A tool to handle .w32 and .bgm files in FlatOut games

For a quick guide on how to get started with the tool, check out the examples & tips.

This tool is currently capable of:

• Parsing and recreating the formats from memory
• Exporting cars and tracks to .fbx
• Exporting cars and tracks from Rally Trophy and Tough Trucks to .fbx
• Converting FlatOut 2 tracks to FlatOut 1
• Converting FlatOut: Ultimate Carnage cars to FlatOut 1 and 2
• Editing tracks in FlatOut 1, 2 and Ultimate Carnage
• Importing new tracks into FlatOut 1, 2 and Ultimate Carnage
• Importing vehicle models into FlatOut 1, 2 and Ultimate Carnage

Thanks to Gulbroz for their existing work on this format, it was a great jumping-off point.

Usage

• Enter a commandline prompt, run FlatOutW32BGMTool_gcp.exe (filename) with the arguments you'd like to use
• The file will now be analyzed and processed by the tool
• Enjoy, nya~ :3

W32 Arguments

• -create_fo1_w32 - Exports an .fbx into a FlatOut 1 track w32
• -create_fo2_w32 - Exports an .fbx into a FlatOut 2 track w32
• -create_fouc_w32 - Exports an .fbx into a FlatOut: Ultimate Carnage track w32
• -export_fbx - Exports the map into a viewable .fbx file
• -export_w32 - Exports the map into a .w32 file (this should yield an identical file if there are no additional arguments, if it doesn't then file a bug report!)
• -export_text - Exports the map into a human-readable text file
• -text_streams - Exports all vertex and index buffers into text, huge filesize and time cost!
• -text_materials - Exports all material data into text, including shaders and some unknown metadata
• -text_streams_fouc_offseted - Exports vertex buffers into text with their surface offsets already applied
• -text_streams_fouc_normalized - Exports vertex buffers into text as normalized floating points
• -text_streams_fouc_int8 - Exports vertex buffers into text as int8 arrays
• -remove_object_dummies - Creates a new .w32 file of the map with all objects and object dummies removed (e.g. menu cameras in FOUC)
• -remove_props - Creates a new .w32 file of the map with all props removed
• -enable_all_props - Creates a new .w32 file of the map with all props visible (BugBear left a lot of props hidden in each track)
• -disable_car_collisions - Creates a new .w32 file of the map with car-to-car collisions disabled
• -convert_to_fo1 - Creates a new .w32 file of the map that can be loaded by FlatOut 1
• -skip_hidden_props_a - Only exports the props from track variant A into the .fbx file
• -skip_hidden_props_b - Only exports the props from track variant B into the .fbx file
• -skip_hidden_props_c - Only exports the props from track variant C into the .fbx file
• -export_bvh_nodes - Exports BVH culling zones into the .fbx file
• -empty_bvh_gen - Takes a track_bvh.gen file and generates a new one without any culling, do not use unless you get issues with the autogenerated file!
• -empty_plant_vdb - Generates an empty plant_vdb.gen, removes all grass from the map
• -import_moved_props - Imports moved prop positions from an .fbx file, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_moved_props
• -ungroup_moved_props - Ungroups moved props if -import_moved_props is enabled, can prevent unwanted physics behavior
• -import_cloned_props - Imports new cloned props from an .fbx file, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_cloned_props
• -import_all_props - Imports all props from an .fbx file and deletes the original w32 ones, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_all_props
• -import_all_object_dummies - Imports all object dummies from an .fbx file and deletes the original w32 ones, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_all_object_dummies
• -import_surfaces - Imports surface meshes from an .fbx file if they have the suffix _export in their name, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_surfaces
• -import_all_surfaces - Imports all surface meshes from an .fbx file, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_all_surfaces
• -import_and_match_all_surfaces - Imports all surface meshes from an .fbx file and matches them up to any valid w32 surface, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_and_match_all_surfaces
• -import_and_match_all_meshes - Imports all meshes from an .fbx file and matches them up to any valid w32 surface, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_and_match_all_meshes
• -clear_old_materials - Removes all original materials from the w32 before importing the ones from the .fbx, has no effect unless -import_and_match_all_surfaces is enabled
• -no_material_reuse - Makes imported meshes not use any original w32 materials, instead always importing new ones from the .fbx
• -no_tree_hack - Disables the adjusting of normal vectors for tree shaders in Ultimate Carnage
• -import_deletions - Deletes surfaces and props that have been deleted from an .fbx file, usage: FlatOutW32BGMTool_gcp.exe (w32 filename) (fbx filename) -import_deletions

BGM Arguments

• -create_fo1_bgm - Exports an .fbx into a FlatOut 1 car bgm
• -create_fo2_bgm - Exports an .fbx into a FlatOut 2 car bgm
• -create_fouc_bgm - Exports an .fbx into a FlatOut: Ultimate Carnage car bgm
• -export_fbx - Exports the car into a viewable .fbx file
• -export_bgm - Exports car into a .bgm file (this should yield an identical file if there are no additional arguments, if it doesn't then file a bug report!)
• -export_text - Exports the car into a human-readable text file
• -text_streams - Exports all vertex and index buffers into text, huge filesize and time cost!
• -text_materials - Exports all material data into text, including shaders and some unknown metadata
• -text_streams_fouc_offseted - Exports vertex buffers into text with their surface offsets already applied
• -text_streams_fouc_normalized - Exports vertex buffers into text as normalized floating points
• -text_streams_fouc_int8 - Exports vertex buffers into text as int8 arrays
• -convert_to_fo1 - Converts the car from the FlatOut 2 or Ultimate Carnage format to the FlatOut 1 format
• -convert_to_fo2 - Converts the car from the Ultimate Carnage format to the FlatOut 2 format
• -no_rim_alpha - Disables alpha for the rim texture on cars, useful for UC -> FO2 ports
• -force_rim_alpha - Forces alpha for the rim texture on cars, useful for FO2 -> UC ports
• -force_tire_alpha - Forces alpha for the tire texture on cars, useful for FO2 -> UC ports
• -make_double_sided - Clones and flips every mesh to make the model double-sided

4B Arguments

• -export_bmp - Exports the .4b file into a BMP image

Other Arguments

• -log_warnings_only - Only prints errors and warnings into the console
• -log_errors_only - Only prints errors into the console
• -use_vanilla_names - Exports the files as their original names, e.g. track_geom.w32, track_bvh.gen

Last updated: 2025-08-01 23:25