A software server with gui for up to 4 lasers live actions. Think creative like Laser "battles", planetarium,...
No .ild file here, you run your client that generate/send point lists to LJ. Any redis capable programming langage is fine.
Needs at least : an etherdream DAC connected to an ILDA laser, RJ 45 IP network (gigabits only !! no wifi, 100 mpbs doesn't work well with several lasers)
Nozosc : Semi modular synthetizers from Nozoids can send a lot of their inner sound curves and be displayed in many ways, i.e VCO 1 on X axis and LFO 2 on Y axis.
The server approach is based on redis. One process per etherdream is spawn to : retrieve the given point list from redis, warp, resample and manage the given etherdream DAC dialog.
- Automatically hook to Midi devices IN & OUT seen by OS. Very cool : LJ can script or be scripted by a midi device : Triggering different musics at given moments,... or in opposite, you can make a midi file with an external midi sequencer to script/trigger laser effects.
- Interactive (mouse style) warp correction for each laser.
- Web ui : In your browser open webui/index.html. Javascript is needed.
- Status every 0.5 seconds : every etherdream DAC state, number of buffer points sent,...
This is *critical and flickering reason #1* if not managed properly : use static network configuration, especially if you move your gear for different venues.
Our "always working solution" :
Our Etherdreams controllers have static IPs defined in their SDcard from 192.168.1.1 to 192.168.1.9. Because wifi will always finally sucks for many reasons, our computers are *gigabits wired connected* with 192.168.1.10 and after. Don't trust end user gear marketing on wifi.
We have a big *laser dedicated gigabit switch*. We provide Internet through wifi on a different network address like 192.168.2.x
Even if etherdreams are 100 Mbits, use gigabits gear. Use gigabits gear. USE GIGABITS GEAR :)
By default LJ uses on 127.0.0.1 (localhost) :
- A websocket on port 9001 for WebUI interaction.
- The redis server on port 6379 ('ljayserverip')
- An OSC server on port 8002. Incoming commands are transfered to webUI.
- An OSC client on 'bhoroscIP' port 8001.
- An OSC client for Nozoids support on 'nozoscIP', port 8003.
You need to update mainy.conf to your network/etherdreams IPs and be sure to check command arguments : python mainyservers.py --help
A dedicated computer to act as "laser server" usually depends on how many lasers you want to control and your main computer load. If you seen flickering with small point lists, try the dedicated computer option.
This program suppose that the ether dream is configured in a certain way especially for its IP address. For ether dream 1 : write an autoplay.txt file inside an SD Card within the ether dream DAC, with the following lines you can adjust i.e for pps or fps. Yes, there is a builtin DHCP client in the ether dream DAC but if you run multiple lasers, having a fixed dedicated network makes you focus on laser stuff.
/net/ipaddr 192.168.1.3
/net/netmask 255.255.255.0
/net/gateway 192.168.1.1
/ilda/pps 25000
/ilda/fps 25
About hardware setup, especially if you have several lasers : ILDA cables are insanely expensive. You may consider the Power Over Ethernet 'POE' option. Buy a very small ILDA cable, a POE splitter and connect everything to the ether dream fixed near your laser. You can have then a simple and very long network cable and use a Power Over Ethernet injector or switch closed to the driving computer. Beware some vendors use 24V POE Injector : POE injectors and splitters must match.
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# Coordinates if you use the proj() function
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3D points (x,y,z) has *0,0,0 in the middle*
A square centered around origin and size 200 (z =0 is added automatically) :
