UR | Racer 3D Review

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Pose studies

Five exporter blockout studies. These are not yet verified as authentic gameplay sprite poses.

Verified 1994 sprite references

Racer

Guest frame

Original 4bpp pixel index

Authenticating original index evidence…

Checking verified original-source frames…

Source sprite and 3D pose are independent selections. A source-authenticated 3D pose mapping is not yet available.

Experimental source comparison

Optional original-sprite versus experimental-GLB measurements. No authentic pose mapping or camera reconstruction is claimed.

Wheel silhouette hypothesis

A published five-part rig is required. Changes are experimental and never alter the original GLB asset.

On 19 new original 2D silhouettes, the frozen 1.10 wheel/rim hypothesis improved mean IoU from 0.3819 to 0.4149 using the same provisional camera. Neither camera nor pose is source-registered in 3D.

Experimental root lean

Source-world Y rotation (not recovered 1994 motion)

A source GLB is required. This only changes the displayed orientation.

Original-ROM research identified missing projected lean directions across 35 source silhouettes. The grid was fitted post hoc; original 3D camera, contact dynamics and pose pairing are unknown. The control leaves all GLB bytes, part meshes and colours untouched.

Experimental frame hinge

Fork and saddle about wheel axle

A five-part GLB is required. This is not source-registered original animation.

Only the fork/frame and saddle parent transforms turn about the original tire axle. Tire, rim, pedals and 16 material meshes remain unchanged. Source-colour axis and original pose pairing are hypotheses, not approved character motion.

Experimental upper shape

One authored 2026 saddle or frame intervention

Requires the published verified five-part model.

Reversible source-authored 2026 shape preview, distinct from the original 1994 sprite rail. Only one saddle position, frame stretch or saddle contour variation at a time; requires frame hinge 0°. Geometry and GLB files are never saved or modified.

Research wheel spoke volume

One reversible original-2026 wheel support sculpt

Requires the published exact-source 2026 GLB.

One provisional dark hub casing face

Requires the published exact-source 2026 GLB.

2026 model-only, source-authored, reversible. Original manual p15 suggests broad metallic supports but does not establish the 1994 source mesh/camera/spoke count. No game geometry or file is modified.

Direct-drive wheel phase

Experimental wheel/spoke synchronisation

Requires the original SHA-verified 2026 experimental five-part model.

Reversible tire and rim parent rotation only. Pedals, fork, saddle and material meshes stay unchanged. No authentic 1994 wheel timing or likeness claimed.

Experimental continuous crank

Source-authored crank cycle · 0/64

A published source-verified five-part GLB is required. This controls only 2026 authored mechanics.

Each of 64 steps advances the wheel and crank rods by 11.25° while both pedal platforms stay level and orbit their axle. This grid deliberately avoids the old spoke-symmetry alias. It is not observed original-game frame timing.

Experimental model colourway

2026 rig material, independent of original sprite

Only the source-verified published five-part GLB supports temporary model colourways.

P1 red RGB 211/43/47 is a documented provisional authoring proposal, not original 1994 material albedo. This selector never changes the original racer or sprite reference.

Experimental paint allocation

Blue-material wheel/hub counterfactual

Requires a source-verified published 2026 five-part GLB.

Reversible material-only research preview. Original 1994 sprite paint may belong to different parts. No source geometry or release likeness approval.

Camera angles

Mark original printed 2D landmarks locally

These are provisional camera orbits around the 2026 model. No original 1994 camera is recovered.

Inspection

OpenSCAD Z-up conversion Rig nodes Ground / axes Light

Drag to rotate · pinch or scroll to zoom · two-finger drag to pan. Tap parts to inspect their names.

Load model

Open a local .glb model

Loads published current-success candidate when available. Otherwise upload an exported GLB for private review.

Parts

No model loaded

Evidence

Manifest pending.