static void TraverseLOD(GF_Node *node, void *rs, Bool is_destroy)
{
GF_ChildNodeItem *children;
MFFloat *ranges;
SFVec3f pos, usr;
u32 which_child, nb_children;
Fixed dist;
Bool do_all;
GF_Matrix mx;
SFVec3f center;
GF_TraverseState *tr_state = (GF_TraverseState *)rs;
s32 *prev_child = (s32 *)gf_node_get_private(node);
if (is_destroy) {
gf_free(prev_child);
gf_sc_check_focus_upon_destroy(node);
return;
}
/*WARNING: X3D/MPEG4 NOT COMPATIBLE*/
if (gf_node_get_tag(node) == TAG_MPEG4_LOD) {
children = ((M_LOD *) node)->level;
ranges = &((M_LOD *) node)->range;
center = ((M_LOD *) node)->center;
#ifndef GPAC_DISABLE_X3D
} else {
children = ((X_LOD *) node)->children;
ranges = &((X_LOD *) node)->range;
center = ((X_LOD *) node)->center;
#endif
}
if (!children) return;
nb_children = gf_node_list_get_count(children);
if (!tr_state->camera) {
do_all = 1;
which_child = 0;
} else {
/*can't cache the matrix here*/
usr = tr_state->camera->position;
pos = center;
gf_mx_copy(mx, tr_state->model_matrix);
gf_mx_inverse(&mx);
gf_mx_apply_vec(&mx, &usr);
gf_vec_diff(pos, pos, usr);
dist = gf_vec_len(pos);
for (which_child=0; which_child<ranges->count; which_child++) {
if (dist<ranges->vals[which_child]) break;
}
if (which_child>=nb_children) which_child = nb_children-1;
/*check if we're traversing the same child or not for audio rendering*/
do_all = 0;
if (gf_node_dirty_get(node)) {
gf_node_dirty_clear(node, 0);
do_all = 1;
} else if ((s32) which_child != *prev_child) {
*prev_child = which_child;
do_all = 1;
}
}
if (do_all) {
u32 i;
Bool prev_switch = tr_state->switched_off;
GF_ChildNodeItem *l = children;
tr_state->switched_off = 1;
i=0;
while (l) {
if (i!=which_child) gf_node_traverse(l->node, rs);
l = l->next;
}
tr_state->switched_off = prev_switch;
}
gf_node_traverse(gf_node_list_get_child(children, which_child), rs);
}
static void NLD_Apply(M_NonLinearDeformer *nld, GF_Mesh *mesh)
{
u32 i;
GF_Matrix mx;
SFVec3f n;
Fixed param, z_min, z_max, v_min, v_max, f_min, f_max, frac, val, a_cos, a_sin;
Bool needs_transform = NLD_GetMatrix(nld, &mx);
param = nld->param;
if (!param) param = 1;
if (mesh->bounds.min_edge.z == mesh->bounds.max_edge.z) return;
z_min = FIX_MAX;
z_max = -FIX_MAX;
if (needs_transform) {
for (i=0; i<mesh->v_count; i++) {
gf_mx_apply_vec(&mx, &mesh->vertices[i].pos);
MESH_GET_NORMAL(n, mesh->vertices[i]);
gf_mx_rotate_vector(&mx, &n);
MESH_SET_NORMAL(mesh->vertices[i], n);
if (mesh->vertices[i].pos.z<z_min) z_min = mesh->vertices[i].pos.z;
if (mesh->vertices[i].pos.z>z_max) z_max = mesh->vertices[i].pos.z;
}
} else {
z_min = mesh->bounds.min_edge.z;
z_max = mesh->bounds.max_edge.z;
}
for (i=0; i<mesh->v_count; i++) {
SFVec3f old = mesh->vertices[i].pos;
frac = gf_divfix(old.z - z_min, z_max - z_min);
NLD_GetKey(nld, frac, &f_min, &v_min, &f_max, &v_max);
if (f_max == f_min) {
val = v_min;
} else {
frac = gf_divfix(frac-f_min, f_max - f_min);
val = gf_mulfix(v_max - v_min, frac) + v_min;
}
val = gf_mulfix(val, param);
switch (nld->type) {
/*taper*/
case 0:
mesh->vertices[i].pos.x = gf_mulfix(mesh->vertices[i].pos.x, val);
mesh->vertices[i].pos.y = gf_mulfix(mesh->vertices[i].pos.y, val);
MESH_GET_NORMAL(old, mesh->vertices[i]);
