Loading textures for model(sdcard/res) using Bitmap. about rajawali HOT 16 CLOSED

Hi,
Could you elaborate on 'not being renderer properly'?
Are the textures stored alongside the models (in the same folder)?
Are the textures power of two textures?
Any errors in LogCat?

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Not being rendered properly means, Sometimes there is no texture loaded , and some of the times , it loaded only on half side of model.
Textures for MD2 Models are just bitmaps , so Bitmap images i will get from server and it need not to be stored on sdcard , where as in case of OBJ model , Material file will saved alongside the models , but again for Bitmap it will be same case.

Errors in Logcat is displayed:
Material was not found

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Ah, so there is a third scenario. When you load images from the server, are you sure they've completely finished loading?

Could you copy & paste the stack trace (with line numbers, etc)?

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hi here are the errors when i try to load model from sdcard and texture from drawable

05-25 14:53:24.715: W/System.err(3248): java.lang.NullPointerException: name
05-25 14:53:24.715: W/System.err(3248): at android.content.res.AssetManager.getResourceIdentifier(Native Method)
05-25 14:53:24.715: W/System.err(3248): at android.content.res.Resources.getIdentifier(Resources.java:1642)
05-25 14:53:24.715: W/System.err(3248): at rajawali.parser.MD2Parser.getMaterials(MD2Parser.java:122)
05-25 14:53:24.715: W/System.err(3248): at rajawali.parser.MD2Parser.parse(MD2Parser.java:79)
05-25 14:53:24.715: W/System.err(3248): at com.monyetmabuk.rajawali.tutorials.Md2Renderer.initScene(Md2Renderer.java:42)
05-25 14:53:24.715: W/System.err(3248): at rajawali.renderer.RajawaliRenderer.onSurfaceCreated(RajawaliRenderer.java:224)
05-25 14:53:24.715: W/System.err(3248): at com.monyetmabuk.rajawali.tutorials.Md2Renderer.onSurfaceCreated(Md2Renderer.java:58)
05-25 14:53:24.715: W/System.err(3248): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1373)
05-25 14:53:24.715: W/System.err(3248): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1138)
05-25 14:53:25.140: E/Rajawali(3248): [rajawali.animation.mesh.VertexAnimationObject3D] Material is null. Please add a material before adding a texture.
05-25 14:53:25.175: I/GLThread(3248): exiting tid=13
05-25 14:53:25.175: W/dalvikvm(3248): threadid=9: thread exiting with uncaught exception (group=0x4001e578)
05-25 14:53:25.175: E/AndroidRuntime(3248): FATAL EXCEPTION: GLThread 13
05-25 14:53:25.175: E/AndroidRuntime(3248): java.lang.RuntimeException: Material is null. Please add a material first.
05-25 14:53:25.175: E/AndroidRuntime(3248): at rajawali.BaseObject3D.addTexture(BaseObject3D.java:329)
05-25 14:53:25.175: E/AndroidRuntime(3248): at com.monyetmabuk.rajawali.tutorials.Md2Renderer.initScene(Md2Renderer.java:44)
05-25 14:53:25.175: E/AndroidRuntime(3248): at rajawali.renderer.RajawaliRenderer.onSurfaceCreated(RajawaliRenderer.java:224)
05-25 14:53:25.175: E/AndroidRuntime(3248): at com.monyetmabuk.rajawali.tutorials.Md2Renderer.onSurfaceCreated(Md2Renderer.java:58)
05-25 14:53:25.175: E/AndroidRuntime(3248): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1373)
05-25 14:53:25.175: E/AndroidRuntime(3248): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1138)

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Hi, the textures and the model both need to be in the same location. It's either sdcard or resources.

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thanks for your reply,
even i don't apply any texture situation is seemed to be same..

i have another question that in obj with the help of mtl texture is applied but how implicitly md2 model apply texture?is there any way to rename textures so that md2 apply them?

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could you send me the .obj file?
the md2 file is baked into the file, can't change that i'm afraid.
You can add a texture afterwards though.

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plz give your mail id so that i can forward you the file

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info at rozengain com

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The parser crashed when there was not material defined in the md2 file. Now it reports a RajLog message but continues without throwing an exception.

So after parsing the file you still have to add a material or it won't render:

MD2Parser parser = new MD2Parser(mContext.getResources(), mTextureManager, R.raw.king);
parser.parse();
VertexAnimationObject3D o = (VertexAnimationObject3D)parser.getParsedAnimationObject();
o.addLight(mLight);
o.setScale(.05f);
DiffuseMaterial material = new DiffuseMaterial(true); // -- true because it is an animated object
material.setUseColor(true); // -- use a color, not a texture
o.setMaterial(material);
o.setColor(0xff00ff00);
o.play();


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as you mentioned,i tried with these modifications but result is black screen,i am using the same md2 king model.

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Did you try using different values for setScale(); it might be too small to see depending on the distance of the camera. You might also try removing this line completely :-)

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sorry for replying late but i tried everything but still no model only black screen.

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Could you send me your code please?
On Jun 1, 2012 2:40 PM, "MrYogi" <
[email protected]>
wrote:

sorry for replying late but i tried everything but still no model only
black screen.

---

Reply to this email directly or view it on GitHub:
#35 (comment)

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i am just editing your md2 renedrer class ,here is the code:

package com.monyetmabuk.rajawali.tutorials;

import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import rajawali.animation.mesh.VertexAnimationObject3D;
import rajawali.lights.DirectionalLight;
import rajawali.materials.DiffuseMaterial;
import rajawali.parser.MD2Parser;
import rajawali.renderer.RajawaliRenderer;
import android.content.Context;
import android.graphics.Color;

public class RajawaliMD2Renderer extends RajawaliRenderer {
private DirectionalLight mLight;
private VertexAnimationObject3D mOgre;

public RajawaliMD2Renderer(Context context) {
    super(context);
    setFrameRate(60);
}

public void playAnimation(String name) {
    if (name.equals("loop all")) {
        mOgre.play();
    } else {
        mOgre.play(name, false);
    }
}

protected void initScene() {
    mLight = new DirectionalLight(0, 0, 1);
    mLight.setPower(2);
    mCamera.setPosition(0, 0, -8);

    MD2Parser parser = new MD2Parser(mContext.getResources(), mTextureManager, R.raw.king);
    parser.parse();
    VertexAnimationObject3D mOgre = (VertexAnimationObject3D)parser.getParsedAnimationObject();
    mOgre.addLight(mLight);
    mOgre.setScale(.015f);
    DiffuseMaterial material = new DiffuseMaterial(true); // -- true because it is an animated object
    material.setUseColor(true); // -- use a color, not a texture
    mOgre.setMaterial(material);
    mOgre.setColor(Color.GREEN);
    addChild(mOgre);
    mOgre.play();
}

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    ((RajawaliExampleActivity) mContext).showLoader();
    super.onSurfaceCreated(gl, config);
    ((RajawaliExampleActivity) mContext).hideLoader();
}

}

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I removed the line

mOgre.setScale(.015f);

which made it work.

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