New port Doom 3 (dhewm3)

RussellB

@russellb So I've got Doom 3 and Doom 3 RoE running well. I recompiled the cdoom.so on the RPi 4 and when I try to startup that mod it gets to the selection screen for skill level then crashes. Has anyone had success getting that to work. I can provide my cdoom.so if need be.

quicksilver

@russellb which mod are you trying to run? Only certain ones work with dhewm3. See here: https://dhewm3.org/mods.html

RussellB

@quicksilver I just wanted to get Classic Doom 3 running. I compiled the custom 'dll' (cdoom.so) and copied the files as instructed. Maybe I did it wrong?

I copied the cdoom files into their own directory called cdoom, following the instructions on the dhewm3 site.

quicksilver

@russellb iirc you'll also need to compile the custom SDK in order for the mod to work https://github.com/dhewm/dhewm3-sdk/tree/cdoom

I have cdoom running as well as a few of the other mods listed on the site. It's been a while since I compiled them so I'm a little fuzzy on the details. I do remember that when I first added cdoom mod to the game that there were some visual glitches because I didn't compile the SDK for it at first. But I never had crashing issues.

RussellB

@quicksilver Are you running ona Pi4 or Pi3?

quicksilver

@russellb I use it on a pi 4. Dhewm3 won't work on a standard retropie install on prior pi models because they don't support desktop OpenGL. This requirement is also why we have to run dhewm3 using X on the pi 4.

Even if you could get the game to run on a pi 3 I shudder to think of how poor the performance would be. To have any kind of performance on even an overclocked pi 4 you still need to run the game at the lowest resolution and graphics settings.

RussellB

@quicksilver I'm running it on an overclocked Pi4 and the performance is good enough to play, now that I've programmed xboxdrv to support it. I'll spend a little time debugging the crash this weekend to see what i come up with.

quicksilver

@russellb have you played doom 3 before? This is my first time playing it and it seems the developers were really obsessed with jump scares. The game plays a bit like a haunted theme park ride.

RussellB

@quicksilver I started playing it again on the Nintendo Switch and wanted to see if it was available for my Pi build. Here's a weird one... After it got past the Intro it did an autosave. When I load the autosave, the game starts. If I try to start it with a new game, it crashes.

Evan

Trying to install this on an rpi4 with aarch64 kernel, but it fails with the following in the log: -

-- Setting -DD3_ARCH="aarch64" -DD3_SIZEOFPTR=4 -DD3_OSTYPE="linux"
CMake Error at CMakeLists.txt:118 (message):
CMake thinks sizeof(void*) == 4, but the target CPU looks like a 64bit CPU!

CMake Error at CMakeLists.txt:119 (message):
If you're building in a 32bit chroot on a 64bit host, switch to it with
'linux32 chroot' or at least call cmake with linux32 (or your OSs
equivalent)!

-- Configuring incomplete, errors occurred!

Has anyone any idea how to set the cmake flags to 32bit in the dhewm3.sh script?

RussellB

@evan I ran into the same thing. I ended up compiling it on a different Pi image and then copying it over. You could also go into the make file and remove that warning and then recompile to see if that works.