[jitter] normalize shader

On Oct 5, 2007, at 4:56 PM, Wesley Smith wrote:

> ah you're right.  I was thinking in CPU ways.  You couldn't even
> access previously written values in a fragment shader anyway.

Yes. That too...

Full frame analysis generally requires a multipass solution in a  
stream processing model. Doesn't mean a combination of CPU and GPU  
wouldn't be fastest for some people's needs. e.g. perform a few  
passes to perform a maximum downsampling a few times on the GPU, read  
back the image to the CPU, send to jit.3m, sent to jit.gl.slab @file  
cc.scalebias.jxs.

-Joshua