Using ofxKinectForWindows2 and ofxFlowTools

[rootux]

I've tried combining ofxKinectForWindows2 and ofxFlowTools to read data from the kinect camera.
https://github.com/rootux/visionquest
I'm calling the kinect like so:
kinect.getColorSource()->draw(0, 0, cameraFbo.getWidth(), cameraFbo.getHeight());
I've tried the IR and the depth - all seem to be drawing the camera OK *_without *_going through the filters (see attached Image )

What am I missing?

[shenberg]

Okay, I got a windows pc and spent time debugging this and found the issue (this applies to the various closed issues on windows/linux):

@moostrik ftOpticalFlowShader.h was broken in commit d7e723b - specifically flow = normalize(flow) * vec2(strength); with flow starting as (0,0) will result in flow being either (NaN, NaN) or (Infinity, Infinity). For some reason, on mac when you read nan/infinity from a float texture you get 0 (from Nvidia at least, I've seen forum posts about intel returning nan/inf properly), while in win/linux you get nan/infinty.

Once you get invalid FP values they propagate through the system and poison all the textures due to everything being feedback-based. Reverting to the old code solves the issue at the cost of a somewhat unnoticeable difference in behavior (threshold is set low enough by default that I can't tell the difference between the two shaders).

[moostrik]

wow, this clarifies a lot!
Thanks