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blender-archive/source/blender/include/BDR_drawobject.h

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Initial revision
2002-10-12 11:37:38 +00:00
/**
* $Id$
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#ifndef BDR_DRAWOBJECT_H
#define BDR_DRAWOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
struct Object;
struct Nurb;
struct Lamp;
struct ListBase;
struct BoundBox;
struct Base;
void init_draw_rects(void);
void helpline(float *vec);
void drawaxes(float size);
void drawcamera(struct Object *ob);
EditMesh refactory + undo recode The changelog is very long... it's on the web too: http://www.blender3d.org/cms/Mesh_editing_rewrite.425.0.html EditMesh refactor notes (user) **** New selection modes When entering Edit Mode for a Mesh, you now have the choice for three selection modes. These are shown as icons in the 3D header (hotkey is being searched for!). - Vertex Select Select vertices as usual, fully compatible with how previous version work - Edge Select Vertices are not drawn anymore, and selections happen by default on the edges. It is a true edge select, meaning that you can select three out of four edges in a face, without automatic having the 4th edge selected. - Face Select Instead of vertices, now selection 'points' are drawn in the face centers. Selected faces also get a colored outline, like for edges. This also is true face select, for each face individual regardless selection status of its vertices or edges. While holding SHIFT, and press a selection mode, you can also combine the above choices. Now selection becomes mixed, and will behave as expected. For example; in Edge+Face select mode, selecting the 4 edges of a face will select the face too. The selection modes and optional drawing modes (like transparant faces, normals, or solid drawing) all work together. All of Blender's mesh editing tools now react to the correct selection mode as well. Most noticeable it's in: **** Extrude Extruding in Edge or Face Select mode allows much more precise control over what's extruded and what should be excluded. Try for example a checker pattern selection, and extrude it. New is the fixed translation when faces are extruded. This always follows the (averaged) face normal(s) of the old face(s), enabling much easier working in 3D views . A single 'G' (Grab) or 'R' (Rotate) or 'S' (Scale) will change transform modus as usual. **** Other things to note - Hiding edges/faces will also behave different based on Select Mode. - while editing, normals of faces are updated always now - Border select (BKEY) has 2 different rules for edges; when one edge is fully inside of the border, it will only select edges that are fully inside. Otherwise it selects each edge intersecting with the border. - in face mode, adding vertices, edges or a circle is invisible... - "Add monkey" now works as a normal primitive (rotated and on 3d cursor) - Mesh undo was fully recoded, hopefully solving issues now with Vertex Keys and Groups - Going in and out of editmode was fully recoded. Especially on larger models you'll notice substantial speed gain. **** Todo Add 'FaceSelect mode' functionality in EditMode, including zbuffered selection, display and editing of UV texture. EditMesh refactor notes (coder) **** Usage of flags in general The "->f" flags are reserved for the editmesh.c and editmesh_lib.c core functions. Actually only selection status is there now. The "->f1" and "->f2" flags are free to use. They're available in vertex/edge/face structs. Since they're free, check carefully when calling other functions that use these flags... for example extrude() or subdivide() use them. **** Selection flags EditVert: eve->f & SELECT EditEdge: eed->f & SELECT EditFace: efa->f & SELECT - Selection is only possible when not-hidden! - Selection flags are always up-to-date, BUT: if selection mode >= SELECT_EDGE vertex selection flags can be incorrect if selection mode == SELECT_FACE vertex/edge selection flags can be incorrect This because of shared vertices or edges. - use for selecting vertices: eve->f &= SELECT - use for selecting edges always: void EM_select_edge(eed, 1) // 1 = select, 0 = deselect - use for selecting faces always: void EM_select_face(efa, 1) // 1 = select, 0 = deselect - To set the 'f' flags in all of the data: void EM_set_flag_all(int flag); void EM_clear_flag_all(int flag); - the old faceselectedOR() and faceselectedAND() are still there, but only to be used for evaluating its vertices **** Code hints for handling selection If the selectmode is 'face'; vertex or edge selections need to be flushed upward. Same