阿斯蒂芬

shaders/texture_loading/glsl/point_line.frag

@@ -9,38 +9,19 @@ layout(location = 0) out vec4 outColor;
 void main() {
     vec2 fragPos = gl_FragCoord.xy;
     
-    vec2 start = (fragLineStart.xy * 0.5 + 0.5) * 480.0;
+    // 网格参数
-    vec2 end = (fragLineEnd.xy * 0.5 + 0.5) * 480.0;
+    float gridSize = 14.0;           // 网格大小
+    float dotRadius = 7.0;           // 点状半径
     
-    vec2 lineDir = end - start;
+    // 计算当前片段所在的网格和网格中心坐标
-    float lineLength = length(lineDir);
+    vec2 gridCoord = fragPos / gridSize;
+    vec2 gridCenter = (floor(gridCoord) + 0.5) * gridSize;
     
-    if (lineLength < 1.0) {
+    // 计算片段到网格中心的距离
-        outColor = vec4(fragColor, 1.0);
+    float distanceToCenter = length(fragPos - gridCenter);
-        return;
-    }
     
-    lineDir = normalize(lineDir);
+    // 如果距离超过点状半径，丢弃（创建点状虚线）
-    vec2 toFrag = fragPos - start;
+    if (distanceToCenter > dotRadius) {
-    float projection = dot(toFrag, lineDir);
-    projection = clamp(projection, 0.0, lineLength);
-    
-    vec2 closestPoint = start + lineDir * projection;
-    float distanceToLine = length(fragPos - closestPoint);
-    
-    float lineWidth = 6.0;
-    
-    if (distanceToLine > lineWidth) {
-        discard;
-    }
-    
-    float dashLength = 50.0;  
-    float gapLength = 20.0;   
-    
-    float patternLength = dashLength + gapLength;
-    float patternPos = mod(projection, patternLength);
-    
-    if (patternPos > dashLength) {
         discard;
     }
     

shaders/texture_loading/glsl/point_line.vert

@@ -22,7 +22,6 @@ void main() {
     
     fragColor = inColor;
     
-    // 传递裁剪空间坐标
     fragLineStart = (worldviewproj * vec4(inLineStart, 1.0)).xyz;
     fragLineEnd = (worldviewproj * vec4(inLineEnd, 1.0)).xyz;
 }