static void node_group_output_update(bNodeTree *ntree, bNode *node)
{
bNodeSocket *extsock = node->inputs.last;
bNodeLink *link, *linknext, *exposelink;
/* Adding a tree socket and verifying will remove the extension socket!
* This list caches the existing links to the extension socket
* so they can be recreated after verification.
*/
ListBase tmplinks;
/* find links to the extension socket and store them */
BLI_listbase_clear(&tmplinks);
for (link = ntree->links.first; link; link = linknext) {
linknext = link->next;
if (nodeLinkIsHidden(link))
continue;
if (link->tosock == extsock) {
bNodeLink *tlink = MEM_callocN(sizeof(bNodeLink), "temporary link");
*tlink = *link;
BLI_addtail(&tmplinks, tlink);
nodeRemLink(ntree, link);
}
}
/* find valid link to expose */
exposelink = NULL;
for (link = tmplinks.first; link; link = link->next) {
/* XXX Multiple sockets can be connected to the extension socket at once,
* in that case the arbitrary first link determines name and type.
* This could be improved by choosing the "best" type among all links,
* whatever that means.
*/
if (link->fromsock->type != SOCK_CUSTOM) {
exposelink = link;
break;
}
}
if (exposelink) {
bNodeSocket *gsock, *newsock;
/* XXX what if connecting virtual to virtual socket?? */
gsock = ntreeAddSocketInterfaceFromSocket(ntree, exposelink->fromnode, exposelink->fromsock);
node_group_output_verify(ntree, node, (ID *)ntree);
newsock = node_group_output_find_socket(node, gsock->identifier);
/* redirect links to the extension socket */
for (link = tmplinks.first; link; link = link->next) {
nodeAddLink(ntree, link->fromnode, link->fromsock, node, newsock);
}
}
BLI_freelistN(&tmplinks);
}
/* /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// */
static int connect_nodes(Main *bmain, bNodeTree *ntree, bNode *node_fr, bNodeSocket *sock_fr, bNode *node_to, bNodeSocket *sock_to)
{
bNodeLink *link = nodeAddLink(ntree, node_fr, sock_fr, node_to, sock_to);
ntreeUpdateTree(bmain, ntree);
if (!(link->flag & NODE_LINK_VALID)) {
nodeRemLink(ntree, link);
return 0;
}
return 1;
} /* connect_nodes() */
/* disconnect socket from the node it is connected to */
static void node_socket_disconnect(Main *bmain, bNodeTree *ntree, bNode *node_to, bNodeSocket *sock_to)
{
if (!sock_to->link)
return;
nodeRemLink(ntree, sock_to->link);
nodeUpdate(ntree, node_to);
ntreeUpdateTree(ntree);
ED_node_generic_update(bmain, ntree, node_to);
}
/* disconnect socket from the node it is connected to */
static void node_socket_disconnect(Main *bmain, bNodeTree *ntree, bNode *node_to, bNodeSocket *sock_to)
{
if (!sock_to->link)
return;
nodeRemLink(ntree, sock_to->link);
sock_to->flag |= SOCK_COLLAPSED;
nodeUpdate(ntree, node_to);
ntreeUpdateTree(bmain, ntree);
ED_node_tag_update_nodetree(bmain, ntree);
}
/* Re-link displacement output to unconnected normal sockets via bump node.
* This way material with have proper displacement in the viewport.
*/
static void ntree_shader_relink_displacement(bNodeTree *ntree,
short compatibility)
{
if (compatibility != NODE_NEW_SHADING) {
/* We can only deal with new shading system here. */
return;
}
bNode *displacement_node;
bNodeSocket *displacement_socket;
bNodeLink *displacement_link;
if (!ntree_shader_has_displacement(ntree,
&displacement_node,
&displacement_socket,
&displacement_link))
{
/* There is no displacement output connected, nothing to re-link. */
return;
}
/* We have to disconnect displacement output socket, otherwise we'll have
* cycles in the Cycles material :)
*/
nodeRemLink(ntree, displacement_link);
/* We can't connect displacement to normal directly, use bump node for that
* and hope that it gives good enough approximation.
