I have an entity with a custom model and whenever it is holding an item the item doesn't show up. How would I tell my model where to render the held item?

Look at ModelBiped and RenderLiving. In 1.8 (you didn't specify which version you are using...), you also need to look at the layer renderers, as there is a layer for rendering the held item.

I did, in fact I searched those up and down before coming here. I found LayerRenderer but what is it and how do I use it?

 

Thanks

I did, in fact I searched those up and down before coming here. I found LayerRenderer but what is it and how do I use it?

Did you look at the code for rendering bipeds, i.e. RenderBiped, or any non-abstract render class? RenderBiped has a couple layers and should provide more than enough of an example to see what they are and how to use them.

Ok I looked at LayerHeld Item and applied it to my Renderer but nothing happens. I looked into the code and there is also one for the Witch. I looked at that at I was wondering a) do I have to make my own LayerHeldItem for my mob and b) if I do, does the GLStateManager#translate position it on the model?

 

Thanks

If your model extends ModelBiped, then you should be able to use the vanilla LayerHeldItem, and yes, GL translate determines where it will appear in relation to your model.

 

It would help solve your issue if you were able to post your code, specifically your Model and Render classes, as well as probably your Entity class.

Model:

 

package com.apmods.creeps.models.floob;

import java.util.HashMap;

import com.apmods.creeps.entity.EntityFloob;
import com.apmods.creeps.models.MCALibs.client.MCAClientLibrary.MCAModelRenderer;
import com.apmods.creeps.models.MCALibs.common.MCACommonLibrary.MCAVersionChecker;
import com.apmods.creeps.models.MCALibs.common.MCACommonLibrary.animation.AnimationHandler;
import com.apmods.creeps.models.MCALibs.common.MCACommonLibrary.math.Matrix4f;
import com.apmods.creeps.models.MCALibs.common.MCACommonLibrary.math.Quaternion;

import net.minecraft.client.model.ModelBase;
import net.minecraft.entity.Entity;
import net.minecraft.util.MathHelper;

public class ModelFloob extends ModelBase {
public final int MCA_MIN_REQUESTED_VERSION = 5;
public HashMap<String, MCAModelRenderer> parts = new HashMap<String, MCAModelRenderer>();

MCAModelRenderer head;
MCAModelRenderer body;
MCAModelRenderer rightLeg;
MCAModelRenderer leftLeg;
MCAModelRenderer leftEye;
MCAModelRenderer rightEye;
MCAModelRenderer rightArm;
MCAModelRenderer leftArm;

public ModelFloob()
{
MCAVersionChecker.checkForLibraryVersion(getClass(), MCA_MIN_REQUESTED_VERSION);

textureWidth = 64;
textureHeight = 32;

head = new MCAModelRenderer(this, "head", 0, 0);
head.mirror = false;
head.addBox(0.0F, 0.0F, 0.0F, 6, 12, 6);
head.setInitialRotationPoint(0.0F, 0.0F, 0.0F);
head.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
head.setTextureSize(64, 32);
parts.put(head.boxName, head);

body = new MCAModelRenderer(this, "body", 8, 19);
body.mirror = false;
body.addBox(0.0F, 0.0F, 0.0F, 8, 8, 4);
body.setInitialRotationPoint(-1.0F, -8.0F, 1.0F);
body.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
body.setTextureSize(64, 32);
parts.put(body.boxName, body);

rightLeg = new MCAModelRenderer(this, "rightLeg", 24, 0);
rightLeg.mirror = false;
rightLeg.addBox(0.0F, 0.0F, 0.0F, 3, 16, 3);
rightLeg.setInitialRotationPoint(-1.0F, -24.0F, 1.5F);
rightLeg.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
rightLeg.setTextureSize(64, 32);
parts.put(rightLeg.boxName, rightLeg);

leftLeg = new MCAModelRenderer(this, "leftLeg", 24, 0);
leftLeg.mirror = false;
leftLeg.addBox(0.0F, 0.0F, 0.0F, 3, 16, 3);
leftLeg.setInitialRotationPoint(4.0F, -24.0F, 1.5F);
leftLeg.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
leftLeg.setTextureSize(64, 32);
parts.put(leftLeg.boxName, leftLeg);

