Is it possible to mod the lighting and specular maps with doom open source engine?
https://github.com/id-Software/DOOM-3-BFG
It's written in C++. I would like to rewrite it just to test it out.
Is this possible?
HPL3 has C++ elements but ultimately it's an Angel Script engine. You would have to rewrite it from scratch to achieve the effects you want.
Like DocPoo said, HPL3 may have C++-like syntax but it is actually a language called
AngelScript. You don't have access to any of the C++ deeper capabilities, and in fact, you don't even have access to any functions outside of what is declared in the hps_api.hps file (or in other script files that also ultimately point back to that one file).
That being said, maybe this isn't what you were asking. Was there a particular effect or feature in the Doom engine that you were interested in replicating?
(01-31-2016, 01:32 PM)Abion47 Wrote: [ -> ]You don't have access to any of the C++ deeper capabilities, and in fact, you don't even have access to any functions outside of what is declared in the hps_api.hps file (or in other script files that also ultimately point back to that one file).
Why there isn't access of the C++ deeper capabilities?
Quote:That being said, maybe this isn't what you were asking. Was there a particular effect or feature in the Doom engine that you were interested in replicating?
Only specular bump map and lighting rendering.
What about particle system ?
(01-31-2016, 02:04 PM)brus Wrote: [ -> ]Why there isn't access of the C++ deeper capabilities?
Because it isn't C++. AngelScript is a sandboxed scripting language, meaning that it is only as powerful as the game allows it to be. While FG has made HPL3 pretty damn powerful, it's still just a scripting language at the end of the day, and it cannot be as powerful or as flexible as a compiled language, particularly one like C++.
(01-31-2016, 02:04 PM)brus Wrote: [ -> ]Only specular bump map and lighting rendering.
What about particle system ?
I'm not sure what you mean by lighting rendering. HPL3 uses light sources and supports specular maps. It also has a fairly hefty support for particle systems, even going so far as to have a dedicated editor for designing them.