test: --asset-bundles-url override for AB validation (DO NOT MERGE)

[LautaroPetaccio]

⚠️ DO NOT MERGE — testing purposes only

This branch exists solely to produce a build for validating encoder-produced asset bundles in the Explorer (the render check). It is not intended to be merged.

What

Adds a --asset-bundles-url <url> launch argument that overrides the asset-bundle CDN host (manifest and bundle requests). Mirrors the existing --gatekeeper-url override:

• new flag AppArgsFlags.ASSET_BUNDLES_URL ("asset-bundles-url")
• threaded MainSceneLoader → GatewayUrlsSource → DecentralandUrlsSource, seeding cache[DecentralandUrl.AssetBundlesCDN] with a STATIC entry
• optional params (null defaults) → backward-compatible; no behavior change when the arg is absent

Why

Point a build at a staging bucket of encoder-generated bundles and visually validate them, without touching production.

Usage

Launch the player with:

--asset-bundles-url https://<host>

where <host> serves the standard scheme — …/manifest/{entityId}_{platform}.json and …/{AB_VERSION}/{entityId}/{file}.

🤖 Generated with Claude Code

[github-actions]

Windows and Mac build successful in Unity Cloud! You can find a link to the downloadable artifact below.

Name	Link
Commit	f71a93a
Logs	https://github.com/decentraland/unity-explorer/actions/runs/27386869383
Download Windows	https://github.com/decentraland/unity-explorer/suites/73659572617/artifacts/7583156971
Download Windows S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/test/asset-bundles-url-override/pr-22969-f71a93a/Decentraland_windows64.zip
Download Mac	https://github.com/decentraland/unity-explorer/suites/73659572617/artifacts/
Download Mac S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/test/asset-bundles-url-override/pr-22969-f71a93a/Decentraland_macos.zip
Built on	2026-06-12T04:35:50Z

[m3taphysics]

PR #8914, run #27394778781

Builds: Windows change, Windows baseline, macOS change, macOS baseline

How to read this table

• Each build is measured 3 times. The values are the median, and (min–max) is the lowest and highest of those runs — a wide range means the metric is noisy and small differences are not trustworthy.
• Δ is Change minus Baseline (a negative Δ means Change is faster).
• 🟢 faster / 🔴 slower — a real difference: larger than both 3% and the run-to-run range.
• ⚪ within noise — the difference is smaller than how much the build varies between its own runs, so it cannot be told apart from random variation. Treat it as no change.
• Exceptions logged — exceptions found in the run logs; more than the baseline is flagged 🔴 even when frame times look fine. The Exception breakdown under each table groups them by the explorer's report category and exception type.
• A run that logged unusually many exceptions (at least 10 and 5× the median of its build's runs — e.g. a service was down during it) is excluded from all numbers and called out under the table.

Framework 13 i7

Metric	Baseline	Change	Δ	Result
Samples	2701 (×3)	2701 (×3)
CPU average	33.3 ms	33.3 ms	-0.0 ms	⚪ within noise
CPU 1% worst	33.8 ms (33.7–34.0)	33.7 ms (33.6–33.9)	-0.1 ms	⚪ within noise
CPU 0.1% worst	37.1 ms (36.0–37.2)	36.4 ms (35.3–37.1)	-0.7 ms	⚪ within noise
GPU average	7.5 ms (7.5–7.6)	7.6 ms (7.5–7.9)	0.0 ms	⚪ within noise
GPU 1% worst	19.7 ms (19.2–20.0)	19.1 ms (18.4–19.5)	-0.5 ms	⚪ within noise
GPU 0.1% worst	24.8 ms (24.1–26.8)	24.0 ms (23.3–24.3)	-0.7 ms	⚪ within noise
Exceptions logged	6	6	0	⚪ none new

Exception breakdown

Exception	Baseline	Change
[ENGINE] NullReferenceException	6	6