So basically as the Title says I am trying to get an Items IBakedModel and add it's quads to my custom IBakedModel. Though I have been successful in getting the Items IBakedModel, items seem to have a weird Black Plane that runs through it when rendered in the World. As shown below.

 

Images

Spoiler

Just my blocks JSON model.

 

Both the Item and my Blocks JSON

 

Just the Item

 

Blocks JSON and ItemBlock

 

This is my IBakedModel (most of which is probably temporary).

Spoiler

package dev.anime.wien;

import java.util.ArrayList;
import java.util.List;

import javax.vecmath.Matrix4f;

import org.apache.commons.lang3.tuple.Pair;

import net.minecraft.block.state.IBlockState;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.block.model.BakedQuad;
import net.minecraft.client.renderer.block.model.IBakedModel;
import net.minecraft.client.renderer.block.model.ItemCameraTransforms;
import net.minecraft.client.renderer.block.model.ItemCameraTransforms.TransformType;
import net.minecraft.client.renderer.block.model.ItemOverrideList;
import net.minecraft.client.renderer.block.model.ItemTransformVec3f;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.IPerspectiveAwareModel;
import net.minecraftforge.client.model.ModelLoaderRegistry;
import net.minecraftforge.common.model.TRSRTransformation;

@SuppressWarnings("deprecation")
public class SolidFuelGeneratorBakedModel implements IPerspectiveAwareModel {
	
	private IBakedModel mainBakedModel, bakedModel;
	List<BakedQuad> quads = new ArrayList<BakedQuad>();
	
	private boolean newModel = false;
	
	private EnumFacing facing;
	private IBlockState state;
	private Item item;
	
	public SolidFuelGeneratorBakedModel() {
		try {
			mainBakedModel = ModelLoaderRegistry.getModel(new ResourceLocation("wien", "block/solidfuelgenerator")).bake(TRSRTransformation.identity(), DefaultVertexFormats.BLOCK, location -> Minecraft.getMinecraft().getTextureMapBlocks().getAtlasSprite(location.toString()));
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	@Override
	public List<BakedQuad> getQuads(IBlockState state, EnumFacing side, long rand) {
		item = Item.getItemFromBlock(Blocks.PLANKS);
		createBakedModel();
		if (facing != side || state != this.state || newModel) {
			quads.clear();
			if (mainBakedModel != null) quads.addAll(mainBakedModel.getQuads(state, side, rand));
			if (bakedModel != null) quads.addAll(bakedModel.getQuads(state, side, rand));
			facing = side;
			this.state = state;
		}
		return quads;
	}
	
	private void createBakedModel() {
		try {
			if (item instanceof ItemBlock) {
				bakedModel = Minecraft.getMinecraft().getRenderItem().getItemModelWithOverrides(new ItemStack(item), Minecraft.getMinecraft().theWorld, null);
			} else {
				bakedModel = Minecraft.getMinecraft().getRenderItem().getItemModelWithOverrides(new ItemStack(item), Minecraft.getMinecraft().theWorld, null);
			}
			newModel = true;
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	@Override
	public boolean isAmbientOcclusion() {
		return true;
	}

	@Override
	public boolean isGui3d() {
		return false;
	}

	@Override
	public boolean isBuiltInRenderer() {
		return true;
	}

	@Override
	public TextureAtlasSprite getParticleTexture() {
		return Minecraft.getMinecraft().getTextureMapBlocks().getAtlasSprite("wien:blocks/basicframe");
	}

	@Override
	public ItemCameraTransforms getItemCameraTransforms() {
		return ItemCameraTransforms.DEFAULT;
	}

	@Override
	public ItemOverrideList getOverrides() {
		return bakedModel != null ? bakedModel.getOverrides() : mainBakedModel != null ? mainBakedModel.getOverrides() : null;
	}

	@Override
	public Pair<? extends IBakedModel, Matrix4f> handlePerspective(TransformType cameraTransformType) {
		ItemCameraTransforms itemCameraTransforms = ItemCameraTransforms.DEFAULT;
		ItemTransformVec3f itemTransformVec3f = itemCameraTransforms.getTransform(cameraTransformType);
		TRSRTransformation tr = new TRSRTransformation(itemTransformVec3f);
		Matrix4f mat = null;
		if (tr != null) {
			mat = tr.getMatrix();
		}
		return Pair.of(this, mat);
	}
	
}

 

 

Edit: I have also used the ModelLoaderRegistry.getModel() to get the model, but to no avail.

