Hmmmm, on a flight of fancy I decided to add in filters. I did it through adding in shaders, which I am really a dilettante in. But.....it's working. Took me 3 hours tonight. Not happy with gaussian blur but the rest are ok. Again, a bit of a hacky approach. Essentially i have a flag checking for whether if a filter is on. if so, set the shader, send optional parameter if available, draw canvas to screen, then set to no shader and turn shader flag off. currently prevents switching filters but i think i could solve that.
next i went back to my own artwork i had turned in for an exhibit and revisited the alternate version in L5 (i had sent the work as a p5.js project). now with the filters working my L5 version is fairly comparable to the p5 version. one weird timing issue in that L5 cycles the background color fade much faster. so i'll look at debugging that later.
pretty happy with things in L5 now. need to look at error() messaging, testing on Mac/Windows/any other computer besides my own, and documentation and testing next.
