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blender-archive/source/blender/editors/include/ED_node.h
Jacques Lucke 9009ac2c3d Geometry Nodes: new Viewer node
This adds a viewer node similar to the one in the compositor.
The icon in the headers of nodes is removed because it served
the same purpose and is not necessary anymore.

Node outputs can be connected to the active viewer using
ctrl+shift+LMB, just like in the compositor. Right now this collides
with the shortcut used in the node wrangler addon, which will
be changed separately.

As of now, the viewed geometry is only visible in the spreadsheet.
Viewport visualization will be added separately.

There are a couple of benefits of using a viewer node compared
to the old approach with the icon in the node header:
* Better support for nodes that have more than one geometry output.
* It's more consistent with the compositor.
* If attributes become decoupled from geometry in the future,
  the viewer can have a separate input for the attribute to visualize.
* The viewer node could potentially have visualization settings.
* Allows to keep "visualization points" around by having multiple
  viewer nodes.
* Less visual clutter in node headers.

Differential Revision: https://developer.blender.org/D11470
2021-07-05 10:46:36 +02:00

145 lines
5.2 KiB
C++

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2009 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup editors
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
struct ID;
struct Main;
struct Scene;
struct ScrArea;
struct Tex;
struct View2D;
struct bContext;
struct bNode;
struct bNodeSocket;
struct bNodeSocketType;
struct bNodeTree;
struct bNodeTreeType;
struct bNodeType;
struct SpaceNode;
typedef enum {
NODE_TOP = 1,
NODE_BOTTOM = 2,
NODE_LEFT = 4,
NODE_RIGHT = 8,
} NodeBorder;
#define NODE_GRID_STEPS 5
#define NODE_EDGE_PAN_INSIDE_PAD 2
#define NODE_EDGE_PAN_OUTSIDE_PAD 0 /* Disable clamping for node panning, use whole screen. */
#define NODE_EDGE_PAN_SPEED_RAMP 1
#define NODE_EDGE_PAN_MAX_SPEED 40 /* In UI units per second, slower than default. */
#define NODE_EDGE_PAN_DELAY 1.0f
/* space_node.c */
void ED_node_cursor_location_get(const struct SpaceNode *snode, float value[2]);
void ED_node_cursor_location_set(struct SpaceNode *snode, const float value[2]);
int ED_node_tree_path_length(struct SpaceNode *snode);
void ED_node_tree_path_get(struct SpaceNode *snode, char *value);
void ED_node_tree_path_get_fixedbuf(struct SpaceNode *snode, char *value, int max_length);
void ED_node_tree_start(struct SpaceNode *snode,
struct bNodeTree *ntree,
struct ID *id,
struct ID *from);
void ED_node_tree_push(struct SpaceNode *snode, struct bNodeTree *ntree, struct bNode *gnode);
void ED_node_tree_pop(struct SpaceNode *snode);
int ED_node_tree_depth(struct SpaceNode *snode);
struct bNodeTree *ED_node_tree_get(struct SpaceNode *snode, int level);
void ED_node_set_active_viewer_key(struct SpaceNode *snode);
/* drawnode.c */
void ED_node_init_butfuncs(void);
void ED_init_custom_node_type(struct bNodeType *ntype);
void ED_init_custom_node_socket_type(struct bNodeSocketType *stype);
void ED_init_standard_node_socket_type(struct bNodeSocketType *stype);
void ED_init_node_socket_type_virtual(struct bNodeSocketType *stype);
void ED_node_sample_set(const float col[4]);
void ED_node_draw_snap(
struct View2D *v2d, const float cent[2], float size, NodeBorder border, unsigned int pos);
/* node_draw.cc */
void ED_node_socket_draw(struct bNodeSocket *sock,
const struct rcti *rect,
const float color[4],
float scale);
void ED_node_tree_update(const struct bContext *C);
void ED_node_tag_update_id(struct ID *id);
void ED_node_tag_update_nodetree(struct Main *bmain, struct bNodeTree *ntree, struct bNode *node);
void ED_node_sort(struct bNodeTree *ntree);
float ED_node_grid_size(void);
/* node_relationships.c */
void ED_node_link_intersect_test(struct ScrArea *area, int test);
void ED_node_link_insert(struct Main *bmain, struct ScrArea *area);
/* node_edit.c */
void ED_node_set_tree_type(struct SpaceNode *snode, struct bNodeTreeType *typeinfo);
bool ED_node_is_compositor(struct SpaceNode *snode);
bool ED_node_is_shader(struct SpaceNode *snode);
bool ED_node_is_texture(struct SpaceNode *snode);
bool ED_node_is_geometry(struct SpaceNode *snode);
void ED_node_shader_default(const struct bContext *C, struct ID *id);
void ED_node_composit_default(const struct bContext *C, struct Scene *scene);
void ED_node_texture_default(const struct bContext *C, struct Tex *tex);
bool ED_node_select_check(const ListBase *lb);
void ED_node_select_all(ListBase *lb, int action);
void ED_node_post_apply_transform(struct bContext *C, struct bNodeTree *ntree);
void ED_node_set_active(struct Main *bmain,
struct SpaceNode *snode,
struct bNodeTree *ntree,
struct bNode *node,
bool *r_active_texture_changed);
void ED_node_composite_job(const struct bContext *C,
struct bNodeTree *nodetree,
struct Scene *scene_owner);
/* node_ops.c */
void ED_operatormacros_node(void);
/* node_view.c */
bool ED_space_node_get_position(struct Main *bmain,
struct SpaceNode *snode,
struct ARegion *region,
const int mval[2],
float fpos[2]);
bool ED_space_node_color_sample(struct Main *bmain,
struct SpaceNode *snode,
struct ARegion *region,
const int mval[2],
float r_col[3]);
#ifdef __cplusplus
}
#endif