11.7 Working with Tracking

Hog 4OS uses tracking, which gives it some very powerful abilities. Tracking can also add extra complexity, but Hog 4OS has several functions that make working with tracking straightforward. For a detailed discussion about tracking, see Tracking.

11.7.1 Tracking Values Backwards When Recording

You can use the Track Backwards feature when you record a cue to assign the parameter values to the last cue they appeared in, rather than the cue being recorded. For example, suppose that you have a series of cues with intensity values for three fixtures:

Fixture:

1

2

3

Cue 1

50

50

50

Cue 2

60

60

Cue 3

70

If you assign all three fixtures to 100% and record with merge into Cue 3 (see Insert, Merge and Replace for recording with merging), you would get these values:

Fixture:

1

2

3

Cue 1

50

50

50

Cue 2

60

60

Cue 3

100

100

100

However, if you did the same thing with Track Backwards, you would get:

Fixture:

1

2

3

Cue 1

50

50

100

Cue 2

60

100

Cue 3

100

The value of 100% has been applied to the last cue that the intensity parameter had a value in.

If you Track Backwards a parameter that hasn't been given a value since the start of the cuelist, the value is added to the first cue in the cuelist.

To record a cue with Track Backwards, select the Backwards button on the Record Options Toolbar that appears after you press the Record key:

  1. Fixture 1 Thru 3 @ 100 Enter.

  2. Record Cue 3

  3. Select Track Backwards on the Record Options Toolbar.

  4. Enter

[Tip]Tip

You can also Track Backwards when you update cues using Auto Update; see Auto Update.

11.7.2 Stopping Values from Tracking Forward

When you insert a new cue into a cuelist, or merge changes into an existing cue, the new values track forwards into later cues in the cuelist. For example, your cuelist has Cues 1 to 4, and Cue 1 has Fixture 1 programmed into it at 30%, so that it tracks through the subsequent cues:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

60

Cue 3

50

Cue 4

40

You now insert a Cue 2.5 with Fixture 1 at 100%. Because cues 3 and 4 do not change the intensity of Fixture 1, it will remain at 100% for the rest of the cuelist:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

60

Cue 2.5

100

Cue 3

50

Cue 4

40

You may want to record the new cue so that parameter values in the new cue return to their original value in the next cue (so that the inserted cue does not change the original looks due to tracking):

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

60

Cue 2.5

100

Cue 3

30

50

Cue 4

40

Hog 4OS allows you to record a cue between other cues without destroying existing tracking values. To do this, record the inserted cue without tracking forwards by deselecting the Forward button on the Record Options Toolbar that appears after pressing the Record key. For example:

  1. Press the Record key.

  2. Deselect Forward on the Record Options Toolbar.

  3. Cue 2.5 Enter : insert Cue 2.5 into the cuelist on the currently chosen master.

This is sometimes refered to as recording ‘cue only’ as the changes only affect the recorded cue and do not track into subsequent cues. Note that you can only turn tracking forwards off when you insert a new cue into a cuelist or when you merge values into a cue, not when adding new cues to the end of a cuelist.

[Important]Important

When recording or merging as ‘cue only’ any parameter values that did not previously exist in a cuelist, an ‘Off’ indication will be placed into the subsequent cue for these parameters. This Off indication will release the parameter value back to its previous state (as if it were not programmed in the list).

11.7.3 Deleting without Tracking Forward

When you delete a cue, this can have unexpected consequences on later cues in the cuelist if the deleted cue contained parameter values that tracked through to contribute to the state of the later cues. For example, you have the following cues:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

80

60

Cue 3

50

Cue 4

40

If you now delete Cue 2, Fixture 1 will track from Cue 1 through Cues 3 and 4 at 30%, rather than going to the expected 100% in Cues 3 and 4:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 3

50

Cue 4

40

You can prevent this happening by deleting the cue ‘cue only’ which adds any values that previously tracked through from the deleted cue into the next cue:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 3

100

80

50

Cue 4

40

To delete a cue without tracking the changes forwards:

  1. List 1 Cue 3 : select the cue to be deleted.

  2. Press and hold the Delete key. The Record Options Toolbar will appear.

  3. Deselect Forward from the Record Options Toolbar.

  4. Release the Delete key.

11.7.4 Blocking Cues

Blocking cues prevent changes made earlier in the cuelist from tracking through to subsequent cues in the cuelist.

Using State

You can create blocking cues using the State button on the Record Options Toolbar. For example, suppose that you have the following cues:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

60

Cue 3

50

Cue 4

40

to turn Cue 4 into a blocking cue, you copy it to itself ‘with state’:

  1. Cue 4 Copy State Cue 4 Enter : the State button is on the Record Options Toolbar that appears when you press Copy.

  2. Select Replace.

The values are now:

Fixture:

1

2

3

Cue 1

30

50

100

Cue 2

100

60

Cue 3

50

Cue 4

30

40

50

Because of tracking, when you copy a cue to another location you only copy the hard values, so you do not create a new cue that actually represents the on-stage look that you would get by running the original cue.

To copy both hard and tracked values, you can use Copy and State:

  • List 1 Cue 5 Copy State List 2 Cue 1 Enter : creates a new cue in Cuelist 2 that is the state of Cue 5 in Cuelist 1.

11.7.5 Unblocking

Unblocking removes redundant hard parameter values. A parameter value is redundant in a cue if it is the same as the value for that parameter in the previous cue in the same cuelist. For example:

Channel:

1

2

3

4

Cue 1

100

0

50

50

Cue 2

50

100

Cue 3

50

100

100

50

In this cuelist, the values for channels 1, 3 and 4 are redundant in cue 3. After unblocking, the values in the cuelist would be:

Channel:

1

2

3

4

Cue 1

100

0

50

50

Cue 2

50

100

Cue 3

100

To unblock cues, use the Unblock button in the Main Toolbar:

  • Cue3Unblock, Enter : unblock cue 3 on the currently chosen master.

  • List1Cue3Unblock, Enter : unblock cue 3 of cuelist 1.

  • Cue 1 Thru 10 Colour Unblock, Enter : unblock only colour parameters in cues 1 through 10 of the cuelist on the currently chosen master.

  • List 1 Cue 3 Group 10 Colour Unblock, Enter : unblock only the colour parameters of fixtures in Group 3, in cue 3 of cuelist 1.

To unblock complete cuelists:

  • List 1 Unblock, Enter

Or on a master:

  • Unblock Choose

[Tip]Tip

Unblocking obeys the linked parameter preferences assigned in SetupPreferencesProgramming. For example, if position parameters are not separated and Pan is blocking but Tilt is not, Pan will not be unblocked. For more on linked functions, see Separating Parameters

[Important]Important

Unblocking will remove parameter values from blocking cues, so any future changes to subsequent cues will be tracked through the whole cuelist.