Edited July 18, 20178 yr by Animefan8888

After a little bit more debugging I fixed this issue, but ran into another one. First the fix. Since most items have transparency you need to say that your block also has transparency. I did this by overriding Block#getBlockLayer and returned BlockRenderLayer.CUTOUT_MIPPED. Now on to the second issue. I need a way to get an IModel of any Item/Block. The problem with ModelLoaderRegistry.getModel is that some items have multiple models based on metadata and the same with blocks with variants. I need a way of reliably getting this for the ModelResourceLocation.

After another day I have almost been able to get all models loaded. Though I am stuck on one thing while loading models. When someone calls ModelBakery.registerItemVaraints stores the model location in a private static Map<RegistryDelegate<Item>, Set<String>> which I get through reflection in my ClientProxy. Then when the ItemStack in my TileEntity changes I get the Model Location through this map if I have to by parsing the BlockState JSON at runtime, currently very inefficient I plan on storing them in a Map later on in a more efficient way. But the problem lies that I do not know how the Item is then connected to the Strings within the Set.

 

Code.

Spoiler

Relevant Client Proxy

@SideOnly(Side.CLIENT)
public class ClientProxy extends ServerProxy {

	private static Map<Item, TIntObjectHashMap<ModelResourceLocation>> ITEM_MODEL_MESHER_ITEM_MODEL_MAP;
	private static Map<RegistryDelegate<Item>, Set<String>> ITEM_VARIANTS;
	public static final ModelResourceLocation MISSING_MODEL = new ModelResourceLocation("builtin/missing", "missing");
	public static final Map<String, String> MODID_TO_FILE_MAPPING = new HashMap<String, String>();
	
	public void getModelMapping() {
		ItemModelMesherForge mesher = (ItemModelMesherForge) Minecraft.getMinecraft().getRenderItem().getItemModelMesher();
		ITEM_MODEL_MESHER_ITEM_MODEL_MAP = ReflectionHelper.getPrivateValue(ItemModelMesherForge.class, mesher, "locations");
		ITEM_VARIANTS = ReflectionHelper.getPrivateValue(ModelBakery.class, null, "customVariantNames");
		loadModIDMapping();
	}

