diff --git a/ShadowEditor.Web/src/event/GPUPickEvent.js b/ShadowEditor.Web/src/event/GPUPickEvent.js
index 9bf9c16f..227b78e9 100644
--- a/ShadowEditor.Web/src/event/GPUPickEvent.js
+++ b/ShadowEditor.Web/src/event/GPUPickEvent.js
@@ -163,7 +163,7 @@ GPUPickEvent.prototype.onAfterRender = function () {
         hex = -hex;
     }
 
-    let depth = hex * (camera.far - camera.near) + camera.near;
+    let depth = hex * camera.far;
 
     this.world.set(
         this.offsetX / width * 2 - 1,
@@ -172,7 +172,7 @@ GPUPickEvent.prototype.onAfterRender = function () {
     );
     this.world.unproject(camera);
 
-    console.log(`${hex},${depth}, ${this.world.x}, ${this.world.y}, ${this.world.z}`);
+    console.log(`(${this.pixel[0]},${this.pixel[1]},${this.pixel[2]}),${depth}, ${this.world.x}, ${this.world.y}, ${this.world.z}`);
 
     // 还原原来的属性
     scene.background = oldBackground;
diff --git a/ShadowEditor.Web/src/event/shader/depth_fragment.glsl b/ShadowEditor.Web/src/event/shader/depth_fragment.glsl
index 36c02cc6..c189a852 100644
--- a/ShadowEditor.Web/src/event/shader/depth_fragment.glsl
+++ b/ShadowEditor.Web/src/event/shader/depth_fragment.glsl
@@ -1,20 +1,18 @@
 precision highp float;
 
-uniform float near;
-uniform float far;
+varying float depth;
 
 void main() {
-    // 参考1：https://stackoverflow.com/questions/6408851/draw-the-depth-value-in-opengl-using-shaders
-    // 参考2：https://gamedev.stackexchange.com/questions/93055/getting-the-real-fragment-depth-in-glsl
-    float ndcDepth = (gl_FragCoord.z - near) / (far - near);
-    float clipDepth = ndcDepth / gl_FragCoord.w;
+    // 参考：https://gamedev.stackexchange.com/questions/93055/getting-the-real-fragment-depth-in-glsl
+    // float ndcDepth = (gl_FragCoord.z - near) / (far - near);
+    // float clipDepth = ndcDepth / gl_FragCoord.w;
 
-    float hex = abs(clamp(clipDepth, -1.0, 1.0)) * 16777215.0; // 0xffffff
+    float hex = abs(clamp(depth, -1.0, 1.0)) * 16777215.0; // 0xffffff
 
     float r = floor(hex / 65535.0);
     float g = floor((hex - r * 65535.0) / 255.0);
     float b = floor(hex - r * 65535.0 - g * 255.0);
-    float a = sign(clipDepth) >= 0.0 ? 1.0 : 0.0; // depth大于等于0，为1.0；小于0，为0.0。
+    float a = sign(depth) >= 0.0 ? 1.0 : 0.0; // depth大于等于0，为1.0；小于0，为0.0。
 
     gl_FragColor = vec4(r / 255.0, g / 255.0, b / 255.0, a);
 }
\ No newline at end of file
diff --git a/ShadowEditor.Web/src/event/shader/depth_vertex.glsl b/ShadowEditor.Web/src/event/shader/depth_vertex.glsl
index d2119de5..9db9d12d 100644
--- a/ShadowEditor.Web/src/event/shader/depth_vertex.glsl
+++ b/ShadowEditor.Web/src/event/shader/depth_vertex.glsl
@@ -1,5 +1,11 @@
 precision highp float;
 
+uniform float far;
+
+varying float depth;
+
 void main() {
+    // 参考：https://stackoverflow.com/questions/6408851/draw-the-depth-value-in-opengl-using-shaders
     gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
+    depth = gl_Position.z / far;
 }
\ No newline at end of file