diff --git a/packages/layers/src/polygon/polygon3D.ts b/packages/layers/src/polygon/polygon3D.ts
index 79457439ad..b47db2d26d 100644
--- a/packages/layers/src/polygon/polygon3D.ts
+++ b/packages/layers/src/polygon/polygon3D.ts
@@ -1,8 +1,8 @@
 import { AttributeType, gl, IEncodeFeature, ILayer } from '@l7/core';
 import BaseLayer from '../core/BaseLayer';
 import { PolygonExtrudeTriangulation } from '../core/triangulation';
-import pointExtrudeFrag from './shaders/polygon_frag.glsl';
-import pointExtrudeVert from './shaders/polygon_vert.glsl';
+import pointExtrudeFrag from './shaders/polygon_extrude_frag.glsl';
+import pointExtrudeVert from './shaders/polygon_extrude_vert.glsl';
 interface IPointLayerStyleOptions {
   opacity: number;
 }
diff --git a/packages/layers/src/polygon/shaders/polygon_extrude_frag.glsl b/packages/layers/src/polygon/shaders/polygon_extrude_frag.glsl
new file mode 100644
index 0000000000..72a94d2edc
--- /dev/null
+++ b/packages/layers/src/polygon/shaders/polygon_extrude_frag.glsl
@@ -0,0 +1,10 @@
+uniform float u_Opacity: 1.0;
+varying vec4 v_Color;
+
+#pragma include "picking"
+
+void main() {
+  gl_FragColor = v_Color;
+  gl_FragColor.a *= u_Opacity;
+  gl_FragColor = filterColor(gl_FragColor);
+}
diff --git a/packages/layers/src/polygon/shaders/polygon_extrude_vert.glsl b/packages/layers/src/polygon/shaders/polygon_extrude_vert.glsl
new file mode 100644
index 0000000000..4eeca1eace
--- /dev/null
+++ b/packages/layers/src/polygon/shaders/polygon_extrude_vert.glsl
@@ -0,0 +1,19 @@
+attribute vec4 a_Color;
+attribute vec3 a_Position;
+attribute vec3 a_Normal;
+attribute float a_Size;
+uniform mat4 u_ModelMatrix;
+
+varying vec4 v_Color;
+
+#pragma include "projection"
+#pragma include "picking"
+
+void main() {
+  v_Color = vec4(a_Normal,1.0);
+  vec4 project_pos = project_position(vec4(a_Position.xy,a_Position.z * a_Size, 1.0));
+  gl_Position = project_common_position_to_clipspace(vec4(project_pos.xyz, 1.0));
+
+  setPickingColor(a_PickingColor);
+}
+
diff --git a/packages/layers/src/polygon/shaders/polygon_vert.glsl b/packages/layers/src/polygon/shaders/polygon_vert.glsl
index 4eeca1eace..710449f147 100644
--- a/packages/layers/src/polygon/shaders/polygon_vert.glsl
+++ b/packages/layers/src/polygon/shaders/polygon_vert.glsl
@@ -10,8 +10,8 @@ varying vec4 v_Color;
 #pragma include "picking"
 
 void main() {
-  v_Color = vec4(a_Normal,1.0);
-  vec4 project_pos = project_position(vec4(a_Position.xy,a_Position.z * a_Size, 1.0));
+  v_Color =a_Color;
+  vec4 project_pos = project_position(vec4(a_Position 1.0));
   gl_Position = project_common_position_to_clipspace(vec4(project_pos.xyz, 1.0));
 
   setPickingColor(a_PickingColor);