Hey Goobers,
I saw your video and it looked nice . Guess that panel works without FTIR, or did it? I think that if you use FTIR you can put a piece of siliconrubber on the brush and paint more accurate.
I wasn’t using FTIR in that video, as i couldn’t get it to work in time for the end of the project- instead i put an infrared LED onto the brush itself, but i hope to get it working with FTIR soon, as I think that would improve it a lot. I need a new camera too, as the one i used had a very sketchy framerate, as you can see in the video. Not sure what to get… I saw a good sony security camera on ebay with a zoom lens… might be worth a try
hello all!
after reading the improved tutorial (which is the definite one) i made some update too. since issues with gettin a proper video image were reported, i made a new version of the patch with easier access to the video settings (yesterday’s version was still set to work with a DV cam)
What should we be doing to get it to work with a webcam. The webcam driver is selected, analog video is nil, analog video standard is nil, and video format has a choice of 3 video formats.
try all three choices, and switch background subtraction and blob detection off.
if theres still no image, it could be your graphics board. it must support Pixelshader 2.0.
to find that out, connect the Video window directly to the VideoIn node.
by “video window direction to the videIn node”, what do you mean by “video window”? I directly attached the videoIn to the videoOut and that displays an image. (i also get an image if i attach it to the contour node). So im guessing is something to do with the background subtraction section.
I notice there is a node at the top right with the words background_subtraction in it, but this isnt connected to anything?
Your previous patch works fine. And ive copied the videoIn settings, and turned off the tracking and background subtraction. still no luck.
My graphics card is a nvidia geforce 6800 (from what i’ve read it supports pixel shader 2), and i have the latest directx.
I notice there is a node at the top right with the words background_subtraction in it, but this isnt connected to anything? Should this be connected to something? I’ve uploaded a picture showing what i see.
Did you download any special vvvv shaders etc to get this to work?
I just downloaded “backgroundsupression.fx” off the vvvv site and bolted-on/overwrote their example to youre patch, which seems to work.
stupid me. yes, of course the shader has to be downloaded and put into the vvvv effects folder before opening the patch. in your screenshot, the node is simply missing because it was not installed…
Questions: what’s the advantage of sending the blobdata over to Processing? Isn’t it faster to just use it in vvvv itself? Or does processing have more possibilities for the data?
I haven’t seen anything really cool yet that’s done outside vvvv that vvvv couldn’t do.
I guess the reason vvvv is stuck to windows because it directly addresses Directx, also makes really nice graphics using shaders etc.
When you’re using vvvv to capture data to relay that data to processing you still need to pay royalties for commercial use
And you’re probably right about the java + experience thing. Since I only have some basic knowledge about programming I preferred NOT to use processing. (Painting just a simple circle around the blobs cost me ten times longer in Processing than in vvvv>connecting the boxes.)
. Guess that panel works without FTIR, or did it? I think that if you use FTIR you can put a piece of siliconrubber on the brush and paint more accurate.
