Comments - Skiner111

I completed Doom and Doom 2 games with Doom(HD texture pack) and didn't notice such problems, maybe you should try other texture pack.
DOOM (HD Texture pack) includes DHTP Texture pack or DOOM (Alternative HD Texture pack) includes AltDHTPv1.3 Texture pack.

Yes i wrote that because it unfortunately not fully compatible with brutal doom.

You can use it with Zandronum but download DOOM (Alternative HD Texture pack) and you should't use R_Hud_Stuff_v1.pk3 and NeuralUpscale2x_v0.95.pk3 because it will work incorrectly with Zandronum.

JFO.pk3 files allow to change game interface and includes HD fonts, menu, backgrounds, title pictures and other screens for Doom,Ultimate Doom,Doom 2,The Plutonia Experiment,TNT: Evilution,SIGIL.

Create txt file and paste this,don't forget change path to your own:
gzdoom.exe
-file
path=D:\Vitalik\Games\GZDoom x64\Wads\SIGIL_COMPAT.wad
path=D:\Vitalik\Games\GZDoom x64\Mods\DHTP.pk3
path=D:\Vitalik\Games\GZDoom x64\Mods\HRRP.pk3
path=D:\Vitalik\Games\GZDoom x64\Mods\JFO_SIGIL_COMPAT.pk3
path=D:\Vitalik\Games\GZDoom x64\Mods\R_Hud_Stuff_v1.pk3
path=D:\Vitalik\Games\GZDoom x64\Mods\NeuralUpscale2x_v0.95.pk3
Rename txt to bat and run it should work.

DOOM (HD Texture pack) and DOOM (Alternative HD Texture pack) contain only mods which can be loaded with gzdoom,zdoom source ports.
GZDoom x64 (Alternative HD Texture pack) and GZDoom x64 (HD Texture pack) contain installed mods and source port for x64 systems. For x32 use version without x64.
Difference between HD Texture pack and Alternative HD Texture pack only in different packs of hi res textures.

No

I found a way to load HD Texture pack and Alternative HD Texture pack with Sigil_Compat.wad without using edited Sigil_Compat.wad which i created.
In gzdoom.ini find [Global.Autoload] and add path to Sigil_Compat.wad and mods
Example:
[Global.Autoload]
path=D:\Games\GZDoom x64\Wads\SIGIL_COMPAT.wad
path=D:\Games\GZDoom x64\Mods\DHTP.pk3
path=D:\Games\GZDoom x64\Mods\HRRP.pk3
path=D:\Games\GZDoom x64\Mods\JFO_SIGIL_COMPAT.pk3
path=D:\Games\GZDoom x64\Mods\R_Hud_Stuff_v1.pk3
path=D:\Games\GZDoom x64\Mods\NeuralUpscale2x_v0.95.pk3
When you will run Gzdoom with Doom.wad it will load SIGIL_COMPAT.wad and mods without any problem.

You can see comparison here
Imgur.com

The enemies and the player sprites are slightly different from original.
You can watch the comparison video where used Doom Neural Upscale and original sprites.

It does not work with Brutal Doom

You could just download the addon, and install mods wherever you want and how you want. But this file was created to make it much easier for people, since everything is already installed and you just need change folders path where files located

Do you read Readme?