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Can't get any ouput from jit.gl.slab shaders

March 15, 2010 | 12:28 am

I’m trying to run Benson’s Video Processing System tutorial #1 (located here: http://cycling74.com/2008/12/22/the-video-processing-system-part-1/ ), but unfortunately I can’t get any video output through the jit.gl.slab object he’s using as a cross-fader. However, if I bypass his cross-fader patch, I get video output fine.

He’s using: jit.gl.slab mod @file co.normal.jxs

I’m using Windows and Max 5.1.3 and see that the file is located here: C:Program FilesCycling ’74Max 5.0Cycling ’74jitter-shaderscomposite

Is there anything else I have to do to get shaders working? I can’t get any video ouput from the jit.gl.slab help file either.

Here’s a screen shot summarizing my situation: http://gyazo.com/71d1a6db32068170e87be66200234de7.png


March 15, 2010 | 8:37 am

Please provide more info about the issues running jit.gl.slab help patch, let’s get that one working first.

Are there any messages in the max window?

What videocard and drivers are you using?

Is this Windows Vista?


March 15, 2010 | 3:35 pm

From the screenshot, it looks like the metronome->qt.grab might need to be on. jit.gl.slab’s calcuation is only triggered by a *left* input.

Just a stab…


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