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SparkSplatViewer.js

@@ -43,7 +43,7 @@ export class SparkSplatViewer {
 
             // Spark渲染器配置
             maxStdDev: options.maxStdDev ?? Math.sqrt(5),
-            sortRadial: options.sortRadial ?? true,
+            sortRadial: options.sortRadial ?? false,
             enableLod: options.enableLod ?? true,
             lodSplatScale: options.lodSplatScale ?? 1.0,
 
@@ -117,11 +117,17 @@ export class SparkSplatViewer {
             antialias: false,
             alpha: false,
             canvas: options.canvas || undefined,
+            powerPreference: "high-performance",  // 强制独显
+            depth: false,                           // 3DGS 不需要 depth
+            stencil: false,    
         });
         this.renderer.setSize(this.container.clientWidth, this.container.clientHeight);
-        this.renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
-        this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
-        this.renderer.toneMappingExposure = 1;
+        this.renderer.setPixelRatio(Math.min(window.devicePixelRatio, 1));
+        // this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
+        // this.renderer.toneMappingExposure = 1;
+        // 改为：
+        this.renderer.toneMapping = THREE.NoToneMapping;  // 或 LinearToneMapping
+
 
         if (!options.canvas) {
             this.container.appendChild(this.renderer.domElement);
@@ -293,17 +299,35 @@ export class SparkSplatViewer {
     _startRenderLoop() {
         const animate = () => {
             if (this.isDestroyed) return;
-
+            requestAnimationFrame(animate);  // 先预约下一帧，避免掉帧
+            
             const deltaTime = this._clock.getDelta();
-
-            // 自动旋转（仅在用户未交互时）
+            
+            // 自动旋转
             if (this.options.autoRotate && !this._isUserInteracting) {
                 this._doAutoRotate(deltaTime);
+                this._needsRender = true;
+            }
+            
+            // 控制器阻尼更新
+            if (this.controls.enableDamping) {
+                const oldPos = this._lastCameraPos.clone();
+                const oldQuat = this._lastCameraQuat.clone();
+                this.controls.update();
+                if (!this.camera.position.equals(oldPos) || !this.camera.quaternion.equals(oldQuat)) {
+                    this._needsRender = true;
+                    this._lastCameraPos.copy(this.camera.position);
+                    this._lastCameraQuat.copy(this.camera.quaternion);
+                }
+            } else {
+                this.controls.update();
+            }
+            
+            // 只在需要时渲染
+            if (this._needsRender) {
+                this.renderer.render(this.scene, this.camera);
+                this._needsRender = false;
             }
-
-            this.controls.update();
-            this.renderer.render(this.scene, this.camera);
-            requestAnimationFrame(animate);
         };
         requestAnimationFrame(animate);
     }
@@ -316,6 +340,7 @@ export class SparkSplatViewer {
         this.camera.aspect = w / h;
         this.camera.updateProjectionMatrix();
         this.renderer.setSize(w, h);
+        this.renderer.setPixelRatio(Math.min(window.devicePixelRatio, 1.0));  // ← 保持限制
     }
 
     /** 获取设备类型 */