GP4: Editors & Tools

GP4 Editors, Tools & Utilities

Essential Tools

Title & Author	Description	Links
by Carl_gpgames, Zaz, Öggo	GP4 Memory Access allows you to directly access and edit the game's memory. It allows you to inject new code (DLL's) as well as full compatibility with GPxPatch and GP4 Tweaker. You can save, organize, edit, import and export all kinds of patches and tweaks. GP4 Memory Access does not make any changes to your files (such as gp4.exe). Whatever it does, it only does in memory. This means no more fiddling with a corrupt gp4.exe. GP4 Memory Access might change the way and philosophy you have used to modify GP4 so far. However, it provides full support for known formats (e.g. g3p from Physics Editor or patch.ini from CSM). | Info See also Öggo's library for Individual meshes and Hi res Pitcrews here: Öggo's Dev Corner
Zaz Tools by Zaz	Includes CSM 1.27c (updated Jan 24), TSM, Slimtex and Easywad | Advanced Docs Download
GPxPatch 4.52  by SDI Game Utilities	GPxPatch is a real-time extension for GP3, GP3-2000, and GP4 that includes features like official tv-style information, detailed on-screen race information, a track manager, a carset manager, extended save games, 3D sound, event sounds, internet play, taking screenshots, and more.
GP4 Tweaker 1.0.4.5 by Madman	GP4 Tweaker 1.0.4.5 Cumulative Update 1
Wad Controller 1.1 by Duffer	With Wad Controller you can tweak all files in your wad files.  Info
GP4 Links Manager by Duffer	Info

Modding Tools

Title & Author	Description	Links
GP4 Mesh Tools for Blender v2.2 updated May 2024 by Öggo	Blender Plugins for .gp4 format, pit crews and props and animations. It is now compatible with Blender v 4.1 Info
GP4Builder 2017B by Lo2k	GP4Builder 2017B is the latest tool revision to edit Grand Prix 4 game 3D objects. From tiny objects like helmets to complete new tracks, you can rebuild everything with this tool and preview all the changes in realtime.
Zmodeler 1.07B (with additional filters) by Zanoza	Modeler compatible with GP4 filetypes

