blender/source/gameengine/Converter/BL_SkinDeformer.h

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/**
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
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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
* of the License, or (at your option) any later version.
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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.
*
* ***** END GPL LICENSE BLOCK *****
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*/
#ifndef BL_SKINDEFORMER
#define BL_SKINDEFORMER
#ifdef WIN32
#pragma warning (disable:4786) // get rid of stupid stl-visual compiler debug warning
#endif //WIN32
#include "GEN_HashedPtr.h"
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#include "BL_MeshDeformer.h"
#include "BL_ArmatureObject.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
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#include "DNA_object_types.h"
#include "BKE_armature.h"
#include "RAS_Deformer.h"
class BL_SkinDeformer : public BL_MeshDeformer
{
public:
// void SetArmatureController (BL_ArmatureController *cont);
virtual void Relink(GEN_Map<class GEN_HashedPtr, void*>*map)
{
void **h_obj = (*map)[m_armobj];
if (h_obj){
SetArmature( (BL_ArmatureObject*)(*h_obj) );
}
else
m_armobj=NULL;
}
void SetArmature (class BL_ArmatureObject *armobj);
BL_SkinDeformer(struct Object *bmeshobj,
class BL_SkinMeshObject *mesh,
BL_ArmatureObject* arma = NULL)
: //
BL_MeshDeformer(bmeshobj, mesh),
m_armobj(arma),
m_lastUpdate(-1),
m_defbase(&bmeshobj->defbase),
Merge of apricot branch game engine changes into trunk, excluding GLSL. GLEW ==== Added the GLEW opengl extension library into extern/, always compiled into Blender now. This is much nicer than doing this kind of extension management manually, and will be used in the game engine, for GLSL, and other opengl extensions. * According to the GLEW website it works on Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris. There might still be platform specific issues due to this commit, so let me know and I'll look into it. * This means also that all extensions will now always be compiled in, regardless of the glext.h on the platform where compilation happens. Game Engine =========== Refactoring of the use of opengl extensions and other drawing code in the game engine, and cleaning up some hacks related to GLSL integration. These changes will be merged into trunk too after this. The game engine graphics demos & apricot level survived my tests, but this could use some good testing of course. For users: please test with the options "Generate Display Lists" and "Vertex Arrays" enabled, these should be the fastest and are supposed to be "unreliable", but if that's the case that's probably due to bugs that can be fixed. * The game engine now also uses GLEW for extensions, replacing the custom opengl extensions code that was there. Removes a lot of #ifdef's, but the runtime checks stay of course. * Removed the WITHOUT_GLEXT environment variable. This was added to work around a specific bug and only disabled multitexturing anyway. It might also have caused a slowdown since it was retrieving the environment variable for every vertex in immediate mode (bug #13680). * Refactored the code to allow drawing skinned meshes with vertex arrays too, removing some specific immediate mode drawing functions for this that only did extra normal calculation. Now it always splits vertices of flat faces instead. * Refactored normal recalculation with some minor optimizations, required for the above change. * Removed some outdated code behind the __NLA_OLDDEFORM #ifdef. * Fixed various bugs in setting of multitexture coordinates and vertex attributes for vertex arrays. These were not being enabled/disabled correct according to the opengl spec, leading to crashes. Also tangent attributes used an immediate mode call for vertex arrays, which can't work. * Fixed use of uninitialized variable in RAS_TexVert. * Exporting skinned meshes was doing O(n^2) lookups for vertices and deform weights, now uses same trick as regular meshes.
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m_restoremat(false),
m_releaseobject(false)
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{
Patch: [ #2439 ] Makes objects react properly to deformations after a mesh replacement call. from brian hayward (bthayward) Detailed description: Currently, when an armature deformed object's mesh is replaced by the ReplaceMesh actuator, the new mesh fails to deform to the armature's movement. My patch fixes this by properly replacing the deform controller along with the mesh (when appropriete). For instance, if one had an animated character using any of the standard deformation techniques (armature, ipo, RVK, or AVK), that character's mesh would currently be prevented from changing mid-game. It could be replaced, but the new mesh would lack the controller which tells it how to deform. If one wanted to dynamiclly add a hat on top of the character's head, it would require storing a secondary prebuilt character (mesh, armature, logic, ect...) on another layer FOR EACH HAT the character could possibly wear, then swapping out the whole character when the hat change was desired. So if you had 4 possible hat/character combos, you would have 4 character meshes, 4 armatures, 4 sets of logic, and so on. I find this lack of flexibility to be unresonable. With my patch, one could accomplish the same thing mearly by making one version of the character in the main layer, and adding an invisible object atop the character's head (which is parented to the head bone). Then whenever it becomes desirable, one can replace the invisible object's mesh with the desirable hat's mesh, then make it visible. With my patch, the hat object would then continue to deform to the character's head regardless of which hat was currently being worn. *note 1* for armature/mesh deformations, the new mesh must have properly assigned vertex groups which match one or more of the bones of the target armature before the replaceMesh call is made. Otherwise the vertices won't react to the armature because they won't know how. (not sure if vertices can be scripted to change groups after the game has started) *note 2* The added processing time involved with replacing the object's deform controller is negligible.
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};
/* this second constructor is needed for making a mesh deformable on the fly. */
BL_SkinDeformer(struct Object *bmeshobj_old,
struct Object *bmeshobj_new,
class BL_SkinMeshObject *mesh,
bool release_object,
BL_ArmatureObject* arma = NULL);
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virtual void ProcessReplica();
virtual RAS_Deformer *GetReplica();
virtual ~BL_SkinDeformer();
void Update (void);
bool Apply (class RAS_IPolyMaterial *polymat);
protected:
BL_ArmatureObject* m_armobj; // Our parent object
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float m_time;
double m_lastUpdate;
ListBase* m_defbase;
float m_obmat[4][4]; // the original object matrice in case of dynamic mesh replacement
bool m_restoremat;
bool m_releaseobject;
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};
#endif