fix: uv map flipY and triplanar world space, add deployment guide

src/components/ModelViewer.tsx

@@ -103,6 +103,7 @@ const MeshMaterialManager = ({ mesh, sceneObj, textureCache }: MeshMaterialManag
               tex.name = url;
               if (type === 'map') tex.colorSpace = THREE.SRGBColorSpace;
               tex.wrapS = tex.wrapT = THREE.RepeatWrapping;
+              tex.flipY = false;
               textureCache.current.set(url, tex);
               activeMat[type] = tex;
               if (mappingType === 'triplanar') activeMat.triplanarUniforms['t' + type.charAt(0).toUpperCase() + type.slice(1).replace('Map', '')].value = tex;

src/materials/TriplanarMaterial.ts

@@ -43,8 +43,8 @@ export class TriplanarMaterial extends THREE.MeshPhysicalMaterial {
         `#include <worldpos_vertex>`,
         `
         #include <worldpos_vertex>
-        vTriplanarPosition = position; // Object space
-        vTriplanarNormal = normal; // Object space normal
+        vTriplanarPosition = worldPosition.xyz; // World space
+        vTriplanarNormal = normalize((modelMatrix * vec4(normal, 0.0)).xyz); // World space normal
         `
       );