Edit Mode: Change face mode edges display

This improve visibility in edit face select mode by using the face select color
instead of the edge select color (which is in default theme a bit more red). Also
makes the selected edges in this mode a bit more opaque (0.75 instead of  0.4).
Full opacity is still reserved for edge select mode.

1 files changed, 10 insertions, 5 deletions

diff --git a/source/blender/draw/modes/shaders/edit_mesh_overlay_common_lib.glsl b/source/blender/draw/modes/shaders/edit_mesh_overlay_common_lib.glsl
index 50e9c3677f9..7d4cba66933 100644
--- a/source/blender/draw/modes/shaders/edit_mesh_overlay_common_lib.glsl
+++ b/source/blender/draw/modes/shaders/edit_mesh_overlay_common_lib.glsl
@@ -17,16 +17,21 @@ vec4 EDIT_MESH_edge_color_outer(int edge_flag, int face_flag, float crease, floa
 vec4 EDIT_MESH_edge_color_inner(int edge_flag)
 {
   vec4 color = colorWireEdit;
-  color = (doEdges && ((edge_flag & EDGE_SELECTED) != 0)) ? colorEdgeSelect : color;
+  vec4 color_select = (selectEdges) ? colorEdgeSelect : colorFaceSelect;
+  color = (doEdges && ((edge_flag & EDGE_SELECTED) != 0)) ? color_select : color;
   color = (doEdges && ((edge_flag & EDGE_ACTIVE) != 0)) ? colorEditMeshActive : color;
+
+  float non_edge_select_alpha = (selectFaces && (edge_flag & EDGE_SELECTED) != 0) ? 0.75 : 0.4;
+  color.a = (selectEdges) ? 1.0 : non_edge_select_alpha;
   return color;
 }
 
 vec4 EDIT_MESH_edge_vertex_color(int vertex_flag)
 {
   vec4 color = colorWireEdit;
-  color = (doEdges && (vertex_flag & (VERT_ACTIVE | VERT_SELECTED)) != 0) ? colorEdgeSelect :
-                                                                            color;
+  vec4 color_select = (selectEdges) ? colorEdgeSelect : colorFaceSelect;
+  color = (doEdges && (vertex_flag & (VERT_ACTIVE | VERT_SELECTED)) != 0) ? color_select : color;
+  color.a = (selectEdges) ? 1.0 : 0.4;
   return color;
 }
 
@@ -46,10 +51,10 @@ vec4 EDIT_MESH_vertex_color(int vertex_flag)
 vec4 EDIT_MESH_face_color(int face_flag)
 {
   vec4 color = colorFace;
+  vec4 color_active = mix(colorFaceSelect, colorEditMeshActive, 0.5);
   color = ((face_flag & FACE_FREESTYLE) != 0) ? colorFaceFreestyle : color;
   color = ((face_flag & FACE_SELECTED) != 0) ? colorFaceSelect : color;
-  color = ((face_flag & FACE_ACTIVE) != 0) ? mix(colorFaceSelect, colorEditMeshActive, 0.5) :
-                                             color;
+  color = ((face_flag & FACE_ACTIVE) != 0) ? color_active : color;
   color.a *= ((face_flag & (FACE_FREESTYLE | FACE_SELECTED | FACE_ACTIVE)) == 0 || selectFaces) ?
                  1.0 :
                  0.5;