Laborator 3
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.opengles.GL11;
public class Cube {
private FloatBuffer mFVertexBuffer;
private ByteBuffer mColorBuffer;
private ByteBuffer mTFan1;
private ByteBuffer mTFan2;
private float vertices[] =
{
-1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, -1.0f, 1.0f,
-1.0f, -1.0f, 1.0f,
-1.0f, 1.0f, -1.0f,
1.0f, 1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f
};
private byte maxColor = (byte) 255;
private byte colors[] = {
maxColor, 0, 0, maxColor,
maxColor, 0, 0, maxColor,
maxColor, 0, 0, maxColor,
maxColor, 0, 0, maxColor,
0, 0, 0, maxColor,
0, 0, 0, maxColor,
0, 0, 0, maxColor,
0, 0, 0, maxColor,
};
private byte tFan1[] =
{
1, 0, 3,
1, 3, 2,
1, 2, 6,
1, 6, 5,
1, 5, 4,
1, 4, 0
};
private byte tFan2[] =
{
7, 4, 5,
7, 5, 6,
7, 6, 2,
7, 2, 3,
7, 3, 0,
7, 0, 4
};
public Cube() {
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length * 4);
vbb.order(ByteOrder.nativeOrder());
mFVertexBuffer = vbb.asFloatBuffer();
mFVertexBuffer.put(vertices);
mFVertexBuffer.position(0);
mColorBuffer = ByteBuffer.allocateDirect(colors.length);
mColorBuffer.put(colors);
mColorBuffer.position(0);
mTFan1 = ByteBuffer.allocateDirect(tFan1.length);
mTFan1.put(tFan1);
mTFan1.position(0);
mTFan2 = ByteBuffer.allocateDirect(tFan2.length);
mTFan2.put(tFan2);
mTFan2.position(0);
}
public void draw(GL10 gl) {
// gl.glFrontFace(GL11.GL_CW);
gl.glVertexPointer(5, GL11.GL_FLOAT, 0, mFVertexBuffer);
gl.glColorPointer(4, GL11.GL_UNSIGNED_BYTE, 0, mColorBuffer);
gl.glDrawElements(gl.GL_TRIANGLE_FAN, 6 * 3, gl.GL_UNSIGNED_BYTE, mTFan1);
gl.glDrawElements(gl.GL_TRIANGLE_FAN, 6 * 3, gl.GL_UNSIGNED_BYTE, mTFan2);
}
}
import android.opengl.GLSurfaceView;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
public class CubeRenderer implements GLSurfaceView.Renderer {
private Cube mCube;
private float mTransY;
private float mAngle;
public CubeRenderer() {
mCube = new Cube();
}
public void onDrawFrame(GL10 gl) {
gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glTranslatef(0.0f, (float) Math.sin(mTransY), -25.0f);
gl.glRotatef(mAngle, 1.0f, 0.0f, 0.0f);
gl.glRotatef(mAngle, 0.0f, 1.0f, 0.0f);
mAngle += 0.4;
gl.glScalef(1,2,1);
// mTransY += 0.075f
mTransY += 0.3f;
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
mCube.draw(gl);
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
float fieldOfView = 30.0f/57.3f;
float aspectRatio = (float)width/(float)height;
float zNear = 0.1f;
float zFar = 1000;
float size = zNear * (float)(Math.tan((double)(fieldOfView/2.0f)));
gl.glFrustumf(-size, size, -size/aspectRatio, size/aspectRatio, zNear, zFar);
gl.glMatrixMode(GL10.GL_MODELVIEW);
}
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
// gl.glDisable(GL10.GL_DITHER);
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_FASTEST);
gl.glClearColor(0, 0, 0, 0);
gl.glEnable(GL10.GL_CULL_FACE);
gl.glShadeModel(GL10.GL_SMOOTH);
gl.glEnable(GL10.GL_DEPTH_TEST);
}
}
import android.opengl.GLSurfaceView;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.WindowManager;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
GLSurfaceView view = new GLSurfaceView(this);
view.setRenderer(new CubeRenderer());
setContentView(view);
}
}