Android Open Source - EveShipView My Renderer

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Back to project page EveShipView.

License

The source code is released under:

MIT License

Java Source Code

package com.niothiel.eveshipview;
/*w  w w .  ja  va  2s .  c  o m*/
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import android.content.Context;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import android.opengl.Matrix;
import android.os.SystemClock;

public class MyRenderer implements GLSurfaceView.Renderer {
  Triangle mTriangle;
  ObjRender mObj;
  Context mContext;
  
  float[] mProjMatrix = new float[16];
  float[] mVMatrix = new float[16];
  float[] mMVPMatrix = new float[16];
  float[] mRotationMatrix = new float[16];
  
  float mAnglePitch = 0.0f;
  float mAngleYaw = 0.0f;

  public MyRenderer(Context context) 
  {
    mContext = context;
  }
  
    public void onSurfaceCreated(GL10 unused, EGLConfig config) {
        // Set the background frame color
        GLES20.glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
        GLES20.glEnable(GLES20.GL_DEPTH_TEST);
        GLES20.glDepthFunc(GLES20.GL_LEQUAL);
        //GLES20.glCullFace(GLES20.GL_BACK);
        
        mTriangle = new Triangle();
        mObj = new ObjRender(mContext, "ab3_t1.obj", "ab3_t1_diffuse.bmp");
    }

    public void onDrawFrame(GL10 unused) {
        // Redraw background color
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);
        
        // Set the camera position (View matrix)
        Matrix.setLookAtM(mVMatrix, 0, 0, 0, -1000, 0f, 0f, 0f, 0f, 1.0f, 0.0f);

        // Create a rotation transformation for the triangle
        Matrix.setIdentityM(mRotationMatrix, 0);
        Matrix.rotateM(mRotationMatrix, 0, mAngleYaw, 0, 1.0f, 0);
        Matrix.rotateM(mRotationMatrix, 0, mAnglePitch, -1.0f, 0, 0);
        
        // Combine the rotation matrix with the projection and camera view
        Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, mRotationMatrix, 0);
        
        // Calculate the projection and view transformation
        Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);
        
        //mTriangle.draw(mMVPMatrix);
        mObj.draw(mMVPMatrix);
    }

    public void onSurfaceChanged(GL10 unused, int width, int height) {
        GLES20.glViewport(0, 0, width, height);
        
        float ratio = (float) width / height;
        // this projection matrix is applied to object coordinates
      // in the onDrawFrame() method
      Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 1, 2000);
    }
}

Java Source Code List

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