	public static ModelResourceLocation getModelResourceLocationFromModelMapping(ItemStack stack) {
		if (ITEM_MODEL_MESHER_ITEM_MODEL_MAP == null) System.err.println("Model Mapping is null!!");
		if (stack != null) {
          // Gets the ModelResourceLocation from already stored location.
			for (Entry<Item, TIntObjectHashMap<ModelResourceLocation>> entryModelMap : ITEM_MODEL_MESHER_ITEM_MODEL_MAP.entrySet()) {
				if (entryModelMap.getKey() == stack.getItem()) {
					for (int i = 0; i < entryModelMap.getValue().size(); i++) {
						if (i == stack.getItemDamage()) {
							ModelResourceLocation location = entryModelMap.getValue().get(i);
							String model = getModelLocationFromBlockState(location);
							if (model != null) location = new ModelResourceLocation(new ResourceLocation(model.split(":")[0], model.split(":")[1]), location.getVariant());
							System.out.println("Model Location: " + location);
							return location;
						}
					}
				}
			}
          // Looks through the ModelBakery Map<RegistryDelegate<Item>, Set<String>> was hoping on Metadata being the identifier.
			for (Entry<RegistryDelegate<Item>, Set<String>> entry : ITEM_VARIANTS.entrySet()) {
				if (entry.getKey().equals(stack.getItem().delegate)) {
					System.out.println("Variant Names: " + Collections.<String>singletonList(((ResourceLocation)Item.REGISTRY.getNameForObject(stack.getItem())).toString()));
					String variant = (String) entry.getValue().toArray()[entry.getValue().size() - stack.getMetadata() - 2];
					String model = getModelLocationFromBlockState(new ModelResourceLocation(stack.getItem().getRegistryName(), variant));
					String[] modelLocation = model.split(":");
					ModelResourceLocation location = new ModelResourceLocation(new ResourceLocation(modelLocation.length == 1 ? "minecraft" : modelLocation[0], modelLocation[modelLocation.length - 1]), variant);
					System.out.println("Model Resource Location: " + location);
					return location;
				}
			}
          // If the Item is a ItemBlock attempt to get the ModelResourceLocation from the metadata and blockstate json.
			if (stack.getItem() instanceof ItemBlock) {
				Block block = Block.getBlockFromItem(stack.getItem());
				System.out.println(block.getRegistryName());
				Minecraft.getMinecraft().theWorld.setTileEntity(BlockPos.ORIGIN, block.createTileEntity(Minecraft.getMinecraft().theWorld, block.getDefaultState()));
				IBlockState state = block.getExtendedState(block.getStateForPlacement(Minecraft.getMinecraft().theWorld, BlockPos.ORIGIN, EnumFacing.NORTH, 0, 0, 0, stack.getItemDamage(), Minecraft.getMinecraft().thePlayer, stack.copy()), Minecraft.getMinecraft().theWorld, BlockPos.ORIGIN);
				ModelResourceLocation location = null;
				String variant = null;
				StringBuilder builder = new StringBuilder();
				builder.append(state.toString());
				ResourceLocation registryName = block.getRegistryName();
				for (int i = 0; i < registryName.getResourceDomain().length() + 2 + registryName.getResourcePath().length(); i++) builder.deleteCharAt(0);
				if (builder.length() > 0) {
					builder.deleteCharAt(builder.length() - 1);
					variant = builder.toString();
				}
				if (variant.length() == 0) variant = "inventory";
				String model = getModelLocationFromBlockState(location = new ModelResourceLocation(block.getRegistryName(), variant));
				if (model == null) model = getModelLocationFromBlockState(location = new ModelResourceLocation(block.getRegistryName(), "normal"));
				String[] modelPath = model.split(":");
				location = new ModelResourceLocation(new ResourceLocation(modelPath.length == 1 ? "minecraft" : modelPath[0], modelPath[modelPath.length - 1]), variant);
				System.out.println("Model Location: " + location);
				return location;
			}
		}
		return MISSING_MODEL;
	}
	// Gets the mods jar file and maps it to the modid.
	private static void loadModIDMapping() {
		MODID_TO_FILE_MAPPING.clear();
		File modsFolder = new File("mods");
		if (!modsFolder.exists() && !modsFolder.isDirectory()) modsFolder.mkdirs();
		File[] mods = modsFolder.listFiles();
		List<JarFile> jars = new ArrayList<JarFile>();
		for (File mod : mods) {
			if (mod.getAbsolutePath().endsWith(".jar")) {
				try {
					jars.add(new JarFile(mod.getAbsolutePath()));
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		for (JarFile jar : jars) {
			Enumeration<JarEntry> entries = jar.entries();	
			JarEntry entry = null;
			while (entries.hasMoreElements()) {
				entry = entries.nextElement();
				if (entry.getName().endsWith(".class")) {
					try {
						String[] entryPath = entry.getName().split("/");
						StringBuilder builder = new StringBuilder();
						for (String string : entryPath) builder.append(string).append(".");
						String[] jarPath = jar.getName().split("\\\\");
						Class<?> clazz = Class.forName(builder.delete(builder.length() - 7, builder.length()).toString());
						if (clazz.isAnnotationPresent(Mod.class)) {
							MODID_TO_FILE_MAPPING.put(clazz.getAnnotation(Mod.class).modid(), jarPath[jarPath.length - 1]);
							break;
						}
					} catch (Exception e) {
						e.printStackTrace();
						return;
					}
				}
			}
		}
		System.out.println("ModID to Jar Map: " + MODID_TO_FILE_MAPPING);
	}
  
