…which means…a lot of errors inside GIANTS Editor’s log file.
To be honest, many of these errors aren’t new when game updates are released. Following all the updates since the game was launched, the common error seems to always involve the terrain shader XML that is connected to a map’s terrain mesh – which is a hardcoded terrain mesh in Farming Simulator. And because of the update, all modded AND the vanilla maps for FS25 got affected.
Error: Could not parse GISL program.
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(424): Error: 'getFillIndicesAndWeights' : no matching overloaded function found
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(424): Error: 'getFillIndicesAndWeights' : call : void getFillIndicesAndWeights(texture2D<uint, access::read>, sampler, float2, float2, const literal uniform bool, uint4, uint, out float3, out uint3, out float)
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(424): Error: 'getFillIndicesAndWeights' : - candidate : void getFillIndicesAndWeights(in texture2D<uint, access::read>, in sampler, in float2, in float2, in bool, in uint, out float3, out uint3)
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(424): Error: 'getFillIndicesAndWeights' : - candidate : void getFillIndicesAndWeights(in FS_INPUT, in structXObjectParameters*, out float3, out uint3, out float)
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(422): Error: 'weights' : out parameter was not assigned
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(422): Error: 'indices' : out parameter was not assigned
C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/shaders/terrainShader.xml(422): Error: 'dilation' : out parameter was not assigned
Error: failed compiling shader 'F3183349.00002014-00000000.42020013'
FTG 'C:/SteamLibrary/steamapps/common/Farming Simulator 25/data/maps/mapEU/data/densityMap_fruits.png' max needed CPU instances = 3.203705 MB / 30.375000 MB
The relationship between the terrain shader and GIANTS Editors gets messed up. This time it didn’t cause transparent terrain but also a crash to desktop (CTD) when opening any of the game’s maps in GIANTS Editor 10.0.5. It was one of those days again where the update for Farming Simulator 25 and a update for the editor isn’t released all together.
Now why it has to be like that each time, I dont know.
So far there’s no update for the editor itself after today’s patch1.10.0.0, 8th July 2025.

So to modders, enjoy the summer when you still can 🙂 I myself didn’t find any problems with my mod under development, as it was thankfully working perfectly in Farming Simulator 25 after the patch, while the editor refused it.
My note in the margin to anyone that makes mods for Farming Simulator: BACKUP, BACKUP!
Keep a folder on your storage drives in case your i3D files and SHAPES files gets corrupted. You never know, and hours, weeks and months of intense work gets corrupted. And that’s every modders worst nightmare beside of battling with errors and warnings inside the editor.