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Armor 3D model ( Wavefront ) causes massive fps drop


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Hello !


I have a little problem.


I have a model that should be rendered as a 3d armor, it has around 1700 polys, but if I render it on a TileEntitySpecialRenderer, it doesn't cause any FPS drop ( or maybe 2-3FPS )


But whenever it is rendered as a 3D armor, I drop from around 100FPS to 5-10.


I really don't see what could cause this.


Here are the codes :



The Model class :

package com.gugu42.rcmod.render;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.model.ModelBiped;
import net.minecraft.entity.Entity;

public class ClankBackpackRender extends ModelBiped {

RcModelManager modelManager;

public ClankBackpackRender() {
	modelManager = new RcModelManager();

public void render(Entity par1Entity, float par2, float par3, float par4,
		float par5, float par6, float par7) {
	GL11.glTranslated(0.0d, 0.6f, 0.0f);
	GL11.glRotated(180, 0.0D, 0.0D, 1.0D);
	GL11.glScalef(0.04f, 0.04f, 0.04f);


The Item class :

package com.gugu42.rcmod.items;

import com.gugu42.rcmod.RcMod;
import com.gugu42.rcmod.render.ClankBackpackRender;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.model.ModelBiped;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.item.EnumArmorMaterial;
import net.minecraft.item.ItemArmor;
import net.minecraft.item.ItemStack;

public class ItemClankBackpack extends ItemArmor {

public ItemClankBackpack(int par1, EnumArmorMaterial par2EnumArmorMaterial,
		int par3, int par4) {
	super(par1, par2EnumArmorMaterial, par3, par4);

public String getArmorTexture(ItemStack stack, Entity entity, int slot,
		String type) {

	return "rcmod:models/ClankBackpack.png";

public ModelBiped getArmorModel(EntityLivingBase entityLiving,
		ItemStack itemStack, int armorSlot) {

	return new ClankBackpackRender();



I don't think it comes from the render since it updates as often as a TileEntitySpecialRenderer :/

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