n=old;
n.x = gf_mulfix(n.x, val);
n.y = gf_mulfix(n.y, val);
gf_vec_norm(&n);
MESH_SET_NORMAL(mesh->vertices[i], n);
break;
/*twist*/
case 1:
a_cos = gf_cos(val);
a_sin = gf_sin(val);
mesh->vertices[i].pos.x = gf_mulfix(a_cos, old.x) - gf_mulfix(a_sin, old.y);
mesh->vertices[i].pos.y = gf_mulfix(a_sin, old.x) + gf_mulfix(a_cos, old.y);
MESH_GET_NORMAL(old, mesh->vertices[i]);
n=old;
n.x = gf_mulfix(a_cos, old.x) - gf_mulfix(a_sin, old.y);
n.y = gf_mulfix(a_sin, old.x) + gf_mulfix(a_cos, old.y);
gf_vec_norm(&n);
MESH_SET_NORMAL(mesh->vertices[i], n);
break;
/*bend*/
case 2:
a_cos = gf_cos(val);
a_sin = gf_sin(val);
mesh->vertices[i].pos.x = gf_mulfix(a_sin, old.z) + gf_mulfix(a_cos, old.x);
mesh->vertices[i].pos.z = gf_mulfix(a_cos, old.z) - gf_mulfix(a_sin, old.x);
MESH_GET_NORMAL(old, mesh->vertices[i]);
n=old;
n.x = gf_mulfix(a_sin, old.z) + gf_mulfix(a_cos, old.x);
n.z = gf_mulfix(a_cos, old.z) - gf_mulfix(a_sin, old.x);
gf_vec_norm(&n);
MESH_SET_NORMAL(mesh->vertices[i], n);
break;
/*pinch, not standard (taper on X dim only)*/
case 3:
mesh->vertices[i].pos.x = gf_mulfix(mesh->vertices[i].pos.x, val);
MESH_GET_NORMAL(old, mesh->vertices[i]);
n=old;
n.x = gf_mulfix(n.x, val);
gf_vec_norm(&n);
MESH_SET_NORMAL(mesh->vertices[i], n);
break;
}
}
if (needs_transform) {
gf_mx_inverse(&mx);
for (i=0; i<mesh->v_count; i++) {
gf_mx_apply_vec(&mx, &mesh->vertices[i].pos);
MESH_GET_NORMAL(n, mesh->vertices[i]);
gf_mx_rotate_vector(&mx, &n);
MESH_SET_NORMAL(mesh->vertices[i], n);
}
}
mesh_update_bounds(mesh);
gf_mesh_build_aabbtree(mesh);
}
static void TraverseBillboard(GF_Node *n, void *rs, Bool is_destroy)
{
GF_Matrix gf_mx_bckup;
TransformStack *st = (TransformStack *)gf_node_get_private(n);
M_Billboard *bb = (M_Billboard *)n;
GF_TraverseState *tr_state = (GF_TraverseState *)rs;
if (is_destroy) {
DestroyTransform(n);
return;
}
if (! tr_state->camera) return;
/*can't cache the matrix here*/
gf_mx_init(st->mx);
if (tr_state->camera->is_3D) {
SFVec3f z, axis;
Fixed axis_len;
SFVec3f user_pos = tr_state->camera->position;
gf_mx_apply_vec(&tr_state->model_matrix, &user_pos);
gf_vec_norm(&user_pos);
axis = bb->axisOfRotation;
axis_len = gf_vec_len(axis);
if (axis_len<FIX_EPSILON) {
SFVec3f x, y, t;
/*get user's right in local coord*/
gf_vec_diff(t, tr_state->camera->position, tr_state->camera->target);
gf_vec_norm(&t);
x = gf_vec_cross(tr_state->camera->up, t);
gf_vec_norm(&x);
gf_mx_rotate_vector(&tr_state->model_matrix, &x);
gf_vec_norm(&x);
/*get user's up in local coord*/
y = tr_state->camera->up;
gf_mx_rotate_vector(&tr_state->model_matrix, &y);
gf_vec_norm(&y);
z = gf_vec_cross(x, y);
gf_vec_norm(&z);
gf_mx_rotation_matrix_from_vectors(&st->mx, x, y, z);
gf_mx_inverse(&st->mx);
} else {
SFVec3f tmp;
Fixed d, cosw, sinw, angle;
gf_vec_norm(&axis);
/*map eye & z into plane with normal axis through 0.0*/
d = -gf_vec_dot(axis, user_pos);
tmp = gf_vec_scale(axis, d);
gf_vec_add(user_pos, user_pos, tmp);
gf_vec_norm(&user_pos);
z.x = z.y = 0;
z.z = FIX_ONE;
d = -gf_vec_dot(axis, z);
tmp = gf_vec_scale(axis, d);
gf_vec_add(z, z, tmp);
gf_vec_norm(&z);
cosw = gf_vec_dot(user_pos, z);
tmp = gf_vec_cross(user_pos, z);
