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fix: skin uv inset

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This commit is contained in:
Calum H. (IMB11)
2026-07-21 21:08:32 +01:00
parent 5302e3a987
commit b878154cc7
2 changed files with 1 additions and 49 deletions
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packages/ui/src/composables/skin-rendering/use-ears-mod-features.ts
+1 -1
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@@ -131,7 +131,7 @@ const SKIN_SIZE = 64
const EARS_V0_MAGIC = 0x3f23d8
const EARS_V1_MAGIC = 0xea2501
const ALFALFA_MAGIC = 0xea1fa1fa
const UV_TEXEL_INSET = 0.5
const UV_TEXEL_INSET = 1 / 32
const EAR_MODES: EarMode[] = [
'NONE',
packages/ui/src/utils/webgl/skin-rendering.ts
-48
View File
@@ -13,8 +13,6 @@ const modelCache: Map<string, GLTF> = new Map()
const modelPromiseCache: Map<string, Promise<GLTF>> = new Map()
const textureCache: Map<string, THREE.Texture> = new Map()
const texturePromiseCache: Map<string, Promise<THREE.Texture>> = new Map()
const SKIN_TEXTURE_SIZE = 64
const SKIN_UV_INSET_VERSION = 1
export async function loadModel(modelUrl: string): Promise<GLTF> {
if (modelCache.has(modelUrl)) {
@@ -155,58 +153,12 @@ function setCommonMaterialProperties(mat: THREE.MeshStandardMaterial): void {
}
}
function insetSkinGeometryUvs(geometry: THREE.BufferGeometry): void {
if (geometry.userData.skinUvInsetVersion === SKIN_UV_INSET_VERSION) return
const uv = geometry.getAttribute('uv')
if (!uv || uv.itemSize < 2 || uv.count % 4 !== 0) return
for (let faceStart = 0; faceStart < uv.count; faceStart += 4) {
let minU = Infinity
let maxU = -Infinity
let minV = Infinity
let maxV = -Infinity
for (let vertex = faceStart; vertex < faceStart + 4; vertex++) {
const u = uv.getX(vertex)
const v = uv.getY(vertex)
minU = Math.min(minU, u)
maxU = Math.max(maxU, u)
minV = Math.min(minV, v)
maxV = Math.max(maxV, v)
}
const insetMinU = (Math.round(minU * SKIN_TEXTURE_SIZE) + 0.5) / SKIN_TEXTURE_SIZE
const insetMaxU = (Math.round(maxU * SKIN_TEXTURE_SIZE) - 0.5) / SKIN_TEXTURE_SIZE
const insetMinV = (Math.round(minV * SKIN_TEXTURE_SIZE) + 0.5) / SKIN_TEXTURE_SIZE
const insetMaxV = (Math.round(maxV * SKIN_TEXTURE_SIZE) - 0.5) / SKIN_TEXTURE_SIZE
for (let vertex = faceStart; vertex < faceStart + 4; vertex++) {
const u = uv.getX(vertex)
const v = uv.getY(vertex)
const insetU = u === minU ? insetMinU : u === maxU ? insetMaxU : u
const insetV = v === minV ? insetMinV : v === maxV ? insetMaxV : v
uv.setXY(vertex, insetU, insetV)
}
}
uv.needsUpdate = true
geometry.userData.skinUvInsetVersion = SKIN_UV_INSET_VERSION
}
export function applyTexture(model: THREE.Object3D, texture: THREE.Texture): void {
model.traverse((child) => {
if ((child as THREE.Mesh).isMesh) {
const mesh = child as THREE.Mesh
const isSkinLayer = mesh.name.endsWith('_Layer')
const materials = Array.isArray(mesh.material) ? mesh.material : [mesh.material]
const usesSkinTexture = materials.some(
(mat) => mat instanceof THREE.MeshStandardMaterial && mat.name !== 'cape',
)
if (usesSkinTexture) {
insetSkinGeometryUvs(mesh.geometry)
}
materials.forEach((mat: THREE.Material) => {
if (mat instanceof THREE.MeshStandardMaterial) {