Weird hatched, flickering cars

[Doktor von Zwitter 1]

So I don't know how to fix this. I got a new computer yesterday, set up SimCity 4 on my GOG account and then started noticing something... off about the car graphics and other animations. I checked the config txt and indeed it was using the  motherboard graphics rather than my actual graphics card. I tried the dgVoodoo fix, but that only made it where the game didn't work at all, so I don't know what to do.

Anyone have any bright ideas?

Spoiler

Log generated on 2/15/2024, 14:28

Flags
-----
hardwareDriver = true
DXT = true
fullscreen = true
MMX = true
FPU = true
backingStore = true
forcedFSAA = false

Strings
-------
userName = Kojir
appName = SimCity 4
version = 1.1.641.0
osVersion = Windows NT 5.1
computerName = RIPLEY
CPU = GenuineIntel
sglDriverName = DirectX
sglDriverVersion = 2.0
driverName = igdumdim32.dll
driverVersion = 0.0.0.0, GUID: D7B78E66-D928-11CF-F373-8810AEC2CD35
cardName = Intel(R) UHD Graphics
cardVersion = Vendor: 8086, Device: 9a68, Board: 30881043, Chipset: 0001
cardIdentity = Intel(R) UHD Graphics
soundDriverName = {0.0.0.00000000}.{ad46e587-8399-47cd-8332-4bd3972472c2}
soundCardName = Speakers (Realtek(R) Audio)
buildType = Release

Numbers
-------
cpuSpeed = 2687
memory = 1024
freeMemory = 936
screenWidth = 800
screenHeight = 600
screenBPP = 16
videoMemory = 128
textureMemory = 128
textureStages = 4
bogoFPS = 0
bogoMPPS = 0

Rules
-----
applying Sound
applying high sound detail
applying City Detail and Day/Night Settings
applying City Detail and Day/Night Settings>
applying high computer power
  option 9 = 3
  option 13 = 1
  option 15 = 3
applying Texture Quality and Building Variety Settings
applying Texture Quality and Building Variety Settings>
applying high memory
  option 3 = 3
  option 14 = 3
applying Variable Speed Automata
applying default
  option 10 = 1
applying Standard hardware
  option 0 = 1
  option 1 = 1
  option 2 = 1
  option 4 = 0
  option 5 = 1
  option 8 = 1
  option 7 = 1
  option 6 = 1
  option 11 = 0
  option 12 = 0
applying Standard hardware>
  option 1 = 2
applying Standard hardware>>
  option 0 = 2
applying Standard hardware>>>
  option 2 = 2
applying Standard hardware>>>>
  option 4 = 1
applying Standard hardware>>>>>
  option 11 = 1
applying Two stages
applying Lotsa vidmem
applying Poor color cursor
  option 7 = 0
applying Not Slow GeForce

Options
-------
Visual Effects       current:   3 recommended:   2
Cars/Sims            current:   3 recommended:   2
Shadows              current:   3 recommended:   2
Atmospheric effects  current:   1 recommended:   1
Water effects        current:   1 recommended:   1
Software/Hardware    current:   1 recommended:   1
Cursor               current:   1 recommended:   0
VariableSpeedAutomata current:   1 recommended:   1
Translucent UI       current:   1 recommended:   1
Graphic Detail       current:   3 recommended:   3
Building Load Speed  current:   3 recommended:   3
Texture Quality      current:   3 recommended:   3

Properties
-------
forcesoftwaredriver = false
renderdynamicview = true
renderstaticview = true
renderwatereffects = true
rendercloudsandfog = true
forcepointsampling = false
forcebilinear = false
forcenoalphablend = false
forcenoalphatest = false
rendershadows = true
renderdecals = true
usesecondstage = true
forcedebugtexture = false
renderparticleeffects = true
renderflorashadows = true
renderterrain = true
showupdateregions = false
usecursoreffects = true
drawlottextures = true
drawlotfoundations = true
drawlotwalls = true
forcetexturerepeat = false
usescreenshake = true
renderui = true
useupdaterectclipping = true
usevertexbuffers = true
showboundingboxes = false
useoverlayculling = true
rendersnapshot = false
noaddsigned = false
nopartialbackingstorecopies = false
usescreenflash = true
renderautomata = true
preferopaque = false
displayalertborders = true
drawlotopaquetextures = true
useviewcleanup = false
doautozoomandrotationchanges = true

viewoffsety = 0
viewoffsetx = 0
texturebits = 32
lodoffset = 0
shadowdebug = 0
maxparticlestarget = 10000
particlelodoffset = 0
effectprioritylevel = 5
backingstoremaxzoomall = 5
backingstoremaxzoombuildingsprops = 5
backingstoremaxzoomterrain = 5
backingstoremaxzoomflora = 5
shadowquality = 2
minvehiclezoom = 3
minpedzoom = 4
cursortype = 1
depthoffset = 2
debugtexture = 0
dirtyrectmergeframes = 4
sounddetail = 2
buildingvariety = 2
buildingloaderspeed = 1
modellodoffset = 0
stringtexturecachesize = 1024

particleeffectslod = 5
splattexturescale = 50
texbindmaxfree = 8
particledensity = 1
particledamping = 0
particlescale = 1
lightingupdatedelta = 0.0001
shadowmodelthreshold = 12
demolishmodelthreshold = 12
rendermodelthreshold = 6
rendermodelthresholdscroll = 40
particlesizethreshold = 300
maxvehiclepct = 1
maxpedpct = 1
opaqueuialphavalue = 0.55

 

 

[Doktor von Zwitter 1]

Okay, I figured out a fix. I set the game to software as opposed to hardware and everything looks as solid as they're supposed to. Dunno why that wasn't a suggestion.

[Ulisse Wolf 4,412]

The only problem that software rendering is not recommended to use as it does not allow for corect rendering in HD and then you get a CTD with HD mods.  Although this tutorial is outdated it remains useful on how to corectly configure SC4 with modern hardware (Although it is an Italian tutorial) also follow this guide on mods that allow you to correct this problem

 

 

[rsc204 21,808]

Software rendering (not on by default), is really only included as a ‘when all else fails’ option. DirectX rendering is the best way to enjoy the game and it certainly seems to have solved the graphical issues.

However, i note you are running the game at 800x600 resolution but you have an Iris iGPU, so it’s very unlikely your display can’t go higher. The game looks gorgeous in Full HD, but it really depends on what resolution your system supports. To enable widescreen resolutions, you need to do some manual tinkering adding the following commands to the shortcut:

-CustomResolution:enabled -r1920x1080x32

Note the parts in Bold should be replaced with your desired resolution. Using the same resolution as Windows is usually optimal. Some non-standard ones may not be supported and anything too large (basically above full HD), will require using a DXWrapper due to DirectX limitations imposed on SC4.