Martin LIGHTING DIRECTOR User Manual download pdf (Page 34)

Side note: If the chosen fixture is a moving light then the light definition box will show a section

labelled “Follow-spot data”, as shown in the previous figure; otherwise, this section will not

appear.

At any point you may click on the “light model” option to go to the fixture library and

choose a different light model. Click on the “addressing mode” button to choose a

number from 1 to 4, related to the “personality” that you want to invoke for the light

(see Appendix D for a reference of the addressing modes in supported lights). Now

click on the “Base channel” button to enter the number of the first DMX channel that

you want the light to use (see the next section to understand base channels).

If the light that you are defining will not be used as an automated follow spot then you

are finished with it. Press OK to accept your values and return to the “Lighting Set-up”

screen. You may then define additional lights or return to the main screen.

Choosing Base Channels

Different lights have different number of required DMX channels. For example, if you

choose a PAL 1200 light with addressing mode = 1, you will use 21 DMX channels;

therefore, if you enter base channel=100, this light will “occupy” up to and including

channel 120. It is not generally advisable to share DMX channels between lights.

Every time you finish defining a fixture the MLD checks to see if there are any base

channel conflicts and alerts you to them. To help you resolve the conflicts you may click

on the DMX map button on the lighting set-up screen. The DMX map presents the 512

DMX channels in a graphic bar to which you may point to highlight each fixture.

If you click in any of the “lights available” boxes, information on the fixture you selected

will appear: model, base channel, last channel, channel range, addressing mode, and

pan/tilt partitioning.

Figure 18 - DMX Map screen may help the user avoid

channel assignment conflicts

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Martin LIGHTING DIRECTOR User Manual Page 34