Always log all components of Transform3D

README.md

@@ -75,9 +75,9 @@ We are in active development.
 There are many features we want to add, and the API is still evolving.
 _Expect breaking changes!_
 
-Current shortcomings that we are working on:
+Some shortcomings:
 * [Multi-million point clouds are slow](https://github.com/rerun-io/rerun/issues/1136)
-* [Logging many tiny things (e.g. scalars) has a lot of overhead](https://github.com/rerun-io/rerun/issues/5967)
+* [The viewer slows down where there are too many entities](https://github.com/rerun-io/rerun/issues/7115)
 * The data you want to visualize must fit in RAM
   - See <https://www.rerun.io/docs/howto/limit-ram> for how to bound memory use.
   - We plan on having a disk-based data store some time in the future.

crates/build/re_types_builder/src/codegen/cpp/mod.rs

@@ -17,6 +17,7 @@ use crate::{
     objects::ObjectClass,
     ArrowRegistry, Docs, ElementType, GeneratedFiles, Object, ObjectField, ObjectKind, Objects,
     Reporter, Type, ATTR_CPP_NO_FIELD_CTORS, ATTR_CPP_RENAME_FIELD,
+    ATTR_RERUN_LOG_MISSING_AS_EMPTY,
 };
 
 use self::array_builder::{arrow_array_builder_type, arrow_array_builder_type_object};
@@ -1581,7 +1582,7 @@ fn archetype_serialize(type_ident: &Ident, obj: &Object, hpp_includes: &mut Incl
         };
 
         // TODO(andreas): Introducing MonoCollection will remove the need for distinguishing these two cases.
-        if field.is_nullable {
+        if field.is_nullable && !obj.attrs.has(ATTR_RERUN_LOG_MISSING_AS_EMPTY) {
             quote! {
                 if (#field_accessor.has_value()) {
                     auto result = ComponentBatch::from_loggable(#field_accessor.value());

crates/build/re_types_builder/src/codegen/python/mod.rs

@@ -19,6 +19,7 @@ use crate::{
     objects::ObjectClass,
     ArrowRegistry, CodeGenerator, Docs, ElementType, GeneratedFiles, Object, ObjectField,
     ObjectKind, Objects, Reporter, Type, ATTR_PYTHON_ALIASES, ATTR_PYTHON_ARRAY_ALIASES,
+    ATTR_RERUN_LOG_MISSING_AS_EMPTY,
 };
 
 use self::views::code_for_view;
@@ -572,10 +573,10 @@ fn code_for_struct(
             } else if *kind == ObjectKind::Archetype {
                 // Archetypes use the ComponentBatch constructor for their fields
                 let (typ_unwrapped, _) = quote_field_type_from_field(objects, field, true);
-                if field.is_nullable {
-                    format!("converter={typ_unwrapped}Batch._optional, # type: ignore[misc]\n")
+                if field.is_nullable && !obj.attrs.has(ATTR_RERUN_LOG_MISSING_AS_EMPTY) {
+                    format!("converter={typ_unwrapped}Batch._optional,  # type: ignore[misc]\n")
                 } else {
-                    format!("converter={typ_unwrapped}Batch._required, # type: ignore[misc]\n")
+                    format!("converter={typ_unwrapped}Batch._required,  # type: ignore[misc]\n")
                 }
             } else if !default_converter.is_empty() {
                 code.push_indented(0, &converter_function, 1);