slab, shader AND gridshape-plur? is it possible?

hello everyone - would it be possible to process the plur results with a slab? i love how plur interpoloates and what not, and i'm trying to implement my own shader, too.

what i have right now are a live video and another matrix blended together and this combination is used as a texture for the jit.gl.gridshape, which is then sent to the jit.plur.....

i've tried a few things with little success. just as a test, i used the lumagate shader program included in the shader writing tutorials; i did notice that the video that i passed to the slab would flicker on and off when i adjusted other certain parameters of the camera, which sort of reminds me of what happens when two instances are instructed to appear at once... :/

so! i've attached my patch, thanks for the help!