+
+ // cache skeletal animation data first (primarily for gpu-skinning)
+ if (!ent->animcache_skeletaltransform3x4 && model->num_bones > 0)
+ {
+ int i;
+ int blends;
+ const skeleton_t *skeleton = ent->skeleton;
+ const frameblend_t *frameblend = ent->frameblend;
+ float *boneposerelative;
+ float m[12];
+ static float bonepose[256][12];
+ ent->animcache_skeletaltransform3x4 = R_FrameData_Alloc(sizeof(float[3][4]) * model->num_bones);
+ boneposerelative = ent->animcache_skeletaltransform3x4;
+ if (skeleton && !skeleton->relativetransforms)
+ skeleton = NULL;
+ // resolve hierarchy and make relative transforms (deforms) which the shader wants
+ if (skeleton)
+ {
+ for (i = 0;i < model->num_bones;i++)
+ {
+ Matrix4x4_ToArray12FloatD3D(&skeleton->relativetransforms[i], m);
+ if (model->data_bones[i].parent >= 0)
+ R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
+ else
+ memcpy(bonepose[i], m, sizeof(m));
+
+ // create a relative deformation matrix to describe displacement
+ // from the base mesh, which is used by the actual weighting
+ R_ConcatTransforms(bonepose[i], model->data_baseboneposeinverse + i * 12, boneposerelative + i * 12);
+ }
+ }
+ else
+ {
+ for (i = 0;i < model->num_bones;i++)
+ {
+ const short * RESTRICT pose7s = model->data_poses7s + 7 * (frameblend[0].subframe * model->num_bones + i);
+ float lerp = frameblend[0].lerp,
+ tx = pose7s[0], ty = pose7s[1], tz = pose7s[2],
+ rx = pose7s[3] * lerp,
+ ry = pose7s[4] * lerp,
+ rz = pose7s[5] * lerp,
+ rw = pose7s[6] * lerp,
+ dx = tx*rw + ty*rz - tz*ry,
+ dy = -tx*rz + ty*rw + tz*rx,
+ dz = tx*ry - ty*rx + tz*rw,
+ dw = -tx*rx - ty*ry - tz*rz,
+ scale, sx, sy, sz, sw;
+ for (blends = 1;blends < MAX_FRAMEBLENDS && frameblend[blends].lerp > 0;blends++)
+ {
+ const short * RESTRICT pose7s = model->data_poses7s + 7 * (frameblend[blends].subframe * model->num_bones + i);
+ float lerp = frameblend[blends].lerp,
+ tx = pose7s[0], ty = pose7s[1], tz = pose7s[2],
+ qx = pose7s[3], qy = pose7s[4], qz = pose7s[5], qw = pose7s[6];
+ if(rx*qx + ry*qy + rz*qz + rw*qw < 0) lerp = -lerp;
+ qx *= lerp;
+ qy *= lerp;
+ qz *= lerp;
+ qw *= lerp;
+ rx += qx;
+ ry += qy;
+ rz += qz;
+ rw += qw;
+ dx += tx*qw + ty*qz - tz*qy;
+ dy += -tx*qz + ty*qw + tz*qx;
+ dz += tx*qy - ty*qx + tz*qw;
+ dw += -tx*qx - ty*qy - tz*qz;
+ }
+ scale = 1.0f / (rx*rx + ry*ry + rz*rz + rw*rw);
+ sx = rx * scale;
+ sy = ry * scale;
+ sz = rz * scale;
+ sw = rw * scale;
+ m[0] = sw*rw + sx*rx - sy*ry - sz*rz;
+ m[1] = 2*(sx*ry - sw*rz);
+ m[2] = 2*(sx*rz + sw*ry);
+ m[3] = model->num_posescale*(dx*sw - dy*sz + dz*sy - dw*sx);
+ m[4] = 2*(sx*ry + sw*rz);
+ m[5] = sw*rw + sy*ry - sx*rx - sz*rz;
+ m[6] = 2*(sy*rz - sw*rx);
+ m[7] = model->num_posescale*(dx*sz + dy*sw - dz*sx - dw*sy);
+ m[8] = 2*(sx*rz - sw*ry);
+ m[9] = 2*(sy*rz + sw*rx);
+ m[10] = sw*rw + sz*rz - sx*rx - sy*ry;
+ m[11] = model->num_posescale*(dy*sx + dz*sw - dx*sy - dw*sz);
+ if (i == r_skeletal_debugbone.integer)
+ m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
+ m[3] *= r_skeletal_debugtranslatex.value;
+ m[7] *= r_skeletal_debugtranslatey.value;
+ m[11] *= r_skeletal_debugtranslatez.value;
+ if (model->data_bones[i].parent >= 0)
+ R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
+ else
+ memcpy(bonepose[i], m, sizeof(m));
+ // create a relative deformation matrix to describe displacement
+ // from the base mesh, which is used by the actual weighting
+ R_ConcatTransforms(bonepose[i], model->data_baseboneposeinverse + i * 12, boneposerelative + i * 12);
+ }
+ }
+ }
+
projects / xonotic / darkplaces.git / commitdiff