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Authored by Johnny Matthews (guitargeek) on Jan 12 2022, 8:11 PM.
/* Function to do Additions */
/**
* If the node is a Triangulate Mesh node and has the Minimum Vertices input, update it to the new
* version and add 2 nodes before it. Add the Face Neighbors (Vertex Count Socket) node going into
* a compare node (integer type, greater than or equal mode) first socket. The second socket value
* is set to the old value of Minimum Vertices. The output of the compare node is put in the
* Selection socket of Triangulate.
*/
static void version_geometry_nodes_update_triangulate_node(bNodeTree *ntree)
{
LISTBASE_FOREACH_MUTABLE (bNode *, node, &ntree->nodes) {
if (node->type != GEO_NODE_TRIANGULATE) {
continue;
}
bNodeSocket *geometry_socket = node->inputs.first;
bNodeSocket *second_socket = geometry_socket->next;
if (STREQ(geometry_socket->next->name, "Selection")) {
return;
}
const bNodeSocketValueInt *socket_value = (const bNodeSocketValueInt *)
second_socket->default_value;
nodeRemoveSocket(ntree, node, second_socket);
bNodeSocket *selection_socket = nodeAddSocket(ntree,
node,
SOCK_IN,
nodeStaticSocketType(SOCK_BOOLEAN, PROP_NONE),
"Selection",
"Selection");
bNode *compare_node = nodeAddStaticNode(NULL, ntree, FN_NODE_COMPARE);
compare_node->parent = node->parent;
compare_node->locx = node->locx - 175.0f;
compare_node->locy = node->locy;
NodeFunctionCompare *data = MEM_callocN(sizeof(NodeFunctionCompare), __func__);
data->data_type = CD_PROP_INT32;
data->mode = NODE_COMPARE_GREATER_EQUAL;
compare_node->storage = data;
bNodeSocket *b_socket = compare_node->inputs.last;
b_socket->default_value = socket_value;
nodeAddLink(ntree, compare_node, compare_node->outputs.first, node, selection_socket);
bNode *face_neighbors = nodeAddStaticNode(NULL, ntree, GEO_NODE_INPUT_MESH_FACE_NEIGHBORS);
face_neighbors->parent = node->parent;
face_neighbors->locx = compare_node->locx - 175.0f;
face_neighbors->locy = compare_node->locy;
nodeAddLink(ntree,
face_neighbors,
face_neighbors->outputs.first,
compare_node,
compare_node->inputs.last);
}
}
/* In the "Save this block" block */
/* Add extra nodes for Triangulate changes. */
LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
if (ntree->type == NTREE_GEOMETRY) {
version_geometry_nodes_update_triangulate_node(ntree);
}
}

Event Timeline

Johnny Matthews (guitargeek) created this paste.Jan 12 2022, 8:11 PM