JSTrackViewer - Online 3D track viewer

[Fila]

How about now RuDeE?

I would love to work more on Traxx, simply to make my life easier too, but right now I'm too knee deep with the engine and the AI Bots work is proving to be significantly slower than I hoped. I've been at it for 5 days now and I'm still nowhere near having a decent model. Have something that barely beat the original but that's not really a high bar. lol

[OG_RuDeE]

Looking great Kmaster!

That's interesting about the Evo checkpoints, because they do show in the object editor of Tracked4. (Yes, screenshots work now, Fila. Thanks!)

4x4 Evo2 Editor 9_9_2026 6_25_45 AM.jpg

In Tracked3, I think they even have a nice rainbow shine to them.

[Kmaster]

thanks RuDeE
well that looks a lot better than tracked2 I'll see what I can do regarding Evo to MTM2 conversion. Now with the expanded limits having that many objects on the map wouldn't be an issue. Also a SMF to BIN converter would be nice. Evo vehicle support for JSTruckViewer is coming also (and SMF support for JSPOD and KPOD).

JSTrackViewer v0.96: sun controls, tidier sidebar, smoother terrain

• New Sun panel Every one of these games stores where the sun sits in the sky, and the viewer now reads it and tells you: the compass direction and how high above the horizon it is. Aztec is lit from the west, Laguna Seca from the south, Pikes Peak from the south-west.
  You can also move it. Two sliders swing the sun around the compass and raise or lower it, so you can see a track under a low morning sun or at midday, and Restore Track Sun puts it back where the track wants it. The Sun and Gamma sliders moved into this panel too.
• Fixed: the sun was on the wrong side on some tracks The north–south part of the sun direction was being read backwards. Most tracks weren't affected because their sun is due east or west, but 13 of the 17 CART Precision Racing tracks and a handful of Terminal Velocity levels were being lit from the north when they should have been lit from the south. They look right now.
• Terrain shading is much smoother Hillsides used to light up in hard squares, one flat shade per terrain tile, which made everything look faceted and blocky. Slopes now shade smoothly across the whole map, so hills read as hills. This applies to every game.
• Collapsible sidebar Click any panel heading to fold it away. Handy on tracks that fill the sidebar with View Options, Sun, Track Data and Stats all at once. The navigation map at the top stays put, since that's the one you're actually clicking on.
• The browser tab now says what you're looking at (JSTrackViewer - Pikes Peak (EVO2)) which helps when you have several open at once.
• The Wireframe option now covers Hellbender's underground caverns as well, not just the objects in them.

https://juanputrerasm.github.io/JSTrackViewer/

[Kmaster]

work in progress: test drive mode

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[Ford-chan]

Ok... Now the community is cookin' here!

Would this test drive mode somehow be able to mimic MTM2's physics/driving model as well? It's probably easier said than done, but would be interesting to see nonetheless.

[Kmaster]

What's new in JSTrackViewer v0.9.7

Test Drive mode

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You can now drive a truck around the track you are viewing, from any of the supported games

Load a track as usual, then use the new Test Drive panel to load a MTM1/2 truck POD. The panel lists every truck the archive contains, and clicking Drive puts the selected one on the starting grid. Physics mimic MTM2 truck behaviour.

Controls: Up/W throttle, Down/S brake, Left/Right or A/D steer, Space handbrake, V to cycle cameras, R to reset to the start. A gamepad works too. The controls hint at the bottom of the screen switches to the driving controls while you drive, and back to the flying controls when you stop.
Live readout: speed, gear, engine rpm and the current camera are shown in the panel while driving.
Lap timing: on tracks that have checkpoints, the panel also shows your lap number, which checkpoint is next, your current lap time and your best lap. Tracks without checkpoints (drag strips, stadiums) simply do not show those rows.
Show hitboxes: draws a wireframe around everything the truck can actually collide with. Useful if you hit something that is not there, or drive through something that should be solid.

Switching tracks or loading a different truck parks you automatically, and the truck stays loaded so you can drop straight into the next track.

Better looking terrain
Smooth textures: new toggle for smooth or sharp (pixelated) terrain and object textures.
2px overlap: new toggle that switches between the full texture tile and the slightly cropped version MTM2 uses. MTM1 stock tracks really benefit from disabling this, I bet Cale is going to like this feature.

Shadows
The sun now casts real shadows from objects and trucks onto the terrain and the road surface. Sun light and shadows are separate checkboxes, so you can keep the lighting and turn shadows off if you prefer.

Sidebar reorganised
The old View Options panel had grown to nineteen checkboxes, so it is now split:

Markers holds the overlays: grid, course markers, checkpoints, nav points, CP markers, trucks, tunnels, powerups, underground, wireframe.
View Options holds what the scene actually draws: terrain, textures, objects, ground boxes, collision boxes, racetrack, water, background, animated textures, plus the new smoothing, overlap, sun and shadow toggles.
Several panels now start collapsed so the sidebar opens tidier, and every panel still collapses by clicking its heading. As before, controls only appear when the loaded track has something for them to do.

Other fixes
-Tracks with more than one background model now load and display all of them, instead of just the first. Laguna seca looks great.
-Checkpoint models are now off by default on MTM, Evo and CPR tracks, where they cluttered the view.
-Long status messages wrap instead of running off the screen.

https://juanputrerasm.github.io/JSTrackViewer/

[Kmaster]

random stuff:

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Captura de pantalla 2026-09-18 a la(s) 5.10.34 a.m..jpg

Captura de pantalla 2026-09-18 a la(s) 5.19.32 a.m..jpg

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[Ford-chan]

Test drive works decent, yet surprisingly well, and heck, those test drive physics, though not perfect, I can kind of imagine what my wishlist idea of a physics setting within the Garage menu of MTM2 would look like in that similar fashion. From Classic Circuit/Rally physics, to more modern and realistic Modern physics for such disciplines like Drags and Freestyle.

