Geometry Nodes: Bounding Box Node

This commit adds a simple node to output the min and max of an
axis-aligned bounding box for the input geometry, as well a rectangular
prism mesh created from these values for convenience.

The initial use case for this node is a "bounding box boolean", where
doing the boolean with just a bounding box could be signigicantly
faster, for cases like cutting a hole in a wall for a window. But it's
easy to imagine other cases where it could be useful.

This node supports mesh and point cloud data right now, volume support
will come as a separate patch. Also note that there is plenty of room
to improve the performance of this node through parallelization.

Differential Revision: https://developer.blender.org/D10420

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/nodes/NOD_geometry.h b/source/blender/nodes/NOD_geometry.h
index 3a26f38d6ba..4ea4fe79504 100644
--- a/source/blender/nodes/NOD_geometry.h
+++ b/source/blender/nodes/NOD_geometry.h
@@ -42,6 +42,7 @@ void register_node_type_geo_attribute_separate_xyz(void);
 void register_node_type_geo_attribute_vector_math(void);
 void register_node_type_geo_attribute_remove(void);
 void register_node_type_geo_boolean(void);
+void register_node_type_geo_bounding_box(void);
 void register_node_type_geo_collection_info(void);
 void register_node_type_geo_edge_split(void);
 void register_node_type_geo_is_viewport(void);