FogTest.java example

Explorer
libgdx-master
/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.tests.g3d;

import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputMultiplexer;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.graphics.VertexAttributes.Usage;
import com.badlogic.gdx.graphics.g3d.Environment;
import com.badlogic.gdx.graphics.g3d.Material;
import com.badlogic.gdx.graphics.g3d.Model;
import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
import com.badlogic.gdx.graphics.g3d.utils.CameraInputController;
import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;
import com.badlogic.gdx.tests.utils.GdxTest;

public class FogTest extends GdxTest implements ApplicationListener {
	public PerspectiveCamera cam;
	public CameraInputController inputController;
	public ModelBatch modelBatch;
	public Model model;
	public ModelInstance instance;
	public Environment environment;

	@Override
	public void create () {
		modelBatch = new ModelBatch();
		environment = new Environment();
		environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1.f));
		environment.set(new ColorAttribute(ColorAttribute.Fog, 0.13f, 0.13f, 0.13f, 1f));
		environment.add(new DirectionalLight().set(0.8f, 0.8f, 0.8f, -1f, -0.8f, -0.2f));

		cam = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
		cam.position.set(30f, 10f, 30f);
		cam.lookAt(0, 0, 0);
		cam.near = 0.1f;
		cam.far = 45f;
		cam.update();

		ModelBuilder modelBuilder = new ModelBuilder();
		model = modelBuilder.createBox(5f, 5f, 5f, new Material(ColorAttribute.createDiffuse(Color.GREEN)), Usage.Position
			| Usage.Normal);
		instance = new ModelInstance(model);

		Gdx.input.setInputProcessor(new InputMultiplexer(this, inputController = new CameraInputController(cam)));
	}

	@Override
	public void render () {

		animate();

		inputController.update();

		Gdx.gl.glViewport(0, 0, Gdx.graphics.getBackBufferWidth(), Gdx.graphics.getBackBufferHeight());
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);

		Gdx.gl.glClearColor(0.13f, 0.13f, 0.13f, 1);

		modelBatch.begin(cam);
		modelBatch.render(instance, environment);
		modelBatch.end();
	}

	float delta = 0f, dir = 1;

	private void animate () {

		delta = Gdx.graphics.getDeltaTime();

		instance.transform.val[14] += delta * 4 * dir;

		if (Math.abs(instance.transform.val[14]) > 5) {
			dir *= -1;
		}
	}

	@Override
	public void dispose () {
		modelBatch.dispose();
		model.dispose();
	}

	public boolean needsGL20 () {
		return true;
	}

	public void resume () {
	}

	public void resize (int width, int height) {
	}

	public void pause () {
	}
}