*/
bNode *bump_node = nodeAddStaticNode(NULL, ntree, SH_NODE_BUMP);
bNodeSocket *bump_input_socket = ntree_shader_node_find_input(bump_node, "Height");
bNodeSocket *bump_output_socket = ntree_shader_node_find_output(bump_node, "Normal");
BLI_assert(bump_input_socket != NULL);
BLI_assert(bump_output_socket != NULL);
/* Connect bump node to where displacement output was originally
* connected to.
*/
nodeAddLink(ntree,
displacement_node, displacement_socket,
bump_node, bump_input_socket);
/* Connect all free-standing Normal inputs. */
ntree_shader_link_builtin_normal(ntree,
bump_node,
bump_output_socket,
displacement_node,
displacement_socket);
/* TODO(sergey): Reconnect Geometry Info->Normal sockets to the new
* bump node.
*/
/* We modified the tree, it needs to be updated now. */
ntreeUpdateTree(G.main, ntree);
}
static void node_rem_socklist_links(bNodeTree *ntree, ListBase *lb)
{
bNodeLink *link, *next;
bNodeSocket *sock;
if (!lb) return;
for (sock= lb->first; sock; sock= sock->next) {
for (link= ntree->links.first; link; link= next) {
next= link->next;
if (link->fromsock==sock || link->tosock==sock) {
nodeRemLink(ntree, link);
}
}
}
}
static void node_group_make_insert_selected(const bContext *C, bNodeTree *ntree, bNode *gnode)
{
bNodeTree *ngroup = (bNodeTree *)gnode->id;
bNodeLink *link, *linkn;
bNode *node, *nextn;
bNodeSocket *sock;
ListBase anim_basepaths = {NULL, NULL};
float min[2], max[2], center[2];
int totselect;
int expose_all = FALSE;
bNode *input_node, *output_node;
/* XXX rough guess, not nice but we don't have access to UI constants here ... */
static const float offsetx = 200;
static const float offsety = 0.0f;
/* deselect all nodes in the target tree */
for (node = ngroup->nodes.first; node; node = node->next)
nodeSetSelected(node, FALSE);
totselect = node_get_selected_minmax(ntree, gnode, min, max);
add_v2_v2v2(center, min, max);
mul_v2_fl(center, 0.5f);
/* auto-add interface for "solo" nodes */
if (totselect == 1)
expose_all = TRUE;
/* move nodes over */
for (node = ntree->nodes.first; node; node = nextn) {
nextn = node->next;
if (node_group_make_use_node(node, gnode)) {
/* keep track of this node's RNA "base" path (the part of the pat identifying the node)
* if the old nodetree has animation data which potentially covers this node
*/
if (ntree->adt) {
PointerRNA ptr;
char *path;
RNA_pointer_create(&ntree->id, &RNA_Node, node, &ptr);
path = RNA_path_from_ID_to_struct(&ptr);
if (path)
BLI_addtail(&anim_basepaths, BLI_genericNodeN(path));
}
/* ensure valid parent pointers, detach if parent stays outside the group */
if (node->parent && !(node->parent->flag & NODE_SELECT))
nodeDetachNode(node);
/* change node-collection membership */
BLI_remlink(&ntree->nodes, node);
BLI_addtail(&ngroup->nodes, node);
/* ensure unique node name in the ngroup */
nodeUniqueName(ngroup, node);
}
}
/* move animation data over */
if (ntree->adt) {
LinkData *ld, *ldn = NULL;
BKE_animdata_separate_by_basepath(&ntree->id, &ngroup->id, &anim_basepaths);
/* paths + their wrappers need to be freed */
for (ld = anim_basepaths.first; ld; ld = ldn) {
ldn = ld->next;
MEM_freeN(ld->data);
BLI_freelinkN(&anim_basepaths, ld);
}
}
/* node groups don't use internal cached data */
ntreeFreeCache(ngroup);
/* create input node */
input_node = nodeAddStaticNode(C, ngroup, NODE_GROUP_INPUT);
input_node->locx = min[0] - center[0] - offsetx;
input_node->locy = -offsety;
/* create output node */
output_node = nodeAddStaticNode(C, ngroup, NODE_GROUP_OUTPUT);
output_node->locx = max[0] - center[0] + offsetx;
output_node->locy = -offsety;
/* relink external sockets */
for (link = ntree->links.first; link; link = linkn) {
int fromselect = node_group_make_use_node(link->fromnode, gnode);
int toselect = node_group_make_use_node(link->tonode, gnode);
linkn = link->next;
if ((fromselect && link->tonode == gnode) || (toselect && link->fromnode == gnode)) {
/* remove all links to/from the gnode.
