", loadmodel->name, j, pose[0], pose[1], pose[2], pose[3], pose[4], pose[5], pose[6], pose[7], pose[8], pose[9], pose[10], pose[11], VectorLength(pose));
+ // scale child bones to match the root scale
+ if (loadmodel->data_bones[j].parent >= 0)
+ {
+ pose[3] *= modelscale;
+ pose[7] *= modelscale;
+ pose[11] *= modelscale;
+ }
+ // normalize rotation matrix
+ VectorNormalize(pose + 0);
+ VectorNormalize(pose + 4);
+ VectorNormalize(pose + 8);
+ Matrix4x4_FromArray12FloatD3D(&posematrix, pose);
+ Matrix4x4_ToBonePose6s(&posematrix, loadmodel->num_poseinvscale, loadmodel->data_poses6s + 6*(i*loadmodel->num_bones+j));
+ }
+ }