Fix T77130: Visually broken/stepped wireframe in object mode (regression)

Create a new shader for the selection fix.

Differential Revision: https://developer.blender.org/D7873

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/draw/engines/overlay/shaders/extra_wire_vert.glsl b/source/blender/draw/engines/overlay/shaders/extra_wire_vert.glsl
index 9598f8b2814..0fbf9ba8137 100644
--- a/source/blender/draw/engines/overlay/shaders/extra_wire_vert.glsl
+++ b/source/blender/draw/engines/overlay/shaders/extra_wire_vert.glsl
@@ -17,10 +17,12 @@ void main()
   vec3 world_pos = point_object_to_world(pos);
   gl_Position = point_world_to_ndc(world_pos);
 
+#ifdef SELECT_EDGES
   /* HACK: to avoid loosing sub pixel object in selections, we add a bit of randomness to the
    * wire to at least create one fragment that will pass the occlusion query. */
   /* TODO(fclem) Limit this workaround to selection. It's not very noticeable but still... */
   gl_Position.xy += sizeViewportInv.xy * gl_Position.w * ((gl_VertexID % 2 == 0) ? -1.0 : 1.0);
+#endif
 
   stipple_coord = stipple_start = screen_position(gl_Position);
 
@@ -39,6 +41,10 @@ void main()
   }
 #endif
 
+#ifdef SELECT_EDGES
+  finalColor.a = 0.0; /* No Stipple */
+#endif
+
 #ifdef USE_WORLD_CLIP_PLANES
   world_clip_planes_calc_clip_distance(world_pos);
 #endif