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blender-archive/source/blender/blenkernel/BKE_curve.h

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Initial revision
2002-10-12 11:37:38 +00:00
/**
* blenlib/BKE_curve.h (mar-2001 nzc)
*
* $Id$
*
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* ***** BEGIN GPL LICENSE BLOCK *****
Initial revision
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*
* 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
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* of the License, or (at your option) any later version.
Initial revision
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*
* 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.
*
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* ***** END GPL LICENSE BLOCK *****
Initial revision
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*/
#ifndef BKE_CURVE_H
#define BKE_CURVE_H
struct Curve;
struct ListBase;
struct Object;
struct Nurb;
struct ListBase;
struct BezTriple;
struct BevList;
when cyclic is enabled the knots would always be generated with uniform nurbs but after, cyclic nurbs would be incorrect if the bezier or endpoint u/v was set. also replaced some numbers with constants.
2008-05-26 12:50:00 +00:00
#define KNOTSU(nu) ( (nu)->orderu+ (nu)->pntsu+ (nu->orderu-1)*((nu)->flagu & CU_CYCLIC) )
#define KNOTSV(nu) ( (nu)->orderv+ (nu)->pntsv+ (nu->orderv-1)*((nu)->flagv & CU_CYCLIC) )
Biiig commit! Thanks to 2-3 weeks of cvs freeze... Render: - New; support for dual CPU render (SDL thread) Currently only works with alternating scanlines, but gives excellent performance. For both normal render as unified implemented. Note the "mutex" locks on z-transp buffer render and imbuf loads. - This has been made possible by major cleanups in render code, especially getting rid of globals (example Tin Tr Tg Tb Ta for textures) or struct OSA or using Materials or Texture data to write to. - Made normal render fully 4x32 floats too, and removed all old optimizes with chars or shorts. - Made normal render and unified render use same code for sky and halo render, giving equal (and better) results for halo render. Old render now also uses PostProcess options (brightness, mul, gamma) - Added option ("FBuf") in F10 Output Panel, this keeps a 4x32 bits buffer after render. Using PostProcess menu you will note an immediate re- display of image too (32 bits RGBA) - Added "Hue" and "Saturation" sliders to PostProcess options - Render module is still not having a "nice" API, but amount of dependencies went down a lot. Next todo: remove abusive "previewrender" code. The last main global in Render (struct Render) now can be re-used for fully controlling a render, to allow multiple "instances" of render to open. - Renderwindow now displays a smal bar on top with the stats, and keeps the stats after render too. Including "spare" page support. Not only easier visible that way, but also to remove the awkward code that was drawing stats in the Info header (extreme slow on some ATIs too) - Cleaned up blendef.h and BKE_utildefines.h, these two had overlapping defines. - I might have forgotten stuff... and will write a nice doc on the architecture!
2004-12-27 19:28:52 +00:00
Initial revision
2002-10-12 11:37:38 +00:00
void unlink_curve( struct Curve *cu);
void free_curve( struct Curve *cu);
made all data adding functions accept a name such as add_mesh or add_curve, previously only some datatypes adding functions accepted a name. also updated the Bpy.py epydocs
2007-03-11 16:25:17 +00:00
struct Curve *add_curve(char *name, int type);
Initial revision
2002-10-12 11:37:38 +00:00
struct Curve *copy_curve( struct Curve *cu);
void make_local_curve( struct Curve *cu);
PyAPI curve - added curve_type() to return the curve type BPyModule & gen_library - works with text3d now, can also make new text3d through bpy.curves.new Added Draw.Label() so scripts can draw can using freetype. widgetwizard - use Draw.Label
2007-03-27 11:37:54 +00:00
short curve_type( struct Curve *cu);
Initial revision
2002-10-12 11:37:38 +00:00
void test_curve_type( struct Object *ob);
void tex_space_curve( struct Curve *cu);
int count_curveverts( struct ListBase *nurb);
Curve Selection Tool Refactor: This commit refactors curve selection system to use certain curve selections functions that encapsulate setting of selection flags. New function to select adjacent control points was introduced too. Refactoring made it possible to simplify certain existing selection functions quite a bit. New functionality was delivered as well. Select more/less works now with NURBS as expected. Also two new curve selection functions were added: Select Every Nth and Select Random. See http://wiki.blender.org/index.php/BlenderDev/Curve_Selection_Tools for further information.
