My curve tool for masks will have per CV transition control and ill keep the design in mind so it can be reused for spot in future.
/H 2012/10/15 AlicVB <[email protected]>: > MMh I think that it is too difficult for me (in fact, even with a good > dictionary, I'm not sure to understand every word you use !) > For instance, I have looked at other soft and I think most of them > (gimp, krita, ASP) seems to just apply some Gaussian blur to the mask in > order to create the transition. I've tried that, and it works quite > well, especially with the f*f(3-2*f) function after ! > I think We can stick with that for instance, and maybe in a 2nd step, > add the possibility to choose another transition, when someone with more > skill than me (you , for ex.) want to code it. > > But thanks again for your explanations > AlicVB > > Le 15/10/2012 00:27, Moritz Moeller a écrit : >> On 15/10/12 1:06 AM, AlicVB wrote: >>> 1- I use a 2dary spline around the main one. All point of this spline >>> are at equal distance from the main one. I call this distance "radius" >>> The 2ndary spline is not drawn, thought, but user can modify the radius >>> with mouse wheel >> >> No, this is not enough. You need to be able to vary the fade region's >> width at each CV. >> >> See a screenshot from Nuke here: >> >> http://inkscape-forum.andreas-s.net/attachment/6123/nukeRoto.png >> >>> >>> 2- to determine the opacity of a point in the transition, I determine >>> the distance between this point and the main spline, then I use a >>> function like x*x(3-2x) to avoid too linear transition. >> >> Yep. But if you have a 2D bicubic mesh and a function to evaluate the >> parameter (u,v) for a (x,y) pixel position, you do not need to solve a >> distance function and you lift the restriction that the outer spline's >> CVs must always lay on the normal of the inner spline's matching CV. >> >> .mm >> > > > ------------------------------------------------------------------------------ > Don't let slow site performance ruin your business. Deploy New Relic APM > Deploy New Relic app performance management and know exactly > what is happening inside your Ruby, Python, PHP, Java, and .NET app > Try New Relic at no cost today and get our sweet Data Nerd shirt too! > http://p.sf.net/sfu/newrelic-dev2dev > _______________________________________________ > darktable-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-devel ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