	// Parses the blockstate json for models location based on the variant and the ResourceLocation within the first parameter.
	private static String getModelLocationFromBlockState(ModelResourceLocation location) {
		String model = null;
		try {
			File file = new File("");
			String modFile = getModFileFromID(location.getResourceDomain());
			URL url = new URL("jar:file:" + file.getAbsolutePath() + (location.getResourceDomain().equalsIgnoreCase("minecraft") ? "/versions/" + MinecraftForge.MC_VERSION  + "/" + MinecraftForge.MC_VERSION + ".jar!/" : "/mods/" + modFile + "!/") + "assets/" + location.getResourceDomain() + "/blockstates/" + location.getResourcePath() + ".json");
			JsonReader reader = new JsonReader(new InputStreamReader(url.openStream()));
			reader.beginObject();
			boolean isForge = false,
					inVariants = false;
			String nextName = "";
			while (reader.hasNext()) {
				nextName = reader.nextName();
				if (nextName.equalsIgnoreCase("forge_marker")) {
					isForge = true;
					reader.skipValue();
					continue;
				}
				if (inVariants) {
					if (isForge) {
						String[] variants = location.getVariant().split(",");
						List<String> list = new ArrayList<String>();
						for (String string : variants) list.addAll(Arrays.asList(string.split("=")));
						variants = list.toArray(variants);
						for (int j = 0; j < variants.length && model == null; j += 2) {
							if (nextName.equalsIgnoreCase(variants[j])) {
								reader.beginObject();
								while (reader.hasNext()) {
									if (reader.nextName().equalsIgnoreCase(variants[j+1])) {
										reader.beginObject();
										while (reader.hasNext()) {
											if (reader.nextName().equalsIgnoreCase("model")) {
												model = reader.nextString();
												reader.endObject();
											} else reader.skipValue();
										}
										reader.endObject();
										inVariants = false;
										break;
									} else reader.skipValue();
								}
							}
						}
					} else {
						// TODO: Make vanilla blockstate parser
					}
					continue;
				}
				if (nextName.equalsIgnoreCase("variants")) {
					reader.beginObject();
					inVariants = true;
					continue;
				} else reader.skipValue();
			}
			reader.endObject();
			reader.close();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
		return model;
	}

  	// Simply extracts the jar file name from the mapping based on the modid.
	private static String getModFileFromID(String modid) {
		loadModIDMapping();
		for (Entry<String, String> entry : MODID_TO_FILE_MAPPING.entrySet()) {
			if (entry.getKey().equalsIgnoreCase(modid)) return entry.getValue();
		}
		return null;
	}
}

 

IBakedModel Implementation

@SideOnly(Side.CLIENT)
public class SolidFuelGeneratorBakedModel implements IPerspectiveAwareModel {

	private IModel model;
	private IBakedModel itemBakedModel, bakedModel;
	private static final Map<EnumFacing, IBakedModel> MAIN_MODELS = new HashMap<EnumFacing, IBakedModel>();
	private List<BakedQuad> quads = new ArrayList<BakedQuad>(), mainQuads = new ArrayList<BakedQuad>();

	private ItemStack item = null;