Editing Tools

Title & Author	Description	Links
Background Sound Converter  v2.0 by Gilles Salerno	Menu Sound Converter (also works for GP3) | Info
Belini gp4 career v1.1 by belini
CAP Converter 1.0 by Öggo	Here's a little tool developed to convert CSM CAP files to INI files and viceversa. Info
CMagic 4 by Marc Aarts	To put magic data into track files
Collision Mesh Editor 1.0 by Öggo	With this tool, you'll be able to edit the points the game uses to detect car collisions with other objects (other cars or static objects). The editor also allow the end user to import a *.gp4 car mesh and attempt an automatic calculation of the collision points. In the original Collison Mesh file, the points are located in the vicinity of the centre of the respective object bounding box. The automatic calculation attempts to recreate the same situation. The calculation will get the collision points in the vicinity of where they should be and is in no way meant to provide a perfect end result as far as collisions, that will need to be verified in-game for better results. Info
GP4 Failure Editor v1.3 by  Alessandro Carrera
FFB Power 1.1 by  Lo2k	A small tool to tweak the Force Feedback power of your steering wheel up to 127% (instead of 100% through game menu).
GPaediaMaker by petrus	GP4 GPaediaMaker is a tool to help you create gpaedia gps files and menu str files for GP4 with up-to-date season data. Input english data comfortably into three data sheets (driver, team, track) of your favourite calculation program. Using constant files and some language specific files the program builds gps files and str files according to your settings in the "gpaedia.ini" configuration file. Standard gpaedia format is like the original but with userformat files you can change that to your liking. There is support for - Translation into other languages (Deutsch, espanol, Francais, italiano) - Building trackspecific gps files in a CSM mod - Team selection in a CSM mod - Track selection in a CSM mod | Info
GPH Updater by petrus	Enables hi-res menu items | Info
GPI Browser 1.2 by Lo2k	GPI Browser is born in december 2002 when Jon Walton and me decided to find GP4 menu images. We finally found them and Jon was able to afford a first editing possibility through Carset Creator but I never managed how to export/import tga files to replace the files and GPI Browser left aside. Thanks to better knowledge and to other works around file formats, I discovered I was finally able to complete that tool and here it is.
Individual H&W Tweaker 1.1 by Duffer & Öggo	For Non CSM User, you can enjoy the discovery of Öggo, for the use of several shapes of helmet and wheels  Info
Jam Editor 0.52b by Mal Ross	Note that this tool also opens .jip files.
LCD Font Color 2.1 by Duffer & Öggo	LCD Color Font allows to modify some things on the steering wheel Info
GP4 Master by  Jon Walton and Sven Mitlehner	The original editor for GP4
GP4 Physics Editor  by Aubrey Windle
GP4 Physics & Performance Calculator by Carl_gpgames	Info
GP4 Pit & Lap Editor 1.2 by Alessandro Carrera	An utility to edit GP4 pistop strategies.
Records Editor 1.0 by Lo2k	Description  - Edit records stored by the game that can't be edited in the .gps files. - Load and save .rec files created from the game.
GP4 Renamer by Öggo	Quick renaming tool for lods creation (particularly if working with 3ds files)
GP4 Rewards v1.6 by Lo2k, Shutt1e	Description  This tool has been built to change Championship points to match any point system.  Features  - edit points rewards for every 22 cars - compliant with GP4 original and GP4 1.02. - 4 presets for main point systems - change some menu length to display more results - load/save your new point systems  The new 1.6 version brings opportunity to change 2 other menus lengths : Constructors Race Points List and Championship Leaders list (Thanks Shutt1e)
Sample Editor 1.6 by Lo2k	Edit sounds saved in .bnk files
Season Result Tools by petrus	This archive contains two tools made to revive the possibility of printing result files of a GP4 racing season. They are running under Windows, no installation needed. seasonresult - this is for a championship season. It merges two seasons results files, if more than 17 races are used. It gets the missing data for race 17 from the corresponding full race result file and uses the team names given here. You can test it with the included 2015 season example files. For a detailed description read "seasonresult-readme.txt" in the seasonresult folder of the archive. gp4results - this is for results of non-championship races. Using a full race result file for every race, one can build an own championship without the limitations of the championship season mode. This program reads the race result files and generates seasons results, driver championship and constructor championship output.  You can test it with the included example files given in subfolder 2001. For a detailed description read "gp4result-readme.txt" in the gp4results folder of the archive.
Setup Editor by Zaz	Very old but still useful tool by ZaZ to edit setups outside the game.
GP4 Sound by Jon Walton
Starting Light editor 1.0 by Patrick C	It can be used to set custom starting light position for new tracks. PS: Tool is given "as is" so be sure to make backups before all.
Team Editor 3.5 by Lo2k	TeamEditor is an all-in-one editing tool. It is the result of the fusion of CamEditor (Cameras editing), TyrePos & TyreSet (Tyres), TeamEditor (Performances), LiveryEditor (Team Management) and On the Gridline (Performances calculator) and goes further in Team editing and management for GP4.
GP4 Torque Editor 3.5 by Patrick Cloosterman	Torque Editor for GP4.

Helpful Utilities, Tweaks and Patches

Title & Author	Description	Links
Car Physics Missing weight Value Cap by Prblanco	A common bug in recent F1 mods is that cc-cars completely miss the braking point at slower corners (think Monza first chicane), failing to compensate for the extra weight of modern cars. Why that happened remained a mystery, until...I noticed the car weight is stored three times in the GP4.exe, but Physics Editor 1.03 only updates two of them. The third one seems to be linked to braking calculations, and updating it seems to fix the issue. I've made some .cap files (for use with CSM mods, paste in Patch folder) with values for the last few F1 seasons, ready to use, in the link below. These files do not affect and are not influenced by the weight in the .g3p physics file, so you still need those as well. | Info
GP4 D3D8dll Zfighting Stencil Buffer Fix by gplaps	Fix for distant flickering | Info |  Video
No Refueling Animation by 32bobo32 (used in conjunction with) No Refueling Patch by Prblanco	This patches the animations to remove the refueller without CTDs | Info  This enables all cars to start the race with full fuel loads | Info
GP4 Fun by Sergio Poletti	VR Headsets & AI Commentary.  GP4 Fun is a Grand Prix 4 add-on that allows to play GP4 using last generation Virtual Reality headsets and to listen a voice commentary about race context of current player and his competitors, including overtakings, distances between drivers, realtime placements and championship ranking informations.

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