* this can remove link information, but there's no general way to preserve it.
*/
nodeRemLink(ntree, link);
}
else if (fromselect && toselect) {
BLI_remlink(&ntree->links, link);
BLI_addtail(&ngroup->links, link);
}
else if (toselect) {
bNodeSocket *iosock = ntreeAddSocketInterfaceFromSocket(ngroup, link->tonode, link->tosock);
bNodeSocket *input_sock;
/* update the group node and interface node sockets,
* so the new interface socket can be linked.
*/
node_group_verify(ntree, gnode, (ID *)ngroup);
node_group_input_verify(ngroup, input_node, (ID *)ngroup);
/* create new internal link */
input_sock = node_group_input_find_socket(input_node, iosock->identifier);
nodeAddLink(ngroup, input_node, input_sock, link->tonode, link->tosock);
/* redirect external link */
link->tonode = gnode;
link->tosock = node_group_find_input_socket(gnode, iosock->identifier);
}
else if (fromselect) {
bNodeSocket *iosock = ntreeAddSocketInterfaceFromSocket(ngroup, link->fromnode, link->fromsock);
bNodeSocket *output_sock;
/* update the group node and interface node sockets,
* so the new interface socket can be linked.
*/
node_group_verify(ntree, gnode, (ID *)ngroup);
node_group_output_verify(ngroup, output_node, (ID *)ngroup);
/* create new internal link */
output_sock = node_group_output_find_socket(output_node, iosock->identifier);
nodeAddLink(ngroup, link->fromnode, link->fromsock, output_node, output_sock);
/* redirect external link */
link->fromnode = gnode;
link->fromsock = node_group_find_output_socket(gnode, iosock->identifier);
}
}
/* move nodes in the group to the center */
for (node = ngroup->nodes.first; node; node = node->next) {
if (node_group_make_use_node(node, gnode) && !node->parent) {
node->locx -= center[0];
node->locy -= center[1];
}
}
/* expose all unlinked sockets too */
if (expose_all) {
for (node = ngroup->nodes.first; node; node = node->next) {
if (node_group_make_use_node(node, gnode)) {
for (sock = node->inputs.first; sock; sock = sock->next) {
bNodeSocket *iosock, *input_sock;
int skip = FALSE;
for (link = ngroup->links.first; link; link = link->next) {
if (link->tosock == sock) {
skip = TRUE;
break;
}
}
if (skip)
continue;
iosock = ntreeAddSocketInterfaceFromSocket(ngroup, node, sock);
node_group_input_verify(ngroup, input_node, (ID *)ngroup);
/* create new internal link */
input_sock = node_group_input_find_socket(input_node, iosock->identifier);
nodeAddLink(ngroup, input_node, input_sock, node, sock);
}
for (sock = node->outputs.first; sock; sock = sock->next) {
bNodeSocket *iosock, *output_sock;
int skip = FALSE;
for (link = ngroup->links.first; link; link = link->next)
if (link->fromsock == sock)
skip = TRUE;
if (skip)
continue;
iosock = ntreeAddSocketInterfaceFromSocket(ngroup, node, sock);
node_group_output_verify(ngroup, output_node, (ID *)ngroup);
/* create new internal link */
output_sock = node_group_output_find_socket(output_node, iosock->identifier);
