[Solved] Custom IItemRenderer not showing model

lexwebb · November 22, 2013

I am trying to make a custom rendered tool that will show its model in first and third person. However at the moment it is only showing a blank texture.

My ClientProxy is as follows:

package opticraft.proxies;

import net.minecraftforge.client.IItemRenderer;
import net.minecraftforge.client.MinecraftForgeClient;
import opticraft.entitys.TileEntityBeam;
import opticraft.entitys.TileEntityItemLaser;
import opticraft.entitys.TileEntityLaserDetector;
import opticraft.entitys.TileEntitySolarCollector;
import opticraft.items.LaserWrench;
import opticraft.items.LaserWrenchRenderer;
import opticraft.lib.Ids;
import opticraft.render.BeamRenderer;
import opticraft.render.ItemLaserRenderer;
import opticraft.render.LaserDetectorRenderer;
import opticraft.render.SolarCollectorRenderer;
import cpw.mods.fml.client.registry.ClientRegistry;

public class ClientProxy extends CommonProxy{

@Override
public void initRenderers() {

}

@Override
public void initSounds() {

}

public void registerRenderThings() {
    	ClientRegistry.bindTileEntitySpecialRenderer(TileEntityItemLaser.class, new ItemLaserRenderer());
    	ClientRegistry.bindTileEntitySpecialRenderer(TileEntitySolarCollector.class, new SolarCollectorRenderer());
    	ClientRegistry.bindTileEntitySpecialRenderer(TileEntityBeam.class, new BeamRenderer());
    	ClientRegistry.bindTileEntitySpecialRenderer(TileEntityLaserDetector.class, new LaserDetectorRenderer());
    	
    	MinecraftForgeClient.registerItemRenderer(Ids.laserRench, (IItemRenderer)new LaserWrenchRenderer());
}

}

LaserWrench Item:

package opticraft.items;

import cpw.mods.fml.common.registry.LanguageRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import opticraft.lib.Ids;
import opticraft.lib.ModInfo;
import opticraft.lib.Names;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.monster.EntityCreeper;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;

public class LaserWrench extends Item{

public LaserWrench(int par1) {
	super(par1);
	setMaxStackSize(1);
	this.setCreativeTab(CreativeTabs.tabTools);
	this.setUnlocalizedName(Names.laserRench_unlocalizedName);
}

@Override
@SideOnly(Side.CLIENT)
public void registerIcons(IconRegister icon) {
	itemIcon = icon.registerIcon(ModInfo.ID.toLowerCase() + ":" + "Error");
}

@Override
public boolean itemInteractionForEntity(ItemStack itemstack, EntityPlayer player, EntityLivingBase target) {

	return false;
}

@Override
  public int getSpriteNumber() {
    return 0;
  }
}

LaserWrench Renderer:

package opticraft.items;

import opticraft.lib.ModInfo;
import opticraft.models.ItemLaserModel;
import opticraft.models.LaserWrenchModel;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLiving;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.IItemRenderer;

public class LaserWrenchRenderer implements IItemRenderer {

protected LaserWrenchModel model;

public LaserWrenchRenderer() {
	model = new LaserWrenchModel();
}

@Override
public boolean handleRenderType(ItemStack item, ItemRenderType type) 
{
	return type == ItemRenderType.EQUIPPED || type == ItemRenderType.EQUIPPED_FIRST_PERSON;
}

@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) 
{
	return false;
}

@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) 
{
	if (type == ItemRenderType.EQUIPPED) {
		RenderBlocks blockRenderer = (RenderBlocks)data[0];
		EntityLiving entity = (EntityLiving)data[1]; // entity holding the item

		GL11.glPushMatrix();
		Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(ModInfo.ID.toLowerCase() + ":textures/items/LaserWrench.png"));

		float scale = 1.4F;
		GL11.glScalef(scale, scale, scale);
		GL11.glRotatef(90, -1, 0, 0);
		GL11.glRotatef(85, 0, 0, 1);
		GL11.glRotatef(180, 0, 1, 0);
		GL11.glRotatef(135, 1, 0, 0);
		GL11.glTranslatef(-0.1F, -0.5F, 0.5F); // Left-Right
		// Forward-Backwards Up-Down
		model.render((Entity) data[1], 0.0F, 0.0F, 0.0F, 0.0F, 0.0F,
				0.0625F);

		GL11.glPopMatrix();
	}
}

}

Whale Cancer · November 22, 2013

The console information showing where it is trying to find the texture would be useful in figuring out the problem.

lexwebb · November 22, 2013

The texture shouldn't matter as its just place holder code, this is meant to be a custom modelled 3D item

TheGreyGhost · November 22, 2013

Hi

It looks to me like you're missing the texture for your item (as seen in the hotbar) and the vanilla code is rendering the item in first person. Does it work ok in third person view?

These links might be useful perhaps:

http://greyminecraftcoder.blogspot.com.au/2013/09/custom-item-rendering-using.html

http://greyminecraftcoder.blogspot.com.au/2013/09/sample-code-for-rendering-items.html

-TGG

lexwebb · November 23, 2013

That's the code i adapted for this. Does the vanilla item need a texture? Also i cannot see it in 3rd person

lexwebb · November 23, 2013

Having added some debug code, it appears that renderItem in the renderer is never getting called. Which is weird, as my code is pretty darn similar in every other aspect.

