this is exactly what the jit.gl.slab object is for. don't create a jit.gl.texture and a jit.gl.shader. simply create a jit.gl.slab and read in your shader file.

thanks, I figured it out. but what do you mean by dont create jit.gl.texture? now I did put jit.gl.slab before jit.gl.texture. is not that the way to go? like this:

that's fine. alternatively you can simply connect the output of the gl.slab directly to the input of the gl.mesh, and remove the @texture attribute from the gl.mesh box.

two ways of doing the same thing.