nodeAddLink(ngroup, node, sock, output_node, output_sock);
}
}
}
}
/* update of the group tree */
ngroup->update |= NTREE_UPDATE | NTREE_UPDATE_LINKS;
/* update of the tree containing the group instance node */
ntree->update |= NTREE_UPDATE_NODES | NTREE_UPDATE_LINKS;
}
/* returns 1 if its OK */
static int node_group_separate_selected(bNodeTree *ntree, bNodeTree *ngroup, float offx, float offy, int make_copy)
{
bNodeLink *link, *link_next;
bNode *node, *node_next, *newnode;
ListBase anim_basepaths = {NULL, NULL};
/* deselect all nodes in the target tree */
for (node = ntree->nodes.first; node; node = node->next)
nodeSetSelected(node, FALSE);
/* clear new pointers, set in nodeCopyNode */
for (node = ngroup->nodes.first; node; node = node->next)
node->new_node = NULL;
/* add selected nodes into the ntree */
for (node = ngroup->nodes.first; node; node = node_next) {
node_next = node->next;
if (!(node->flag & NODE_SELECT))
continue;
/* ignore interface nodes */
if (ELEM(node->type, NODE_GROUP_INPUT, NODE_GROUP_OUTPUT)) {
nodeSetSelected(node, FALSE);
continue;
}
if (make_copy) {
/* make a copy */
newnode = nodeCopyNode(ngroup, node);
}
else {
/* use the existing node */
newnode = node;
}
/* keep track of this node's RNA "base" path (the part of the path identifying the node)
* if the old nodetree has animation data which potentially covers this node
*/
if (ngroup->adt) {
PointerRNA ptr;
char *path;
RNA_pointer_create(&ngroup->id, &RNA_Node, newnode, &ptr);
path = RNA_path_from_ID_to_struct(&ptr);
if (path)
BLI_addtail(&anim_basepaths, BLI_genericNodeN(path));
}
/* ensure valid parent pointers, detach if parent stays inside the group */
if (newnode->parent && !(newnode->parent->flag & NODE_SELECT))
nodeDetachNode(newnode);
/* migrate node */
BLI_remlink(&ngroup->nodes, newnode);
BLI_addtail(&ntree->nodes, newnode);
/* ensure unique node name in the node tree */
nodeUniqueName(ntree, newnode);
if (!newnode->parent) {
newnode->locx += offx;
newnode->locy += offy;
}
}
/* add internal links to the ntree */
for (link = ngroup->links.first; link; link = link_next) {
int fromselect = (link->fromnode && (link->fromnode->flag & NODE_SELECT));
int toselect = (link->tonode && (link->tonode->flag & NODE_SELECT));
link_next = link->next;
if (make_copy) {
/* make a copy of internal links */
if (fromselect && toselect)
nodeAddLink(ntree, link->fromnode->new_node, link->fromsock->new_sock, link->tonode->new_node, link->tosock->new_sock);
}
else {
/* move valid links over, delete broken links */
if (fromselect && toselect) {
BLI_remlink(&ngroup->links, link);
BLI_addtail(&ntree->links, link);
}
else if (fromselect || toselect) {
nodeRemLink(ngroup, link);
}
}
}
/* and copy across the animation,
* note that the animation data's action can be NULL here */
if (ngroup->adt) {
LinkData *ld, *ldn = NULL;
/* now perform the moving */
