Laborator 2
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 Square {
private FloatBuffer mFVertexBuffer;
private ByteBuffer mColorBuffer;
private ByteBuffer mIndexBuffer;
private float vertices[] = {
-2.0f, -1.0f,
1.0f, -1.0f,
-1.0f, 1.0f,
1.0f, 1.0f
};
private byte maxColor = (byte) 255;
// //green
// private byte colors[] = {
// 0, maxColor, 0, 0,
// 0, maxColor, 0, 0,
// 0, maxColor, 0, 0,
// 0, maxColor, 0, 0,
// };
//blue
private byte colors[] = {
0, 0, maxColor, 0,
0, 0, maxColor, 0,
0, 0, maxColor, 0,
0, 0, maxColor, 0,
};
private byte indices[] =
{
0, 3, 1,
0, 2, 3
};
public Square() {
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);
mIndexBuffer = ByteBuffer.allocateDirect(indices.length);
mIndexBuffer.put(indices);
mIndexBuffer.position(0);
}
public void draw(GL10 gl)
{
gl.glFrontFace(GL11.GL_CW);
gl.glVertexPointer(2, GL11.GL_FLOAT, 0, mFVertexBuffer);
gl.glColorPointer(4, GL11.GL_UNSIGNED_BYTE, 0, mColorBuffer);
// gl.glDrawElements(GL11.GL_TRIANGLES, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
gl.glDrawElements(GL11.GL_TRIANGLE_STRIP, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
// gl.glDrawElements(GL11.GL_POINTS, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
// gl.glDrawElements(GL11.GL_LINE_STRIP, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
// gl.glDrawElements(GL11.GL_LINE_LOOP, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
// gl.glDrawElements(GL11.GL_LINES, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
// gl.glDrawElements(GL11.GL_TRIANGLE_FAN, 6, GL11.GL_UNSIGNED_BYTE, mIndexBuffer);
}
}
import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.egl.EGLConfig;
import android.opengl.GLSurfaceView;
public class SquareRenderer implements GLSurfaceView.Renderer {
private Square mSquare;
private float mTransY;
public SquareRenderer()
{
mSquare = new Square();
}
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), -3.0f);
// mTransY += 0.075f;
mTransY += 0.3f;
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
mSquare.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 ratio = (float) width / height;
gl.glFrustumf(-ratio, ratio, -1, 1, 1, 10);
}
public void onSurfaceCreated(GL10 gl, EGLConfig config)
{
// gl.glDisable(GL10.GL_DITHER);
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_FASTEST);
gl.glClearColor(47,47,0,100);
gl.glEnable(GL10.GL_CULL_FACE);
gl.glShadeModel(GL10.GL_SMOOTH);
gl.glEnable(GL10.GL_DEPTH_TEST);
}
}
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.app.Activity;
import android.opengl.GLSurfaceView;
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 SquareRenderer());
setContentView(view);
}
}