Kronecker–Capelli

I dont see option "grandpa moonshine".

How create something adequate and playable.

https://forum.zdoom.org/viewtopic.php?f=7&t=64395&p=1100726&hilit=ray+trace#p1100726 Just a few years.

Gzdoom have ray tracing? Or I should have "ray traced" videocard? Gzdoom repository on github do have ray tracing mentions, but only in third party library.

You wrong and your opinion is invalid. Event horizon is warhammer 40k movie, which shows what happens to the spaceship which enter into warp without protective gellar field and/or allow entities from immaterium enter into spaceship.

Lines around sector 5320 looks like solid walls, and that sector and it lines dont have any tag, it dont contain any monsters inside, etc. Just look at it If they looked like cage I wont say anything because I know how cages works. There are also several similar sectors, through which monsters can shoot you, on this map.

This time its definitely bug. Map or gzdoom, not sure. Map19, linedef 2434, and lines around it, in map editor, warp coordinates -412 -2908 408. Move around warped position to trigger line which reveal spiders and wait a little until they start shoot. There are fully textured wall to the right of you after you warp to position , which in fact doublesided line. It have impassable flags on it, but projectiles fly through it. Reason, there are sector "inside" this lines, sector 5320, which exist for some reason.

According to gzdoom "profilethinkers" console command, map 32 have 5596 scroller thinkers i.e. thing which scroll textures om walls/ceilings/floors/etc. Is there are really that huge amount of scrollers, or its related to this bug https://forum.zdoom.org/viewtopic.php?f=2&t=66672&p=1128474&hilit=scroller#p1128227 In short, line action 254 - "Scroll Wall according to Line Vector", have buggy parameter implementation. Dont count it myself, because I almost sure its bug.

Thats what I do. I already finish it several times and now I play with monster replacement mods, which make some battles too hard.

Bug on map14. Room with red skull opens from the inside only once. If you go in there second time you cant get out without noclip.

I cant play demo version, because something with camera movement cause me dizziness and headache. Does full version have same issue? Or maybe someone here experience same things? After reading topic for some time

How instantly, or almost instantly, change/select and make ready to shoot specific weapon from player tick? Copy pasting some checks in reloading states for all weapons is not a solution for me because it makes future addition of new thing to it a headache. Problem exactly with changing weapon from current to desired. Gzdoom just dont do it as I think it should do it and or lock player in undefined psprite state (you cant change weapon at all unless you drop it) or draw weapon sprite in the center of a screen.

What? You mean that call of duty like version from 20something?

I have a strabismus and its humiliates me. Or at least I feel so. I cant have a car license, I cant play most sports games like football or tennis (because without binocular vision, which is broken by strabismus, I cant define distance to objects in terms closer/further), people are uncomfortable in talking with me face to face (because they dont know how maintain eye contact with me) and similar. So I dont recommend have strabismus, 3/10, avoid this whenever possible.

For doom, no. I know it, as engine, pretty well, know what expect from it and how it handle different situations, i.e. I used to it and play on UV as maximum "legal" difficulty. Besides, there are available cheats/zscript/acs/source code so event nightmare not a problem. But in general, I try all new games on easy/medium, just to see what it can offer to me, i.e. is it worth try to playing it on higher difficulties. Spoiler, most of the games dont.