Well, title explains what i'm doing, now i'll explain the rest:

To render item (or multiple), i'm using this code (in custom item renderer):

@Override
public void renderItem(ItemRenderType type, ItemStack itemstack, Object... data) {
	if(type == IItemRenderer.ItemRenderType.EQUIPPED || type == IItemRenderer.ItemRenderType.EQUIPPED_FIRST_PERSON){
		EntityLivingBase entity = (EntityLivingBase) data[1];
		if(type == IItemRenderer.ItemRenderType.EQUIPPED)
			GL11.glTranslated(1, 0, 0.5);
		if(itemstack.getItemDamage() == 0){
			for(int i = 1; i < 10; i++){
				ItemStack item = ItemCompressedTools.getToolFromMeta(itemstack, i);
				if(item != null){
					if(MinecraftForgeClient.getItemRenderer(item, type) != null)
						ForgeHooksClient.renderEquippedItem(type, MinecraftForgeClient.getItemRenderer(item, type), (RenderBlocks) data[0], entity, item);
					else
						renderer.renderItem(entity, item, 0, type);
					GL11.glTranslated(-0.1, 0, 0);
				}
			}
		} else {
			ItemStack item = ItemCompressedTools.getCurrentTool(itemstack);
			if(item != null){
				if(MinecraftForgeClient.getItemRenderer(item, type) != null)
					ForgeHooksClient.renderEquippedItem(type, MinecraftForgeClient.getItemRenderer(item, type), (RenderBlocks) data[0], entity, item);
				else
					renderer.renderItem(entity, item, 0, type);
			}
		}
	}
	if(type == IItemRenderer.ItemRenderType.ENTITY){
		EntityItem entity = (EntityItem) data[1];
		if(itemstack.getItemDamage() == 0){
			for(int i = 1; i < 10; i++){
				ItemStack item = ItemCompressedTools.getToolFromMeta(itemstack, i);
				if(item != null){
					entity.setEntityItemStack(item);
					if(!ForgeHooksClient.renderEntityItem(entity, item, 0, 0, new Random(), FMLClientHandler.instance().getClient().renderEngine, (RenderBlocks) data[0], 1))
						RenderManager.instance.renderEntitySimple(entity, 1);
					GL11.glTranslated(-0.1, 0, 0);
				}
			}
		} else {
			ItemStack item = ItemCompressedTools.getCurrentTool(itemstack);
			if(item != null){
				entity.setEntityItemStack(item);
				if(!ForgeHooksClient.renderEntityItem(entity, item, 0, 0, new Random(), FMLClientHandler.instance().getClient().renderEngine, (RenderBlocks) data[0], 1))
					RenderManager.instance.renderEntitySimple(entity, 1);
			}
		}
		entity.setEntityItemStack(itemstack);
	}
	if(type == IItemRenderer.ItemRenderType.INVENTORY){
		EntityPlayer player = Minecraft.getMinecraft().thePlayer; 
		GL11.glTranslated(0.5, 0, 0);
		if(itemstack.getItemDamage() == 0){
			for(int i = 1; i < 10; i++){
				ItemStack item = ItemCompressedTools.getToolFromMeta(itemstack, i);
				if(item != null){
					if(!ForgeHooksClient.renderInventoryItem((RenderBlocks) data[0], FMLClientHandler.instance().getClient().renderEngine, item, true, 0, 0, 0))
						renderer.renderItem(player, item, 0, type);	
					GL11.glTranslated(-0.1, 0, 0);
				}
			}
		} else {
			ItemStack item = ItemCompressedTools.getCurrentTool(itemstack);
			if(item != null){
				if(!ForgeHooksClient.renderInventoryItem((RenderBlocks) data[0], FMLClientHandler.instance().getClient().renderEngine, item, true, 0, 0, 0))
					renderer.renderItem(player, item, 0, type);	
			}
		}
	}
}

 

But here we don't need full code, we just need one part of it, the one that is responsible for rendering actual item "in item".

Here is one for equipped renderer:

if(MinecraftForgeClient.getItemRenderer(item, type) != null)
						ForgeHooksClient.renderEquippedItem(type, MinecraftForgeClient.getItemRenderer(item, type), (RenderBlocks) data[0], entity, item);
					else
						renderer.renderItem(entity, item, 0, type);

One for entity:

if(!ForgeHooksClient.renderEntityItem(entity, item, 0, 0, new Random(), FMLClientHandler.instance().getClient().renderEngine, (RenderBlocks) data[0], 1))
						RenderManager.instance.renderEntitySimple(entity, 1);

And one for inventory:

if(!ForgeHooksClient.renderInventoryItem((RenderBlocks) data[0], FMLClientHandler.instance().getClient().renderEngine, item, true, 0, 0, 0))
						renderer.renderItem(player, item, 0, type);

 

An well the problem is:

-items that have custom model are rendered few times bigger

-items with multiple render passes, are rendered with only one

-for entity renderer, item is rendered weirdly somewhere far awy from actual entity

And this applies for each renderer case!

 

Any help will be appreciated!

Well well...

 

Digging a bit more i found what may cause items with model to be wrongly rendered: in forge render methods i found fncts responsible for rotation and resizing... Do i need to rewrite those in order to rnder item correctly???

My guess would be "yes."

I'll try so... And what about multiple render passes???

By the way, i found this code in mc rendering classes... So why isn't it working???

Anybody has any ideas??? Please???

Anybody has any ideas??? Please???

Is it seriously so hard???

You have to be patient. Eventually someone who known the answer will come along and tell you.

 

Also: Continuously bumping your post is not going to help, it will, in fact, annoy some people, people who may known the answer.

@Shadowfacts

Okay...

If you need any additional info,  just ask!

Hey, I don't know all the answers, but Ill try my verry best.

 

Fisrt of all, in the methode "renderItem()", you should specify the coördinates relative to the player. if the item is showing up far away from the player, you should change the values in the "GL11.glTranslated()".

If you want to change the scale you can use the "GL11.glScalef()" methode.

these first to can be different for each renderType.

 

and about your second point: "items with multiple render passes, are rendered with only one",

what exactualy do you mean?

 

Hope this helps a bit, other wise let us know !

GL

Hey, I don't know all the answers, but Ill try my verry best.

 

Fisrt of all, in the methode "renderItem()", you should specify the coördinates relative to the player. if the item is showing up far away from the player, you should change the values in the "GL11.glTranslated()".

If you want to change the scale you can use the "GL11.glScalef()" methode.

these first to can be different for each renderType.

 

and about your second point: "items with multiple render passes, are rendered with only one",

what exactualy do you mean?

 

Hope this helps a bit, other wise let us know !

GL

1) I tried using translateD, and for some reasons this is not working... (why???)...

2) I mean that only first layer of item is rendered. Example: leather armor has 2 layers of texture, but only one is rendered

Pls post your current relevant code

Pls post your current relevant code

One for entity is the case of not working translateD. Just adding right before it translateD, doesn't change a lot...

Well to explain better, it doesn't raproaches it to center, just to one point far away from it...

(i'll post pics here as soon as will have them, and sorry for long awaited post)...