2007-06-14 14:36:27 +00:00
int count_curveverts_without_handles( struct ListBase *nurb);
Initial revision
2002-10-12 11:37:38 +00:00
void freeNurb( struct Nurb *nu);
void freeNurblist( struct ListBase *lb);
struct Nurb *duplicateNurb( struct Nurb *nu);
void duplicateNurblist( struct ListBase *lb1, struct ListBase *lb2);
void test2DNurb( struct Nurb *nu);
void minmaxNurb( struct Nurb *nu, float *min, float *max);
Wanted feature for curves: a render-time resolution. This option is located under the 'def resolu' button. If not zero, it assigns this resolution to a curve on render. Also copies with ctrl+c menu.
2006-02-07 19:59:02 +00:00
Initial revision
2002-10-12 11:37:38 +00:00
void makeknots( struct Nurb *nu, short uv, short type);
Wanted feature for curves: a render-time resolution. This option is located under the 'def resolu' button. If not zero, it assigns this resolution to a curve on render. Also copies with ctrl+c menu.
2006-02-07 19:59:02 +00:00
- remove some silly array copying code for nurb displist generation - converted dl->flag to use consistent defines for cyclic U/V
2005-08-11 22:27:53 +00:00
void makeNurbfaces( struct Nurb *nu, float *data, int rowstride);
Wanted feature for curves: a render-time resolution. This option is located under the 'def resolu' button. If not zero, it assigns this resolution to a curve on render. Also copies with ctrl+c menu.
2006-02-07 19:59:02 +00:00
void makeNurbcurve( struct Nurb *nu, float *data, int resolu, int dim);
More armature goodies; The B-Bones! (where the B can be read as 'block' or 'bezier' or 'b-spline') - set option on/off in edit buttons, armature panel - scaling of B-bones only works in editmode, use ALT+S to make bones fatter or thinner. Also works for constrainted transform - In pose mode, you now have a buttons panel with per-bone settings too Here you can find the "segments" button, which allows bones to interpolate between previous/next bones, including roll. - Buttons to control interpolation ("In" and "Out" are disabled, doesn't work satisfying yet NOTE: this doesn't give deform yet! Main purpose for now is to test if this drawing method serves to animate/pose armatures well. Still need to review proper interpolation methods... maybe bezier is too limited.
2005-07-16 19:07:02 +00:00
void forward_diff_bezier(float q0, float q1, float q2, float q3, float *p, int it, int stride);
- added make_orco_curf, even does keys! - removed {lattice,curve}_modifier functions - changed render code to use displist for curve rendering instead of making its own. required adding a bevelSplitFlag field to DispList. I also fixed the bevel face splitting which did not work correctly in many situations. - changed so all curve data creation happens in makeDispListCurveTypes, includes making bevel list and filling polys - changed render code to use displist for surface rendering - removed Curve.orco variable, built as needed now - removed stupid BLI_setScanFill* functions... why use a function argument when you can use a global and two functions! Why indeed. (this fixed crash when reloading a file with filled curves and toggling editmode) - bug fix, setting curve width!=1 disabled simple bevel for no apparent reason - cleaned up lots and lots of curve/displist code (fun example: "if(dl->type==DL_INDEX3 || dl->type==DL_INDEX3)"). Hmmm! - switched almost all lattice calls to go through lattice_deform_verts, only exception left is particles - added DBG_show_shared_render_faces function in render, just helps to visualize which verts are shared while testing (no user interface). - renamed some curve bevel buttons and rewrote tooltips to be more obvious - made CU_FAST work without dupfontbase hack Also by the way I wrote down some notes on how curve code works, nothing spiffy but it is at: http://wiki.blender.org/bin/view.pl/Blenderdev/CurveNotes
2005-08-14 06:08:41 +00:00
float *make_orco_curve( struct Object *ob);
float *make_orco_surf( struct Object *ob);
Initial revision
2002-10-12 11:37:38 +00:00
void makebevelcurve( struct Object *ob, struct ListBase *disp);
Wanted feature for curves: a render-time resolution. This option is located under the 'def resolu' button. If not zero, it assigns this resolution to a curve on render. Also copies with ctrl+c menu.
