[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [27466] trunk/blender/source/blender/ blenkernel/intern/softbody.c: getting close to 2.5 ' everything can be animated paradigm'
Jens Ole Wund (bjornmose)
bjornmose at gmx.net
Sat Mar 13 03:43:27 CET 2010
Revision: 27466
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=27466
Author: bjornmose
Date: 2010-03-13 03:43:25 +0100 (Sat, 13 Mar 2010)
Log Message:
-----------
getting close to 2.5 'everything can be animated paradigm'
well meshes do .. I've not been looking a the tail yet.
softbody.c
Modified Paths:
--------------
trunk/blender/source/blender/blenkernel/intern/softbody.c
Modified: trunk/blender/source/blender/blenkernel/intern/softbody.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/softbody.c 2010-03-13 02:35:32 UTC (rev 27465)
+++ trunk/blender/source/blender/blenkernel/intern/softbody.c 2010-03-13 02:43:25 UTC (rev 27466)
@@ -212,6 +212,41 @@
}
/*--- frame based timing ---*/
+/* helper functions for everything is animateble jow_go_for2_5 +++++++*/
+/* introducing them here, because i know: steps in properties ( at frame timing )
+ will cause unwanted responses of the softbody system (which does inter frame calculations )
+ so first 'cure' would be: interpolate linear in time ..
+ Q: why do i write this?
+ A: because it happend once, that some eger coder 'streamlined' code to fail.
+ We DO linear interpolation for goals .. and i think we should do on animated properties as well
+*/
+static float _goalfac(SoftBody *sb)/*jow_go_for2_5 */
+{
+ if (sb){
+ return ABS(sb->maxgoal - sb->mingoal);
+ }
+ printf("_goalfac failed! sb==NULL \n" );
+ return -9999.99f; /*using crude but spot able values some times helps debuggin */
+}
+
+
+static float _final_goal(Object *ob,BodyPoint *bp)/*jow_go_for2_5 */
+{
+ float f = -1999.99f;
+ if (ob){
+ SoftBody *sb= ob->soft; /* is supposed to be there */
+ if(!(ob->softflag & OB_SB_GOAL)) return (0.0f);
+ if (sb&&bp){
+ if (bp->goal < 0.0f) return (0.0f);
+ f = pow(_goalfac(sb), 4.0f);
+ return (bp->goal *f);
+ }
+ }
+ printf("_final_goal failed! sb or bp ==NULL \n" );
+ return f; /*using crude but spot able values some times helps debuggin */
+}
+/* helper functions for everything is animateble jow_go_for2_5 ------*/
+
/*+++ collider caching and dicing +++*/
/********************
@@ -2219,7 +2254,7 @@
}
/* naive ball self collision done */
- if(bp->goal < SOFTGOALSNAP){ /* ommit this bp when it snaps */
+ if(_final_goal(ob,bp) < SOFTGOALSNAP){ /* ommit this bp when it snaps */
float auxvect[3];
float velgoal[3];
@@ -2228,7 +2263,7 @@
/* true elastic goal */
float ks,kd;
sub_v3_v3v3(auxvect,bp->pos,bp->origT);
- ks = 1.0f/(1.0f- bp->goal*sb->goalspring)-1.0f ;
+ ks = 1.0f/(1.0f- _final_goal(ob,bp)*sb->goalspring)-1.0f ;
bp->force[0]+= -ks*(auxvect[0]);
bp->force[1]+= -ks*(auxvect[1]);
bp->force[2]+= -ks*(auxvect[2]);
@@ -2616,7 +2651,7 @@
}
/* naive ball self collision done */
- if(bp->goal < SOFTGOALSNAP){ /* ommit this bp when it snaps */
+ if(_final_goal(ob,bp) < SOFTGOALSNAP){ /* ommit this bp when it snaps */
float auxvect[3];
float velgoal[3];
@@ -2624,7 +2659,7 @@
if(ob->softflag & OB_SB_GOAL) {
/* true elastic goal */
sub_v3_v3v3(auxvect,bp->pos,bp->origT);
- ks = 1.0f/(1.0f- bp->goal*sb->goalspring)-1.0f ;
+ ks = 1.0f/(1.0f- _final_goal(ob,bp)*sb->goalspring)-1.0f ;
bp->force[0]+= -ks*(auxvect[0]);
bp->force[1]+= -ks*(auxvect[1]);
bp->force[2]+= -ks*(auxvect[2]);
