1

examples/3d/blendshapeAnimator.js

@@ -24,11 +24,7 @@ class BlendShapeAnimator {
         this.deltaThreshold = typeof config.deltaThreshold === 'number'
             ? config.deltaThreshold
             : 0.002; // Skip re-applying nearly identical values
-        this.prewarmFrameCount = typeof config.prewarmFrameCount === 'number'
-            ? config.prewarmFrameCount
-            : 30;
         this.lastFrameBlendShapes = {};
-        this._hasPrewarmed = false;
 
         // 空闲动画参数
         this.blinkParams = config.blinkParams || {
@@ -97,7 +93,6 @@ class BlendShapeAnimator {
         this.animationFrames = frames || [];
         this.animationShapeNames = this._collectAnimationShapeNames(this.animationFrames);
         this.lastFrameBlendShapes = {};
-        // 不重置 _hasPrewarmed，因为全局预热只需要做一次
     }
 
     appendAnimationFrames(frames) {
@@ -107,7 +102,6 @@ class BlendShapeAnimator {
 
         this.animationFrames.push(...frames);
         const newNames = this._collectAnimationShapeNames(frames);
-        // 不重置 _hasPrewarmed
 
         if (newNames.length === 0) {
             return;
@@ -227,49 +221,6 @@ class BlendShapeAnimator {
         this.lastFrameBlendShapes = {};
     }
 
-    _prewarmAnimation() {
-        // 同步预热已移除，改用异步预热
-        this._hasPrewarmed = true;
-    }
-
-    // 异步分帧预热 - 预热所有 morph targets，确保 GPU 真正渲染
-    async prewarmAsync(scene) {
-        if (!this.morphTargetAdapter) {
-            return;
-        }
-
-        // 获取所有可用的 morph targets，而不只是当前动画用到的
-        const allShapes = this.morphTargetAdapter.morphTargetCache
-            ? Object.keys(this.morphTargetAdapter.morphTargetCache)
-            : this.animationShapeNames;
-
-        const shapes = allShapes.filter(
-            name => !this.disabledShapesInAnimation.includes(name.toLowerCase())
-        );
-
-        if (shapes.length === 0) return;
-
-        console.log(`异步预热 ${shapes.length} 个 morph targets...`);
-
-        // 用不同的值组合预热，触发所有可能的 shader 变体
-        const testValues = [0.2, 0.5, 0.8, 1.0];
-        for (const val of testValues) {
-            shapes.forEach(name => this.morphTargetAdapter.setInfluence(name, val));
-            if (scene) scene.render();
-            await new Promise(r => requestAnimationFrame(r));
-        }
-
-        // 重置并等待几帧确保稳定
-        shapes.forEach(name => this.morphTargetAdapter.setInfluence(name, 0));
-        for (let i = 0; i < 5; i++) {
-            if (scene) scene.render();
-            await new Promise(r => requestAnimationFrame(r));
-        }
-
-        this._hasPrewarmed = true;
-        console.log('异步预热完成');
-    }
-
     _primeFirstFrame() {
         if (!this.morphTargetAdapter || this.animationFrames.length === 0) {
             return;
@@ -297,24 +248,6 @@ class BlendShapeAnimator {
         }
     }
 
-    _touchAnimationShapes() {
-        if (!this.morphTargetAdapter || !Array.isArray(this.animationShapeNames) || this.animationShapeNames.length === 0) {
-            return;
-        }
-
-        const touchValue = Math.max(this.minBlendShapeValue * 1.2, 0.05);
-        const touched = [];
-
-        this.animationShapeNames.forEach(name => {
-            this.morphTargetAdapter.setInfluence(name, touchValue);
-            touched.push(name);
-        });
-
-        touched.forEach(name => {
-            this.morphTargetAdapter.setInfluence(name, 0);
-        });
-    }
-
     _scheduleAnimationStart() {
         // 只设置开始时间，动画由统一的 RAF 循环驱动
         this.animationStartTime = performance.now();