jpmschweitzer/settled-reach
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fix(client): fix fog system — blocky edges and zero explored visibility (#569)

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Root cause: update_from_state() used visible_tiles (always empty in live
server mode) instead of visible_positions for bounds calculation. Bounds
never grew beyond 64x64, so tiles outside that area rendered as solid
unexplored black.

Fix: new _grow_bounds_from_positions() method reads visible_positions
(always populated from server snapshots). Shader fix: removed the
(explored < 0.01 && vis_raw < 0.01) guard that cut off the Gaussian
gradient at unexplored tile boundaries. Doubled blur step size for
D-066 compliant 6-8 tile soft gradient. Added debug_exploration mode
for diagnostic rendering of the exploration texture.

19 acceptance tests covering exploration persistence, bounds grow-only
invariant, gradient margin, Forward-only visibility writes, and
exploration data surviving texture resize.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-02-28 14:26:13 +01:00
co-authored by Claude Opus 4.6
parent 073c5a317c
commit ebc87d8e74
4 changed files with 613 additions and 46 deletions
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client/scripts/rendering/fog_shader.gd
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@@ -69,3 +69,4 @@ func update_fog() -> void:
_shader_mat.set_shader_parameter("map_offset", Vector2(FogState.map_bounds.position))
_shader_mat.set_shader_parameter("map_size", Vector2(FogState.map_bounds.size))
_shader_mat.set_shader_parameter("time", Time.get_ticks_msec() / 1000.0)
_shader_mat.set_shader_parameter("debug_exploration", FogState.debug_exploration)