public void onSurfaceCreated(GL10 gl, EGLConfig config) {
g3d = Graphics3D.getInstance();
wld = new World();
Camera cam = new Camera();
cam.lookAt(0, 0, 15, 0, 0, 0, 0, 1, 0);
wld.addChild(cam);
wld.setActiveCamera(cam);
Background bg = new Background();
bg.setColor(0xff3f3fff);
wld.setBackground(bg);
VertexArray positions = new VertexArray(4, 3, 4);
float[] position_values = {1, -1, 0, 1, 1, 0, -1, -1, 0, -1, 1, 0};
positions.set(0, 4, position_values);
VertexArray colors = new VertexArray(4, 4, 1);
byte colors_values[] = {127, 127, 127, 127, 127, 0, 0, 127, 127, 127, 127, 127, 0, 0, 127, 127};
colors.set(0, 4, colors_values);
float scale = 1;
float[] bias = {0, 0, 0};
VertexBuffer vertices = new VertexBuffer();
vertices.setPositions(positions, scale, bias);
vertices.setColors(colors);
int[] strips = {4};
int[] indices = {0, 1, 2, 3};
TriangleStripArray tris = new TriangleStripArray(indices, strips);
PolygonMode poly = new PolygonMode();
poly.setCulling(PolygonMode.CULL_NONE);
Material mat = new Material();
mat.setVertexColorTrackingEnable(true);
Appearance app = new Appearance();
app.setPolygonMode(poly);
app.setMaterial(mat);
Mesh mesh1 = new Mesh(vertices, tris, app);
wld.addChild(mesh1);
Mesh mesh2 = new Mesh(vertices, tris, app);
mesh2.translate(3, 0, 0);
wld.addChild(mesh2);
Mesh mesh3 = new Mesh(vertices, tris, app);
mesh3.translate(-3, 0, 0);
wld.addChild(mesh3);
mesh1.setAlignment(cam, Node.NONE, wld, Node.NONE);
mesh2.setAlignment(cam, Node.ORIGIN, wld, Node.ORIGIN);
mesh3.setAlignment(cam, Node.ORIGIN, cam, Node.ORIGIN);
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
g3d.setViewport(0, 0, width, height);
Camera cam = wld.getActiveCamera();
cam.setPerspective(45, width / (float) height, 0.1f, 100.f);
}
public void onDrawFrame(GL10 gl) {
g3d.render(wld);
}