ui: texture masks, the later-era texture dials, and the pools a canvas map needs

The mask pair is the one that matters and nothing can stand in for it. 1.12 has
no texture masking at all — its single masked thing is the minimap disc, cut
engine-side — and no idiom reaches the same end, because the point is that a
rectangular texture draws as a non-rectangular shape. A seamless world map is
that operation and nothing else: a zone's art is a rectangle of parchment and
the map wants it cut to the zone's coastline.

It was affordable because the render pass already had the slot. `UiQuad::mask`
is a screen-anchored alpha mask built for the minimap's fixed circle with tiles
panning under it, which is exactly `AddMaskTexture`'s semantics — the mask is
another region with its own anchors, and the subject keeps the fragments its
alpha covers at that place. So this is plumbing, not a new material.

One mask per quad, said rather than hidden: widening it is a second texture
binding and a second uniform on every UI quad in the client. The list is kept
whole, because the order decides the winner — first added, which for a stitched
map is the land mask. Two traps are pinned by tests: a mask region is skipped at
extract rather than marked hidden, since its rect is what it covers; and a mask
whose art is missing drops the mask, not the quad, because zero coverage would
blank the art it was meant to shape.

`Texture:SetRotation` was nearly free — the renderer has carried the angle since
the minimap arrow, so this is the Lua setter for it. `SetDesaturation` is the
fractional form of 1.12's own flag, rounded onto the one flag this renderer has,
with the getter answering the caller's own number. The tile pair is applied: the
host computes the repeat count once the art has loaded.

`SetPropagateKeyboardInput` is stored, not applied: 1.12 already always
propagates, so there is no swallow mode for false to select. `EditBox:HasFocus`
publishes a fact this client already tracks and never exposed.

Corpus: 85 ok / 1 fail, roster and digest unchanged. The 12 data-half reds are
byte-identical to HEAD's.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn

This commit is contained in:

grom

2026-11-01 21:15:55 -07:00

co-authored by

Claude Opus 5

parent 87f93fea46

commit b49856c5cb

14 changed files with 983 additions and 16 deletions

docs/ADDON_COMPAT.md

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