1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 package com.badlogic.gdx.tests; 18 19 import com.badlogic.gdx.Gdx; 20 import com.badlogic.gdx.graphics.FPSLogger; 21 import com.badlogic.gdx.graphics.GL20; 22 import com.badlogic.gdx.graphics.PerspectiveCamera; 23 import com.badlogic.gdx.graphics.Texture; 24 import com.badlogic.gdx.graphics.g2d.TextureRegion; 25 import com.badlogic.gdx.graphics.g3d.decals.CameraGroupStrategy; 26 import com.badlogic.gdx.graphics.g3d.decals.Decal; 27 import com.badlogic.gdx.graphics.g3d.decals.DecalBatch; 28 import com.badlogic.gdx.math.Vector3; 29 import com.badlogic.gdx.tests.utils.GdxTest; 30 import com.badlogic.gdx.tests.utils.PerspectiveCamController; 31 import com.badlogic.gdx.utils.Array; 32 33 public class SimpleDecalTest extends GdxTest { 34 private static final int NUM_DECALS = 3; 35 DecalBatch batch; 36 Array<Decal> decals = new Array<Decal>(); 37 PerspectiveCamera camera; 38 PerspectiveCamController controller; 39 FPSLogger logger = new FPSLogger(); 40 create()41 public void create () { 42 float width = Gdx.graphics.getWidth(); 43 float height = Gdx.graphics.getHeight(); 44 45 camera = new PerspectiveCamera(45, Gdx.graphics.getWidth(), Gdx.graphics.getHeight()); 46 camera.near = 1; 47 camera.far = 300; 48 camera.position.set(0, 0, 5); 49 controller = new PerspectiveCamController(camera); 50 51 Gdx.input.setInputProcessor(controller); 52 batch = new DecalBatch(new CameraGroupStrategy(camera)); 53 54 TextureRegion[] textures = {new TextureRegion(new Texture(Gdx.files.internal("data/egg.png"))), 55 new TextureRegion(new Texture(Gdx.files.internal("data/wheel.png"))), 56 new TextureRegion(new Texture(Gdx.files.internal("data/badlogic.jpg")))}; 57 58 Decal decal = Decal.newDecal(1, 1, textures[1]); 59 decal.setPosition(0, 0, 0); 60 decals.add(decal); 61 62 decal = Decal.newDecal(1, 1, textures[0], true); 63 decal.setPosition(0.5f, 0.5f, 1); 64 decals.add(decal); 65 66 decal = Decal.newDecal(1, 1, textures[0], true); 67 decal.setPosition(1, 1, -1); 68 decals.add(decal); 69 70 decal = Decal.newDecal(1, 1, textures[2]); 71 decal.setPosition(1.5f, 1.5f, -2); 72 decals.add(decal); 73 74 decal = Decal.newDecal(1, 1, textures[1]); 75 decal.setPosition(2, 2, -1.5f); 76 decals.add(decal); 77 } 78 79 Vector3 dir = new Vector3(); 80 private boolean billboard = true; 81 render()82 public void render () { 83 Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT); 84 Gdx.gl.glEnable(GL20.GL_DEPTH_TEST); 85 86 camera.update(); 87 for (int i = 0; i < decals.size; i++) { 88 Decal decal = decals.get(i); 89 if (billboard) { 90 // billboarding for ortho cam :) 91 // dir.set(-camera.direction.x, -camera.direction.y, -camera.direction.z); 92 // decal.setRotation(dir, Vector3.Y); 93 94 // billboarding for perspective cam 95 decal.lookAt(camera.position, camera.up); 96 } 97 batch.add(decal); 98 } 99 batch.flush(); 100 logger.log(); 101 } 102 103 @Override dispose()104 public void dispose () { 105 batch.dispose(); 106 } 107 } 108
