Tex *give_current_material_texture(Material *ma)
{
MTex *mtex = NULL;
Tex *tex = NULL;
bNode *node;
if (ma && ma->use_nodes && ma->nodetree) {
/* first check texture, then material, this works together
* with a hack that clears the active ID flag for textures on
* making a material node active */
node = nodeGetActiveID(ma->nodetree, ID_TE);
if (node) {
tex = (Tex *)node->id;
ma = NULL;
}
}
if (ma) {
mtex = ma->mtex[(int)(ma->texact)];
if (mtex) tex = mtex->tex;
}
return tex;
}
void set_current_material_texture(Material *ma, Tex *newtex)
{
Tex *tex= NULL;
bNode *node;
if(ma && ma->use_nodes && ma->nodetree) {
node= nodeGetActiveID(ma->nodetree, ID_TE);
if(node) {
tex= (Tex *)node->id;
id_us_min(&tex->id);
node->id= &newtex->id;
id_us_plus(&newtex->id);
ma= NULL;
}
}
if(ma) {
int act= (int)ma->texact;
tex= (ma->mtex[act])? ma->mtex[act]->tex: NULL;
id_us_min(&tex->id);
if(newtex) {
if(!ma->mtex[act])
ma->mtex[act]= add_mtex();
ma->mtex[act]->tex= newtex;
id_us_plus(&newtex->id);
}
else if(ma->mtex[act]) {
MEM_freeN(ma->mtex[act]);
ma->mtex[act]= NULL;
}
}
}
bNode *give_current_material_texture_node(Material *ma)
{
if (ma && ma->use_nodes && ma->nodetree)
return nodeGetActiveID(ma->nodetree, ID_TE);
return NULL;
}
int has_current_material_texture(Material *ma)
{
bNode *node;
if (ma && ma->use_nodes && ma->nodetree) {
node = nodeGetActiveID(ma->nodetree, ID_TE);
if (node)
return 1;
}
return (ma != NULL);
}
void set_current_material_texture(Material *ma, Tex *newtex)
{
Tex *tex = NULL;
bNode *node;
if ((ma->use_nodes && ma->nodetree) &&
(node = nodeGetActiveID(ma->nodetree, ID_TE)))
{
tex = (Tex *)node->id;
id_us_min(&tex->id);
if (newtex) {
node->id = &newtex->id;
id_us_plus(&newtex->id);
}
else {
node->id = NULL;
}
}
else {
int act = (int)ma->texact;
tex = (ma->mtex[act]) ? ma->mtex[act]->tex : NULL;
id_us_min(&tex->id);
if (newtex) {
if (!ma->mtex[act]) {
ma->mtex[act] = BKE_texture_mtex_add();
/* Reset this slot's ON/OFF toggle, for materials, when slot was empty. */
ma->septex &= ~(1 << act);
/* For volumes the default UV texture coordinates are not available. */
if (ma->material_type == MA_TYPE_VOLUME) {
ma->mtex[act]->texco = TEXCO_ORCO;
}
}
ma->mtex[act]->tex = newtex;
id_us_plus(&newtex->id);
}
else if (ma->mtex[act]) {
MEM_freeN(ma->mtex[act]);
ma->mtex[act] = NULL;
}
}
}
