3D model OBJ file is loaded with out texture

[harish]

Hello..
   I have loaded a 3d model(.obj) which is downloaded.I got only two files when downladed ( LWO , OBJ).I have loaded the OBJ file into display.But the problem is the look is not good when compared to 'blender' view. I am assuming that it is due to 'texture' problem. If it is the problem,show me a solution with an example.
   You can observe the difference in the images attached.Thank You

[Kai]

The top view shows no texture, as far as I can tell.
The issue is with your Wavefront OBJ loader with how it assembles the vertices/faces from the OBJ file into triangle lists for OpenGL. Check whether your Wavefront OBJ loader is correct.
And the white shading is just because you are not doing any light calculations.

[harish]

Thanks for your reply.But,sorry..I am not clear because I am new to lwjgl. I am posting my code(4 files) which is used to load OBJ model.

Main.java:

package Model;

import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.util.glu.GLU.*;
import java.io.IOException;
import org.lwjgl.LWJGLException;
import org.lwjgl.input.Keyboard;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.util.vector.Vector3f;

public class Main {

    private Model m;
    private Vector3f location, rotation;

    public static void main(String[] args) throws IOException {
        new Main().run();
    }

    private void run() throws IOException {
        try {
            Display.setDisplayMode(new DisplayMode(1000, 1000));
            Display.setTitle("3D");
            Display.setResizable(true);
            //Display.setInitialBackground(0f, 0f, 0f);
            Display.create();
        } catch (LWJGLException e) {
            e.printStackTrace();
            Display.destroy();
            System.exit(1);
        }

        location = new Vector3f(-1.0f, -5.0f, -70.0f);
        rotation = new Vector3f(0.0f, 0.0f, 0.0f);
        try {
            m = Model.getModel("res/Model.obj");
        } catch (Exception e){
            e.printStackTrace();
        }

        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glEnable(GL_TEXTURE_2D);
        gluPerspective(30f, (float) (1200/800), 3.0f, 100);
        glMatrixMode(GL_MODELVIEW);
        //glEnable(GL_DEPTH_TEST);

        while(!Display.isCloseRequested()){
            input();
            render();
            Display.update();
            Display.sync(60);
        }

        Display.destroy();
        System.exit(0);
    }

    private void input() {
        boolean up = Keyboard.isKeyDown(Keyboard.KEY_W);
        boolean down = Keyboard.isKeyDown(Keyboard.KEY_S);
        boolean left = Keyboard.isKeyDown(Keyboard.KEY_A);
        boolean right = Keyboard.isKeyDown(Keyboard.KEY_D);
        boolean speedUp = Keyboard.isKeyDown(Keyboard.KEY_LSHIFT);
        boolean slowDown = Keyboard.isKeyDown(Keyboard.KEY_LCONTROL);
        float walkspeed = 0.15f;

        float mx = Mouse.getDX();
        float my = Mouse.getDY();
        mx *= 0.15f;
        my *= 0.15f;

       if (Mouse.isButtonDown(0)){
            rotation.y += mx;
            if (rotation.y > 360){
                rotation.y -= 360;
            }
            rotation.y += my;
            if (rotation.x > 85){
                rotation.x = 85;
            }
            if (rotation.x < -85){
                rotation.x = -85;
            }           
        }

        if(speedUp && !slowDown){
            walkspeed = 0.25f;
        }
        if(slowDown && !speedUp){
            walkspeed = 0.15f;
        }
        if(up && !down){
            float cz = (float) (walkspeed * 2 * Math.cos(Math.toRadians(rotation.y)));
            float cx = (float) (walkspeed * Math.sin(Math.toRadians(rotation.y)));
            location.z += cz;
            location.x -= cx;
        }
        if(down && !up){
            float cz = (float) (walkspeed * 2 * Math.cos(Math.toRadians(rotation.y)));
            float cx = (float) (walkspeed * Math.sin(Math.toRadians(rotation.y)));
            location.z -= cz;
            location.x += cx;
        }
        if(right && !left){
            float cz = (float) (walkspeed * 4 * Math.cos(Math.toRadians(rotation.y)));
            float cx = (float) (walkspeed * Math.sin(Math.toRadians(rotation.y)));
            rotation.y += cz;
            rotation.x -= cx;
        }
        if(left && !right){
            float cz = (float) (walkspeed * 4 * Math.cos(Math.toRadians(rotation.y)));
            float cx = (float) (walkspeed * Math.sin(Math.toRadians(rotation.y)));
            rotation.y -= cz;
            rotation.x += cx;
        }
    }

    private void render() throws IOException {
        glPushMatrix();
        //glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        glLoadIdentity();
       
