真实接口预热

examples/3d/babylonAdapter.js

@@ -31,10 +31,48 @@ class BabylonMorphTargetAdapter {
         return totalTargets;
     }
 
+    async warmupInvisible(scene) {
+        console.log('开始预热...');
+        const startTime = performance.now();
+
+        const allTargets = Object.values(this.morphTargetCache).flat();
+        const totalTargets = allTargets.length;
+        console.log(`预热 ${totalTargets} 个 morph targets`);
+
+        // 多轮预热，用不同值组合
+        const rounds = 10;
+        for (let r = 0; r < rounds; r++) {
+            const val = (r % 2 === 0) ? 1.0 : 0;
+            allTargets.forEach(mt => mt.influence = val);
+            scene.render();
+            await new Promise(r => requestAnimationFrame(r));
+        }
+
+        // 重置
+        allTargets.forEach(mt => mt.influence = 0);
+        scene.render();
+
+        // 等待几帧让 GPU 完全稳定
+        for (let i = 0; i < 5; i++) {
+            await new Promise(r => requestAnimationFrame(r));
+        }
+
+        console.log(`预热完成,耗时 ${(performance.now() - startTime).toFixed(2)}ms`);
+    }
+
     warmupShaders(scene) {
         console.log('开始shader预热...');
         const startTime = performance.now();
 
+        // 强制同步更新所有 morph target managers
+        this.meshes?.forEach(mesh => {
+            const mtm = mesh.morphTargetManager;
+            if (mtm) {
+                mtm.enableNormalMorphing = true;
+                mtm.enableTangentMorphing = true;
+            }
+        });
+
         // 预热：强制触发着色器编译
         // 使用多种值组合来触发所有可能的shader变体
         const testValues = [0, 0.2, 0.4, 0.6, 0.8, 1.0];