| 01:31.58 | *** join/#brlcad craigbass1976 (n=chatzill@d-216-195-164-117.gwi.net) |
| 01:53.54 | craigbass1976 | Is anyone in here? |
| 03:06.21 | pra5ad | Twingy, what font lib do u use for adrt? |
| 03:11.55 | Twingy | my own |
| 03:16.27 | Twingy | hrm |
| 03:16.49 | *** join/#brlcad PrezKennedy (n=Apathy@pcp0011645240pcs.aberdn01.md.comcast.net) |
| 03:20.50 | pra5ad | yea? |
| 03:20.56 | pra5ad | using freetype2? |
| 03:21.27 | pra5ad | or just a bmp of 8x8 glyphs? |
| 03:27.38 | Twingy | ooh |
| 03:27.57 | Twingy | bitmaps |
| 03:28.03 | Twingy | #include font.h |
| 03:28.13 | Twingy | made it in gimp |
| 03:28.47 | pra5ad | howd u make the bmp? |
| 03:28.57 | pra5ad | gimp plugin? |
| 03:29.00 | pra5ad | manually? |
| 03:29.44 | Twingy | used fixed font, typed 128 characters |
| 03:29.52 | Twingy | used SDL_Rect to map em |
| 03:40.06 | pra5ad | do u have font color support? |
| 03:43.41 | Twingy | nope |
| 03:43.50 | Twingy | trivial to add though |
| 03:46.03 | pra5ad | how so? |
| 03:46.37 | Twingy | well, for my font it's got 2 colors cause it's shadowed |
| 03:46.54 | Twingy | set the primary color to 1,1,1 and on init() just set the color |
| 03:47.11 | Twingy | or |
| 03:47.32 | Twingy | use some sdl foo |
| 03:47.32 | pra5ad | i meant multi font color at run time |
| 03:47.32 | Twingy | sdl's got masking |
| 03:47.32 | pra5ad | <draw text in blue> <draw text in yellow> |
| 03:47.32 | pra5ad | oh? |
| 03:47.32 | Twingy | so set the color to white |
| 03:47.32 | pra5ad | cool |
| 03:48.14 | Twingy | I've got an idea for nitrous propane pulsed rocket motor |
| 03:49.41 | Twingy | ya know, a pair of jet engines mounted to the side of the rocket for initial ascent would be kinda clever |
| 03:49.54 | Twingy | then at 5 miles it dumps em |
| 03:51.52 | pra5ad | do u have alpha in ur font bmp? how are u loading it into the sdl surface? |
| 03:52.08 | Twingy | it's alpha 32bit |
| 03:52.51 | pra5ad | raw? no header? |
| 03:53.09 | Twingy | hrm? |
| 03:53.18 | pra5ad | windows 'bitmap' has a header |
| 03:53.22 | Twingy | oh |
| 03:53.23 | Twingy | use gimp |
| 03:53.28 | Twingy | save it as a "c-source" file |
| 03:53.31 | Twingy | rename it to font.h |
| 03:53.35 | pra5ad | rofl |
| 03:53.36 | Twingy | and you're set |
| 03:53.48 | pra5ad | ok then what? |
| 03:53.51 | pra5ad | sdl_load_bmp? |
| 03:53.53 | Twingy | no |
| 03:53.57 | Twingy | it's a struct |
| 03:54.08 | Twingy | it's raw rgba data |
| 03:54.13 | Twingy | memcpy it into surface->pixels |
| 03:54.20 | Twingy | check out my display.c file |
| 03:54.23 | pra5ad | k |
| 03:54.43 | Twingy | it's like 15 lines of code |
| 03:55.17 | Twingy | hrm, I think when I get my machine tools I'm gonna build a jet engine and rocket motor |
| 04:00.36 | Twingy | I wonder how many years I'd have to spend in school before I'd actually get to build one, heh |
| 04:48.14 | pra5ad | yo |
| 04:48.19 | pra5ad | are u using an opengl context? |
| 04:48.22 | Twingy | no |
| 04:48.26 | pra5ad | ah |
| 04:48.53 | pra5ad | cos sdl blit w/ color key transparency doesnt produce 'transparency' |
| 04:48.58 | pra5ad | just replaces it with white |
| 04:49.25 | pra5ad | hmm perhaps not |
| 04:50.04 | pra5ad | nm same thing :( |
| 04:51.15 | Twingy | white means you don't have a n^2 texture |
| 04:55.43 | pra5ad | huh? |
| 04:56.00 | pra5ad | sdl blit doesnt go through opengl |
