diff --git a/src/gui/render/renderMetal.h b/src/gui/render/renderMetal.h
index 1204825b3..6a1470c53 100644
--- a/src/gui/render/renderMetal.h
+++ b/src/gui/render/renderMetal.h
@@ -29,7 +29,7 @@ class FurnaceGUIRenderMetal: public FurnaceGUIRender {
     bool lockTexture(FurnaceGUITexture* which, void** data, int* pitch);
     bool unlockTexture(FurnaceGUITexture* which);
     bool updateTexture(FurnaceGUITexture* which, void* data, int pitch);
-    FurnaceGUITexture* createTexture(bool dynamic, int width, int height);
+    FurnaceGUITexture* createTexture(bool dynamic, int width, int height, bool interpolate=true);
     bool destroyTexture(FurnaceGUITexture* which);
     void setTextureBlendMode(FurnaceGUITexture* which, FurnaceGUIBlendMode mode);
     void setBlendMode(FurnaceGUIBlendMode mode);
@@ -43,7 +43,7 @@ class FurnaceGUIRenderMetal: public FurnaceGUIRender {
     bool getOutputSize(int& w, int& h);
     int getWindowFlags();
     void preInit();
-    bool init(SDL_Window* win);
+    bool init(SDL_Window* win, int swapInterval);
     void initGUI(SDL_Window* win);
     void quitGUI();
     bool quit();
diff --git a/src/gui/render/renderMetal.mm b/src/gui/render/renderMetal.mm
index 3261d403a..a40407976 100644
--- a/src/gui/render/renderMetal.mm
+++ b/src/gui/render/renderMetal.mm
@@ -59,7 +59,7 @@ bool FurnaceGUIRenderMetal::updateTexture(FurnaceGUITexture* which, void* data,
   return SDL_UpdateTexture(t->tex,NULL,data,pitch)==0;
 }
 
-FurnaceGUITexture* FurnaceGUIRenderMetal::createTexture(bool dynamic, int width, int height) {
+FurnaceGUITexture* FurnaceGUIRenderMetal::createTexture(bool dynamic, int width, int height, bool interpolate) {
   SDL_Texture* t=SDL_CreateTexture(sdlRend,SDL_PIXELFORMAT_ABGR8888,dynamic?SDL_TEXTUREACCESS_STREAMING:SDL_TEXTUREACCESS_STATIC,width,height);
 
   if (t==NULL) return NULL;
@@ -118,7 +118,7 @@ void FurnaceGUIRenderMetal::preInit() {
   priv=new FurnaceGUIRenderMetalPrivate;
 }
 
-bool FurnaceGUIRenderMetal::init(SDL_Window* win) {
+bool FurnaceGUIRenderMetal::init(SDL_Window* win, int swapInterval) {
   SDL_SetHint(SDL_HINT_RENDER_DRIVER,"metal");
 
   sdlRend=SDL_CreateRenderer(win,-1,SDL_RENDERER_ACCELERATED|SDL_RENDERER_PRESENTVSYNC|SDL_RENDERER_TARGETTEXTURE);