From Wings3D to Minecraft - Mapping and Modding Tutorials - Mapping and Modding: Java Edition - Minecraft Forum

#1 Jun 7, 2014

Armigus

Iron Miner
Join Date: 11/16/2012
Posts: 286
Minecraft: Iniquix
Member Details

My goal is to create upgraded variants of vanilla objects that are built using 3D models rather than standard blocks or block items. I'm using a fairly current Forge (1098 for 1.7.2).

Phase 1: Modelling (complete)
I do my modelling in Wings3d, a freeware modeller written in Erlang that is quite easy to use. Here are the basic objects i want to start with...

Phase 2: UV unwrapping (process known)
There are plenty of excellent tutorials on this process, google wings3d uv mapping.

Here is an example.

Phase 3: Import models into Minecraft (in process, 70-80%)
I based the method on this example.

First I need a TileEntity:

package com.inqiuix.tapioca;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.AdvancedModelLoader;
import net.minecraftforge.client.model.IModelCustom;

public class ObjEntity extends TileEntity {
private IModelCustom model;
private ResourceLocation texture, modelContent;

public IModelCustom Model() { return model; }
public ResourceLocation Texture() { return texture; }

public ObjEntity(String name) {
ReadModel(name);
}

public void ReadModel(String name) {
modelContent = new ResourceLocation("modid",
"/assets/models/"+"model"+".obj"); // inner string is a stub
model = AdvancedModelLoader.loadModel(modelContent);
	 texture = new ResourceLocation("modid",
	 "/assets/textures/"+"texture"+".png"); // inner string is a stub
}
}

Then I need a special renderer for it:

package com.inqiuix.tapioca;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.tileentity.TileEntity;

public class ObjRender extends TileEntitySpecialRenderer {
public ObjRender(){
}

@Override
public void renderTileEntityAt(
TileEntity me,
double px, double py,
double pz, float fl) {
ObjEntity obj = (ObjEntity)me;
	 GL11.glPushMatrix();
	 GL11.glTranslated(px, py, pz);
	 Minecraft.getMinecraft().renderEngine.bindTexture(obj.Texture());
	 obj.Model().renderAll();
	 GL11.glPopMatrix();
}
}

Phase 4: Use and query a JSON table to let specific blocks find their models and textures. (Need help)
Here is the JSON I want to use, at least to start:

{
"Objects": [
{ "name":"IronSconce", "model": "sconce", "texture": "sconceiron" }
{ "name":"GoldSconce", "model": "sconce", "texture"; "sconcegold" }
{ "name":"DoubleOven", "model": "oven2", "texture": "ovendouble" }
{ "name":"NetherOven", "model": "oven4", "texture": "ovenquad" }
{ "name":"Chimney", "model": "chimney", "texture": "chimney" }
]
}

I can make the file available to Minecraft as a ResourceLocation:

public static ResourceLocation Content =
new ResourceLocation("assets/tapioca/links/links.json");

The plan is to have a read method query the JSON with a name, get the model and texture strings from the resulting entry, then replace the stub strings in ReadModel with the result. Another option is to create a table from the file that can be queried.

This file looks like it could do what I want and the internal gson looks viable also. I have a lot more experience with Visual Studio C# than Eclipse Java. I just need the pathway from ResourceLocation to ReadModel.

#2 Jul 22, 2014

unga23

Curse Premium

Tree Puncher
Join Date: 11/20/2012
Posts: 47
Member Details

Hi Armigus! Im triying to do the same process to render .obj as models from Blender to Minecraft!

Did you already finish it?

EDIT: This is what i already have done...

package Models;

import org.lwjgl.opengl.GL11;

import com.minecraftargentina.basemod.BaseMod;
import com.minecraftargentina.basemod.Blocks.TileEntityArbolPlataform;

import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.AdvancedModelLoader;
import net.minecraftforge.client.model.IModelCustom;
import Models.ArbolBaseModel;

//Renderizado 3D importando ".obj" from Blender.

public class RenderArbolPlataform extends TileEntitySpecialRenderer{

private IModelCustom ArbolPlataformModel; //El model
private ResourceLocation ArbolPlataformTexture; //La textura
private ResourceLocation ArbolPlataform; //Nombre

public RenderArbolPlataform(){

//Resource by Name
ArbolPlataform = new ResourceLocation(BaseMod.modid + ":" + "textures/model/ArbolPlataform.obj");

//Model From Name
ArbolPlataformModel = AdvancedModelLoader.loadModel(ArbolPlataform);

//Texture Resource
ArbolPlataformTexture = new ResourceLocation(BaseMod.modid + ":" + "textures/model/ArbolPlataform.png");
}

public void renderTileEntityAt(TileEntity tileEntity, double x, double y, double z, float f){
GL11.glPushMatrix();
GL11.glTranslated((float)x + 0.5F,(float) y + 1.5F,(float) z + 0.5F);
bindTexture(ArbolPlataformTexture);
GL11.glRotatef(180, 0.0F, 0.0F, 1F);

GL11.glPushMatrix();
ArbolPlataformModel.renderAll();
GL11.glPopMatrix();

GL11.glPopMatrix();
}
}

I didnt test it but the resource location in 1.7.2 its ok...

I need some help with the textures...

Last edited by unga23: Jul 22, 2014