Cycles: add a sharpness input to the Cubic SSS falloff. When set to 1 this will

give a result more similar to the Compatible falloff option. The scale is x2
though to keep the perceived scatter radius roughly the same while changing the
sharpness. Difference with compatible will be mainly on non-flat geometry.

1 files changed, 10 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 819d2613f29..eb18f791b04 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -2819,6 +2819,15 @@ static void rna_ShaderNodeScript_update(Main *bmain, Scene *scene, PointerRNA *p
 	ED_node_tag_update_nodetree(bmain, ntree);
 }
 
+static void rna_ShaderNodeSubsurface_update(Main *bmain, Scene *scene, PointerRNA *ptr)
+{
+	bNodeTree *ntree = (bNodeTree *)ptr->id.data;
+	bNode *node = (bNode *)ptr->data;
+
+	nodeUpdate(ntree, node);
+	rna_Node_update(bmain, scene, ptr);
+}
+
 #else
 
 static EnumPropertyItem prop_image_layer_items[] = {
@@ -3642,7 +3651,7 @@ static void def_sh_subsurface(StructRNA *srna)
 	RNA_def_property_enum_sdna(prop, NULL, "custom1");
 	RNA_def_property_enum_items(prop, prop_subsurface_falloff_items);
 	RNA_def_property_ui_text(prop, "Falloff", "Function to determine how much light nearby points contribute based on their distance to the shading point");
-	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
+	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_ShaderNodeSubsurface_update");
 }
 
 static void def_sh_script(StructRNA *srna)