Terrain artifacts in Firefox due to fingerprinting protection affecting ImageBitmap

[tour3d]

In Firefox with Enhanced Tracking Protection (especially in Private Browsing or Strict mode), terrain rendering from Mapbox height tiles is broken. The issue appears as severe vertical spikes ("terrain needles") due to noise added by Firefox's fingerprinting protection.

This protection alters pixel values when using or createImageBitmap(), which breaks the decoding of Mapbox Terrain-RGB tiles.

This does not happen in Chrome or in Firefox when using fetch + DataTexture.

Proposed solution:
geo-three should load height maps via fetch() and parse them into DataTexture directly, bypassing the canvas/image path. This avoids fingerprinting noise and restores correct elevation rendering in Firefox.

[tentone]

Hello,

Thanks a lot for reporting this issue, out i will try to replicate and fix with the proposed solution.

Or do you prefer to open a PR yourself?

Thanks a lot!