jpct-ae 绘制的桌子（Android 3D）

package com.collsion4; import javax.microedition.khronos.egl.EGLConfig; import javax.microedition.khronos.opengles.GL10; import com.threed.jpct.*; import com.threed.jpct.Matrix; import com.threed.jpct.util.MemoryHelper; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.opengl.*; public class MyRenderer implements GLSurfaceView.Renderer{ // FrameBuffer对象 private FrameBuffer fb; // World对象 private World world; // RGBColor private RGBColor back = new RGBColor(50, 50, 100); // Object3D对象 private Object3D cube=null; private Object3D cylinder1=null; private Object3D cylinder2=null; private Object3D cylinder3=null; private Object3D cylinder4=null; // FPS private int fps = 0; private long time = System.currentTimeMillis(); // 默认构造 // 对该项目的一些优化 public MyRenderer() { // 绘制的最多的Polygon数量,默认为4096,此处如果超过500，则不绘制 Config.maxPolysVisible = 500; // 最远的合适的平面,默认为1000 Config.farPlane = 1500; Config.glTransparencyMul = 0.1f; Config.glTransparencyOffset = 0.1f; // 使JPCT-AE这个引擎使用顶点而不是顶点数组缓冲对象，因为它可能会使某些硬件更快 // 但在Samsung Galaxy,它并不能工作的很好，可能使之崩溃，这就是它默认为false的原因 Config.useVBO = true; //这个很关键，百度一下mipmap Texture.defaultToMipmapping(false); Texture.defaultTo4bpp(true); } @Override public void onDrawFrame(GL10 gl) { // TODO Auto-generated method stub try { if (true) { move();//实现上下左右键 // 以定义好的RGBColor清屏 fb.clear(back); // 变换和灯光所有的多 边形 world.renderScene(fb); // 绘制由renderScene产生的场景 world.draw(fb); // 渲染显示图像 fb.display(); // fps加1 fps+=1; // 打印输出fps if (System.currentTimeMillis() - time > 1000) { System.out.println(fps + "fps"); fps = 0; time = System.currentTimeMillis(); } } else { if (fb != null) { fb.dispose(); fb = null; } } } catch (Exception e) { e.printStackTrace(); // 打印异常信息 Logger.log("Drawing thread terminated!", Logger.MESSAGE); } } @Override public void onSurfaceChanged(GL10 gl, int width, int height) { // TODO Auto-generated method stub if (fb != null) { fb = null; } // 新产生一个FrameBuffer对象 fb = new FrameBuffer(gl, width, height); } @Override public void onSurfaceCreated(GL10 gl, EGLConfig config) { // TODO Auto-generated method stub Logger.log("onCreate"); // 混合渲染 gl.glEnable(GL10.GL_BLEND); gl.glBlendFunc(GL10.GL_ONE, GL10.GL_ONE_MINUS_SRC_ALPHA); // 新建world对象 world = new World(); // 纹理 TextureManager tm = TextureManager.getInstance(); Texture texture2 = new Texture(LoadFile.bitmap1); Texture texture3 = new Texture(LoadFile.bitmap2); tm.addTexture("texture2", texture2); tm.addTexture("texture3", texture3); // 画一个很薄的立方体 cube=new Object3D(12); //12个三角形 //下面的代码：upper(下)，lower(下)，left(左)，right（右），front（前），back(后); //8个顶点 SimpleVector upperLeftFront=new SimpleVector(-60,0,-90); SimpleVector upperRightFront=new SimpleVector(60,0,-90); SimpleVector lowerLeftFront=new SimpleVector(-60,5,-90); SimpleVector lowerRightFront=new SimpleVector(60,5,-90); SimpleVector upperLeftBack = new SimpleVector( -60,0,90); SimpleVector upperRightBack = new SimpleVector(60,0,90); SimpleVector lowerLeftBack = new SimpleVector( -60,5,90); SimpleVector lowerRightBack = new SimpleVector(60,5,90); int t1=tm.getTextureID("texture2"); int t2=tm.getTextureID("texture3"); //画三角形 //第一个参数是顶点位置()，2,3是纹理位置（u）,以此类推 //最后一个参数是纹理的ID // Front cube.addTriangle(upperLeftFront,0,0, lowerLeftFront,0,1, upperRightFront,1,0,t1); cube.addTriangle(upperRightFront,1,0, lowerLeftFront,0,1, lowerRightFront,1,1,t1); // Back cube.addTriangle(upperLeftBack,0,0, upperRightBack,1,0, lowerLeftBack,0,1,t1); cube.addTriangle(upperRightBack,1,0, lowerRightBack,1,1, lowerLeftBack,0,1,t1); // Upper cube.addTriangle(upperLeftBack,0,0, upperLeftFront,0,1, upperRightBack,1,0,t2); cube.addTriangle(upperRightBack,1,0, upperLeftFront,0,1, upperRightFront,1,1,t2); // Lower cube.addTriangle(lowerLeftBack,0,0, lowerRightBack,1,0, lowerLeftFront,0,1,t1); cube.addTriangle(lowerRightBack,1,0, lowerRightFront,1,1, lowerLeftFront,0,1,t1); // Left cube.addTriangle(upperLeftFront,0,0, upperLeftBack,1,0, lowerLeftFront,0,1,t1); cube.addTriangle(upperLeftBack,1,0, lowerLeftBack,1,1, lowerLeftFront,0,1,t1); // Right cube.addTriangle(upperRightFront,0,0, lowerRightFront,0,1, upperRightBack,1,0,t1); cube.addTriangle(upperRightBack,1,0, lowerRightFront, 0,1, lowerRightBack,1,1,t1); cube.setLighting(0);//没效果 //cube.scale(10);//放大物体 //得到圆柱体1 cylinder1=Primitives.getCylinder(20, 3, 9); cylinder1.calcTextureWrapSpherical(); cylinder1.setTexture("texture2"); //圆柱体2是克隆圆柱体1 cylinder2=cylinder1.cloneObject(); cylinder3=cylinder1.cloneObject(); cylinder4=cylinder1.cloneObject(); //移动圆柱体1到桌子下面 cylinder1.translate(-58, 30, -90); cylinder2.translate(58, 30, -90); cylinder3.translate(-58, 30, 90); cylinder4.translate(58, 30, 90); //将圆柱体作为cube的孩子，这样，它们可以作为整体旋转平移 cube.addChild(cylinder1); cube.addChild(cylinder2); cube.addChild(cylinder3); cube.addChild(cylinder4); //加入到world world.addObject(cylinder1); world.addObject(cylinder2); world.addObject(cylinder3); world.addObject(cylinder4); world.addObject(cube); // 设置环境光 world.setAmbientLight(255, 255, 255); //这里设置光照的地方不成功，不能显示光照，没有效果 //设置光照 Light light=new Light(world); light.setPosition(new SimpleVector(cube.getTransformedCenter().x, cube.getTransformedCenter().y-100,cube.getTransformedCenter().z)); light.setIntensity(255, 0, 0); light.setDiscardDistance(14); //以上3段代码没有效果 // 编译所有对象 world.buildAllObjects(); // Camera相关 Camera cam = world.getCamera(); cam.setPositionToCenter(cube); cam.align(cube);//将相机方向对着物体的Z轴正方向 //相机绕着X轴旋转20度 cam.rotateCameraX((float) Math.toRadians(10)); cam.moveCamera(Camera.CAMERA_MOVEOUT, 250); // 向外以移动 cam.moveCamera(Camera.CAMERA_MOVEUP, 60); //cam.lookAt(plane.getTransformedCenter()); // 回收内存 MemoryHelper.compact(); } public void move() { Camera cam=world.getCamera(); if (Jpct_collsion4Activity.up) { // 按向上方向键 cam.moveCamera(cam.getDirection(), -2);//摄像机向里面移动 } if (Jpct_collsion4Activity.down) { cam.moveCamera(cam.getDirection(), 2);//向外移动 } if (Jpct_collsion4Activity.left) { cube.rotateY((float) Math.toRadians(-5));// 向左旋转 } if (Jpct_collsion4Activity.right) { cube.rotateY((float) Math.toRadians(5)); // 向右旋转 } } }