Re: [PD] GEM noobie: I don't understand this glsl thing... but I need it!

glsl is the open gl shader language ... basically a simple C-like language for doing graphics stuff on the GPU, see https://en.wikipedia.org/wiki/GLSL

Also, see the OpenGL Orange Book

On Sep 9, 2013, at 5:01 PM, pd-list-request@iem.at wrote:

From: David Schaffer schafferdavid@hotmail.com Subject: [PD] GEM noobie: I don't understand this glsl thing... but I need it! Date: September 9, 2013 4:24:08 PM EDT To: pd list pd-list@iem.at

Hi there,

          I'm in the process of writing my own photo stitching/assembling abstraction but I'm having a lot of trouble understanding what the glsl object do... I've been able to implement an edge blurring function by copy/pasting the glsl code from the "panoramique.pd" patch and the "panoramique.vert" and "panoramique.frag" files to the right places, but it only blurs vertical edges. Can anyone tell me how I could blur horizontal edges too? and... what this glsl thing is all about. I'm no code expert, so please keep it understandable (!) 

Thanks a lot,

David

http://www.flickr.com/photos/schafferdavid/ https://soundcloud.com/schafferdavid

Dan Wilcox @danomatika danomatika.com robotcowboy.com