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fix(render3d): a leaf is not matte

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Foliage roughness was pinned to 1.0 and grazing Fresnel switched off, so nothing green
in the game had a highlight anywhere. The glint off waxy leaves and wet needles is most
of what makes a stand look alive rather than painted.

The reason it was off is real: a crown is card quads, and at a grazing angle the card's
normal is a lie, so a specular lobe frosted whole crowns white against the sky. The sheen
returns as its own term gated on exactly that - it fades as the card turns edge-on, which
is where its normal stops meaning anything. A tight lobe for the glint, a weak wide one
for the waxy rim, nothing at the angles that frosted.

Translucency reaches 260 m rather than 140, and a dense crown passes 0.45 of it rather
than 0.3, so a backlit stand glows for as far as you can see it.

400 frames: GL 7.1 s, VK 7.4 s. Backends agree to 0.14/255.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-19 16:41:33 +03:00
parent b22f65f598
commit 182cbf3cc3
10 changed files with 54 additions and 3 deletions
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bump: patch
type: fix
A leaf is not matte.
Foliage roughness was pinned to 1.0 and grazing Fresnel switched off, so nothing green in
the game had a highlight anywhere: the glint off waxy leaves and wet needles, which is
most of what makes a real stand look alive rather than painted, was simply absent.
The reason it was switched off is real. A crown is card quads, and at a grazing angle the
card's normal is a lie, so a plain specular lobe frosted whole crowns white against the
sky. So the sheen comes back as its own term gated on exactly that: it fades out as the
card turns edge-on, which is where its normal stops meaning anything. A tight lobe for the
glint, a weak wide one for the waxy rim, and nothing at all at the angles that frosted.
Thin-leaf translucency reaches further with it - a backlit stand glows for as far as you
can see it, not 140 m - and a dense crown passes 0.45 of it rather than 0.3. The distance
cap that stops a two-pixel clump card becoming a lime disc stays.