16bit Fixture dimming problems
  • bennybosco
    junior Member
    Posts: 1
    Joined: Wed Aug 16, 2017 8:22 am

    16bit Fixture dimming problems

    by bennybosco » Wed Aug 16, 2017 3:28 pm

    Hi

    I am having trouble with the 16bit light fixture profile. I am getting non-linear fades at lower levels. I have tried different sources and drives and the problem seems to stem from Madmapper.

    https://www.dropbox.com/s/ny2d722sys70hik/IMG_3382.m4v?dl=0

    here is a vid showing the dmx output window from madmapper and the data coming into my led drivers. If you watch the values on the driver you can see them jumping up and down. This is on a slow linear fade of a white png from a syphon source (qlab).

    I have tried the same setup using VDMX as a source and have had the same results.

    I can also output 16bit dmx data from VDMX into my Artnet device and the curve is fine.

    System is:
    Macbook pro Retina into DMX KING edmx4 DIN artnet device.
    QLAB 4 --- syphon --- Madmapper.

    Is this an artefact of using video to control DMX led? Or an error with Madmappers artnet output? Ofcourse the gig I need this for is next week, pretty keen to get it sorted.


    Cheers
    Attachments
    nightdance MM.mad.zip
    madmapper showfile
    (14.24 KiB) Downloaded 37 times

Who is online

Users browsing this forum: No registered users and 4 guests