2006-02-07 19:59:02 +00:00
Initial revision
2002-10-12 11:37:38 +00:00
void makeBevelList( struct Object *ob);
* Fix: Disabled radius tapering on 2d curves with filled front or back. It would be really cool to get this working solidly, but there are many potential problems with the triangle face creation across the flat surfaces, especially when there are holes inside the curves. Maybe this could be a fun project for someone better at this than I? :) Taper object curves still cause similar problems... * Made the curve radius affect the 'Nsize' curve normal drawing too, so you don't need a bevel to see the value.
2006-08-13 08:31:59 +00:00
float calc_curve_subdiv_radius( struct Curve *cu, struct Nurb *nu, int cursubdiv);
Initial revision
2002-10-12 11:37:38 +00:00
void calchandleNurb( struct BezTriple *bezt, struct BezTriple *prev, struct BezTriple *next, int mode);
void calchandlesNurb( struct Nurb *nu);
void testhandlesNurb( struct Nurb *nu);
void autocalchandlesNurb( struct Nurb *nu, int flag);
void autocalchandlesNurb_all(int flag);
void sethandlesNurb(short code);
Wanted feature for curves: a render-time resolution. This option is located under the 'def resolu' button. If not zero, it assigns this resolution to a curve on render. Also copies with ctrl+c menu.
2006-02-07 19:59:02 +00:00
Initial revision
2002-10-12 11:37:38 +00:00
void switchdirectionNurb( struct Nurb *nu);
- readded DL_VERTS type to store lattice deformed verts - new feature, twiddled with lattice resizing to try to maintain existing vertex changes... much nicer than just resetting the lattice if you decide you need more detail in the lattice. - modifiers work with lattices now. yes, that does mean you can make a chain of lattices effecting each other 8 miles long. - some cleanup of softbody code, was rather splintered and call path was twisted and confusing. reworked main object step routine to do things in a more obvious and consistent manner and without duplicate code - added ob->softflag OB_SB_RESET instead of sbObjectReset call - modifier changes reset softbody now - moved curve_getVertexCos/curve_applyVertexCos into curve.c - update curve modifier eval to work with virtual modifiers - update modifier apply to work with curves/surfs - update make parent to also recalc object data NOTE: Although you can turn SB on for curve/font objects at the moment it doesn't really work because they call deform in multiple steps and this confuses SB. Not sure how to deal with atm.
2005-08-15 10:30:53 +00:00
float (*curve_getVertexCos(struct Curve *cu, struct ListBase *lb, int *numVerts_r))[3];
void curve_applyVertexCos(struct Curve *cu, struct ListBase *lb, float (*vertexCos)[3]);
* The displist would be uninitialized when nurbs bezieru/v was set and the order wasnt 3 or 4. add a function that checks nurbs can produce a valid line. check_valid_nurb_u/v * when check_valid_nurb_u/v fails, no curve is allocated or drawn. * knotsu/v could be NULL but some functions didn't check for this, make sure this is checked for everywhere. * The interface didnt change check the order when the bezier u/v flag was set, added functions clamp_nurb_order_u/v that takes into accound the number of points and the bezier u/v flag.
2008-05-26 09:50:46 +00:00
/* nurb checks if they can be drawn, also clamp order func */
int check_valid_nurb_u( struct Nurb *nu);
int check_valid_nurb_v( struct Nurb *nu);
int clamp_nurb_order_u( struct Nurb *nu);
int clamp_nurb_order_v( struct Nurb *nu);
Initial revision
2002-10-12 11:37:38 +00:00
#endif
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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