        //glRotatef(rotation.x, 1f, 0f, 0f);
        glRotatef(rotation.y, 0f, 1f, 0f);
        //glRotatef(rotation.z, 0f, 0f, 1f);
        glTranslatef(location.x, location.y, location.z);
        m.render();
        glPopMatrix();
    }
}

Model.java:

package Model;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;


import org.lwjgl.util.vector.Vector3f;
import static org.lwjgl.opengl.GL11.*;

public class Model {
   public List<Vector3f> verts;
    public List<Vector3f> norms;
    public List<Face> faces;

    public static Model getModel(String s) throws IOException{
        return new Model(s);
    }

    private Model(String path) throws IOException{
        verts = new ArrayList<Vector3f>();
        norms = new ArrayList<Vector3f>();
        faces = new ArrayList<Face>();
        new ModelLoader(this, path);
    }

    public void render() throws IOException{
//      glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
       //Color.gray.bind();
       //TextureLoader.getTexture("JPEG", ResourceLoader.getResourceAsStream("res/i.jpeg"));
        glBegin(GL_TRIANGLES);
        for (Face f : faces){
            Vector3f v1 = verts.get((int) f.verts.x -1);
            Vector3f n1 = verts.get((int) f.norms.x -1);
            Vector3f v2 = verts.get((int) f.verts.y -1);
            Vector3f n2 = verts.get((int) f.norms.y -1);
            Vector3f v3 = verts.get((int) f.verts.z -1);
            Vector3f n3 = verts.get((int) f.norms.z -1);
            glNormal3f(n1.x, n1.y, n1.z);
            glVertex3f(v1.x, v1.y, v1.z);
            glNormal3f(n2.x, n2.y, n2.z);
            glVertex3f(v2.x, v2.y, v2.z);
            glNormal3f(n3.x, n3.y, n3.z);
            glVertex3f(v3.x, v3.y, v3.z);
        }
        glEnd();
    }
}

ModelLoader.java:

package Model;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;


import org.lwjgl.util.vector.Vector3f;

public class ModelLoader {

    public ModelLoader(Model m, String path) throws IOException {
        BufferedReader read = new BufferedReader(new FileReader(new File(path)));
        String line;
        while((line = read.readLine()) != null) {
            if (line.startsWith("v ")){
                float x = Float.valueOf(line.split(" ")[1]);
                float y = Float.valueOf(line.split(" ")[2]);
                float z = Float.valueOf(line.split(" ")[3]);
                Vector3f v = new Vector3f(x, y, z);
                m.verts.add(v);
            } else if (line.startsWith("vm ")) {
                float x = Float.valueOf(line.split(" ")[1]);
                float y = Float.valueOf(line.split(" ")[2]);
                float z = Float.valueOf(line.split(" ")[3]);
                Vector3f v = new Vector3f(x, y, z);
                m.norms.add(v);
            } else if (line.startsWith("f ")) {
                float x1 = Float.valueOf(line.split(" ")[1].split("/")[0]);
                float y1 = Float.valueOf(line.split(" ")[2].split("/")[0]);
                float z1 = Float.valueOf(line.split(" ")[3].split("/")[0]);
                float x2 = Float.valueOf(line.split(" ")[1].split("/")[0]);
                float y2 = Float.valueOf(line.split(" ")[2].split("/")[0]);
                float z2 = Float.valueOf(line.split(" ")[3].split("/")[0]);
                Face f = new Face(new Vector3f(x2, y2, z2), new Vector3f(x1, y1, z1));
                m.faces.add(f);
            }
        }
        read.close();
    }
}

Face.java:

package Model;

import org.lwjgl.util.vector.Vector3f;

public class Face {

    public Vector3f norms, verts;

    public Face(Vector3f n, Vector3f v){
        this.norms = n;
        this.verts = v;
    }

}

[Kai]

That ModelLoader has soooo many bugs and errors, I actually don't know where to start.
Read the Wavefront OBJ spec or find a decent loader first, before continuing.

[harish]

Can u please suggest me a link or any example?

[abcdef]

Just google what you are looking for, there are numerous posts on this forum and other forums aswell as many many pages on the internet.