sinw = gf_vec_len(tmp);
angle = gf_acos(cosw);
gf_vec_norm(&tmp);
if ((sinw>0) && (gf_vec_dot(axis, tmp) > 0)) gf_vec_rev(axis);
gf_mx_add_rotation(&st->mx, angle, axis.x, axis.y, axis.z);
}
}
gf_mx_copy(gf_mx_bckup, tr_state->model_matrix);
gf_mx_add_matrix(&tr_state->model_matrix, &st->mx);
/*note we don't clear dirty flag, this is done in traversing*/
group_3d_traverse(n, (GroupingNode *) st, tr_state);
gf_mx_copy(tr_state->model_matrix, gf_mx_bckup);
if (tr_state->traversing_mode==TRAVERSE_GET_BOUNDS) gf_mx_apply_bbox(&st->mx, &tr_state->bbox);
}
void svg_drawable_3d_pick(Drawable *drawable, GF_TraverseState *tr_state, DrawAspect2D *asp)
{
SFVec3f local_pt, world_pt, vdiff;
SFVec3f hit_normal;
SFVec2f text_coords;
u32 i, count;
Fixed sqdist;
Bool node_is_over;
GF_Compositor *compositor;
GF_Matrix mx;
GF_Ray r;
compositor = tr_state->visual->compositor;
node_is_over = 0;
r = tr_state->ray;
gf_mx_copy(mx, tr_state->model_matrix);
gf_mx_inverse(&mx);
gf_mx_apply_ray(&mx, &r);
/*if we already have a hit point don't check anything below...*/
if (compositor->hit_square_dist && !compositor->grabbed_sensor && !tr_state->layer3d) {
GF_Plane p;
GF_BBox box;
SFVec3f hit = compositor->hit_world_point;
gf_mx_apply_vec(&mx, &hit);
p.normal = r.dir;
p.d = -1 * gf_vec_dot(p.normal, hit);
gf_bbox_from_rect(&box, &drawable->path->bbox);
if (gf_bbox_plane_relation(&box, &p) == GF_BBOX_FRONT) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[SVG Picking] bounding box of node %s (DEF %s) below current hit point - skipping\n", gf_node_get_class_name(drawable->node), gf_node_get_name(drawable->node)));
return;
}
}
node_is_over = 0;
if (compositor_get_2d_plane_intersection(&r, &local_pt)) {
node_is_over = svg_drawable_is_over(drawable, local_pt.x, local_pt.y, asp, tr_state, NULL);
}
if (!node_is_over) return;
hit_normal.x = hit_normal.y = 0; hit_normal.z = FIX_ONE;
text_coords.x = gf_divfix(local_pt.x, drawable->path->bbox.width) + FIX_ONE/2;
text_coords.y = gf_divfix(local_pt.y, drawable->path->bbox.height) + FIX_ONE/2;
/*check distance from user and keep the closest hitpoint*/
world_pt = local_pt;
gf_mx_apply_vec(&tr_state->model_matrix, &world_pt);
for (i=0; i<tr_state->num_clip_planes; i++) {
if (gf_plane_get_distance(&tr_state->clip_planes[i], &world_pt) < 0) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[SVG Picking] node %s (def %s) is not in clipper half space\n", gf_node_get_class_name(drawable->node), gf_node_get_name(drawable->node)));
return;
}
}
gf_vec_diff(vdiff, world_pt, tr_state->ray.orig);
sqdist = gf_vec_lensq(vdiff);
if (compositor->hit_square_dist && (compositor->hit_square_dist+FIX_EPSILON<sqdist)) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[SVG Picking] node %s (def %s) is farther (%g) than current pick (%g)\n", gf_node_get_class_name(drawable->node), gf_node_get_name(drawable->node), FIX2FLT(sqdist), FIX2FLT(compositor->hit_square_dist)));
return;
}
compositor->hit_square_dist = sqdist;
/*also stack any VRML sensors present at the current level. If the event is not catched
by a listener in the SVG tree, the event will be forwarded to the VRML tree*/
gf_list_reset(compositor->sensors);
