[racket-users] Bitmap drawing performance

2015-08-10 Thread John Carmack
We are just getting ready to release my son's little Racket game, but after doing all the development on OS-X, I find that the windows performance is terrible. In hindsight, we should have just used bitmap / dc drawing directly, but it grew out of playing with HTDP / Realm of Racket examples.

Re: [racket-users] Bitmap drawing performance

2015-08-10 Thread Matthias Felleisen
On Aug 10, 2015, at 1:19 PM, John Carmack jo...@oculus.com wrote: We are just getting ready to “release” my son’s little Racket game, but after doing all the development on OS-X, I find that the windows performance is terrible. In hindsight, we should have just used bitmap / dc drawing

[racket-users] Racket v6.2.1

2015-08-10 Thread Ryan Culpepper
Racket version 6.2.1 is now available from http://racket-lang.org/ Version 6.2.1 patches the recent v6.2 release in three small ways: * For the How to Design Programs teaching languages, DrRacket offers an option to use the old style for printing the constants `true`, `false`, and

[racket-users] Website Eyecandy from days gone by

2015-08-10 Thread Tim Brown
Folks, The “PLT Scheme” website, as was, had a set of preview pictures along the left hand side which scrolled in a “fish-eyed” kind of way (you either know what I’m talking about or not). Is the source of this (or anything similar) available anywhere for me to “learn” from? Regards, Tim --