Geometry Nodes: Add fields version of material nodes

This commit moves the old material nodes to a "legacy" folder and adds
versions of the nodes that work with fields.

The "Select by Material" node is a field node now, so it doesn't have
a geometry output. This is an improvement because there are fewer links
to connect, and it's more easily usable in different situations.
It's also called "Material Selection", since it's more of an input
than an action now.

It's sometimes necessary to use the attribute capture node to get a
more predictable interpolation to mesh faces. This is because the
selection field input is always evaluated on the face domain, so
attribute inputs are interpolated before they are booleans, so they
cannot use the new interpolations from rB5841f8656d9580d7b9.

Differential Revision: https://developer.blender.org/D12456

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/nodes/NOD_geometry.h b/source/blender/nodes/NOD_geometry.h
index e9fb4ad123c..a713da45f0b 100644
--- a/source/blender/nodes/NOD_geometry.h
+++ b/source/blender/nodes/NOD_geometry.h
@@ -29,6 +29,9 @@ void register_node_tree_type_geo(void);
 void register_node_type_geo_group(void);
 void register_node_type_geo_custom_group(bNodeType *ntype);
 
+void register_node_type_geo_legacy_material_assign(void);
+void register_node_type_geo_legacy_select_by_material(void);
+
 void register_node_type_geo_align_rotation_to_vector(void);
 void register_node_type_geo_attribute_clamp(void);
 void register_node_type_geo_attribute_color_ramp(void);
@@ -80,6 +83,7 @@ void register_node_type_geo_is_viewport(void);
 void register_node_type_geo_join_geometry(void);
 void register_node_type_geo_material_assign(void);
 void register_node_type_geo_material_replace(void);
+void register_node_type_geo_material_selection(void);
 void register_node_type_geo_mesh_primitive_circle(void);
 void register_node_type_geo_mesh_primitive_cone(void);
 void register_node_type_geo_mesh_primitive_cube(void);
@@ -101,7 +105,6 @@ void register_node_type_geo_points_to_volume(void);
 void register_node_type_geo_raycast(void);
 void register_node_type_geo_sample_texture(void);
 void register_node_type_geo_select_by_handle_type(void);
-void register_node_type_geo_select_by_material(void);
 void register_node_type_geo_separate_components(void);
 void register_node_type_geo_set_position(void);
 void register_node_type_geo_subdivision_surface(void);