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DLPLIGHTCRAFTER: Advanced using of the Lightcrafter Stored pattern sequence

Part Number: DLPLIGHTCRAFTER

Hello, I have two questions about the Lightcrafter, when it is used in "Stored pattern sequence" mode. I use 1 bit depth, 96 patterns, about 250us exposure time with external positive signal.

1) I can select "only green", or "only blue", or "only red". Is it possible to have all 3 leds (red, green, blue) active together during sequence playing?

2) It take about 30 seconds to upload 96 1 bit bitmaps (about 4.7Mb) to the internal high speed memory. Is there a way to speed up this part? It is not a problem if this require manually editing the GUI code (it is written in QT, right?). Ideally "streaming" data while playing the high speed 96 patterns. Maybe loading the patterns (15-20 "frames", where each one has 96 patterns) to the Ram and moving them in the fast memory to be played in chunks of 96 patterns?

Simply using the integrated Ram (manually settings 97 patterns for example) is not an option since the speed is too slow and I cannot play the patterns fast enough.

Many thanks.

Davide

  • Hi Davide,

    To answer your questions:

    1. Due to the LED driver design on the board, this is not possible.

    2. There may be a way to speed this part up but it would probably require a fairly substantial work. Using the LCr hardware, I would start with looking at the USB interface in the QT GUI. You will probably also have to look at the DM365 code and modify the receive side code as well. You may be able to optimize and update to make it faster, but this is not something we have done and have any easy recommendation for.

    Best,
    Paul