leftEye = new MCAModelRenderer(this, "leftEye", 1, 19);
leftEye.mirror = false;
leftEye.addBox(0.0F, 0.0F, 0.0F, 2, 2, 1);
leftEye.setInitialRotationPoint(3.5F, 8.0F, 5.5F);
leftEye.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
leftEye.setTextureSize(64, 32);
parts.put(leftEye.boxName, leftEye);
head.addChild(leftEye);

rightEye = new MCAModelRenderer(this, "rightEye", 1, 19);
rightEye.mirror = false;
rightEye.addBox(0.0F, 0.0F, 0.0F, 2, 2, 1);
rightEye.setInitialRotationPoint(0.5F, 8.0F, 5.5F);
rightEye.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
rightEye.setTextureSize(64, 32);
parts.put(rightEye.boxName, rightEye);
head.addChild(rightEye);

rightArm = new MCAModelRenderer(this, "rightArm", 36, 0);
rightArm.mirror = false;
rightArm.addBox(0.0F, 0.0F, 0.0F, 3, 13, 3);
rightArm.setInitialRotationPoint(-3.0F, 5.0F, 13.0F);
rightArm.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(-0.70710677F, 0.0F, 0.0F, 0.70710677F)).transpose());
rightArm.setTextureSize(64, 32);
parts.put(rightArm.boxName, rightArm);
body.addChild(rightArm);

leftArm = new MCAModelRenderer(this, "leftArm", 36, 0);
leftArm.mirror = false;
leftArm.addBox(0.0F, 0.0F, 0.0F, 3, 13, 3);
leftArm.setInitialRotationPoint(8.0F, -5.0F, 0.5F);
leftArm.setInitialRotationMatrix(new Matrix4f().set(new Quaternion(0.0F, 0.0F, 0.0F, 1.0F)).transpose());
leftArm.setTextureSize(64, 32);
parts.put(leftArm.boxName, leftArm);
body.addChild(leftArm);

}

@Override
public void render(Entity par1Entity, float par2, float par3, float par4, float par5, float par6, float par7) 
{
	EntityFloob entity = (EntityFloob)par1Entity;

	AnimationHandler.performAnimationInModel(parts, entity);

	//Render every non-child part
	head.render(par7);
	body.render(par7);
	rightLeg.render(par7);
	leftLeg.render(par7);
}
@Override
public void setRotationAngles(float par1, float par2, float par3, float par4, float par5, float par6, Entity par7Entity) {

}

public MCAModelRenderer getModelRendererFromName(String name)
{
	return parts.get(name);
}
}

 

 

Renderer:

 

package com.apmods.creeps.client;

import org.lwjgl.opengl.GL11;

import com.apmods.creeps.Creeps;
import com.apmods.creeps.entity.EntityFloob;
import com.apmods.creeps.models.floob.ModelFloob;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.entity.RenderLiving;
import net.minecraft.client.renderer.entity.layers.LayerHeldItem;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.util.ResourceLocation;

public class RenderFloob extends RenderLiving {

public static final ResourceLocation Floob_texture = new ResourceLocation(Creeps.MODID + ":textures/models/Floob.png");
public static ModelFloob modelFloob = new ModelFloob();	
public static float modelHeight = 3F;

public RenderFloob()
    {
        super(Minecraft.getMinecraft().getRenderManager(), modelFloob, 0.5F);
        this.addLayer(new LayerHeldItem(this));
    }

@Override
public void doRender(Entity _entity, double posX, double posY, double posZ, float var8, float var9) {
	EntityFloob entity = (EntityFloob) _entity;

	GL11.glPushMatrix();
	GL11.glDisable(GL11.GL_CULL_FACE);
	super.doRender(_entity, posX, posY, posZ, var8, var9);
	GL11.glEnable(GL11.GL_CULL_FACE);
	GL11.glPopMatrix();
}

@Override
protected void preRenderCallback(EntityLivingBase entityliving, float f)
{
	GL11.glRotatef(180F, 0, 1F, 0F);
	GL11.glRotatef(180F, 0, 0, 1F);
	GL11.glTranslatef(0, modelHeight, 0);
//		GL11.glScaled(1.7, 1.7, 1.7);
}

@Override
protected ResourceLocation getEntityTexture(Entity var1) {
	return Floob_texture;
}
}

 

Well right there I can see your model does NOT extend ModelBiped, so no, you can't use the vanilla LayerHeldItem as that expects a ModelBiped.

 

You'll have to code your own, or you can extend ModelBiped for your model - it's up to you which makes more sense.