1 files changed, 20 insertions, 0 deletions
diff --git a/src/location/quickmapitems/rhi/shaders/polygon.vert b/src/location/quickmapitems/rhi/shaders/polygon.vert
new file mode 100644
index 00000000..06dab03e
--- /dev/null
+++ b/src/location/quickmapitems/rhi/shaders/polygon.vert
@@ -0,0 +1,20 @@
+#version 440
+
+layout(location = 0) in highp vec4 vertex;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    mat4 mapProjection;
+    vec4 center;
+    vec4 center_lowpart;
+    float wrapOffset;
+    vec4 color;
+};
+
+vec4 wrapped(in vec4 v) { return vec4(v.x + wrapOffset, v.y, 0.0, 1.0); }
+
+void main() {
+    vec4 vtx = wrapped(vertex) - center;
+    vtx = vtx - center_lowpart;
+    gl_Position = qt_Matrix * mapProjection * vtx;
+}