Iop::sample() is basically intended for texture sampling, so it's not designed to be used on a single Row, it needs a rectangular input region. If you're trying to convolve the pixels on a single output row then you access the Row's float data directly.
Look at the way that Dilate.cpp's engine method iterates across the Row. -jonathan On Sep 23, 2011, at 1:40 PM, sman77 wrote: > Thanks jonathan, > > I have manged to process each row as shown in these examples. The bit I am > stuck on is applying the sample function on pixels I have already modifyed > during the same pass. This is because the sample function only works on the > input image ie input0.sample(...) > > Is there a way of using the sample function on the out Row? > > ie > Pixel pixel(channels); > out.sample(centre, uVector,vVector,pixel) > foreach ( z, channels ) > ((float*)(out[z]))[x] = pixel[z]; > _______________________________________________ > Nuke-dev mailing list > Nuke-dev@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev _______________________________________________ Nuke-dev mailing list Nuke-dev@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev
