2.5d Engines

[namco]

Although this should really be in the development section of the forums, I've decided to place it here in the homebrew section, so those budding game programmers, and/or people who are midly interested in how things are done regardless of experience can see how.

After a google search I've found a posting on gamedev.net that gave some links to show how 2.5d engines are done.

A talk-through tutorial of ray-casting (not really code, just explainations)

More on how to code the ray casting engine

gamedev.net's article on advanced ray casting techniques

I hope this is useful.

Enjoy.

 

[Alex.]

Thanks for posting this namco, lately I began to take interest in 3D stuff, and it's nice to have this collection of articles close at hand. Cheers!

 

[Unfathomable Depths]

Something I found very interesting along similar lines.

Chase HQ style road with theory and code (c/allegro) scroll down to the bottom of the thread

 

[namco]

A little more about 2.5d stuff, however, this is the raytracing aspect of things, and not raycasting.

The differences between both are outlined in my first posting (first link).

Raytracing, nice article and, like the other one I posted, well written

Again, I hope this is useful for some devs (like yourself Alex.) and generates ideas!

[edit]:

Oh before I forget, for those that would like to try ray tracing (to see how it works) then I'd recommend having a go at a free raytracer called POV Ray.

 

[Dimacus]

Interesting read, thanks for the links!

 

[Alex.]

Just thought I'd chime in with a few new links:

Voxels:
http://www.codermind.com/articles/Voxel-te...he-terrain.html
http://wiki.allegro.cc/Pixelate:Issue_14/V...e_Renderization

Rotation, Mode7, and general Sin/Cos:
http://wiki.allegro.cc/Pixelate:Issue_5/Sin_%26_Cos

Simple fixed point:
http://members.aol.com/form1/fixed.htm - also see http://members.aol.com/form1/lib.htm

Wow, that's a gravedig and a half! Dare I ask what brought this thread to mind, Alex?

I just started playing with these things again and thought I'd post what I found useful and relevant. Besides, I thought grave digging was frowned upon only when applied to dime-a-dozen kind of threads.

 

[Tobriand]

Wow, that's a gravedig and a half! Dare I ask what brought this thread to mind, Alex?

 

[Unfathomable Depths]

I Stumbled that 'Sin & Cos - the programmers friends' article. Really enjoyed it.

THIS is also very nice - Ive got a working pool game now.

Im going to release it this weekend

 

[quasist]

FlipCode.Net nad a good voxel engine example&tutorials. Already arm-optimized since was for n-gage's

 

[Sphinxter]

Discussing, "ball physics", make me uncomfortable.

 

[namco]

Be glad he didn't mention "shooting his cue ball"....woops! ;p