added texture files and fixed short grass model

src/main/java/eu/mhsl/minecraft/pixelpic/render/registry/DefaultModelRegistry.java

@@ -17,7 +17,7 @@ import java.util.Map;
 public class DefaultModelRegistry implements ModelRegistry {
 
     private static final String IMAGE_RESOURCE = "terrain.png";
-    private static final int TEXTURE_SIZE = 16;
+    static final int TEXTURE_SIZE = 16;
 
     private final Map<Material, Map<BlockData, Model>> modelMap;
     private BufferedImage textures;
@@ -131,7 +131,7 @@ public class DefaultModelRegistry implements ModelRegistry {
         registerModel(Material.GLASS,
                 Builder.createSimple(textureIndex(3, 1)).occlusion().build());
 
-        registerModel(Material.GRASS_BLOCK, Builder.createCross(textureIndex(5, 6)).build());
+        registerModel(Material.SHORT_GRASS, Builder.createCross(textureIndex(5, 6)).build());
         registerModel(Material.SUGAR_CANE, Builder.createCross(textureIndex(5, 5)).build());
     }
 

src/main/resources/textures/block/blast_furnace_front_on.png.mcmeta

@@ -0,0 +1,6 @@
+{
+  "animation": {
+    "interpolate": true,
+    "frametime": 10
+  }
+}