Function CDisplayMatrixUpdateImpl

Source/Objects/movementobject.cpp:2012–2063

#define rigged_object_RotateBoneToMatchVec(A, B, C) (RotateBoneToMatchVec(&rigged_object, A, B, C))

static void CDisplayMatrixUpdateImpl(
    MovementObject* mo,
    float breath_amount,
    const CScriptArrayWrapper<int>& ik_chain_start_index,
    const CScriptArrayWrapper<int>& ik_chain_elements,
    const CScriptArrayWrapper<BoneTransform>& skeleton_bind_transforms,
    const CScriptArrayWrapper<BoneTransform>& inv_skeleton_bind_transforms) {
    MovementObject& this_mo = *mo;
    RiggedObject& rigged_object = *this_mo.rigged_object();

    float scale = rigged_object.GetCharScale();
    int chest_bone = ik_chain_elements[ik_chain_start_index[kTorsoIK]];
    BoneTransform world_chest = BoneTransform(rigged_object.display_bone_matrices[chest_bone]) * inv_skeleton_bind_transforms[chest_bone];
    vec3 breathe_dir = world_chest.rotation * normalize(vec3(0, 0, 1));
    vec3 breathe_front = world_chest.rotation * normalize(vec3(0, 1, 0));
    vec3 breathe_side = world_chest.rotation * normalize(vec3(1, 0, 0));

    for (int i = 0; i < 2; ++i) {
        int collar_bone = ik_chain_elements[ik_chain_start_index[kLeftArmIK + i] + 5];
        BoneTransform collar = BoneTransform(rigged_object.display_bone_matrices[collar_bone]) * inv_skeleton_bind_transforms[collar_bone];
        collar.origin += breathe_dir * breath_amount * 0.01f * scale;
        collar.origin += breathe_front * breath_amount * 0.01f * scale;
        collar = collar * skeleton_bind_transforms[collar_bone];
        rigged_object.display_bone_matrices[collar_bone] = collar.GetMat4();

        int shoulder_bone = ik_chain_elements[ik_chain_start_index[kLeftArmIK + i] + 4];
        BoneTransform shoulder = BoneTransform(rigged_object.display_bone_matrices[shoulder_bone]) * inv_skeleton_bind_transforms[shoulder_bone];
        shoulder.origin += breathe_dir * breath_amount * 0.002f * scale;
        shoulder = shoulder * skeleton_bind_transforms[shoulder_bone];
        rigged_object.display_bone_matrices[shoulder_bone] = shoulder.GetMat4();
    }

    world_chest.origin += breathe_dir * breath_amount * 0.01f * scale;
    world_chest.origin += breathe_front * breath_amount * 0.01f * scale;
    world_chest.rotation = quaternion(vec4(breathe_side.x(), breathe_side.y(), breathe_side.z(), breath_amount * 0.05f)) * world_chest.rotation;
    world_chest = world_chest * skeleton_bind_transforms[chest_bone];
    rigged_object.display_bone_matrices[chest_bone] = world_chest.GetMat4();

    int abdomen_bone = ik_chain_elements[ik_chain_start_index[kTorsoIK] + 1];
    BoneTransform abdomen = BoneTransform(rigged_object.display_bone_matrices[abdomen_bone]) * inv_skeleton_bind_transforms[abdomen_bone];
    abdomen.origin += breathe_dir * breath_amount * 0.008f * scale;
    abdomen.origin += breathe_front * breath_amount * 0.005f * scale;
    abdomen.rotation = quaternion(vec4(breathe_side.x(), breathe_side.y(), breathe_side.z(), breath_amount * -0.02f)) * abdomen.rotation;
    abdomen = abdomen * skeleton_bind_transforms[abdomen_bone];
    rigged_object.display_bone_matrices[abdomen_bone] = abdomen.GetMat4();

    int neck_bone = ik_chain_elements[ik_chain_start_index[kHeadIK] + 1];
    BoneTransform neck = BoneTransform(rigged_object.display_bone_matrices[neck_bone]) * inv_skeleton_bind_transforms[neck_bone];
    neck.origin += breathe_dir * breath_amount * 0.005f * scale;
    neck = neck * skeleton_bind_transforms[neck_bone];
    rigged_object.display_bone_matrices[neck_bone] = neck.GetMat4();
}

static void CDisplayMatrixUpdate(MovementObject* mo) {
    PROFILER_ZONE(g_profiler_ctx, "C++ Display Matrix Update")