Are there people that have outputted an mesh to a laser using the Etherdream ? The laser shows all lines and was wondering how i can set it up so it only draws the lines that are visible.
regards,
Ian
Are you rendering to a TOP and then using the Scan CHOP? You could use the Wireframe SOP or face-culling before the TOP render. Scan CHOP has a SOP input option but the TOP input option probably offers more control. P.S. I haven’t used a laser yet myself but I’m eager to get started.
The TOP input is quite limited as it has to reduce the image to some low resolution, before outputting it pixel by pixel, row by row.
Its useful for very simple abstract imagery.
If you drive the output of an analog oscilloscope, instead of a slow-moving laser, you can get more recognizable results from the TOP.
You need to zero out your color channels when the laser should be blacked out. This often requires a few samples of black color sent around the transition point of the laser position moving from one line to another.
Hi all,
What do you mean by that Ben…ok some line should be then rgb 0, 0, 0 at some point …but how do i tell that through a mesh or image top.
so what i did and got is this
pass = proartsdesign
cheers
Ian
another question
Kvant lasers run on Beyond software an run on like 12 channels …maybe a good idea to invest in an Op for that …the hardware adapter between laser an pc connects through usb …if you can create an OP for communicating with that adapter … 
I guess you’re looking for a grid pattern with no overlapping return traces?
You’ll have to play with the point count and sample rate you’re driving the projector to avoid curved/lagged lines, but more importantly, you may have to build the geometry yourself, with the exact path you need.
It would look something like:
+-----------------+
|
+-----------------+
|
+-----------------+
|
+-----------------+
+
+-----------------+
|
+-----------------+
|
+-----------------+
|
+-----------------+
+(apologies if it doesn’t line up quite properly on your browser)
overlayed with another copied rotated 90 degrees, though you’ll get a few edges on the boundaries overlapping/brighter.
yeah …need to get rid of the return traces…seems i need to do some Python work to tell it to turn black from going to a new scan line from right to left…basicly i want to achieve this (see image) from a normal picture. but the Etherdream scans/shows also the lines you dont want to see…the non horizontal ones…
Dont really know where to start to achieve this
