Differential D14970 Diff 55893 source/blender/nodes/geometry/nodes/node_geo_set_material_index.cc

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source/blender/nodes/geometry/nodes/node_geo_set_material_index.cc

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	{			{
	const int domain_size = component.attribute_domain_size(domain);			const int domain_size = component.attribute_domain_size(domain);
	if (domain_size == 0) {			if (domain_size == 0) {
	return;			return;
	}			}
	MutableAttributeAccessor attributes = *component.attributes_for_write();			MutableAttributeAccessor attributes = *component.attributes_for_write();
	bke::GeometryFieldContext field_context{component, domain};			bke::GeometryFieldContext field_context{component, domain};

				const bke::AttributeValidator validator = attributes.lookup_validator("material_index");
	AttributeWriter<int> indices = attributes.lookup_or_add_for_write<int>("material_index", domain);			AttributeWriter<int> indices = attributes.lookup_or_add_for_write<int>("material_index", domain);

	fn::FieldEvaluator evaluator{field_context, domain_size};			fn::FieldEvaluator evaluator{field_context, domain_size};
	evaluator.set_selection(selection_field);			evaluator.set_selection(selection_field);
	evaluator.add_with_destination(index_field, indices.varray);			evaluator.add_with_destination(validator.validate_field_if_necessary(index_field),
				indices.varray);
	evaluator.evaluate();			evaluator.evaluate();
	indices.finish();			indices.finish();
	}			}

	static void node_geo_exec(GeoNodeExecParams params)			static void node_geo_exec(GeoNodeExecParams params)
	{			{
	GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");			GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
	Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");			Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
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