Laborator 4
import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.opengles.GL11;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
public class Cube {
private FloatBuffer mFVertexBuffer;
private ByteBuffer mColorBuffer,mTFan1,mTFan2;
private ByteBuffer mIndexBuffer;
private FloatBuffer mNormalBuffer;
public Cube(){
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
};
byte maxColor=(byte)255;
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,
};
byte tFan1[] =
{
1,0,3,
1,3,2,
1,2,6,
1,6,5,
1,5,4,
1,4,0
};
byte tFan2[] =
{
7,4,5,
7,5,6,
7,6,2,
7,2,3,
7,3,0,
7,0,4
};
float[] normals =
{
-1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3),
1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3),
1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3),
-1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3),
-1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3),
1.0f/(float)Math.sqrt(3), 1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3),
1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3),
-1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3), -1.0f/(float)Math.sqrt(3)
};
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);
ByteBuffer nbb = ByteBuffer.allocateDirect(normals.length * 4);
nbb.order(ByteOrder.nativeOrder());
mNormalBuffer = nbb.asFloatBuffer();
mNormalBuffer.put(normals);
mNormalBuffer.position(0);
}
public void draw(GL10 gl){
gl.glVertexPointer(3, 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);
gl.glNormalPointer(GL10.GL_FLOAT, 0, mNormalBuffer);
gl.glEnableClientState(GL10.GL_NORMAL_ARRAY);
}
}
import android.opengl.GLSurfaceView;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
public class CubeRenderer implements GLSurfaceView.Renderer {
private Cube mCube;
private float mTransY,mAngle;
public final static int SS_SUNLIGHT = GL10.GL_LIGHT0;
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), -7.0f);
mTransY += 0.075f;
gl.glRotatef(mAngle, 0.0f, 1.0f, 0.0f);
gl.glRotatef(mAngle, 1.0f, 0.0f, 0.0f);
mAngle += 0.4;
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);
//gl.glDepthMask(false);
initLighting(gl);
}
public void initLighting(GL10 gl){
float[] green = {0.0f, 1.0f, 0.0f, 1.0f};
//float[] position = {0.0f, 5.0f, 0.0f, 1.0f};
float[] position = {10.0f,0.0f,3.0f,1.0f};
float[] red = {1.0f, 0.0f, 0.0f, 1.0f};
float[] blue = {0.0f,0.0f,1.0f,1.0f};
float[] colorVector={0.2f, 0.2f, 0.2f, 1.0f};
// float[] yellow={1.0f,1.0f,0.0f,0.1f};
float[] direction= {1.0f, 0.0f, 0.0f};
gl.glLightfv(SS_SUNLIGHT, GL10.GL_POSITION, makeFloatBuffer(position));
gl.glLightfv(SS_SUNLIGHT, GL10.GL_DIFFUSE, makeFloatBuffer(green));
gl.glShadeModel(GL10.GL_SMOOTH);
gl.glEnable(GL10.GL_LIGHTING);
gl.glEnable(SS_SUNLIGHT);
gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_DIFFUSE, makeFloatBuffer(red));
gl.glLightfv(SS_SUNLIGHT,GL10.GL_SPECULAR, makeFloatBuffer(red));
gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_SPECULAR, makeFloatBuffer(red));
gl.glMaterialf(GL10.GL_FRONT_AND_BACK,GL10.GL_SHININESS, 5);
gl.glLightfv(SS_SUNLIGHT, GL10.GL_AMBIENT, makeFloatBuffer(blue));
gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_AMBIENT, makeFloatBuffer(blue));
gl.glLightModelfv(GL10.GL_LIGHT_MODEL_AMBIENT, makeFloatBuffer(colorVector));
// gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_EMISSION, makeFloatBuffer(yellow));
gl.glEnable(GL10.GL_COLOR_MATERIAL);
gl.glLightf(SS_SUNLIGHT, GL10.GL_LINEAR_ATTENUATION, 0.025f);
gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_SPOT_DIRECTION, makeFloatBuffer(direction));
}
protected static FloatBuffer makeFloatBuffer(float[] array)
{
ByteBuffer bb = ByteBuffer.allocateDirect(array.length*4);
bb.order(ByteOrder.nativeOrder());
FloatBuffer fb = bb.asFloatBuffer();
fb.put(array);
fb.position(0);
return fb;
}
}
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);
}
}