BKE_animdata_separate_by_basepath(&ngroup->id, &ntree->id, &anim_basepaths);
/* paths + their wrappers need to be freed */
for (ld = anim_basepaths.first; ld; ld = ldn) {
ldn = ld->next;
MEM_freeN(ld->data);
BLI_freelinkN(&anim_basepaths, ld);
}
}
ntree->update |= NTREE_UPDATE_NODES | NTREE_UPDATE_LINKS;
if (!make_copy)
ngroup->update |= NTREE_UPDATE_NODES | NTREE_UPDATE_LINKS;
return 1;
}
/* add new node connected to this socket, or replace an existing one */
static void node_socket_add_replace(const bContext *C, bNodeTree *ntree, bNode *node_to, bNodeSocket *sock_to,
int type, NodeLinkItem *item)
{
bNode *node_from;
bNodeSocket *sock_from_tmp;
bNode *node_prev = NULL;
/* unlink existing node */
if (sock_to->link) {
node_prev = sock_to->link->fromnode;
nodeRemLink(ntree, sock_to->link);
}
/* find existing node that we can use */
for (node_from = ntree->nodes.first; node_from; node_from = node_from->next)
if (node_from->type == type)
break;
if (node_from)
if (node_from->inputs.first || node_from->typeinfo->draw_buttons || node_from->typeinfo->draw_buttons_ex)
node_from = NULL;
if (node_prev && node_prev->type == type && node_link_item_compare(node_prev, item)) {
/* keep the previous node if it's the same type */
node_from = node_prev;
}
else if (!node_from) {
node_from = nodeAddStaticNode(C, ntree, type);
if (node_prev != NULL) {
/* If we're replacing existing node, use it's location. */
node_from->locx = node_prev->locx;
node_from->locy = node_prev->locy;
node_from->offsetx = node_prev->offsetx;
node_from->offsety = node_prev->offsety;
}
else {
/* Avoid exact intersection of nodes.
* TODO(sergey): Still not ideal, but better than nothing.
*/
int index = BLI_findindex(&node_to->inputs, sock_to);
BLI_assert(index != -1);
node_from->locx = node_to->locx - (node_from->typeinfo->width + 50);
node_from->locy = node_to->locy - (node_from->typeinfo->height * index);
}
node_link_item_apply(node_from, item);
}
nodeSetActive(ntree, node_from);
/* add link */
sock_from_tmp = BLI_findlink(&node_from->outputs, item->socket_index);
nodeAddLink(ntree, node_from, sock_from_tmp, node_to, sock_to);
sock_to->flag &= ~SOCK_COLLAPSED;
/* copy input sockets from previous node */
if (node_prev && node_from != node_prev) {
bNodeSocket *sock_prev, *sock_from;
for (sock_prev = node_prev->inputs.first; sock_prev; sock_prev = sock_prev->next) {
for (sock_from = node_from->inputs.first; sock_from; sock_from = sock_from->next) {
if (nodeCountSocketLinks(ntree, sock_from) >= sock_from->limit)
continue;
if (STREQ(sock_prev->name, sock_from->name) && sock_prev->type == sock_from->type) {
bNodeLink *link = sock_prev->link;
if (link && link->fromnode) {
nodeAddLink(ntree, link->fromnode, link->fromsock, node_from, sock_from);
nodeRemLink(ntree, link);
}
node_socket_copy_default_value(sock_from, sock_prev);
}
}
}
/* also preserve mapping for texture nodes */
if (node_from->typeinfo->nclass == NODE_CLASS_TEXTURE &&
