75f160ee96
This adds a new "Active Camera" input geometry node, per #105761. The node outputs the the scene's current active camera. It is available from Input > Scene > Active Camera in the geometry nodes Add menu. Typical usage would be to connect this node to an Object Info node to obtain its transform. This works as expected when the camera's transform is animated, and also when there are markers on the timeline that change the active camera. In order to support the aforementioned changes in the active camera, this implementation adds depsgraph relations for all cameras referenced by timeline markers. This eliminates the complexity of updating the depsgraph whenever the scene switches to a different active camera, but of course it comes at the cost of including more objects than strictly necessary in the depsgraph for scenes that switch cameras. Dynamically updating the depsgraph upon camera changes could be a future improvement if there proves to be sufficient need for it. Pull Request: https://projects.blender.org/blender/blender/pulls/113431
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
#include "BLI_compute_context.hh"
|
|
#include "BLI_function_ref.hh"
|
|
#include "BLI_multi_value_map.hh"
|
|
#include "BLI_set.hh"
|
|
|
|
#include "BKE_idprop.hh"
|
|
#include "BKE_node.h"
|
|
|
|
struct bNodeTree;
|
|
struct bNodeSocket;
|
|
struct bNodeTreeInterfaceSocket;
|
|
struct Depsgraph;
|
|
namespace blender::bke {
|
|
struct GeometrySet;
|
|
}
|
|
struct IDProperty;
|
|
struct Object;
|
|
namespace blender::nodes {
|
|
struct GeoNodesCallData;
|
|
namespace geo_eval_log {
|
|
class GeoModifierLog;
|
|
} // namespace geo_eval_log
|
|
} // namespace blender::nodes
|
|
|
|
namespace blender::nodes {
|
|
|
|
void find_node_tree_dependencies(const bNodeTree &tree,
|
|
Set<ID *> &r_ids,
|
|
bool &r_needs_own_transform_relation,
|
|
bool &r_needs_scene_camera_relation);
|
|
|
|
StringRef input_use_attribute_suffix();
|
|
StringRef input_attribute_name_suffix();
|
|
|
|
std::optional<StringRef> input_attribute_name_get(const IDProperty &props,
|
|
const bNodeTreeInterfaceSocket &io_input);
|
|
|
|
/**
|
|
* \return Whether using an attribute to input values of this type is supported.
|
|
*/
|
|
bool socket_type_has_attribute_toggle(eNodeSocketDatatype type);
|
|
|
|
/**
|
|
* \return Whether using an attribute to input values of this type is supported, and the node
|
|
* group's input for this socket accepts a field rather than just single values.
|
|
*/
|
|
bool input_has_attribute_toggle(const bNodeTree &node_tree, const int socket_index);
|
|
|
|
bool id_property_type_matches_socket(const bNodeTreeInterfaceSocket &socket,
|
|
const IDProperty &property);
|
|
|
|
std::unique_ptr<IDProperty, bke::idprop::IDPropertyDeleter> id_property_create_from_socket(
|
|
const bNodeTreeInterfaceSocket &socket);
|
|
|
|
bke::GeometrySet execute_geometry_nodes_on_geometry(const bNodeTree &btree,
|
|
const IDProperty *properties,
|
|
const ComputeContext &base_compute_context,
|
|
GeoNodesCallData &call_data,
|
|
bke::GeometrySet input_geometry);
|
|
|
|
void update_input_properties_from_node_tree(const bNodeTree &tree,
|
|
const IDProperty *old_properties,
|
|
bool use_bool_for_use_attribute,
|
|
IDProperty &properties);
|
|
|
|
void update_output_properties_from_node_tree(const bNodeTree &tree,
|
|
const IDProperty *old_properties,
|
|
IDProperty &properties);
|
|
|
|
} // namespace blender::nodes
|