TheGreyGhost · November 23, 2013

Hi

MinecraftForgeClient.registerItemRenderer(Ids.laserRench, (IItemRenderer)new LaserWrenchRenderer());

Are you sure that this statement is called and that the ID (laserRench? :-) ) is correct?

-TGG

lexwebb · November 23, 2013

Yeah its alled along with those other renderers, which do register. The Both the item and that use the Ids.LaserRench constant

redphe0nix1 · November 23, 2013

Okay there are a few things that you'll need to change and it should be working just great

Firstly, you'll need shouldUseRenderHelper() to return true, otherwise nothing will render when you ask it to,

Second, change, "(Entity) data[1]", to null, because it doesn't need the entity holding it to render,

Third, your code here should be changed from (I put in the code after the changes I already mentioned)

@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) 
{
	if (type == ItemRenderType.EQUIPPED) {			

		GL11.glPushMatrix();
		Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(ModInfo.ID.toLowerCase() + ":textures/items/LaserWrench.png"));

		float scale = 1.4F;
		GL11.glScalef(scale, scale, scale);
		GL11.glRotatef(90, -1, 0, 0);
		GL11.glRotatef(85, 0, 0, 1);
		GL11.glRotatef(180, 0, 1, 0);
		GL11.glRotatef(135, 1, 0, 0);
		GL11.glTranslatef(-0.1F, -0.5F, 0.5F); // Left-Right
		// Forward-Backwards Up-Down
		model.render(null, 0.0F, 0.0F, 0.0F, 0.0F, 0.0F,
				0.0625F);

		GL11.glPopMatrix();
	}
}

to

@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
	GL11.glPushMatrix();
	Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(
			"ModInfo.ID.toLowerCase() + :textures/items/LaserWrench.png"));
	switch (type) {
	case EQUIPPED:
		//scale, rotate, and translate to your liking	
		break;

	case EQUIPPED_FIRST_PERSON:
		//scale, rotate, and translate to your liking
		break;

	default:
		break;

	}

	model.render(null, 0, 0, 0, 0, 0, 0.625F);

	GL11.glPopMatrix();

}

You could use nested if statements if you wanted to I guess, this is just the way that I do mine. The type "EQUIPPED" is only the third person render view which doesn't allow for any other way to be rendered. And having default break makes it not even attempt to render if it's given any other render type. Hope I helped

TheGreyGhost · November 23, 2013

Hi

If redphen0nix1' code doesn't work then I would suggest you put a breakpoint here

ItemRenderer.
    /**
     * Renders the item stack for being in an entity's hand Args: itemStack
     */
    public void renderItem(EntityLivingBase par1EntityLivingBase, ItemStack par2ItemStack, int par3, ItemRenderType type)
    {
        GL11.glPushMatrix();
        TextureManager texturemanager = this.mc.getTextureManager();

        Block block = null;
        if (par2ItemStack.getItem() instanceof ItemBlock && par2ItemStack.itemID < Block.blocksList.length)
        {
            block = Block.blocksList[par2ItemStack.itemID];
        }

// breakpoint here and trace into it to see why your Item is not getting the appropriate renderer
        IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(par2ItemStack, type);

if your renderer is corrected registered, you should see it in MinecraftForgeClient.customItemRenderers[]

if not, it should hopefully give you a clue why not.

-TGG

lexwebb · November 23, 2013

Thanks for all the help guys, I realised that the way I was doing the ID's was ignoring Minecraft adding 255 to the ID, I just added 255 into the register item render code and it solved it. My rendering was all messed up, so thanks for help fixing that red!

lexwebb · November 23, 2013

Wahey! It displays everywhere but the inventory!, where I just get an invisible item. My code for that part is below, see any issues?

} else if(type == ItemRenderType.INVENTORY){

RenderBlocks blockRenderer = (RenderBlocks)data[0];

//Entity entity = (Entity)data[1]; // entity holding the item

GL11.glPushMatrix();

Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(ModInfo.ID.toLowerCase() + ":textures/items/LaserWrench.png"));

float scale = 0.7F;

GL11.glScalef(scale, scale, scale);

GL11.glRotatef(180, 1, 0, 0);

// Forward-Backwards Up-Down

model.render(null, 0.0F, 0.0F, 0.0F, 0.0F, 0.0F,

0.0625F);

GL11.glPopMatrix();

}

redphe0nix1 · November 23, 2013

Are you trying to get it to display an Icon or the model?

TheGreyGhost · November 23, 2013

Hi

Keen, glad it works

Re 255: do you mean 256?

The sooner they get rid of BlockIDs and ItemIDs the happier I'll be...

Re Inventory invisible - suggest to check

shouldUseRenderHelper(INVENTORY_BLOCK) returns true

handleRenderType(INVENTORY) returns true

If those are right, either your model is not right, it's rendering in the wrong spot (out of view), or you've done something funny to the renderer. I don't see anything obvious wrong.

-TGG

redphe0nix1 · November 23, 2013

What he said ^

lexwebb · November 23, 2013

Thanks TTG! it was shouldUseRenderHelper(INVENTORY_BLOCK) returns true that i needed. Here is a screenshot of everything working nicely! thanks both of you for you help

TheGreyGhost · November 23, 2013

Ha ha awesome, love the solar panels too. Nice one.

-TGG

redphe0nix1 · November 23, 2013

Looks great , glad I could help

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[Solved] Custom IItemRenderer not showing model

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