This full length "37¾ Mile Isle Of Man Mountain Course" was built by Jim Pearson entirely from scratch over a period of 14 years from 2005. It is a totally different track to his much earlier "Abridged / Shortened" 20 km version.
It was released by him for the simulation Grand Prix Legends [ GPL ] in June 2019.
Jim's original PDF Readme , release files and three release videos are located here;
The release thread for GPL is located here;
37¾ Mile Isle Of Man Mountain Course For Gpl Released - GPL-"I just want to talk about all things GPL"
Page 1 of 11 - 37¾ Mile Isle Of Man Mountain Course For Gpl Released - posted in GPL-"I just want to talk about all things GPL": 37¾ mile Isle Of Man Mountain Course for Grand Prix Legends RELEASE THREAD A long time in development; too long in fact for me as well as yourselves, but here it...
Note: This track replicates the actual roads existing before Windy Corner and Brandish were opened up with much bigger radii in 2006.
Converted to rF2 by S.Victor(Xiang) with assistance from Corti(Andres).
I approached Jim in February 2020 and agreed to the conditions set out in his track Readme PDF [ See above ] He then gave me written permission to convert his track to rF2.
Amongst these conditions were assurances that the permission being granted would be limited to rF2 in this case and that no income would be derived or sought for the conversion.
Jim monitored development of this conversion throughout, providing some useful assistance as required. He has asked me to include his assessment of my work as follows;
" When approached by Xiang earlier this year, I was encouraged to grant him permission to convert my 37¾ Mile Isle Of Man Mountain Course GPL track to rF2, as he appeared to me to have the right combination of skills, dedication, high standards and respect for the original work that I was looking for.
My faith in him has been richly rewarded, as he has persevered to overcome many of the real technical difficulties inherent in translating a very complex and lengthy GPL track into a quite different rF2 rendering and surface model.
He has surpassed my expectations and I believe the results display and drive as well in rF2 as they do in GPL, the sim it was originally tailored to. I hope you enjoy the fruits of our collective labours and show due appreciation of Xiang's work on your behalf.
Credit is due!
October 2020. "
Length: 60.72 KM / 37.75 Miles
- Mountain Course,
- Mountain Mist, [ Which is the same track, but has patches of Ground Fog and Mountain Mist replicating two options available in the GPL track. ]
Max vehicle: 48
Real road (0.9-1.0m density) & 2.7%(10cm) crossfall
Hundreds street lights
Out lap timing support
Notes & Recommended Settings
Jim's original PDF Readme is highly recommended for a complete view and understanding of the original GPL track and design choices.
Draw Distance (similar to LOD):
IOM is designed specifically around Draw Distance for GPL cockpit view. Draw Distance(LOD) is important for optimization as well as showing or hiding road and scenery at proper designed distance.
RF2 conversion has kept same principle in mind. It means player with view other than cockpit may find that scenery or road sections appear too soon or in the air, due to the different camera position or LODMultiplier value. The recommended way to enjoy this track is through cockpit view.
Note, if a track piece appears in the mid of air along the forward driving direction while using cockpit view, it means the car mod is set on a higher LODMultiplier value than default 1.0 value. Additionally, the default value for Swingman view is 2.0, which also enables you to see further than the track LOD is designed for. However there is no way to enforce LODMultiplier value from track itself, the only fix is by editing car mod camera file.
Out lap timing:
The track supports immediate out lap timing. Timing starts when car exit pitlane.
It is important to note that at the beginning of each new session, driver must wait until session timer starts to count down (except race session), and only then click RACE button to go out of garage, otherwise timing won't work. Due to the length of the track and the special out lap timing mechanism, extra caution is needed for not over speeding in pitlane (60KPH). Receiving a penalty and then jumping back to garage will result immediate DQ after you exit pit the third time (everytime you exit pit from garage counts as a lap).
Road surface & Real road:
The track surface has been re-constructed with real road in mind, with 8 square subdivision across 7.4 meter wide surface. The new surface also includes around 2.7%(10cm) crossfall for extra realism.
Due to complexity and extreme length of the track, enabling real road will result longer loading time.
It is recommended to set weather to Default weather, or any Cloudy weather for varied illumination and immersion.
This track uses many skybox type of background, and the weather file has already set correctly to avoid white skybox bug.
However, in case of white skybox bug appears, you can fix it by: close RF2 first, then delete any AAIOM_MCs.wet & AAIOM_MISTs.wet file under “rFactor 2\UserData\player\Settings\3775mile_Isle_Of_Man” folder.
Note: the .wet file only affects Scripted Weather, and possible to manually editing 4 haze scale value.
The overly darkness of shadow was a concern from the beginning. With the new IBL shader, and a special IBL setting, soft shading and natural looking shadow is finally achieved. Player can still find some hardshadow (Jim created for original GPL version) which baked into road texture, and we feel that it is good to keep them.
Thanks to Corti's assistance, over 200 light sources are placed at various locations, for extra immersion and challenging night racing.
Collision is based on terrain objects and special invisible objects, which covers most of the area. However, they will not save cars from any high speed crash.
In original GPL version, 2D flagger acts as marshal, and it was recreated in RF2 through digitalflag and startlight for extra nostalgia of the GPL era.
Billboards & Xboards tree:
Due to the different way of rendering between two sims as well as complexity, only a small amount trees were converted to Billboards.
Textures & Material:
The goal of this conversion has always been a faithful translation of original track, and thus most of assets that brought from the original version were unchanged. All road texture has been AI-upscaled for better resolution. New IBL shader is also used for 4000 materials, in order to achieve best results and preserve all the original texture details.
Cameras is converted directly from GPL, which are mostly static cameras, and works exactly same. However in order to fix an unknown crash bug with "Spectator Camera hotkey", we’ve converted all static cameras to tracking cameras.
Due to the track length, fuel estimate on setup page is not accurate.
Signpost Corner gap:
If you find yourself driving in mid air beyond the sand bag barrier of Signpost Corner, do not worry, it is not a bug.
This is a special design, as it is in GPL, in order to blend track surface smoothly with the skybox from afar.
Thanks to Jim's extensive assistance and support, as well as every friends' help!
Also posted at 397 forum.