count = gf_list_count(tr_state->vrml_sensors);
for (i=0; i<count; i++) {
gf_list_add(compositor->sensors, gf_list_get(tr_state->vrml_sensors, i));
}
gf_mx_copy(compositor->hit_world_to_local, tr_state->model_matrix);
gf_mx_copy(compositor->hit_local_to_world, mx);
compositor->hit_local_point = local_pt;
compositor->hit_world_point = world_pt;
compositor->hit_world_ray = tr_state->ray;
compositor->hit_normal = hit_normal;
compositor->hit_texcoords = text_coords;
svg_clone_use_stack(compositor, tr_state);
/*not use in SVG patterns*/
compositor->hit_appear = NULL;
compositor->hit_node = drawable->node;
compositor->hit_text = NULL;
compositor->hit_use_dom_events = 1;
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[SVG Picking] node %s (def %s) is under mouse - hit %g %g %g\n", gf_node_get_class_name(drawable->node), gf_node_get_name(drawable->node),
FIX2FLT(world_pt.x), FIX2FLT(world_pt.y), FIX2FLT(world_pt.z)));
}
static void TraverseSound(GF_Node *node, void *rs, Bool is_destroy)
{
GF_TraverseState *tr_state = (GF_TraverseState*) rs;
M_Sound *snd = (M_Sound *)node;
SoundStack *st = (SoundStack *)gf_node_get_private(node);
if (is_destroy) {
gf_free(st);
return;
}
if (!snd->source) return;
tr_state->sound_holder = &st->snd_ifce;
/*forward in case we're switched off*/
if (tr_state->switched_off) {
gf_node_traverse((GF_Node *) snd->source, tr_state);
}
else if (tr_state->traversing_mode==TRAVERSE_GET_BOUNDS) {
/*we can't cull sound since*/
tr_state->disable_cull = 1;
} else if (tr_state->traversing_mode==TRAVERSE_SORT) {
GF_Matrix mx;
SFVec3f usr, snd_dir, pos;
Fixed mag, ang;
/*this implies no DEF/USE for real location...*/
gf_mx_copy(st->mx, tr_state->model_matrix);
gf_mx_copy(mx, tr_state->model_matrix);
gf_mx_inverse(&mx);
snd_dir = snd->direction;
gf_vec_norm(&snd_dir);
/*get user location*/
usr = tr_state->camera->position;
gf_mx_apply_vec(&mx, &usr);
/*recenter to ellipse focal*/
gf_vec_diff(usr, usr, snd->location);
mag = gf_vec_len(usr);
if (!mag) mag = FIX_ONE/10;
ang = gf_divfix(gf_vec_dot(snd_dir, usr), mag);
usr.z = gf_mulfix(ang, mag);
usr.x = gf_sqrt(gf_mulfix(mag, mag) - gf_mulfix(usr.z, usr.z));
usr.y = 0;
if (!gf_vec_equal(usr, st->last_pos)) {
st->intensity = snd_compute_gain(snd->minBack, snd->minFront, snd->maxBack, snd->maxFront, usr);
st->intensity = gf_mulfix(st->intensity, snd->intensity);
st->last_pos = usr;
}
st->identity = (st->intensity==FIX_ONE) ? 1 : 0;
if (snd->spatialize) {
Fixed ang, sign;
SFVec3f cross;
pos = snd->location;
gf_mx_apply_vec(&tr_state->model_matrix, &pos);
gf_vec_diff(pos, pos, tr_state->camera->position);
gf_vec_diff(usr, tr_state->camera->target, tr_state->camera->position);
gf_vec_norm(&pos);
gf_vec_norm(&usr);
ang = gf_acos(gf_vec_dot(usr, pos));
/*get orientation*/
cross = gf_vec_cross(usr, pos);
sign = gf_vec_dot(cross, tr_state->camera->up);
if (sign>0) ang *= -1;
ang = (FIX_ONE + gf_sin(ang)) / 2;
st->lgain = (FIX_ONE - gf_mulfix(ang, ang));
st->rgain = FIX_ONE - gf_mulfix(FIX_ONE - ang, FIX_ONE - ang);
/*renorm between 0 and 1*/
st->lgain = gf_mulfix(st->lgain, 4*st->intensity/3);
st->rgain = gf_mulfix(st->rgain, 4*st->intensity/3);
