fix: release v1.0.3 预设渲染与语言搬运监督修复

web_platform/src/viewer/renderQuality.ts

@@ -0,0 +1,45 @@
+import * as THREE from 'three';
+
+/** Supersample low-DPI GPU displays too; software WebGL keeps its latency budget. */
+export function viewerPixelRatio(dpr: number, software: boolean): number {
+  const ratio = Number.isFinite(dpr) && dpr > 0 ? dpr : 1;
+  return software ? Math.min(ratio, 1.75) : Math.min(Math.max(ratio, 1.5), 2);
+}
+
+/** Fit shadow texels to the loaded scene instead of a default 10 m / 512 px map. */
+export function fitSceneShadow(
+  light: THREE.DirectionalLight,
+  center: readonly number[],
+  extent: number,
+): void {
+  const radius = Math.max(1, extent);
+  light.target.position.set(center[0], center[1], center[2]);
+  light.position
+    .set(4, -3, 7)
+    .normalize()
+    .multiplyScalar(radius * 2)
+    .add(light.target.position);
+  const shadow = light.shadow;
+  shadow.mapSize.set(2048, 2048);
+  Object.assign(shadow.camera, {
+    left: -radius,
+    right: radius,
+    top: radius,
+    bottom: -radius,
+    near: radius * 0.01,
+    far: radius * 4,
+  });
+  shadow.bias = -0.00005;
+  shadow.normalBias = radius / 4096;
+  shadow.camera.updateProjectionMatrix();
+  shadow.needsUpdate = true;
+}
+
+/** DataTexture defaults to nearest-neighbour; oblique camera views need mipmaps. */
+export function filterSurfaceTexture(texture: THREE.DataTexture, maxAnisotropy: number): void {
+  texture.magFilter = THREE.LinearFilter;
+  texture.minFilter = THREE.LinearMipmapLinearFilter;
+  texture.generateMipmaps = true;
+  texture.anisotropy = Math.min(8, maxAnisotropy);
+  texture.needsUpdate = true;
+}