node_prev->typeinfo->nclass == NODE_CLASS_TEXTURE)
{
memcpy(node_from->storage, node_prev->storage, sizeof(NodeTexBase));
}
/* remove node */
node_remove_linked(ntree, node_prev);
}
nodeUpdate(ntree, node_from);
nodeUpdate(ntree, node_to);
ntreeUpdateTree(CTX_data_main(C), ntree);
ED_node_tag_update_nodetree(CTX_data_main(C), ntree);
}
/* returns 1 if its OK */
int node_group_ungroup(bNodeTree *ntree, bNode *gnode)
{
bNodeLink *link, *linkn;
bNode *node, *nextn;
bNodeTree *ngroup, *wgroup;
ListBase anim_basepaths = {NULL, NULL};
ngroup= (bNodeTree *)gnode->id;
if(ngroup==NULL) return 0;
/* clear new pointers, set in copytree */
for(node= ntree->nodes.first; node; node= node->next)
node->new_node= NULL;
/* wgroup is a temporary copy of the NodeTree we're merging in
* - all of wgroup's nodes are transferred across to their new home
* - ngroup (i.e. the source NodeTree) is left unscathed
*/
wgroup= ntreeCopyTree(ngroup);
/* add the nodes into the ntree */
for(node= wgroup->nodes.first; node; node= nextn) {
nextn= node->next;
/* keep track of this node's RNA "base" path (the part of the pat identifying the node)
* if the old nodetree has animation data which potentially covers this node
*/
if (wgroup->adt) {
PointerRNA ptr;
char *path;
RNA_pointer_create(&wgroup->id, &RNA_Node, node, &ptr);
path = RNA_path_from_ID_to_struct(&ptr);
if (path)
BLI_addtail(&anim_basepaths, BLI_genericNodeN(path));
}
/* migrate node */
BLI_remlink(&wgroup->nodes, node);
BLI_addtail(&ntree->nodes, node);
node->locx+= gnode->locx;
node->locy+= gnode->locy;
node->flag |= NODE_SELECT;
}
/* restore external links to and from the gnode */
for(link= ntree->links.first; link; link= link->next) {
if (link->fromnode==gnode) {
if (link->fromsock->groupsock) {
bNodeSocket *gsock= link->fromsock->groupsock;
if (gsock->link) {
if (gsock->link->fromnode) {
/* NB: using the new internal copies here! the groupsock pointer still maps to the old tree */
link->fromnode = (gsock->link->fromnode ? gsock->link->fromnode->new_node : NULL);
link->fromsock = gsock->link->fromsock->new_sock;
}
else {
/* group output directly maps to group input */
bNodeSocket *insock= node_group_find_input(gnode, gsock->link->fromsock);
if (insock->link) {
link->fromnode = insock->link->fromnode;
link->fromsock = insock->link->fromsock;
}
}
}
else {
/* copy the default input value from the group socket default to the external socket */
convert_socket_value(gsock, link->tosock);
}
}
}
}
/* remove internal output links, these are not used anymore */
for(link=wgroup->links.first; link; link= linkn) {
linkn = link->next;
if (!link->tonode)
nodeRemLink(wgroup, link);
}
/* restore links from internal nodes */
for(link= wgroup->links.first; link; link= link->next) {
/* indicates link to group input */
if (!link->fromnode) {
/* NB: can't use find_group_node_input here,
* because gnode sockets still point to the old tree!