if (st->identity && ((st->lgain!=FIX_ONE) || (st->rgain!=FIX_ONE))) st->identity = 0;
} else {
st->lgain = st->rgain = FIX_ONE;
}
gf_node_traverse((GF_Node *) snd->source, tr_state);
}
tr_state->sound_holder = NULL;
}
static void TraverseLayer3D(GF_Node *node, void *rs, Bool is_destroy)
{
Bool prev_layer, changed = 0;
GF_List *oldb, *oldv, *oldf, *oldn;
GF_Rect rc;
u32 cur_lights;
GF_List *node_list_backup;
GF_BBox bbox_backup;
GF_Matrix model_backup;
GF_Matrix2D mx2d_backup;
GF_Camera *prev_cam;
GF_VisualManager *old_visual;
M_Layer3D *l = (M_Layer3D *)node;
Layer3DStack *st = (Layer3DStack *) gf_node_get_private(node);
GF_TraverseState *tr_state = (GF_TraverseState *) rs;
if (is_destroy) {
DestroyLayer3D(node);
return;
}
if (st->unsupported) return;
if (gf_node_dirty_get(node)) {
/*main visual in pixel metrics, use output width*/
if (tr_state->pixel_metrics && (tr_state->visual->compositor->visual==tr_state->visual)) {
st->clip.width = INT2FIX(tr_state->visual->compositor->vp_width);
st->clip.height = INT2FIX(tr_state->visual->compositor->vp_height);
} else {
visual_get_size_info(tr_state, &st->clip.width, &st->clip.height);
}
/*setup bounds in local coord system*/
if (l->size.x>=0) st->clip.width = l->size.x;
if (l->size.y>=0) st->clip.height = l->size.y;
st->clip = gf_rect_center(st->clip.width, st->clip.height);
changed = 1;
}
switch (tr_state->traversing_mode) {
case TRAVERSE_GET_BOUNDS:
if (!tr_state->for_node) {
tr_state->bounds = st->clip;
gf_bbox_from_rect(&tr_state->bbox, &st->clip);
return;
}
case TRAVERSE_PICK:
case TRAVERSE_SORT:
/*layers can only be used in a 2D context*/
if (tr_state->camera && tr_state->camera->is_3D) return;
break;
case TRAVERSE_DRAW_2D:
layer3d_draw_2d(node, tr_state);
return;
case TRAVERSE_DRAW_3D:
default:
return;
}
/*layer3D maintains its own stacks*/
oldb = tr_state->backgrounds;
oldv = tr_state->viewpoints;
oldf = tr_state->fogs;
oldn = tr_state->navigations;
tr_state->backgrounds = st->visual->back_stack;
tr_state->viewpoints = st->visual->view_stack;
tr_state->navigations = st->visual->navigation_stack;
tr_state->fogs = st->visual->fog_stack;
prev_layer = tr_state->is_layer;
tr_state->is_layer = 1;
prev_cam = tr_state->camera;
tr_state->camera = &st->visual->camera;
old_visual = tr_state->visual;
bbox_backup = tr_state->bbox;
gf_mx_copy(model_backup, tr_state->model_matrix);
gf_mx2d_copy(mx2d_backup, tr_state->transform);
/*compute viewport in visual coordinate*/
rc = st->clip;
if (prev_cam) {
gf_mx_apply_rect(&tr_state->model_matrix, &rc);
gf_mx_apply_rect(&prev_cam->modelview, &rc);
if (tr_state->camera->flags & CAM_HAS_VIEWPORT)
gf_mx_apply_rect(&prev_cam->viewport, &rc);
#if 0
if (tr_state->visual->compositor->visual==tr_state->visual) {
GF_Matrix mx;
gf_mx_init(mx);
gf_mx_add_scale(&mx, tr_state->visual->compositor->scale_x, tr_state->visual->compositor->scale_y, FIX_ONE);
gf_mx_apply_rect(&mx, &rc);
}
#endif
} else {
gf_mx2d_apply_rect(&tr_state->transform, &rc);
/* if (tr_state->visual->compositor->visual==tr_state->visual) {
gf_mx2d_init(mx2d_backup);
gf_mx2d_add_scale(&mx2d_backup, tr_state->visual->compositor->scale_x, tr_state->visual->compositor->scale_y);
gf_mx2d_apply_rect(&mx2d_backup, &rc);
}
*/
