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[11:16:46] <theresajayne> i am looking for a tutorial on how to render a series of points linked by planes, any suggestions
[11:18:16] <theresajayne> ie i have a 2d array with height values so 0,0 has a height 1 0,1 is height 2 1,0 is height 0 etc.
[11:24:08] <ra4king> for each (x,y,x+1,y+1) construct a quad/two triangles?
[11:24:11] <ra4king> There's not much more to it
[11:37:30] <theresajayne> yeah i know how to make the data, but how to put it on screen, i can plot the points at x,y,z but then how do i connect them as a "sheet"
[11:37:39] <theresajayne> how to make the triangles etc
[11:49:05] <theresajayne> and how do i place the camera in the right position
[11:55:05] <ra4king> theresajayne: have you displayed 3D objects before?
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[11:55:24] <ra4king> before you try to do this, you should just draw a simple scene first to understand how GL rendering works
[11:55:59] <theresajayne> not using lwjgl, i used pascal at college to manually render on screen back when i was there in the 90s
[11:56:36] <theresajayne> i am trying to understand how to do GL rendering, all i can find is tutorials to make the window have a different color
[11:56:37] <ra4king> oh wow that's old
[11:57:04] <ra4king> then there's a lot to understand about what goes into draw any pixels on the screen
[11:57:09] <ra4king> I recommend open.gl
[11:57:12] <theresajayne> i have been using back end non gfx stuff up till now - not much requirement for business sw
[11:57:33] <ra4king> it's C++ but the GL functions are basically the same
[11:58:25] <theresajayne> i understand about the rendering on the back plane then switching - i used to write demos on the amiga (again back in the 90's ) so i know about render off screen then switch the pages (easier on the amiga)
[11:58:54] <ra4king> right but GL has a lot of quirky details and designs
[11:59:03] <theresajayne> which i am trying to learn
[11:59:09] <ra4king> the concepts you know will help in understand why you are doing
[11:59:16] <ra4king> the tutorials will help you understand what you are doing
[12:08:05] <theresajayne> well i have these books http://my.safaribooksonline.com/book/programming/java/9780470031605  http://my.safaribooksonline.com/book/programming/game-programming/9781782166047 http://my.safaribooksonline.com/book/programming/game-programming/9781783287291
[12:08:38] <ra4king> the first one is incredibly old
[12:08:58] <ra4king> the other two are cool, libgdx is a fantastic engine #libgdx
[12:19:25] <theresajayne> ok so do i need to import lidgdx on top of LwJGL
[12:19:55] <ra4king> Libgdx imports everything you need, you don't need to ever worry or use lwjgl with it
[12:19:59] <theresajayne> i am using idea but dont like the idea of using the libgdx installer
[12:20:09] <ra4king> why not?
[12:20:20] <ra4king> libgdx project creator sets up the entire environment
[12:20:29] <theresajayne> it took me a couple months to set up everything perfect
[12:20:43] <ra4king> set up what perfect?
[12:20:55] <ra4king> all it does is properly configure the classpath
[12:20:58] <theresajayne> so it compiles and runs in idea without needing the -DLibraryPath
[12:21:05] <ra4king> exactly
[12:21:08] <ra4king> libgdx does all that
[12:21:28] <ra4king> it has the natives packed in the JARs, it extracts them to a temp folder, and directly loads them
[12:21:34] <theresajayne> i have a SharedLibraryLoader class that pulls them out of the jar
[12:21:40] <ra4king> too late :)
[12:22:17] <theresajayne> but i have the complete project on the github meaning i have to wipe and start again to add libgdx
[12:22:35] <ra4king> are you trying to make a game quickly or enjoy learning OpenGL?
[12:22:40] <theresajayne> on my github *
[12:22:45] <theresajayne> both
[12:23:20] <ra4king> I was expecting that answer. Choose two: short dev time, great game, understand OpenGL
[12:24:05] <theresajayne> the game dev will be a long long time I want to remaster / rewrite in java an old game from the 80s
[12:24:23] <theresajayne> its a 2.5d game
[12:24:49] <theresajayne> but i need to get to grips with opengl before i can complete that
[12:24:54] <ra4king> alright, well if you're fine with the dev/ramp-up time and want to learn OpenGL, I recommend to purely use LWJGL
[12:25:05] <ra4king> LibGDX is meant for making games quickly. You basically never use GL directly
[12:25:15] <theresajayne> so my short term goal is understand opengl/lwjgl long term get the game done
[12:28:05] <theresajayne> uh! what extensions do i need, its auto ticked Box2d, do i need bullet? freetype? tools? controllers? Box2dLights, Ashlet, aI?
[12:28:50] <ra4king> keep box2d, you do'nt need the rest really, idk what tools is?
[12:28:55] <ra4king> don't*
[12:29:47] <ra4king> oh these tools: https://libgdx.badlogicgames.com/tools.html
[12:30:22] <theresajayne> so do i need them?
[12:31:23] <theresajayne> well i dont need bullet
[12:31:57] <theresajayne> freetype may be of help
[12:34:00] <ra4king> anyway I'm going to bed
[12:34:02] <ra4king> good luck
[12:34:46] <theresajayne> thanks for the help though
[12:34:51] <theresajayne> Ashley looks interesting
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   September 30, 2017  
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