Function CDrawBodyImpl

Source/Objects/movementobject.cpp:2985–3024

}

static void CDrawBodyImpl(
    RiggedObject& rigged_object,
    Skeleton& skeleton,
    CScriptArrayWrapper<BoneTransform>& inv_skeleton_bind_transforms,
    CScriptArrayWrapper<int>& ik_chain_start_index,
    CScriptArrayWrapper<int>& ik_chain_elements,
    CScriptArrayWrapper<int>& ik_chain_length,
    const BoneTransform& hip_transform, const BoneTransform& chest_transform) {
    int start = ik_chain_start_index[kTorsoIK];

    BoneTransform old_hip_matrix = rigged_object.animation_frame_bone_matrices[ik_chain_elements[start + 2]];

    int chest_bone = ik_chain_elements[start + 0];
    int abdomen_bone = ik_chain_elements[start + 1];
    int hip_bone = ik_chain_elements[start + 2];

    vec3 collarbone = chest_transform * skeleton.points[skeleton.bones[chest_bone].points[1]];
    vec3 ribs = chest_transform * skeleton.points[skeleton.bones[chest_bone].points[0]];
    vec3 stomach = hip_transform * skeleton.points[skeleton.bones[abdomen_bone].points[0]];
    vec3 hips = hip_transform * skeleton.points[skeleton.bones[hip_bone].points[0]];

    rigged_object.animation_frame_bone_matrices[chest_bone] = chest_transform * inv_skeleton_bind_transforms[chest_bone];
    BoneTransform temp = mix(chest_transform, hip_transform, 0.5f);
    temp.rotation = mix(hip_transform.rotation, chest_transform.rotation, 0.5f);
    rigged_object.animation_frame_bone_matrices[abdomen_bone] = temp * inv_skeleton_bind_transforms[abdomen_bone];

    RotateBoneToMatchVec(&rigged_object, ribs, collarbone, chest_bone);
    RotateBoneToMatchVec(&rigged_object, stomach, ribs, abdomen_bone);
    RotateBoneToMatchVec(&rigged_object, hips, stomach, hip_bone);

    BoneTransform hip_rel = rigged_object.animation_frame_bone_matrices[hip_bone] * invert(old_hip_matrix);

    start = ik_chain_start_index[kTailIK];
    int len = ik_chain_length[kTailIK];

    for (int i = 0; i < len; ++i) {
        int bone = ik_chain_elements[start + i];
        rigged_object.animation_frame_bone_matrices[bone] = hip_rel * rigged_object.animation_frame_bone_matrices[bone];
    }
}

static void CDrawBody(MovementObject* mo, const BoneTransform& hip_transform, const BoneTransform& chest_transform) {
    PROFILER_ZONE(g_profiler_ctx, "C++ Draw Body")