虚线的代码完成。

shaders/texture_loading/glsl/point_line.vert

@@ -2,9 +2,13 @@
 
 layout(location = 0) in vec3 inPosition;
 layout(location = 1) in vec3 inColor;
+layout(location = 2) in vec3 inLineStart;
+layout(location = 3) in vec3 inLineEnd;
 
 layout(location = 0) out vec3 fragColor;
-layout(location = 1) out float fragLinePosition; // 用于虚线计算
+layout(location = 1) out vec3 fragLineStart;
+layout(location = 2) out vec3 fragLineEnd;
+
 
 layout(binding = 0) uniform UniformBufferObject {
     mat4 proj;
@@ -13,11 +17,12 @@ layout(binding = 0) uniform UniformBufferObject {
 } ubo;
 
 void main() {
-    mat4 mvp = ubo.proj * ubo.view * ubo.model;
-    gl_Position = mvp * vec4(inPosition, 1.0);
-    fragColor = inColor;
-    gl_PointSize = 2.0;
+    mat4 worldviewproj = ubo.proj * ubo.view * ubo.model;
+    gl_Position = worldviewproj * vec4(inPosition, 1.0);
     
-    // 硬编码虚线参数：使用模型空间的X坐标，你可以根据需要调整
-    fragLinePosition = inPosition.x;
+    fragColor = inColor;
+    
+    // 传递裁剪空间坐标
+    fragLineStart = (worldviewproj * vec4(inLineStart, 1.0)).xyz;
+    fragLineEnd = (worldviewproj * vec4(inLineEnd, 1.0)).xyz;
 }