diff --git a/src/core/layer.js b/src/core/layer.js
index dc0afbd99e..e416d1c1ba 100644
--- a/src/core/layer.js
+++ b/src/core/layer.js
@@ -84,8 +84,8 @@ export default class Layer extends Base {
 
     object.onBeforeRender = () => {
       const zoom = this.scene.getZoom();
-      object.material.setUniformsValue('u_time', this.scene._engine.clock.getElapsedTime());
-      object.material.setUniformsValue('u_zoom', zoom);
+      // object.material.setUniformsValue('u_time', this.scene._engine.clock.getElapsedTime());
+      // object.material.setUniformsValue('u_zoom', zoom);
       this._preRender();
 
     };
diff --git a/src/core/three.js b/src/core/three.js
index 08674d38d3..1c2ca4bc80 100644
--- a/src/core/three.js
+++ b/src/core/three.js
@@ -23,7 +23,6 @@ export { Vector4 } from 'three/src/math/Vector4.js';
 export { Vector3 } from 'three/src/math/Vector3.js';
 export { Vector2 } from 'three/src/math/Vector2.js';
 export { ShaderMaterial } from 'three/src/materials/ShaderMaterial.js';
-export { MeshBasicMaterial } from 'three/src/materials/MeshBasicMaterial.js';
 export { DataTexture } from 'three/src/textures/DataTexture.js';
 export { Color } from 'three/src/math/Color.js';
 export {
diff --git a/src/layer/render/heatmap/heatmap.js b/src/layer/render/heatmap/heatmap.js
index 3386cbbd5e..07b7bb4cd4 100644
--- a/src/layer/render/heatmap/heatmap.js
+++ b/src/layer/render/heatmap/heatmap.js
@@ -72,7 +72,7 @@ function createIntensityPass(layer, bbox) {
     requestAnimationFrame(render);
     const zoom = scene.getZoom();
     mesh.material.uniforms.u_zoom.value = zoom;
-    const passWidth = Math.min(10000, Math.pow(zoom, 2.0) * 200);
+    const passWidth = Math.min(10000, Math.pow(zoom, 2.0) * 300);
     const passHeight = passWidth * (bbox.height / bbox.width);
     renderpass.pass.setSize(passWidth, passHeight);
     renderpass.render();