is true for 'edge' selection mode. This means that you'll have to keep track of all selections while coding... selecting the four vertices in a face doesn't automatically select the face anymore. However, by using the above calls, at least selections flush downward (to vertex level). You then can call: void EM_selectmode_flush(void); Which flushes selections back upward, based on the selectmode setting. This function does the following: - if selectmode 'vertex': select edges/faces based on its selected vertices - if selectmode 'edge': select faces based its selected edges This works fine in nice controlled situations. However, only changing the vertex selections then still doesn't select a face in face mode! If you really can't avoid only working with vertex selections, you can use this call: void EM_select_flush(void); Now selection is flushed upward regardless current selectmode. That can be destructive for special cases however, like checkerboard selected faces. So use this only when you know everything else was deselected (or deselect it). Example: adding primitives. **** Hide flags EditVert: eve->h EditEdge: eed->h EditFace: efa->h - all hide flags are always up-to-date - hidden vertices/edges/faces are always deselected. so when you operate on selection only, there's no need to check for hide flag. **** Unified undo for editmode New file: editmode_undo.h A pretty nice function pointer handler style undo. Just code three functions, and your undo will fly! The c file has a good reference. Also note that the old undo system has been replaced. It currently uses minimal dependencies on Meshes themselves (no abuse of going in/out editmode), and is restricted nicely to editmode functions. **** Going in/out editmode As speedup now all vertices/faces/edges are allocated in three big chunks. In vertices/faces/edges now tags are set to denote such data cannot be freed. ALso the hashtable (lookup) for edges uses no mallocs at all anymore, but is part of the EditEdge itself.
2004-09-23 20:52:51 +00:00
void calc_mesh_facedots_ext(void);
Initial revision
2002-10-12 11:37:38 +00:00
void calc_lattverts_ext(void);
void calc_meshverts_ext(void);
- added a call calc_meshverts_ext_f2(void) which: - projects vertices without clipping code (xs at 3200) - sets flag in editvert ( eve->f & 2) when it is not visible general note: that flag is only valid after the calc_meshverts_ext_f2 call. it is a free flag. be aware that selection is stored in bit 1 (eve->f & 1)
2003-06-30 19:51:18 +00:00
void calc_meshverts_ext_f2(void);
Initial revision
2002-10-12 11:37:38 +00:00
void calc_nurbverts_ext(void);
void drawcircball(float *cent, float rad, float tmat[][4]);
void get_local_bounds(struct Object *ob, float *centre, float *size);
void draw_object(struct Base *base);
void draw_object_ext(struct Base *base);
Transform widgets; Scale and Rotate versions To use; press the (temporal) icon in header. Switching widget types is by pressing G, R or S once, if current widget type is different it switches, otherwise it goes to normal Transform(). Widgets need a bit test for picking accuracy, correct drawing etc. The rotate widget has a center button for 'trackball' rotate. That latter can also be used for hotkey-based rotate. In current code, all widgets remain in "Global" space, also in editmode. Also widget updates while using normal transform has to be done. 2 Bugfixes: - rotate in PoseMode had error for 2d 'around' center - transform in postemode could crash, due to typo (& or |)
2005-03-19 12:17:06 +00:00
void drawsolidcube(float size);
- improvement for edge/face select - edges now sample on three locationsm gives more hits - own version of glPolygonOffset remains cumbersome... but for select now the selection routine gets more offset than draw. - first attempt to clean drawobject.c and displists - generic call for draw object in backbuf for select purposes, cleans up a lot in the other calls. - also to verify if we can (in future) use this for vertex/edge/face select, but the whole drawobject code works against me... this is for another refactory (incl. displist) and out of the focus for now - subsurf.c: now creates new faces in order of original. Not used yet, but is handy to recover the original order for selection/paint purposes.
2004-09-27 10:12:45 +00:00
extern void draw_object_backbufsel(struct Object *ob);
Initial revision
2002-10-12 11:37:38 +00:00
#ifdef __cplusplus
}
#endif
#endif /* BDR_DRAWOBJECT_H */
fixed spacing in the headers to get rid of some warnings and some other little minor spacing issues.
2002-10-30 02:07:20 +00:00
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