On 2013-02-17, at 22:13, Hans-Martin Mosner hmm@heeg.de wrote:
Am 02/17/2013 08:37 PM, schrieb tim Rowledge:
In particular, in relation to Scratch, take a look at http://www.youtube.com/watch?v=7PGLzSx3_eA At about 3:30 he's running Doom. Now, somebody tell me that a PI can't do graphics fast...
The GPU is ok, but it needs to be accessed properly. Don't know how well the OpenGL stull is supported in RISC OS, in linux it's accessible but AFAIK there is no proper X11 integration so you need to take over the screen (which is the One True Way to do Smalltalk anyway :-) .) When I find some cycles to burn on the RasPi I'd like to try an OpenGL ES display interface for Squeak. Too many projects, too little time...
THis weekend I tried Minecraft on the RPi (http://pi.minecraft.net/). Renders pretty smoothly, and you can "hack" it. Just telnet to port 4711 :) If I find time next weekend I'll do some Squeak bindings (they ship Python and Java ones, and I saw Ruby on the 'net).
Minecraft Pi pretends to run OpenGL in a window. They use the same trick as we do in Squeak: put a 3D overlay on the screen, and move it when the window moves. But you notice the cheating when you try to bring another window in front of it ;)
- Bert -