@@ -2888,7 +2923,7 @@
else timeovermass = forcetime/0.009999f;
- if(bp->goal < SOFTGOALSNAP){
+ if(_final_goal(ob,bp) < SOFTGOALSNAP){
/* this makes t~ = t */
if(mid_flags & MID_PRESERVE) VECCOPY(dx,bp->vec);
@@ -3092,7 +3127,7 @@
int a;
for(a=sb->totpoint, bp= sb->bpoint; a>0; a--, bp++) {
- if (bp->goal >= SOFTGOALSNAP){
+ if (_final_goal(ob,bp) >= SOFTGOALSNAP){
VECCOPY(bp->prevpos,bp->pos);
VECCOPY(bp->pos,bp->origT);
}
@@ -3137,7 +3172,7 @@
bp->origT[0] = bp->origS[0] + f*(bp->origE[0] - bp->origS[0]);
bp->origT[1] = bp->origS[1] + f*(bp->origE[1] - bp->origS[1]);
bp->origT[2] = bp->origS[2] + f*(bp->origE[2] - bp->origS[2]);
- if (bp->goal >= SOFTGOALSNAP){
+ if (_final_goal(ob,bp) >= SOFTGOALSNAP){
bp->vec[0] = bp->origE[0] - bp->origS[0];
bp->vec[1] = bp->origE[1] - bp->origS[1];
bp->vec[2] = bp->origE[2] - bp->origS[2];
@@ -3224,38 +3259,7 @@
-/* helper functions for everything is animateble jow_go_for2_5 +++++++*/
-/* introducing them here, because i know: steps in properties ( at frame timing )
- will cause unwanted responses of the softbody system (which does inter frame calculations )
- so first 'cure' would be: interpolate linear in time ..
- Q: why do i write this?
- A: because it happend once, that some eger coder 'streamlined' code to fail.
- We DO linear interpolation for goals .. and i think we should do on animated properties as well
-*/
-static float _goalfac(SoftBody *sb)/*jow_go_for2_5 */
-{
- if (sb){
- return ABS(sb->maxgoal - sb->mingoal);
- }
- printf("_goalfac failed! sb==NULL \n" );
- return -9999.99f; /*using crude but spot able values some times helps debuggin */
-}
-
-static float _final_goal(SoftBody *sb,BodyPoint *bp)/*jow_go_for2_5 */
-{
- float f = -1999.99f;
- if (sb && bp){
- if (bp->goal < 0.0f) return (0.0f);
- f = pow(_goalfac(sb), 4.0f);
- return (bp->goal *f);
- }
- printf("_final_goal failed! sb or bp ==NULL \n" );
- return f; /*using crude but spot able values some times helps debuggin */
-}
-/* helper functions for everything is animateble jow_go_for2_5 ------*/
-
-
/* makes totally fresh start situation */
static void mesh_to_softbody(Scene *scene, Object *ob)
{
@@ -3293,10 +3297,18 @@
/* this is where '2.5 every thing is animateable' goes wrong in the first place jow_go_for2_5 */
/* 1st coding action to take : move this to frame level */
/* reads: leave the bp->goal as it was read from vertex group / or default .. we will need it at per frame call */
- bp->goal= sb->mingoal + bp->goal*goalfac; /* do not do here jow_go_for2_5 */
+ /* should be fixed for meshes */
+ // bp->goal= sb->mingoal + bp->goal*goalfac; /* do not do here jow_go_for2_5 */
}
+ else{
+ /* in consequence if no group was set .. but we want to animate it laters */
+ /* logically attach to goal at first */
+ if(ob->softflag & OB_SB_GOAL){bp->goal =1.0f;}
+ }
+
/* a little ad hoc changing the goal control to be less *sharp* */
- bp->goal = (float)pow(bp->goal, 4.0f);/* do not do here jow_go_for2_5 */
+ /* should be fixed for meshes */
+ // bp->goal = (float)pow(bp->goal, 4.0f);/* do not do here jow_go_for2_5 */
/* to proove the concept
this would enable per vertex *mass painting*
@@ -3530,6 +3542,8 @@
if(ob->softflag & OB_SB_GOAL){
BodyPoint *bp= sb->bpoint;
BPoint *bpnt= lt->def;
+ /* goes wrong with jow_go_for2_5 */
+ /* for now this is a built in bug .. by design */
float goalfac= ABS(sb->maxgoal - sb->mingoal);
int a;
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