Edit Mode: Rework display to differentiate selection modes

This removes the large edges and instead use colors to hint in which
selection mode the user is.

The component in each individual selection mode is more prominent to add
more emphasis. The other components are less prominent and dimmed.

A minor default theme changes needed to be made to keep clarity in all
combinations.

Forcing old behavior (no selection mode hit) could be done quite easily
by just making the 2 booleans true (selectFaces and selectEdges).

Reviewers: campbellbarton, billreynish

Reviewed By: campbellbarton, billreynish

Subscribers: ThinkingPolygons

Maniphest Tasks: T1234

Differential Revision: https://developer.blender.org/D4526

1 files changed, 2 insertions, 3 deletions

diff --git a/source/blender/draw/modes/shaders/edit_mesh_overlay_geom.glsl b/source/blender/draw/modes/shaders/edit_mesh_overlay_geom.glsl
index 6e59de12260..f25724d2e91 100644
--- a/source/blender/draw/modes/shaders/edit_mesh_overlay_geom.glsl
+++ b/source/blender/draw/modes/shaders/edit_mesh_overlay_geom.glsl
@@ -4,7 +4,6 @@ layout(triangle_strip, max_vertices = 4) out;
 
 uniform vec2 viewportSize;
 uniform vec2 viewportSizeInv;
-uniform float edgeScale;
 
 in vec4 finalColor[2];
 in vec4 finalColorOuter[2];
@@ -57,9 +56,9 @@ void main()
   line = abs(line) * viewportSize;
 
   finalColorOuter_f = finalColorOuter[0];
-  float half_size = sizeEdge * edgeScale;
+  float half_size = sizeEdge;
   /* Enlarge edge for flag display. */
-  half_size += (finalColorOuter_f.a > 0.0) ? max(sizeEdge * edgeScale, 1.0) : 0.0;
+  half_size += (finalColorOuter_f.a > 0.0) ? max(sizeEdge, 1.0) : 0.0;
 
 #ifdef USE_SMOOTH_WIRE
   /* Add 1 px for AA */