diff --git a/shaders/texture_loading/glsl/point_line.vert b/shaders/texture_loading/glsl/point_line.vert
index cc00794..9837258 100644
--- a/shaders/texture_loading/glsl/point_line.vert
+++ b/shaders/texture_loading/glsl/point_line.vert
@@ -16,9 +16,18 @@ layout(binding = 0) uniform UniformBufferObject {
     mat4 view;
 } ubo;
 
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
 void main() {
     mat4 worldviewproj = ubo.proj * ubo.view * ubo.model;
-    gl_Position = worldviewproj * vec4(inPosition, 1.0);
+    //gl_Position = worldviewproj * vec4(inPosition, 1.0);
+
+    vec2 position = vec2(inPosition.xy*2 -1);
+    //gl_Position = vec4(inPosition.xy*2 -1, 0.5, 1.0);
+    position = position * pushConstants.myValue;
+    gl_Position = vec4(position, 0.5, 1.0);
     
     fragColor = inColor;
     
diff --git a/shaders/texture_loading/glsl/point_line.vert.spv b/shaders/texture_loading/glsl/point_line.vert.spv
index eb72c72..a54c81c 100644
Binary files a/shaders/texture_loading/glsl/point_line.vert.spv and b/shaders/texture_loading/glsl/point_line.vert.spv differ
diff --git a/shaders/texture_loading/glsl/pointcloud.vert b/shaders/texture_loading/glsl/pointcloud.vert
index 3f8dd44..fa11d28 100644
--- a/shaders/texture_loading/glsl/pointcloud.vert
+++ b/shaders/texture_loading/glsl/pointcloud.vert
@@ -11,13 +11,20 @@ layout(binding = 0) uniform UniformBufferObject {
     mat4 view;
 } ubo;
 
+layout(push_constant) uniform PushConstants {
+    float myValue;
+} pushConstants;
+
 void main() {
     // 预计算MVP矩阵以减少乘法次数
-    mat4 mvp = ubo.proj * ubo.view * ubo.model;
+    //mat4 mvp = ubo.proj * ubo.view * ubo.model;
     //vec3 pos = vec3(2.0, inPosition.y, inPosition.z);
     //gl_Position = mvp * vec4(inPosition, 1.0);
 
-    gl_Position = vec4(inPosition.xy*2 -1, 0.5, 1.0);
+    vec2 position = vec2(inPosition.xy*2 -1);
+    //gl_Position = vec4(inPosition.xy*2 -1, 0.5, 1.0);
+    position = position * pushConstants.myValue;
+    gl_Position = vec4(position, 0.5, 1.0);
 
     fragColor = inColor;
     gl_PointSize = 2.0;
diff --git a/shaders/texture_loading/glsl/pointcloud.vert.spv b/shaders/texture_loading/glsl/pointcloud.vert.spv
index 2793ef2..3c9232a 100644
Binary files a/shaders/texture_loading/glsl/pointcloud.vert.spv and b/shaders/texture_loading/glsl/pointcloud.vert.spv differ