X3D - A 3D Engine for Nspire and PC

→ **MyCalcs** profile · by **catastropher** » 28 Jul 2017, 04:28

Hello! My name is catastropher (some of you may know me from Codewalrus) and I am the developer of X3D, a 3D engine for PC and the Nspire. I've been working on X3D for the past two years (and have restarted it several times, the most recent being the beginning of the summer). Though still in early alpha, X3D is a very powerful engine and is written entirely from scratch in C. The source, currently ~12k lines, is available on my github here. As of a few weeks ago, it can now load Quake levels and is able to render them at 10-20 fps on the Nspire CX. And as of today, it can do lighting as well:

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If you guys are interested, I'll upload a demo soon

Please let me know what you think!

My calculator programs · by **Adriweb** » 28 Jul 2017, 07:51

I've said it before, but this is definitely worth saying again: Congratulations, this is impressive, and the portability is very nice

I'm sure people would like to try a demo, even if limited

Feel free to upload one to the archives!

(Out of curiosity, even though it would have less users than the other versions, what's the state of the 68k version? Since that's in the name/description of the repo

)

Edit: since I'm doing Emscripten stuff these days, have the thought of having a web version (compiled automatically to asm.js via emscripten) crossed your mind? It is probably not so hard to port since SDL is available/integrated.

→ **MyCalcs** profile · by **catastropher** » 29 Jul 2017, 21:53

Adriweb wrote:I've said it before, but this is definitely worth saying again: Congratulations, this is impressive, and the portability is very nice

Thank you very much! I really appreciate the support

Adriweb wrote:I'm sure people would like to try a demo, even if limited Feel free to upload one to the archives!

Done! The demo is here if you'd like to give it a try!

Adriweb wrote:(Out of curiosity, even though it would have less users than the other versions, what's the state of the 68k version? Since that's in the name/description of the repo )

Haha the 68k port was abandoned because it doesn't have enough memory/processing power

I never changed the name of the repo though! XD

Adriweb wrote:Edit: since I'm doing Emscripten stuff these days, have the thought of having a web version (compiled automatically to asm.js via emscripten) crossed your mind? It is probably not so hard to port since SDL is available/integrated.

I'll take a look into it!

→ **MyCalcs** profile · by **catastropher** » 22 Dec 2017, 19:30

Hi guys, I'm reposting this from Codewalr.us:

Well I've been on a coding binge for the last few weeks so I thought I'd give an update:

Implemented mouselook (yaaay no more turning with arrow keys!)
Implemented loading/rendering of level models
Added object type system for game objects
Added some builtin game objects, such as button and rising platform
Added event system with triggers e.g. push a button makes a platform raise
Figured out how to get paint on walls, which will be used for Portal gels!
Added numerous upgrades to the physics engine

Here's a demo of a small Portal-like chamber with all of the aforementioned feature (aside from the paint):

I did my best to make it somewhat look like a Portal chamber. I'm very excited because the engine is finally getting to a point where you can start doing real things with it. If anyone is interested in giving the demo a try the source is on github!

→ **MyCalcs** profile · by **grosged** » 22 Dec 2017, 20:31

! wonderful !

My calculator programs · by **Adriweb** » 22 Dec 2017, 20:43

That's a very impressive demo, congrats and keep going!

(Also, I replaced your big .gif by a much smaller webm

)

→ **MyCalcs** profile · by **Lionel Debroux** » 22 Dec 2017, 22:42

Fantastic work, as always

→ **MyCalcs** profile · by **catastropher** » 27 Dec 2017, 05:26

Apologies for the late response! I hope everyone had a merry Christmas/happy holiday!

grosged wrote:! wonderful !

Thank you very much!

Adriweb wrote:That's a very impressive demo, congrats and keep going!

(Also, I replaced your big .gif by a much smaller webm )

Thanks for the encouragement and for replacing the gif, I had never heard of webm!

Lionel Debroux wrote:Fantastic work, as always

Thank you! You know, it was you emailing me a few years ago that inspired me to keep going on the project! It's taking me forever but hopefully I'll have a full working game of Portal at the end of this!

→ **MyCalcs** profile · by **catastropher** » 09 Jul 2018, 00:48

Been working on the new portal rendering system :3

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I've decided to switch to a 3 month release schedule so that I don't keep disappearing for 6 months at a time

So I'm looking at releasing a playable demo in September. I'll make a post shortly with what my development goals are by then! I've been making a lot of structural changes to the engine since it's now written in C++ rather than C. This left 35k lines of code to be refactored... so I'm trying to balance adding new features with cleaning up what's there.

→ **MyCalcs** profile · by **Lionel Debroux** » 09 Jul 2018, 06:21

Good progress

You're right to have switched to C++. C has been stagnating for years, and platforms which don't have a C++ compiler are unfit for running such engines at a decent framerate anyway.

What are the binary's size and the RAM usage for the Nspire, if you're still maintaining support for that platform ?