+static bool proc_mtledit(MetaScene *mscn, MaterialEdit *med, struct ts_node *node)
+{
+ if(strcmp(node->name, "mtledit") != 0) {
+ return false;
+ }
+
+ const char *restr = ".*";
+ struct ts_attr *amtl = ts_get_attr(node, "material");
+ if(amtl && amtl->val.type == TS_STRING) {
+ restr = amtl->val.str;
+ }
+ med->name_re = std::regex(restr);
+
+ node = node->child_list;
+ while(node) {
+ struct ts_node *cn = node;
+ node = node->next;
+
+ if(strcmp(cn->name, "texture") == 0) {
+ // add/change/remove a texture
+ struct ts_attr *atype = ts_get_attr(cn, "type");
+ struct ts_attr *afile = ts_get_attr(cn, "file");
+
+ int textype = MTL_TEX_DIFFUSE;
+ if(atype) {
+ if(atype->val.type == TS_STRING) {
+ textype = mtl_parse_type(atype->val.str);
+ } else if(atype->val.type == TS_NUMBER) {
+ textype = atype->val.inum;
+ if(textype < 0 || textype >= NUM_MTL_TEXTURES) {
+ error_log("invalid texture in mtledit: %d\n", textype);
+ continue;
+ }
+ } else {
+ error_log("unexpected texture type in mtledit: %s\n", atype->val.str);
+ continue;
+ }
+ }
+
+ med->tex.attr = textype;
+
+ if(!afile || !afile->val.str || !*afile->val.str) {
+ // remove
+ med->tex.tex = 0;
+ } else {
+ med->tex.tex = texman.get_texture(afile->val.str, TEX_2D, &mscn->datamap);
+ }
+
+ med->type = MTL_EDIT_TEXTURE;
+ break;
+ }
+
+ if(strcmp(cn->name, "mirror") == 0) {
+ // make this object a flat mirror (hopefully the object is flat otherwise this won't work)
+ float refl = 1.0f;
+
+ struct ts_attr *arefl = ts_get_attr(cn, "reflect");
+ if(arefl) {
+ if(arefl->val.type == TS_NUMBER) {
+ refl = arefl->val.fnum;
+ } else {
+ error_log("invalid reflect attribute in mirror mtledit: %s\n", arefl->val.str);
+ continue;
+ }
+ }
+
+ med->type = MTL_EDIT_MIRROR;
+ med->mirror.reflectivity = refl;
+ break;
+ }
+ }
+
+ return true;
+}
+
+static void apply_mtledit(Scene *scn, const MaterialEdit &med)
+{
+ // search all the objects to find matching material names
+ int nobj = scn->objects.size();
+ for(int i=0; i<nobj; i++) {
+ Object *obj = scn->objects[i];
+ if(std::regex_match(obj->mtl.name, med.name_re)) {
+ apply_mtledit(&obj->mtl, med);
+ }
+ }
+}
+
+static bool proc_music(MetaScene *mscn, struct ts_node *node)
+{
+ const char *fname = ts_get_attr_str(node, "file");
+ if(fname) {
+ SceneData *sdat = new SceneData;
+ sdat->meta = mscn;
+
+ // datapath
+ struct ts_attr *adpath = attr_inscope(node, "datapath");
+ if(adpath && adpath->val.type == TS_STRING) {
+ mscn->datamap.set_path(adpath->val.str);
+ }
+
+ int namesz = mscn->datamap.lookup(fname, 0, 0);
+ char *namebuf = (char*)alloca(namesz + 1);
+ if(mscn->datamap.lookup(fname, namebuf, namesz + 1)) {
+ fname = namebuf;
+ }
+
+ OggVorbisStream *ovstream = new OggVorbisStream;
+ if(!ovstream->open(fname)) {
+ delete ovstream;
+ return false;
+ }
+
+ delete mscn->music;
+ mscn->music = ovstream;
+ }
+ return true;
+}
+
+static void apply_mtledit(Material *mtl, const MaterialEdit &med)
+{
+ // TODO more edit modes...
+ switch(med.type) {
+ case MTL_EDIT_TEXTURE:
+ if(med.tex.tex) {
+ mtl->add_texture(med.tex.tex, med.tex.attr);
+ } else {
+ Texture *tex = mtl->stdtex[med.tex.attr];
+ if(tex) {
+ mtl->remove_texture(tex);
+ }
+ }
+ break;
+
+ case MTL_EDIT_MIRROR:
+ mtl->flat_mirror = med.mirror.reflectivity > 1e-6;
+ mtl->reflect = med.mirror.reflectivity;
+ break;
+ }
+}
+