   debugging GLSL. what can i use besides driver logs?
  Hey. ive been paying around with GLSL for a couple of weeks now but debugging them is realy becoming a pain since the errors i get back from the the driver are either not very informative or just plain wrong... is there a good 3'rd party utility i should be using to help out with this? for example: currently my fragment shader doens'nt want to link yet it compiles without errors. It only saysInfo Log of Shader Object: required//main.vert--------------------------Vertex shader was successfully compiled to run on hardware.Info Log of Shader Object: required//main.frag--------------------------Fragment shader was successfully compiled to run on hardware.Shader Program Info Log: --------------------------Fragment shader(s) failed to link,  vertex shader(s) linked. and ive only made a couple of small changes to it so its probely just a simple mistake that causes this but i have no way of determining what it is other than reading over all the shader code.Thnx in Advance!   
  render to 4 or 8 RGBA32F render-targets, putting the values you're interested in into gl_FragData[] and do glReadPixels to fetch data at the pixel at cursor-position.Ah, about problems with compiling and linking - you're using an ATi card it seems, so no help there... Try cgc.exe for a bit. Update drivers again and again...   ;  k thnx... i just tried it on my other pc that has a nvidia card and it worked fine.   