That being said, would it somehow be possible in the future to link JSTrackViewer to your local "monster.exe" in whatever you have it installed? Basically, load track per usual within JSTrackViewer, select truck within the Test Drive section, click Drive, from there whatever track and truck you have selected, the "monster.exe" boots up with it, and you can Free Roam in game with the track and truck you've selected (same with other TRI games).

It's probably easier said than done, but would be incredibly mind blowing to see nonetheless.

[Kmaster]

JSTrackViewer v0.9.8

Captura de pantalla 2026-09-25 a la(s) 1.45.46 a.m..jpg

Test Drive on Laguna Seca Preview: youtube.com/watch?v=9wUhHs4VzQM


Changelog
CART Precision Racing support

• Terrain heights now keep their full precision. CPR stores heights with 1/16 ft steps; the viewer used to round them to whole units.
• Fixed the CPR vertical scale. Terrain, the road layer and objects were drawn at half height against the 3D models, which left objects half buried and made the road look like it floated. Objects now sit on the ground as they do in game.
• Terrain cells now use the game's alternating (checkerboard) triangle split, which removes terrain spikes poking through walls on slopes.
• Closed circuits are now joined across the start/finish line, filling the missing piece of road at the start line.
• The road layer now stops at its walls, as in game. Sand strips outside the walls are no longer drawn.
• Wall panels are now half as tall, matching what is rendered in-game.
• Fixed shadowed road pieces showing incorrectly.
• Test Drive: the CPR road surface now carries the truck and the walls and catch fences stop it.
• Test Drive: the truck now starts and resets on the road surface instead of the ground below it.

Camera and interface

• New Speed slider under the minimap (5% to 100%) for arrow-key and A/Z flying speed. Defaults to 25% of the old speed and is remembered per browser.
• The version number is now shown in the header, and the title links to the GitHub repository.

All games

• Rotated MTM2 models fixed: upside-down or tipped models are now turned about their true origin, as MTM2 does.
• Off-centre models placed correctly: models whose origin isn't in the middle of their shape are no longer shifted sideways.
• Drive mode matches: collisions use the same placement as the drawing.
• Fixed very dark texture palettes being shown about four times too bright.

Documentation

• README updated: CPR road layer behaviour, Test Drive limits, the Speed slider, and related projects (JSMTM2Converter added).
• CPR reverse-engineering docs updated with the height scale proof, loop closing, wall clipping, terrain split and palette findings.

https://juanputrerasm.github.io/JSTrackViewer/

And to answer Ford-chan question: it's impossible for webpages to execute .EXE files, it would be a huge security flaw. Maybe if Fila creates a MTM2 protocol for browsers and adds support for track & truck loading from parameters. Still quite a workaround

[Kmaster]

JSTrackViewer v0.9.9

Terminal Velocity, Fury3 and Hellbender

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• New sky: the sky is now the game's own flat textured ceiling above the world instead of a dome, coloured per level through its sky palette exactly as the engine does it. Space levels get a star field.
• New fog: the world fades into each level's horizon colour. Fog follows the Distance slider, so you can dial in the short visibility these games had.
• Sky and Fog toggles under View Options (they replace Background on these games).
• Correct object scale: TV/F3 models were drawn at 75% of their size. They now match the game, in their true proportions.
• Correct object placement: objects now stand at their exact spot inside a terrain square and sit on the ground under them, instead of being snapped to the middle of the square.
• Named powerups: Laser, Plasma, Shield Restore, AfterBurner, Energy Can and the rest, instead of a bare type number.
• Hidden powerups marked: bunkers and other objects that always drop a powerup are now marked ("Shield Restore in BUNKER").

Weather, sky and lighting (MTM1, MTM2, CPR, 4x4 Evo 1/2)

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• Weather: Clear, Cloudy, Dusk or Night, each with its own sky (based on Fila's HD remaster for CP3) and light. At Night the moon casts faint shadows. Your choice is remembered between tracks.
• Sun, moon and lens flare using MTM2's flare layout, fading when terrain or objects cover the sun. Lens flare has its own toggle.
• Better shadows: cascaded shadow maps out to the full view distance, sharp up close. Trees (including 4x4 Evo vegetation) cast shadows and the Test Drive truck is shaded by them.
• MTM lighting and view: MTM1/MTM2 terrain is drawn at the brightness its .LTE file bakes in, and the free camera uses MTM2's field of view.

Courses and markers

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• Every course gets its own checkbox under Markers, labelled and coloured to match its line: the main course plus each AI line on MTM, MTM2 and 4x4 Evo.
• CART Precision Racing: checkpoints labelled by purpose (pit entry, pit speed limit, start/finish, lap gates), and its five courses named: three AI racing lines, the pit road lap and pit row.
• 4x4 Evolution: the computer drivers' recorded laps are shown as AI line courses, and the corners between a course's straight runs are drawn back in along the roads.
• MTM1 checkpoint banners are drawn as scenery; only the closing CKBOX trigger waits behind the Checkpoints toggle.
• The CPR road is always drawn over the terrain, never with ground poking through it.

Test Drive

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• Truck lights: MTM2 trucks carry their own headlights, roof light bar and beacons, which light the track ahead so you can drive at Dusk and Night. L toggles them; brake and reverse lights work too.
• Swap to another truck from the list while driving, keeping your speed, heading, gearbox and camera.
• The minimap marker turns green and follows the truck. Double-click the minimap to move the truck there.
• CPR Cone and Sign objects borrow MTM2's weights and get knocked aside.

Captura de pantalla 2026-09-26 a la(s) 6.55.00 a.m..jpg

Open JSTrackViewer | GitHub