Пример #1
0
  /** paint the portal using gl. */
  public void paint(GL gl, GLDrawable glc) {

    if (fill != null) {
      setColor(gl, fill);
      gl.glDisable(GL.GL_TEXTURE_2D);
    }
    gl.glLineWidth(lineWidth());
    gl.glBegin(GL.GL_LINES); // draw each wall
    for (int i = 0; i < pts2d.size(); i++) {
      Point2D p = (Point2D) (pts2d.get(i));
      gl.glVertex2d(p.x, p.y);
    }
    gl.glEnd();

    if (pts2d.size() == 4) {
      /* Connect mid point of the two line segments with dotted line*/
      gl.glLineStipple(1, (short) 0x0F0F);
      gl.glEnable(GL.GL_LINE_STIPPLE);
      gl.glLineWidth(1);
      gl.glBegin(GL.GL_LINES);
      Point2D mid = pts2d.get(0).interp(pts2d.get(1), 0.5);
      gl.glVertex2d(mid.x, mid.y);
      mid = pts2d.get(2).interp(pts2d.get(3), 0.5);
      gl.glVertex2d(mid.x, mid.y);
      gl.glEnd();
      gl.glDisable(GL.GL_LINE_STIPPLE);
    }
  }
Пример #2
0
  public void render3D(GL gl, GLDrawable glc) {
    if (pts2d.size() < 4) return;
    if (fill != null || texture != null) {
      if (texture == null) {
        setColor(gl, fill);
        gl.glDisable(GL.GL_TEXTURE_2D);
      } else {
        setColor(gl, Color.white);
        Texture gltexture = texture.getTexture(glc);
        gltexture.enable();
        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT);
        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_REPEAT);
        gl.glTexEnvf(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, GL.GL_MODULATE);
        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
        gltexture.bind();
      }
      gl.glPushMatrix();

      // get 4 control points of portal
      Point2D p0 = pts2d.get(0);
      Point2D p1 = pts2d.get(1);
      Point2D p2 = pts2d.get(2);
      Point2D p3 = pts2d.get(3);

      // render 1st side of portal with height extra[0]
      renderOneside(p0, p1, gl, extra[0]);

      // render 1st side of portal with height extra[1]
      renderOneside(p2, p3, gl, extra[1]);

      gl.glPopMatrix();
    }
  }