Geometry Nodes: don't show grease pencil materials for now

Those materials cannot be on geometry handled by geometry nodes yet.
So it makes sense not to show those materials in the material socket.

1 files changed, 11 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index a1b6885e7e2..6cb893d1657 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -4455,6 +4455,13 @@ void rna_ShaderNodePointDensity_density_minmax(bNode *self,
   RE_point_density_minmax(depsgraph, pd, r_min, r_max);
 }
 
+bool rna_NodeSocketMaterial_default_value_poll(PointerRNA *UNUSED(ptr), PointerRNA value)
+{
+  /* Do not show grease pencil materials for now. */
+  Material *ma = (Material *)value.data;
+  return ma->gp_style == NULL;
+}
+
 #else
 
 static const EnumPropertyItem prop_image_layer_items[] = {
@@ -10674,6 +10681,8 @@ static void rna_def_node_socket_material(BlenderRNA *brna,
   prop = RNA_def_property(srna, "default_value", PROP_POINTER, PROP_NONE);
   RNA_def_property_pointer_sdna(prop, NULL, "value");
   RNA_def_property_struct_type(prop, "Material");
+  RNA_def_property_pointer_funcs(
+      prop, NULL, NULL, NULL, "rna_NodeSocketMaterial_default_value_poll");
   RNA_def_property_ui_text(prop, "Default Value", "Input value used for unconnected socket");
   RNA_def_property_update(
       prop, NC_NODE | NA_EDITED, "rna_NodeSocketStandard_value_and_relation_update");
@@ -10689,6 +10698,8 @@ static void rna_def_node_socket_material(BlenderRNA *brna,
   prop = RNA_def_property(srna, "default_value", PROP_POINTER, PROP_NONE);
   RNA_def_property_pointer_sdna(prop, NULL, "value");
   RNA_def_property_struct_type(prop, "Material");
+  RNA_def_property_pointer_funcs(
+      prop, NULL, NULL, NULL, "rna_NodeSocketMaterial_default_value_poll");
   RNA_def_property_ui_text(prop, "Default Value", "Input value used for unconnected socket");
   RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_NodeSocketInterface_update");
 }