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On 2011-01-31 22:43, Markus Demmel wrote:
Hi,
when i try to use a shader, simply nothing happens to the image. I also get no 'linking' message.
there is a known bug in debian packages of "gem" on 64bit machines. if you are running a 64bit linux (it seems like you didn't really tell us neither your operating system nor your version of Gem), this might be related.
recent Gem (current SVN trunk) has this fixed .
apart from that, i'd advise to have a look at the 2nd outlet of the various shader objects, and see whether they produce any valid ID.
fgasdmr IOhannes