/*switch visual*/
tr_state->visual = st->visual;
}
/*check bindables*/
gf_mx_init(tr_state->model_matrix);
l3d_CheckBindables(node, tr_state, st->first);
if (prev_cam) gf_mx_copy(tr_state->model_matrix, model_backup);
/*drawing a layer means drawing all subelements as a whole (no depth sorting with parents)*/
if (tr_state->traversing_mode==TRAVERSE_SORT) {
if (gf_node_dirty_get(node)) changed = 1;
gf_node_dirty_clear(node, GF_SG_NODE_DIRTY|GF_SG_VRML_BINDABLE_DIRTY);
/*!! we were in a 2D mode, setup associated texture !!*/
if (!prev_cam) {
switch (layer3d_setup_offscreen(node, st, tr_state, rc.width, rc.height)) {
case 0:
goto l3d_exit;
case 2:
if (!changed && !(st->visual->camera.flags & CAM_IS_DIRTY) && !st->visual->camera.anim_len) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] No changes found , skipping 3D draw\n"));
goto layer3d_unchanged_2d;
}
default:
break;
}
#ifdef GPAC_USE_TINYGL
if (st->tgl_ctx) ostgl_make_current(st->tgl_ctx, 0);
#endif
/*note that we don't backup the state as a layer3D cannot be declared in a layer3D*/
tr_state->layer3d = node;
rc = st->vp;
/*setup GL*/
visual_3d_setup(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_PROJECTION);
visual_3d_matrix_reset(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_TEXTURE);
visual_3d_matrix_reset(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_MODELVIEW);
visual_3d_matrix_reset(tr_state->visual);
} else {
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_PROJECTION);
visual_3d_matrix_push(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_TEXTURE);
visual_3d_matrix_push(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_MODELVIEW);
visual_3d_matrix_push(tr_state->visual);
}
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] Redrawing\n"));
layer3d_setup_clip(st, tr_state, prev_cam ? 1 : 0, rc);
cur_lights = tr_state->visual->num_lights;
/*this will init projection. Note that we're binding the viewpoint in the current pixelMetrics context
even if the viewpoint was declared in an inline below
if no previous camera, we're using offscreen rendering, force clear */
visual_3d_init_draw(tr_state, prev_cam ? 1 : 2);
visual_3d_check_collisions(tr_state, l->children);
tr_state->traversing_mode = TRAVERSE_SORT;
/*shortcut node list*/
node_list_backup = tr_state->visual->alpha_nodes_to_draw;
tr_state->visual->alpha_nodes_to_draw = gf_list_new();
/*reset cull flag*/
tr_state->cull_flag = 0;
group_3d_traverse(node, (GroupingNode *)st, tr_state);
visual_3d_flush_contexts(tr_state->visual, tr_state);
gf_list_del(tr_state->visual->alpha_nodes_to_draw);
tr_state->visual->alpha_nodes_to_draw = node_list_backup;
while (cur_lights < tr_state->visual->num_lights) {
visual_3d_remove_last_light(tr_state->visual);
}
tr_state->traversing_mode = TRAVERSE_SORT;
if (prev_cam) {
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_PROJECTION);
visual_3d_matrix_pop(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_TEXTURE);
visual_3d_matrix_pop(tr_state->visual);
visual_3d_set_matrix_mode(tr_state->visual, V3D_MATRIX_MODELVIEW);
visual_3d_matrix_pop(tr_state->visual);
}
/*!! we were in a 2D mode, create drawable context!!*/
if (!prev_cam) {
