1 files changed, 22 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/shaders/overlay_extra_groundline_vert.glsl b/source/blender/draw/engines/overlay/shaders/overlay_extra_groundline_vert.glsl
new file mode 100644
index 00000000000..ff7aae523e7
--- /dev/null
+++ b/source/blender/draw/engines/overlay/shaders/overlay_extra_groundline_vert.glsl
@@ -0,0 +1,22 @@
+
+#pragma BLENDER_REQUIRE(common_view_clipping_lib.glsl)
+#pragma BLENDER_REQUIRE(common_view_lib.glsl)
+
+void main()
+{
+  finalColor = colorLight;
+
+  /* Relative to DPI scaling. Have constant screen size. */
+  vec3 screen_pos = screenVecs[0].xyz * pos.x + screenVecs[1].xyz * pos.y;
+  vec3 p = inst_pos;
+  p.z *= (pos.z == 0.0) ? 0.0 : 1.0;
+  float screen_size = mul_project_m4_v3_zfac(p) * sizePixel;
+  vec3 world_pos = p + screen_pos * screen_size;
+
+  gl_Position = point_world_to_ndc(world_pos);
+
+  /* Convert to screen position [0..sizeVp]. */
+  edgePos = edgeStart = ((gl_Position.xy / gl_Position.w) * 0.5 + 0.5) * sizeViewport.xy;
+
+  view_clipping_distances(world_pos);
+}