*/
bNodeSocket *insock;
for (insock= gnode->inputs.first; insock; insock= insock->next)
if (insock->groupsock->new_sock == link->fromsock)
break;
if (insock->link) {
link->fromnode = insock->link->fromnode;
link->fromsock = insock->link->fromsock;
}
else {
/* copy the default input value from the group node socket default to the internal socket */
convert_socket_value(insock, link->tosock);
nodeRemLink(wgroup, link);
}
}
}
/* add internal links to the ntree */
for(link= wgroup->links.first; link; link= linkn) {
linkn= link->next;
BLI_remlink(&wgroup->links, link);
BLI_addtail(&ntree->links, link);
}
/* and copy across the animation */
if (wgroup->adt) {
LinkData *ld, *ldn=NULL;
bAction *waction;
/* firstly, wgroup needs to temporary dummy action that can be destroyed, as it shares copies */
waction = wgroup->adt->action = copy_action(wgroup->adt->action);
/* now perform the moving */
BKE_animdata_separate_by_basepath(&wgroup->id, &ntree->id, &anim_basepaths);
/* paths + their wrappers need to be freed */
for (ld = anim_basepaths.first; ld; ld = ldn) {
ldn = ld->next;
MEM_freeN(ld->data);
BLI_freelinkN(&anim_basepaths, ld);
}
/* free temp action too */
free_libblock(&G.main->action, waction);
}
/* delete the group instance. this also removes old input links! */
nodeFreeNode(ntree, gnode);
/* free the group tree (takes care of user count) */
free_libblock(&G.main->nodetree, wgroup);
ntree->update |= NTREE_UPDATE_NODES|NTREE_UPDATE_LINKS;
ntreeUpdateTree(ntree);
return 1;
}
/* add new node connected to this socket, or replace an existing one */
static void node_socket_add_replace(Main *bmain, bNodeTree *ntree, bNode *node_to, bNodeSocket *sock_to, bNodeTemplate *ntemp, int sock_num)
{
bNode *node_from;
bNodeSocket *sock_from;
bNode *node_prev = NULL;
/* unlink existing node */
if (sock_to->link) {
node_prev = sock_to->link->fromnode;
nodeRemLink(ntree, sock_to->link);
}
/* find existing node that we can use */
for (node_from=ntree->nodes.first; node_from; node_from=node_from->next)
if (node_from->type == ntemp->type)
break;
if (node_from)
if (!(node_from->inputs.first == NULL && !(node_from->typeinfo->flag & NODE_OPTIONS)))
node_from = NULL;
if (node_prev && node_prev->type == ntemp->type &&
(ntemp->type != NODE_GROUP || node_prev->id == &ntemp->ngroup->id)) {
/* keep the previous node if it's the same type */
node_from = node_prev;
}
else if (!node_from) {
node_from= nodeAddNode(ntree, ntemp);
node_from->locx = node_to->locx - (node_from->typeinfo->width + 50);
node_from->locy = node_to->locy;
if (node_from->id)
id_us_plus(node_from->id);
}
nodeSetActive(ntree, node_from);
/* add link */
sock_from = BLI_findlink(&node_from->outputs, sock_num);
nodeAddLink(ntree, node_from, sock_from, node_to, sock_to);
/* copy input sockets from previous node */
if (node_prev && node_from != node_prev) {
bNodeSocket *sock_prev, *sock_from;
for (sock_prev=node_prev->inputs.first; sock_prev; sock_prev=sock_prev->next) {
for (sock_from=node_from->inputs.first; sock_from; sock_from=sock_from->next) {
if (nodeCountSocketLinks(ntree, sock_from) >= sock_from->limit)
continue;
if (strcmp(sock_prev->name, sock_from->name) == 0 && sock_prev->type == sock_from->type) {
bNodeLink *link = sock_prev->link;
if (link && link->fromnode) {
nodeAddLink(ntree, link->fromnode, link->fromsock, node_from, sock_from);
nodeRemLink(ntree, link);
}
node_socket_free_default_value(sock_from->type, sock_from->default_value);
sock_from->default_value = node_socket_make_default_value(sock_from->type);
node_socket_copy_default_value(sock_from->type, sock_from->default_value, sock_prev->default_value);
}
}
}
/* also preserve mapping for texture nodes */
if (node_from->typeinfo->nclass == NODE_CLASS_TEXTURE &&
node_prev->typeinfo->nclass == NODE_CLASS_TEXTURE)
{
memcpy(node_from->storage, node_prev->storage, sizeof(NodeTexBase));
}
/* remove node */
node_remove_linked(ntree, node_prev);
}
nodeUpdate(ntree, node_from);
nodeUpdate(ntree, node_to);
ntreeUpdateTree(ntree);
ED_node_generic_update(bmain, ntree, node_to);
}