[Bf-blender-cvs] [8159e0a666d] master: Curves: use consistent default radius for Cycles, Eevee, Set Curve Radius node

[Brecht Van Lommel]

Commit: 8159e0a666d3d51936e50a36912f38386570af11
Author: Brecht Van Lommel
Date:   Fri Jul 8 15:53:57 2022 +0200
Branches: master
https://developer.blender.org/rB8159e0a666d3d51936e50a36912f38386570af11

Curves: use consistent default radius for Cycles, Eevee, Set Curve Radius node

To avoid Cycles not showing any hair by default, and to avoid very slow render
due to many overlaps with the previous 1 meter default in the node.

Fixes T97584, T99319

Differential Revision: https://developer.blender.org/D15405

===================================================================

M	intern/cycles/blender/curves.cpp
M	source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc

===================================================================

diff --git a/intern/cycles/blender/curves.cpp b/intern/cycles/blender/curves.cpp
index b01cb85711a..10012720bd8 100644
--- a/intern/cycles/blender/curves.cpp
+++ b/intern/cycles/blender/curves.cpp
@@ -868,7 +868,7 @@ static void export_hair_curves(Scene *scene,
     for (int i = 0; i < num_points; i++) {
       const float3 co = get_float3(b_curves.position_data[first_point_index + i].vector());
       const float radius = b_attr_radius ? b_attr_radius->data[first_point_index + i].value() :
-                                           0.0f;
+                                           0.005f;
       hair->add_curve_key(co, radius);
 
       if (attr_intercept) {
diff --git a/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc b/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc
index 90411baac3e..e4fae95b5a5 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc
@@ -10,7 +10,7 @@ static void node_declare(NodeDeclarationBuilder &b)
   b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
   b.add_input<decl::Float>(N_("Radius"))
       .min(0.0f)
-      .default_value(1.0f)
+      .default_value(0.005f)
       .supports_field()
       .subtype(PROP_DISTANCE);
   b.add_output<decl::Geometry>(N_("Curve"));