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particle weight brush back (mostly the same as in 2.4x), needed to control long hairs movement.

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This commit is contained in:
Campbell Barton
2010-01-14 08:53:10 +00:00
parent 72b14be460
commit c1f2fd0a46
6 changed files with 94 additions and 29 deletions
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69
source/blender/blenkernel/intern/particle.c
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@@ -2983,12 +2983,21 @@ void psys_cache_edit_paths(Scene *scene, Object *ob, PTCacheEdit *edit, float cf
frs_sec = (psys || edit->pid.flag & PTCACHE_VEL_PER_SEC) ? 25.0f : 1.0f;
sel_col[0] = (float)edit->sel_col[0] / 255.0f;
sel_col[1] = (float)edit->sel_col[1] / 255.0f;
sel_col[2] = (float)edit->sel_col[2] / 255.0f;
nosel_col[0] = (float)edit->nosel_col[0] / 255.0f;
nosel_col[1] = (float)edit->nosel_col[1] / 255.0f;
nosel_col[2] = (float)edit->nosel_col[2] / 255.0f;
if(pset->brushtype == PE_BRUSH_WEIGHT){
/* use weight painting colors now... */
#if 0
sel_col[0] = sel_col[1] = sel_col[2] = 1.0f;
nosel_col[0] = nosel_col[1] = nosel_col[2] = 0.0f;
#endif
}
else{
sel_col[0] = (float)edit->sel_col[0] / 255.0f;
sel_col[1] = (float)edit->sel_col[1] / 255.0f;
sel_col[2] = (float)edit->sel_col[2] / 255.0f;
nosel_col[0] = (float)edit->nosel_col[0] / 255.0f;
nosel_col[1] = (float)edit->nosel_col[1] / 255.0f;
nosel_col[2] = (float)edit->nosel_col[2] / 255.0f;
}
/*---first main loop: create all actual particles' paths---*/
for(i=0; i<totpart; i++, pa+=pa?1:0, point++){
@@ -3003,6 +3012,14 @@ void psys_cache_edit_paths(Scene *scene, Object *ob, PTCacheEdit *edit, float cf
pind.bspline = psys ? (psys->part->flag & PART_HAIR_BSPLINE) : 0;
pind.dm = NULL;
/* should init_particle_interpolation set this ? */
if(pset->brushtype==PE_BRUSH_WEIGHT){
pind.hkey[0] = pa->hair;
pind.hkey[1] = pa->hair + 1;
}
memset(cache[i], 0, sizeof(*cache[i])*(steps+1));
cache[i]->steps = steps;
@@ -3035,6 +3052,12 @@ void psys_cache_edit_paths(Scene *scene, Object *ob, PTCacheEdit *edit, float cf
do_particle_interpolation(psys, i, pa, t, frs_sec, &pind, &result);
/* should init_particle_interpolation set this ? */
if(pset->brushtype==PE_BRUSH_WEIGHT){
pind.hkey[0] = pind.hkey[1];
pind.hkey[1]++;
}
/* non-hair points are allready in global space */
if(psys && !(psys->flag & PSYS_GLOBAL_HAIR)) {
mul_m4_v3(hairmat, result.co);
@@ -3091,22 +3114,30 @@ void psys_cache_edit_paths(Scene *scene, Object *ob, PTCacheEdit *edit, float cf
ca->vel[1] = 1.0f;
/* selection coloring in edit mode */
if((ekey + (pind.ekey[0] - point->keys))->flag & PEK_SELECT){
if((ekey + (pind.ekey[1] - point->keys))->flag & PEK_SELECT){
VECCOPY(ca->col, sel_col);
}
else{
keytime = (t - (*pind.ekey[0]->time))/((*pind.ekey[1]->time) - (*pind.ekey[0]->time));
interp_v3_v3v3(ca->col, sel_col, nosel_col, keytime);
}
if(pset->brushtype==PE_BRUSH_WEIGHT){
if(k==steps)
weight_to_rgb(pind.hkey[0]->weight, ca->col, ca->col+1, ca->col+2);
else
weight_to_rgb((1.0f - keytime) * pind.hkey[0]->weight + keytime * pind.hkey[1]->weight, ca->col, ca->col+1, ca->col+2);
}
else{
if((ekey + (pind.ekey[1] - point->keys))->flag & PEK_SELECT){
keytime = (t - (*pind.ekey[0]->time))/((*pind.ekey[1]->time) - (*pind.ekey[0]->time));
interp_v3_v3v3(ca->col, nosel_col, sel_col, keytime);
else {
if((ekey + (pind.ekey[0] - point->keys))->flag & PEK_SELECT){
if((ekey + (pind.ekey[1] - point->keys))->flag & PEK_SELECT){
VECCOPY(ca->col, sel_col);
}
else{
keytime = (t - (*pind.ekey[0]->time))/((*pind.ekey[1]->time) - (*pind.ekey[0]->time));
interp_v3_v3v3(ca->col, sel_col, nosel_col, keytime);
}
}
else{
VECCOPY(ca->col, nosel_col);
if((ekey + (pind.ekey[1] - point->keys))->flag & PEK_SELECT){
keytime = (t - (*pind.ekey[0]->time))/((*pind.ekey[1]->time) - (*pind.ekey[0]->time));
interp_v3_v3v3(ca->col, nosel_col, sel_col, keytime);
}
else{
VECCOPY(ca->col, nosel_col);
}
}
}