| 05:05.22 | Twingy | erm |
| 05:05.36 | Twingy | don't recall |
| 05:05.42 | Twingy | been too long since I've done opengl |
| 05:16.12 | Maloeran | SDL 2d graphics operations can go through opengl calls if you pass some flag to SDL on context creation, but it's not really recommended |
| 05:18.33 | pra5ad | oh |
| 05:19.13 | Maloeran | SDL_OPENGLBLIT on SDL_SetVideoMode() if I recall correctly |
| 05:20.59 | pra5ad | i had that |
| 05:21.09 | pra5ad | took it out; nothing shows up now |
| 05:21.19 | pra5ad | do i blit after the flip? |
| 05:22.38 | Maloeran | Blitting operations are the equivalent of glDrawPixels() calls, render before flipping buffers |
| 05:26.15 | pra5ad | w/o sdl_openglblit, updaterect seg faults |
| 05:26.29 | pra5ad | gldrawpixels it is |
| 05:26.50 | Maloeran | Yes, just use glDrawPixels directly |
| 05:27.18 | pra5ad | was doing blitsurface + updaterect b4 |
| 05:27.22 | Maloeran | If the image is static, it would be more efficient to upload it as a texture and render a textured quad |
| 05:27.23 | pra5ad | latter was seg faulting |
| 05:28.01 | pra5ad | i agree, but at this point in time efficiency isnt an issue =) |
| 05:28.47 | Maloeran | It's also a matter of flexibility, textured quads can be rendered with bi/trilinear filtering to adapt to any viewport size... |
| 05:29.06 | Maloeran | What are you working on, briefly? |
| 05:29.09 | pra5ad | so the seg fault screwed up my desktop (gnome on debian) |
| 05:29.26 | pra5ad | any way to restore it w/o ctrl-alt-backspace |
| 05:29.49 | Maloeran | Screwed how? |
| 05:30.10 | pra5ad | desktop seems to have a bigger resolution that the monitor.. can scroll around with mouse |
| 05:30.39 | Maloeran | Ah right. leftctrl+leftalt+numpadPlus or +numpadMinus |
| 05:30.55 | Maloeran | By default, this should cycle through available resolutions |
| 05:31.14 | pra5ad | no go |
| 05:31.29 | pra5ad | ctrl-alt-bspace is gonna log me out (iirc) |
| 05:31.37 | pra5ad | rather not do that |
| 05:34.10 | *** join/#brlcad pra5ad (n=prasad@pool-151-196-29-221.balt.east.verizon.net) |
| 05:34.15 | pra5ad | ah well |
| 05:34.17 | pra5ad | had to kill x |
| 05:35.28 | Maloeran | You don't have to kill x to change resolution ;), but anyway |
| 05:36.39 | pra5ad | didnt work thru gnome :( |
| 05:36.55 | pra5ad | dont really know any other way to change res |
| 05:39.56 | brlcad | pra5ad: ctrl-alt-plus ctrl-alt-minus don't work? |
| 05:40.17 | brlcad | Xconfigurator can change it for you too, iirc |
| 05:40.55 | pra5ad | didnt work |
| 05:41.03 | Maloeran | Eh. xrandr -s 0 |
| 05:41.07 | pra5ad | lol it works now |
| 05:41.19 | pra5ad | didnt work after the seg fault :( |
| 05:41.53 | Maloeran | Try xrandr after the next crash :) |
| 05:42.10 | pra5ad | heh np |
| 07:02.37 | pra5ad | #_# |
| 07:08.21 | Twingy | 80mpg is quite tempting |
| 13:34.35 | `Erik | sean: flex -i |
| 13:40.10 | brlcad | `Erik: and a more portable way? |
| 13:40.46 | brlcad | i think I have something working just using the rules where it converts unknowns and reprocesses caseinsensitive |
| 13:42.49 | `Erik | *shrug* filter rules to force lower (or upper) case? |
| 13:43.16 | brlcad | yeah, that's sort of what I used |
| 13:43.22 | `Erik | (does irix lack flex or something?) |
| 13:43.27 | brlcad | was hoping for some sort of %rule |
| 13:44.19 | `Erik | d'no of any % rule, I tend to do case sensitive shtuff *shrug* :) |
