/**
* \warning be sure to account for a negative return value
* This is an error, "Too many objects in select buffer"
* and no action should be taken (can crash blender) if this happens
*
* \note (vc->obedit == NULL) can be set to explicitly skip edit-object selection.
*/
short view3d_opengl_select(ViewContext *vc, unsigned int *buffer, unsigned int bufsize, const rcti *input, bool do_nearest)
{
Scene *scene = vc->scene;
View3D *v3d = vc->v3d;
ARegion *ar = vc->ar;
rctf rect;
short hits;
const bool use_obedit_skip = (scene->obedit != NULL) && (vc->obedit == NULL);
const bool do_passes = do_nearest && GPU_select_query_check_active();
G.f |= G_PICKSEL;
/* case not a border select */
if (input->xmin == input->xmax) {
rect.xmin = input->xmin - 12; /* seems to be default value for bones only now */
rect.xmax = input->xmin + 12;
rect.ymin = input->ymin - 12;
rect.ymax = input->ymin + 12;
}
else {
BLI_rctf_rcti_copy(&rect, input);
}
view3d_winmatrix_set(ar, v3d, &rect);
mul_m4_m4m4(vc->rv3d->persmat, vc->rv3d->winmat, vc->rv3d->viewmat);
if (v3d->drawtype > OB_WIRE) {
v3d->zbuf = true;
glEnable(GL_DEPTH_TEST);
}
if (vc->rv3d->rflag & RV3D_CLIPPING)
ED_view3d_clipping_set(vc->rv3d);
if (do_passes)
GPU_select_begin(buffer, bufsize, &rect, GPU_SELECT_NEAREST_FIRST_PASS, 0);
else
GPU_select_begin(buffer, bufsize, &rect, GPU_SELECT_ALL, 0);
view3d_select_loop(vc, scene, v3d, ar, use_obedit_skip);
hits = GPU_select_end();
/* second pass, to get the closest object to camera */
if (do_passes) {
GPU_select_begin(buffer, bufsize, &rect, GPU_SELECT_NEAREST_SECOND_PASS, hits);
view3d_select_loop(vc, scene, v3d, ar, use_obedit_skip);
GPU_select_end();
}
G.f &= ~G_PICKSEL;
view3d_winmatrix_set(ar, v3d, NULL);
mul_m4_m4m4(vc->rv3d->persmat, vc->rv3d->winmat, vc->rv3d->viewmat);
if (v3d->drawtype > OB_WIRE) {
v3d->zbuf = 0;
glDisable(GL_DEPTH_TEST);
}
// XXX persp(PERSP_WIN);
if (vc->rv3d->rflag & RV3D_CLIPPING)
ED_view3d_clipping_disable();
if (hits < 0) printf("Too many objects in select buffer\n"); /* XXX make error message */
return hits;
}
/* Warning: be sure to account for a negative return value
* This is an error, "Too many objects in select buffer"
* and no action should be taken (can crash blender) if this happens
*/
short view3d_opengl_select(ViewContext *vc, unsigned int *buffer, unsigned int bufsize, rcti *input)
{
Scene *scene = vc->scene;
View3D *v3d = vc->v3d;
ARegion *ar = vc->ar;
rctf rect;
short code, hits;
char dt;
short dtx;
G.f |= G_PICKSEL;
/* case not a border select */
if (input->xmin == input->xmax) {
rect.xmin = input->xmin - 12; /* seems to be default value for bones only now */
rect.xmax = input->xmin + 12;
rect.ymin = input->ymin - 12;
rect.ymax = input->ymin + 12;
}
else {
BLI_rctf_rcti_copy(&rect, input);
}
setwinmatrixview3d(ar, v3d, &rect);
mult_m4_m4m4(vc->rv3d->persmat, vc->rv3d->winmat, vc->rv3d->viewmat);
if (v3d->drawtype > OB_WIRE) {
v3d->zbuf = TRUE;
glEnable(GL_DEPTH_TEST);
}
if (vc->rv3d->rflag & RV3D_CLIPPING)
ED_view3d_clipping_set(vc->rv3d);
glSelectBuffer(bufsize, (GLuint *)buffer);
glRenderMode(GL_SELECT);
glInitNames(); /* these two calls whatfor? It doesnt work otherwise */
glPushName(-1);
code = 1;
if (vc->obedit && vc->obedit->type == OB_MBALL) {
draw_object(scene, ar, v3d, BASACT, DRAW_PICKING | DRAW_CONSTCOLOR);
}
else if ((vc->obedit && vc->obedit->type == OB_ARMATURE)) {
/* if not drawing sketch, draw bones */
if (!BDR_drawSketchNames(vc)) {
draw_object(scene, ar, v3d, BASACT, DRAW_PICKING | DRAW_CONSTCOLOR);
}
}
else {
Base *base;
v3d->xray = TRUE; /* otherwise it postpones drawing */
for (base = scene->base.first; base; base = base->next) {
if (base->lay & v3d->lay) {
if (base->object->restrictflag & OB_RESTRICT_SELECT)
base->selcol = 0;
else {
base->selcol = code;
glLoadName(code);
draw_object(scene, ar, v3d, base, DRAW_PICKING | DRAW_CONSTCOLOR);
/* we draw duplicators for selection too */
if ((base->object->transflag & OB_DUPLI)) {
ListBase *lb;
DupliObject *dob;
Base tbase;
tbase.flag = OB_FROMDUPLI;
lb = object_duplilist(scene, base->object, false);
for (dob = lb->first; dob; dob = dob->next) {
tbase.object = dob->ob;
copy_m4_m4(dob->ob->obmat, dob->mat);
/* extra service: draw the duplicator in drawtype of parent */
/* MIN2 for the drawtype to allow bounding box objects in groups for lods */
dt = tbase.object->dt; tbase.object->dt = MIN2(tbase.object->dt, base->object->dt);
dtx = tbase.object->dtx; tbase.object->dtx = base->object->dtx;
draw_object(scene, ar, v3d, &tbase, DRAW_PICKING | DRAW_CONSTCOLOR);
tbase.object->dt = dt;
tbase.object->dtx = dtx;
copy_m4_m4(dob->ob->obmat, dob->omat);
}
free_object_duplilist(lb);
}
code++;
}
}
}
v3d->xray = false; /* restore */
}
glPopName(); /* see above (pushname) */
hits = glRenderMode(GL_RENDER);
G.f &= ~G_PICKSEL;
setwinmatrixview3d(ar, v3d, NULL);
mult_m4_m4m4(vc->rv3d->persmat, vc->rv3d->winmat, vc->rv3d->viewmat);
if (v3d->drawtype > OB_WIRE) {
v3d->zbuf = 0;
glDisable(GL_DEPTH_TEST);
}
// XXX persp(PERSP_WIN);
if (vc->rv3d->rflag & RV3D_CLIPPING)
ED_view3d_clipping_disable();
if (hits < 0) printf("Too many objects in select buffer\n"); /* XXX make error message */
return hits;
}