DrawableContext *ctx;
/*with TinyGL we draw directly to the offscreen buffer*/
#ifndef GPAC_USE_TINYGL
gf_sc_copy_to_stencil(&st->txh);
#else
if (st->txh.pixelformat==GF_PIXEL_RGBDS)
gf_get_tinygl_depth(&st->txh);
#endif
if (tr_state->visual->compositor->rasterizer->stencil_texture_modified)
tr_state->visual->compositor->rasterizer->stencil_texture_modified(gf_sc_texture_get_stencil(&st->txh) );
gf_sc_texture_set_stencil(&st->txh, gf_sc_texture_get_stencil(&st->txh) );
changed = 1;
layer3d_unchanged_2d:
/*restore visual*/
tr_state->visual = old_visual;
tr_state->layer3d = NULL;
tr_state->appear = NULL;
// tr_state->camera = prev_cam;
ctx = drawable_init_context_mpeg4(st->drawable, tr_state);
if (!ctx) return;
ctx->aspect.fill_texture = &st->txh;
ctx->flags |= CTX_NO_ANTIALIAS;
if (changed) ctx->flags |= CTX_APP_DIRTY;
if (st->txh.transparent) ctx->flags |= CTX_IS_TRANSPARENT;
drawable_finalize_sort(ctx, tr_state, NULL);
}
}
/*check picking - we must fall in our 2D clipper except when mvt is grabbed on layer*/
else if (!gf_node_dirty_get(node) && (tr_state->traversing_mode==TRAVERSE_PICK)) {
GF_Ray prev_r;
SFVec3f start, end;
SFVec4f res;
Fixed in_x, in_y;
Bool do_pick = 0;
if (!prev_cam) rc = st->vp;
layer3d_setup_clip(st, tr_state, prev_cam ? 1 : 0, rc);
if (tr_state->visual->compositor->active_layer==node) {
do_pick = (tr_state->visual->compositor->grabbed_sensor || tr_state->visual->compositor->navigation_state) ? 1 : 0;
}
if (!prev_cam) gf_mx_from_mx2d(&tr_state->model_matrix, &tr_state->transform);
if (!do_pick && !gf_list_count(tr_state->visual->compositor->sensors))
do_pick = gf_sc_pick_in_clipper(tr_state, &st->clip);
if (!do_pick) goto l3d_exit;
prev_r = tr_state->ray;
compositor_get_2d_plane_intersection(&tr_state->ray, &start);
gf_mx_inverse(&tr_state->model_matrix);
gf_mx_apply_vec(&tr_state->model_matrix, &start);
if (tr_state->visual->compositor->visual==tr_state->visual) {
start.x = gf_mulfix(start.x, tr_state->visual->compositor->scale_x);
start.y = gf_mulfix(start.y, tr_state->visual->compositor->scale_y);
} else if (!prev_cam) {
start.x = gf_muldiv(start.x, st->visual->camera.width, st->clip.width);
start.y = gf_muldiv(start.y, st->visual->camera.height, st->clip.height);
}
visual_3d_setup_projection(tr_state, 1);
in_x = 2 * gf_divfix(start.x, st->visual->camera.width);
in_y = 2 * gf_divfix(start.y, st->visual->camera.height);
res.x = in_x; res.y = in_y; res.z = -FIX_ONE; res.q = FIX_ONE;
gf_mx_apply_vec_4x4(&st->visual->camera.unprojection, &res);
if (!res.q) goto l3d_exit;
start.x = gf_divfix(res.x, res.q);
start.y = gf_divfix(res.y, res.q);
start.z = gf_divfix(res.z, res.q);
res.x = in_x; res.y = in_y; res.z = FIX_ONE; res.q = FIX_ONE;
gf_mx_apply_vec_4x4(&st->visual->camera.unprojection, &res);
if (!res.q) goto l3d_exit;
end.x = gf_divfix(res.x, res.q);
end.y = gf_divfix(res.y, res.q);
end.z = gf_divfix(res.z, res.q);
tr_state->ray = gf_ray(start, end);
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] Picking: cast ray\n\tOrigin %.4f %.4f %.4f - End %.4f %.4f %.4f\n\tDir %.4f %.4f %.4f\n",
FIX2FLT(tr_state->ray.orig.x), FIX2FLT(tr_state->ray.orig.y), FIX2FLT(tr_state->ray.orig.z),
