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Fix elven lantern glow cards rendering as flat disks

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- route small lantern/lamp/torch/candle emissive batches to glow-sprite path
- broaden light-emitter detection beyond additive-only blend modes
- add a secondary wider low-alpha halo layer for softer glow falloff
- keep elven-style lantern tint in cool blue while preserving warm tint elsewhere

This avoids rendering hard flat glow planes and restores a softer volumetric-looking lantern glow.
This commit is contained in:
Kelsi 2026-02-21 02:49:26 -08:00
parent b2b196aa33
commit 9da875c8ba
1 changed files with 19 additions and 3 deletions
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22
src/rendering/m2_renderer.cpp
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@ -2101,20 +2101,36 @@ void M2Renderer::render(const Camera& camera, const glm::mat4& view, const glm::
// (lantern housings, posts, etc.) authored so the prop itself remains visible.
const bool smallCardLikeBatch = (batch.glowSize <= 1.35f);
const bool batchUnlit = (batch.materialFlags & 0x01) != 0;
const bool shouldUseGlowSprite =
!koboldFlameCard &&
const bool lightEmitterLikeBatch =
flameLikeModel &&
!model.isSpellEffect &&
smallCardLikeBatch &&
(batch.blendMode >= 1 || batch.colorKeyBlack || batchUnlit);
const bool shouldUseGlowSprite =
!koboldFlameCard &&
((batch.blendMode >= 3) ||
lightEmitterLikeBatch ||
(flameLikeModel && batchUnlit) ||
(batch.colorKeyBlack && flameLikeModel && batchUnlit && batch.blendMode >= 1));
if (shouldUseGlowSprite) {
if (entry.distSq < 180.0f * 180.0f) {
glm::vec3 worldPos = glm::vec3(instance.modelMatrix * glm::vec4(batch.center, 1.0f));
GlowSprite gs;
gs.worldPos = worldPos;
gs.color = glm::vec4(1.0f, 0.82f, 0.46f, 1.15f);
const bool elvenLike =
(modelKeyLower.find("elf") != std::string::npos) ||
(modelKeyLower.find("elven") != std::string::npos) ||
(modelKeyLower.find("quel") != std::string::npos);
gs.color = elvenLike
? glm::vec4(0.48f, 0.72f, 1.0f, 1.05f)
: glm::vec4(1.0f, 0.82f, 0.46f, 1.15f);
gs.size = batch.glowSize * instance.scale * 1.45f;
glowSprites_.push_back(gs);
// Add wider, softer halo to avoid hard "disk" look.
GlowSprite halo = gs;
halo.color.a *= 0.42f;
halo.size *= 1.8f;
glowSprites_.push_back(halo);
}
continue;
}