tkrmagid d559c0c56a v0.4.23: fix wall z-fight and texture discard at distance ...

Reported: with render_distance_blocks=256, the panel started shimmering
and the wall texture bled through at ~30 blocks away. Both issues are
inherent distance-rendering bugs that were previously hidden by the
default ~64-block view distance.

Two fixes in VideoAnchorRenderer:
1. SURFACE_EPSILON 0.001 → 0.02. With 24-bit depth and near=0.05, the
   smallest resolvable depth step at 30 blocks is ~1mm, so the old 1mm
   offset was right at the z-fight boundary. 2cm gives ~20× margin at
   30 blocks and remains visually unnoticeable up close.
2. RenderType entityCutout → entitySolid. swscale outputs RGBA with
   alpha=255, so there is no real cutout. Cutout's alpha-discard step
   makes distant sampling unstable on a dynamic non-mipmapped texture;
   solid removes that and is the semantically correct type.

2026-05-17 00:04:48 +09:00

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