Paul Koning wrote: >> I'm entertaining the idea of improving the CRT display simulation in >> SIMH. ... Does the SIMH video framwork support using shaders >> written in e.g. GLSL? > > I wrote a CDC DD60 simulation for use with DtCyber that attempts to > model the CRT and spot behavior. It does that by computing a 2-D > Gaussian intensity distribution around the spot center, then sums that > into the saved screen pixel value (with saturation). And then that > value is decayed exponentially.
Yes, I had something like this in mind. > All this was done with wxWidgets and its direct bitmap access. It may > be that video shaders or GL machinery would be more efficient but I > haven't studied how to do that. I have played a bit with GLSL, so I think I could make it work. In my experience, it should be considerably more efficient. But of course it's futile if the right mechanisms in SIMH aren't in place. I believe SIMH relies on SDL2 which does offers access to shaders in some way. _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