| 13:44.20 | brlcad | more worried about solaris, aix, hpux and older systems |
| 13:44.40 | `Erik | could always distribute the yylex.c file |
| 13:44.53 | `Erik | then they only need flex if they modify the .l files |
| 13:45.12 | brlcad | could, but changing the rule works |
| 13:48.57 | `Erik | [::alpha::] for all your characters? :) |
| 13:51.42 | brlcad | heh, nah .. when it finds an unknown symbol, it converts them to lowercase and pushes them back on the stream |
| 14:51.27 | pra5ad | how do u link against .so and not .a? |
| 14:53.03 | brlcad | -l |
| 14:53.23 | pra5ad | yea? |
| 16:03.26 | *** join/#brlcad DTRemenak (n=DTRemena@DHCP-170-143.caltech.edu) |
| 16:33.41 | Twingy | grumph |
| 17:15.09 | `Erik | prasad: yeah... |
| 17:42.22 | *** join/#brlcad PrezKennedy (n=Apathy@pcp0011645240pcs.aberdn01.md.comcast.net) |
| 17:42.24 | Maloeran | Even the credit card(s) are fully loaded? :) |
| 17:51.59 | pra5ad | who does the gnu free documentation licence apply to code snippets |
| 17:52.30 | pra5ad | s/who/how |
| 19:00.45 | Twingy | good run *grunt* |
| 19:02.12 | Twingy | haha, net worth $5.02 |
| 20:02.32 | pra5ad | yes |
| 20:05.14 | Twingy | I wanna build a hybrid rocket jet engine |
| 20:05.27 | Twingy | using nitrous and propane with a platinum catalyst |
| 20:06.09 | Twingy | where the nitrous kicks in at 8 miles altitude |
| 20:06.52 | Twingy | I think something like that would be rather efficient |
| 20:16.52 | pra5ad | w/ a type-r sticker |
| 20:30.24 | `Erik | you fruityassed fruity twink |
| 20:30.24 | `Erik | :D |
| 20:33.48 | `Erik | man, this is fun |
| 20:34.54 | Twingy | mm, 3 weeks till I move |
| 21:08.57 | pra5ad | i hate tga |
| 21:11.47 | Twingy | and tga hates you |
| 21:29.17 | pra5ad | sigh finally |
| 21:29.25 | pra5ad | text in opengl |
| 21:29.46 | Twingy | heh |
| 21:29.56 | Twingy | that'll teach you to make text *grunt* |
| 21:30.05 | Twingy | I actually wrote my own font system for nurbana |
| 21:30.17 | Twingy | made a font editor too, all fonts were made out of bezier curves |
| 21:30.36 | Twingy | was kinda fun |
| 21:30.53 | Twingy | took 2 days, just stripped out a bunch of junk out of the modeler and I had a font editor |
| 21:33.01 | Twingy | wee, table works |
| 22:12.10 | pra5ad | hrm how do u modulate texture colors |
| 22:12.20 | pra5ad | i know how to do it in dx9 |
| 22:12.32 | pra5ad | not in opengl :( |
| 22:17.57 | pra5ad | ohh that was easy |
| 22:17.59 | pra5ad | nm :) |
| 22:26.10 | Maloeran | Are you around Twingy? I would have a question on go-through ray needs |
| 22:28.02 | Maloeran | Basically, are these rays typically stopped after a variable amount of steps, or you usually let them go through all the scene, or up to a specific count of steps? A callback per hit is costly, having to flush the whole working data set in registers to stack for the function call, and restore it back |
| 22:29.56 | Twingy | the rays are stateful |
| 22:30.13 | Twingy | each successive call to the intersection function continues |
| 22:31.03 | Maloeran | Ah, so you don't check a return value from the callback to know if the ray must be stopped, for example |
| 22:31.14 | Twingy | I do |
| 22:31.23 | Twingy | but the architecture will soon to what I just described |
| 22:31.29 | Twingy | *change |
| 22:31.36 | Maloeran | Right, thanks |