2009.12.25

I added a little something for Christmas.

2009.11.23

I've updated the GL Lua Shell a few times. One feature was to add a color picture, as can be seen demonstrated in the GPU Fluid Simulation page. Another was to make the menu system pixel-based rather than sized according to some arbitrary ratio of the window.

Speaking of window ratios, I added Carbon windows resize functionality somewhere in there. It's a wonder I got by so long without it added. The menu system components are now set up with a scale parameter. Set the root's scale to a constant for arbitrary scaling. Set it to (c/width, c/width) to scale the menu to maintain its ratio while stretching the width of the screen. Set it to (c/height, c/height) to scale the menu to maintain ratio and stretch to height. Set it to (c/width, c/height) to simply stretch the menu to some arbitrary unit of measure independent of pixels.

Speaking of fluid simulation, I added that as well as a GPU implementation of Conway's Life as well as Wolfram's Rule 110.

...and the HTML Beautifier is now a HTML parser.

2009.09.29

I added an important caveat on building anything Lua-based to my GL Lua Shell page.

I also added a mark-and-sweep garbage collection system. I implemented this in my menu system to hopefully give it even a bit more safety in the memory management side of things. With that comes updates for the menu system, parallax mapping demo, and the GL Lua Shell.

2009.09.11

I've posted some new additions...
• A GPU-based Hopfield network, to be run with the GL Lua Shell.
• A parallax mapping demo, complete with both C++ code and GL Lua Shell script.

While updating things I also fixed some memory-management-on-shutdown bugs in the menu library and updated that. I also found a subtlety in the VirtualBox Windows OpenGL drivers that I'm using that was preventing glGetActiveUniformARB from working when I passed it a null buffer to fill its name with -- even if I asked it to write no characters into that null pointer. Now the parallax mapping demo works for me in Windows. I can't say if it would or wouldn't have for you, had you tried the script version before the GL Lua Shell update.

I also just learned that I can't tell you if any of my Windows-based code that uses framebuffer objects is working. That extension comes up as missing in my VirtualBox GL drivers. Maybe I'll use this as an opportunity to bullet-proff the GL Lua Shell on failing gracefully when it finds missing extensions...