6
source/blender/blenkernel/intern/particle_system.c
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@@ -3071,10 +3071,8 @@ static void do_hair_dynamics(ParticleSimulationData *sim)
dvert->dw = MEM_callocN (sizeof(MDeformWeight), "deformWeight");
dvert->totweight = 1;
}
/* no special reason for the 0.5 */
/* just seems like a nice value from experiments */
dvert->dw->weight = k ? 0.5f : 1.0f;
/* roots should be 1.0, the rest can be anything from 0.0 to 1.0 */
dvert->dw->weight = key->weight;
dvert++;
}
}

40
source/blender/editors/physics/particle_edit.c
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@@ -2844,7 +2844,6 @@ static void brush_puff(PEData *data, int point_index)
PTCacheEditPoint *point = edit->points + point_index;
KEY_K;
float mat[4][4], imat[4][4];
float obmat[4][4], obimat[4][4];
float lastco[3], rootco[3] = {0.0f, 0.0f, 0.0f}, co[3], nor[3], kco[3], dco[3], ofs[3] = {0.0f, 0.0f, 0.0f}, fac=0.0f, length=0.0f;
int puff_volume = 0;
@@ -2865,22 +2864,19 @@ static void brush_puff(PEData *data, int point_index)
unit_m4(imat);
}
copy_m4_m4(obmat, data->ob->obmat);
invert_m4_m4(obimat, obmat);
LOOP_KEYS {
if(k==0) {
/* find root coordinate and normal on emitter */
VECCOPY(co, key->co);
mul_m4_v3(mat, co);
mul_v3_m4v3(kco, obimat, co); /* use 'kco' as the object space version of worldspace 'co' */
mul_v3_m4v3(kco, data->ob->imat, co); /* use 'kco' as the object space version of worldspace 'co', ob->imat is set before calling */
point_index= BLI_kdtree_find_nearest(edit->emitter_field, kco, NULL, NULL);
if(point_index == -1) return;
VECCOPY(rootco, co);
copy_v3_v3(nor, &edit->emitter_cosnos[point_index*6+3]);
mul_mat3_m4_v3(obmat, nor); /* normal into worldspace */
mul_mat3_m4_v3(data->ob->obmat, nor); /* normal into worldspace */
normalize_v3(nor);
length= 0.0f;
@@ -2949,6 +2945,21 @@ static void brush_puff(PEData *data, int point_index)
point->flag |= PEP_EDIT_RECALC;
}
static void brush_weight(PEData *data, float mat[][4], float imat[][4], int point_index, int key_index, PTCacheEditKey *key)
{
/* roots have full weight allways */
if(key_index) {
PTCacheEdit *edit = data->edit;
ParticleSystem *psys = edit->psys;
ParticleData *pa= psys->particles + point_index;
pa->hair[key_index].weight = data->weightfac;
(data->edit->points + point_index)->flag |= PEP_EDIT_RECALC;
}
}
static void brush_smooth_get(PEData *data, float mat[][4], float imat[][4], int point_index, int key_index, PTCacheEditKey *key)
{
if(key_index) {
@@ -3394,6 +3405,23 @@ static void brush_edit_apply(bContext *C, wmOperator *op, PointerRNA *itemptr)
foreach_mouse_hit_key(&data, brush_smooth_do, selected);
}
break;
}
case PE_BRUSH_WEIGHT:
{
PEData data;
PE_set_view3d_data(C, &data);
if(edit->psys) {
data.dm= psmd->dm;
data.mval= mval;
data.rad= (float)brush->size;
data.weightfac = (float)(brush->strength / 100.0f); /* note that this will never be zero */
foreach_mouse_hit_key(&data, brush_weight, selected);
}
break;
}
}

6
source/blender/editors/space_view3d/drawobject.c
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@@ -3812,6 +3812,12 @@ static void draw_ptcache_edit(Scene *scene, View3D *v3d, RegionView3D *rv3d, Obj
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
if(pset->brushtype == PE_BRUSH_WEIGHT) {
glLineWidth(2.0f);
glDisable(GL_LIGHTING);
/* TODO, nice color blending */
}
cache=edit->pathcache;
for(i=0; i<totpoint; i++){
path = cache[i];

1
source/blender/makesdna/DNA_scene_types.h
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@@ -1137,6 +1137,7 @@ typedef enum SculptFlags {
#define PE_BRUSH_PUFF 3
#define PE_BRUSH_ADD 4
#define PE_BRUSH_SMOOTH 5
#define PE_BRUSH_WEIGHT 6
/* this must equal ParticleEditSettings.brush array size */
#define PE_TOT_BRUSH 6

1
source/blender/makesrna/intern/rna_sculpt_paint.c
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@@ -44,6 +44,7 @@ static EnumPropertyItem particle_edit_hair_brush_items[] = {
{PE_BRUSH_LENGTH, "LENGTH", 0, "Length", "Make hairs longer or shorter."},
{PE_BRUSH_PUFF, "PUFF", 0, "Puff", "Make hairs stand up."},
{PE_BRUSH_CUT, "CUT", 0, "Cut", "Cut hairs."},
{PE_BRUSH_WEIGHT, "WEIGHT", 0, "Weight", "Weight hair particles."},
{0, NULL, 0, NULL, NULL}};
#ifdef RNA_RUNTIME