ModelData:getMetadata;

src/api/l_data_modelData.c

@@ -62,6 +62,18 @@ static ModelAnimation* luax_checkanimation(lua_State* L, int index, ModelData* m
   }
 }
 
+static int l_lovrModelDataGetMetadata(lua_State* L) {
+  ModelData* model = luax_checktype(L, 1, ModelData);
+
+  if (!model->metadata || model->metadataSize == 0) {
+    lua_pushnil(L);
+  } else {
+    lua_pushlstring(L, model->metadata, model->metadataSize);
+  }
+
+  return 1;
+}
+
 static int l_lovrModelDataGetBlobCount(lua_State* L) {
   ModelData* model = luax_checktype(L, 1, ModelData);
   lua_pushinteger(L, model->blobCount);
@@ -731,6 +743,7 @@ static int l_lovrModelDataGetSkinInverseBindMatrix(lua_State* L) {
 }
 
 const luaL_Reg lovrModelData[] = {
+  { "getMetadata", l_lovrModelDataGetMetadata },
   { "getBlobCount", l_lovrModelDataGetBlobCount },
   { "getBlob", l_lovrModelDataGetBlob },
   { "getImageCount", l_lovrModelDataGetImageCount },

src/api/l_graphics_model.c

@@ -57,6 +57,10 @@ static int l_lovrModelGetData(lua_State* L) {
   return 1;
 }
 
+static int l_lovrModelGetMetadata(lua_State* L) {
+  return luax_callmodeldata(L, "getMetadata", 1);
+}
+
 static int l_lovrModelGetRootNode(lua_State* L) {
   return luax_callmodeldata(L, "getRootNode", 1);
 }
@@ -356,6 +360,7 @@ static int l_lovrModelGetTexture(lua_State* L) {
 
 const luaL_Reg lovrModel[] = {
   { "getData", l_lovrModelGetData },
+  { "getMetadata", l_lovrModelGetMetadata },
   { "getRootNode", l_lovrModelGetRootNode },
   { "getNodeCount", l_lovrModelGetNodeCount },
   { "getNodeName", l_lovrModelGetNodeName },

src/modules/data/modelData.h

@@ -156,6 +156,9 @@ typedef struct ModelData {
   uint32_t ref;
   void* data;
 
+  char* metadata;
+  size_t metadataSize;
+
   struct Blob** blobs;
   struct Image** images;
   ModelBuffer* buffers;

src/modules/data/modelData_gltf.c

@@ -230,6 +230,11 @@ ModelData* lovrModelDataInitGltf(ModelData* model, Blob* source, ModelDataIO* io
     binOffset = 0;
   }
 
+  model->metadata = malloc(jsonLength);
+  lovrAssert(model->metadata, "Out of memory");
+  memcpy(model->metadata, json, jsonLength);
+  model->metadataSize = jsonLength;
+
   // Parse JSON
   jsmn_parser parser;
   jsmn_init(&parser);