FIX2FLT(end.x), FIX2FLT(end.y), FIX2FLT(end.z),
FIX2FLT(tr_state->ray.dir.x), FIX2FLT(tr_state->ray.dir.y), FIX2FLT(tr_state->ray.dir.z)));
group_3d_traverse(node, (GroupingNode *)st, tr_state);
tr_state->ray = prev_r;
/*store info if navigation allowed - we just override any layer3D picked first since we are picking 2D
objects*/
if (tr_state->camera->navigate_mode || (tr_state->camera->navigation_flags & NAV_ANY))
tr_state->layer3d = node;
tr_state->traversing_mode = TRAVERSE_PICK;
}
l3d_exit:
/*restore camera*/
tr_state->camera = prev_cam;
if (prev_cam) visual_3d_set_viewport(tr_state->visual, tr_state->camera->vp);
tr_state->visual = old_visual;
/*restore traversing state*/
tr_state->backgrounds = oldb;
tr_state->viewpoints = oldv;
tr_state->fogs = oldf;
tr_state->navigations = oldn;
tr_state->bbox = bbox_backup;
tr_state->is_layer = prev_layer;
gf_mx_copy(tr_state->model_matrix, model_backup);
gf_mx2d_copy(tr_state->transform, mx2d_backup);
/*in case we missed bindables*/
if (st->first) {
st->first = 0;
gf_node_dirty_set(node, 0, 0);
gf_sc_invalidate(tr_state->visual->compositor, NULL);
}
}
void TraverseProximitySensor(GF_Node *node, void *rs, Bool is_destroy)
{
SFVec3f user_pos, dist, up;
SFRotation ori;
GF_Matrix mx;
GF_TraverseState *tr_state = (GF_TraverseState *)rs;
M_ProximitySensor *ps = (M_ProximitySensor *)node;
if (is_destroy) return;
if (tr_state->traversing_mode==TRAVERSE_GET_BOUNDS) {
/*work with twice bigger bbox to get sure we're notify when culled out*/
gf_vec_add(tr_state->bbox.max_edge, ps->center, ps->size);
gf_vec_diff(tr_state->bbox.min_edge, ps->center, ps->size);
gf_bbox_refresh(&tr_state->bbox);
return;
} else if (!ps->enabled || (tr_state->traversing_mode != TRAVERSE_SORT) ) return;
/*TODO FIXME - find a way to cache inverted matrix*/
gf_mx_copy(mx, tr_state->model_matrix);
gf_mx_inverse(&mx);
/*get use pos in local coord system*/
user_pos = tr_state->camera->position;
gf_mx_apply_vec(&mx, &user_pos);
gf_vec_diff(dist, user_pos, ps->center);
if (dist.x<0) dist.x *= -1;
if (dist.y<0) dist.y *= -1;
if (dist.z<0) dist.z *= -1;
if ((2*dist.x <= ps->size.x)
&& (2*dist.y <= ps->size.y)
&& (2*dist.z <= ps->size.z) ) {
if (!ps->isActive) {
ps->isActive = 1;
gf_node_event_out(node, 3/*"isActive"*/);
ps->enterTime = gf_node_get_scene_time(node);
gf_node_event_out(node, 6/*"enterTime"*/);
}
if ((ps->position_changed.x != user_pos.x)
|| (ps->position_changed.y != user_pos.y)
|| (ps->position_changed.z != user_pos.z) )
{
ps->position_changed = user_pos;
gf_node_event_out(node, 4/*"position_changed"*/);
}
dist = tr_state->camera->target;
gf_mx_apply_vec(&mx, &dist);
up = tr_state->camera->up;
gf_mx_apply_vec(&mx, &up);
ori = camera_get_orientation(user_pos, dist, tr_state->camera->up);
if ((ori.q != ps->orientation_changed.q)
|| (ori.x != ps->orientation_changed.x)
|| (ori.y != ps->orientation_changed.y)
|| (ori.z != ps->orientation_changed.z) ) {
ps->orientation_changed = ori;
gf_node_event_out(node, 5/*"orientation_changed"*/);
}
} else if (ps->isActive) {
ps->isActive = 0;
gf_node_event_out(node, 3/*"isActive"*/);
ps->exitTime = gf_node_get_scene_time(node);
gf_node_event_out(node, 7/*"exitTime"*/);
}
}