	public SolidFuelGeneratorBakedModel() {
		try {
			MAIN_MODELS.put(EnumFacing.NORTH, ModelLoaderRegistry.getModel(new ResourceLocation("wien", "block/solidfuelgenerator")).bake(new TRSRTransformation(EnumFacing.NORTH), DefaultVertexFormats.BLOCK, getTexture()));
			MAIN_MODELS.put(EnumFacing.SOUTH, ModelLoaderRegistry.getModel(new ResourceLocation("wien", "block/solidfuelgenerator")).bake(new TRSRTransformation(EnumFacing.SOUTH), DefaultVertexFormats.BLOCK, getTexture()));
			MAIN_MODELS.put(EnumFacing.WEST, ModelLoaderRegistry.getModel(new ResourceLocation("wien", "block/solidfuelgenerator")).bake(new TRSRTransformation(EnumFacing.WEST), DefaultVertexFormats.BLOCK, getTexture()));
			MAIN_MODELS.put(EnumFacing.EAST, ModelLoaderRegistry.getModel(new ResourceLocation("wien", "block/solidfuelgenerator")).bake(new TRSRTransformation(EnumFacing.EAST), DefaultVertexFormats.BLOCK, getTexture()));
			itemBakedModel = MAIN_MODELS.get(EnumFacing.NORTH);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	@Override
	public List<BakedQuad> getQuads(IBlockState state, EnumFacing side, long rand) {
		List<BakedQuad> list = new ArrayList<BakedQuad>();
		applyProperQuads(state, side, rand);
		list.addAll(mainQuads);
		ItemStack stack = ((IExtendedBlockState)state).getValue(WiEnBlock.STACK_PROPERTY);
		if (!ItemHelper.areItemStacksSimilar(item, stack)) {
			item = stack;
			createBakedModel();
			quads.clear();
			if (bakedModel != null) quads.addAll(bakedModel.getQuads(state, side, rand));
		}
		list.addAll(quads);
		return list;
	}

	private void applyProperQuads(IBlockState state, EnumFacing side, long rand) {
		mainQuads.clear();
		mainQuads.addAll(MAIN_MODELS.get(state.getValue(WiEnBlock.FACING)).getQuads(state, side, rand));
	}
	
	private void createBakedModel() {
		try {
			bakedModel = null;
			model = null;
			if (item != null) {
				ModelResourceLocation modelLocation = ClientProxy.getModelResourceLocationFromModelMapping(item);
				model = ModelLoaderRegistry.getModel(new ResourceLocation(modelLocation.getResourceDomain(), (item.getItem() instanceof ItemBlock ? "block/" : "item/") + modelLocation.getResourcePath()));
				System.out.println("IModel: " + model);
				if (bakedModel == null && model != null) {
					bakedModel = model.bake(new TRSRTransformation(new Vector3f(.38f, .40f, .38f), new Quat4f(), new Vector3f(.25f, .25f, .25f), new Quat4f()), item.getItem() instanceof ItemBlock ? DefaultVertexFormats.BLOCK : DefaultVertexFormats.ITEM, getTexture());
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	private Function<ResourceLocation, TextureAtlasSprite> getTexture() {
		return location -> Minecraft.getMinecraft().getTextureMapBlocks().getAtlasSprite(location.toString());
	}

	@Override
	public boolean isAmbientOcclusion() {
		return false;
	}

	@Override
	public boolean isGui3d() {
		return true;
	}

	@Override
	public boolean isBuiltInRenderer() {
		return false;
	}

	@Override
	public TextureAtlasSprite getParticleTexture() {
		return Minecraft.getMinecraft().getTextureMapBlocks().getAtlasSprite("wien:blocks/basicframe");
	}

	@Override
	public ItemCameraTransforms getItemCameraTransforms() {
		return ItemCameraTransforms.DEFAULT;
	}

	@Override
	public ItemOverrideList getOverrides() {
		return itemBakedModel != null ? itemBakedModel.getOverrides() : null;
	}

	@Override
	public Pair<? extends IBakedModel, Matrix4f> handlePerspective(TransformType cameraTransformType) {
		return ((IPerspectiveAwareModel)itemBakedModel).handlePerspective(cameraTransformType);
	}

}

 

If you need anything else please let me know.

I have found the fantastic called shapers which is contained in the ItemModelMesher#shapers which I had to get via reflection. i found it by looking at how GuiContainer displays items in the GUI. I then use the information to look up in a blockstate json which I will proceed to store within a map. Now the one last problem I have run into is that for non ItemBlock models I cannot apply a TRSRTransformation. So I post here in hopes that I get an answer to how I can scale it, rotate it, and translate it.