[Bf-blender-cvs] [7ad57405761] gpencil-new-data-proposal: Curves: use consistent default radius for Cycles, Eevee, Set Curve Radius node

[Brecht Van Lommel]

Commit: 7ad5740576132c550f392947692262407054476a
Author: Brecht Van Lommel
Date:   Fri Jul 8 15:53:57 2022 +0200
Branches: gpencil-new-data-proposal
https://developer.blender.org/rB7ad5740576132c550f392947692262407054476a

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"));