Training-free DMD velocity forecasts accelerate TRELLIS image-to-3D

Training-free acceleration for microsoft/TRELLIS image-to-3D — the exponential (DMD) forecast variant of faster-trellis, in one line of code.

git clone --recurse-submodules https://github.com/Archerkattri/faster-trellis-plus-plus
cd faster-trellis-plus-plus
# TRELLIS deps (CUDA toolchain required); see setup.sh for the full option list.
. ./setup.sh --new-env --basic --xformers --flash-attn --spconv --nvdiffrast
# Deployment-contract runtime (budget/telemetry/manifest):
pip install "hicache-pp @ git+https://github.com/Archerkattri/hicache-plus-plus@master"

Evidence

DMD forecast (this repo)	0.829 F-score@0.05 at 2.76× speedup (−0.010 vs vanilla)
Hermite parent (faster-trellis)	0.825 F-score@0.05 at 2.82× speedup (−0.014 vs vanilla)
Vanilla baseline (uncached)	0.839 F-score@0.05 at 1.00×
DMD margin over Hermite	+0.005 at matched speedup on the deployed interval-3 schedule
Benchmark scope	n = 31 matched objects, Toys4K mesh F-score@0.05, sparse-structure stage
Deployed defaults	SS interval 3, carve ratio 0.25, first-enhance 2, DMD history 6
CPU contract tests	5 tests incl. DMD, run in CI against hicache-pp master

Media

Sampler integration diagram — Sampler integration: token carving and velocity forecasting are controlled separately.

faster-trellis-plus-plus banner — Project banner: faster-trellis++ image-to-3D acceleration.

Install & verify

# CPU contract tests (CI cpu-contract job)
python -m compileall -q trellis tests faster_utils_slat fft token_slat
python tests/test_hicache.py          # Hermite math asserts, expect ALL PASS
python tests/test_adaptive_cfg.py     # guidance math asserts, expect ALL PASS
python tests/test_hicache_contract.py # 5 contract tests incl. DMD, expect 5x [PASS]

Limits

What this release does not claim (from the release notes):

Historical results card "is not a current acceptance result and does not establish a universal speedup, losslessness, or quality ordering" — re-run the manifest command in example_faster.py on the target GPU before making a new claim (README).
CPU contract tests "exercise cache lifecycle and backend selection, not model quality or end-to-end inference" (tests/test_hicache_contract.py).
Release scope is deployment-contract adoption plus "5 CPU contract tests (incl. DMD) in CI against hicache-pp master" (v0.1.1 notes).

Family

Base model	TRELLIS v1, accelerated by the hicache-plus-plus forecast core
Same base	faster-trellis
All 13 adapters	TRELLIS: faster-trellis, faster-trellis-plus-plus · TRELLIS.2: fast-trellis2, hermit-trellis2, hermit-trellis2-plus-plus · Hunyuan3D-2: hunyuan2-plus, hunyuan2-plus-plus · Hunyuan3D-2.1: hunyuan2.1-plus, hunyuan2.1-plus-plus · SAM: sam3d-plus, sam3d-plus-plus, fastsam3d-plus, fastsam3d-plus-plus
External	Paper arXiv:2412.01506 · project page · live demo