Merge branch 'develop'

src/ve/ucv/ciens/ccg/nxtar/NxtARCore.java

@@ -17,7 +17,7 @@ package ve.ucv.ciens.ccg.nxtar;
 
 import ve.ucv.ciens.ccg.nxtar.interfaces.ImageProcessor;
 import ve.ucv.ciens.ccg.nxtar.interfaces.ApplicationEventsListener;
-import ve.ucv.ciens.ccg.nxtar.interfaces.AndroidFunctionalityWrapper;
+import ve.ucv.ciens.ccg.nxtar.interfaces.ActionResolver;
 import ve.ucv.ciens.ccg.nxtar.network.RobotControlThread;
 import ve.ucv.ciens.ccg.nxtar.network.SensorReportThread;
 import ve.ucv.ciens.ccg.nxtar.network.ServiceDiscoveryThread;
@@ -121,7 +121,7 @@ public class NxtARCore extends Game implements ApplicationEventsListener{
 	/**
 	 * <p>Wrapper around the Operating System methods.</p>
 	 */
-	private AndroidFunctionalityWrapper osFunction;
+	private ActionResolver osFunction;
 
 	// Networking related fields.
 	/**
@@ -206,7 +206,7 @@ public class NxtARCore extends Game implements ApplicationEventsListener{
 
 		// Check if the concrete application implements all required interfaces.
 		try{
-			this.osFunction = (AndroidFunctionalityWrapper)concreteApp;
+			this.osFunction = (ActionResolver)concreteApp;
 		}catch(ClassCastException cc){
 			Gdx.app.debug(TAG, CLASS_NAME + ".Main() :: concreteApp does not implement the Toaster interface. Toasting disabled.");
 			this.osFunction = null;

src/ve/ucv/ciens/ccg/nxtar/components/AnimationComponent.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.components;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import com.artemis.Component;
+import com.badlogic.gdx.graphics.g3d.ModelInstance;
+import com.badlogic.gdx.graphics.g3d.utils.AnimationController;
+
+public class AnimationComponent extends Component {
+	public AnimationController controller;
+	public List<String> animationsIds;
+	public int current;
+	public int next;
+	public boolean loop;
+
+	public AnimationComponent(ModelInstance instance) throws IllegalArgumentException{
+		this(instance, -1, false);
+	}
+
+	public AnimationComponent(ModelInstance instance, int next) throws IllegalArgumentException{
+		this(instance, next, false);
+	}
+
+	public AnimationComponent(ModelInstance instance, int next, boolean loop) throws IllegalArgumentException{
+		if(instance == null)
+			throw new IllegalArgumentException("Instance is null.");
+		else if(next < 0)
+			throw new IllegalArgumentException("Next is less than 0.");
+		else if(next > instance.animations.size)
+			throw new IllegalArgumentException("Next is greater than the number of animations for this model.");
+
+		controller    = new AnimationController(instance);
+		animationsIds = new LinkedList<String>();
+		current       = -1;
+		this.next     = next;
+		this.loop     = loop;
+
+		for(int i = 0; i < instance.animations.size; i++){
+			animationsIds.add(instance.animations.get(i).id);
+		}
+	}
+}

src/ve/ucv/ciens/ccg/nxtar/components/CustomShaderComponent.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.components;
+
+import ve.ucv.ciens.ccg.nxtar.graphics.shaders.CustomShaderBase;
+
+import com.artemis.Component;
+
+public class CustomShaderComponent extends Component {
+	public CustomShaderBase shader;
+
+	public CustomShaderComponent(CustomShaderBase shader) throws IllegalArgumentException{
+		if(shader == null)
+			throw new IllegalArgumentException("Shader cannot be null.");
+
+		this.shader = shader;
+	}
+}

src/ve/ucv/ciens/ccg/nxtar/components/EnvironmentComponent.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.components;
+
+import com.artemis.Component;
+import com.badlogic.gdx.graphics.g3d.Environment;
+
+public class EnvironmentComponent extends Component {
+	public Environment environment;
+
+	public EnvironmentComponent(Environment environment) throws IllegalArgumentException{
+		if(environment == null)
+			throw new IllegalArgumentException("Environment is null.");
+
+		this.environment = environment;
+	}
+}

src/ve/ucv/ciens/ccg/nxtar/components/ModelComponent.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.components;
+
+import com.artemis.Component;
+import com.badlogic.gdx.graphics.g3d.Model;
+import com.badlogic.gdx.graphics.g3d.ModelInstance;
+
+public class ModelComponent extends Component {
+	public ModelInstance instance;
+
+	public ModelComponent(Model model) throws IllegalArgumentException{
+		if(model == null)
+			throw new IllegalArgumentException("Model is null.");
+
+		this.instance = new ModelInstance(model);
+	}
+}

src/ve/ucv/ciens/ccg/nxtar/components/ShaderComponent.java

@@ -15,16 +15,15 @@
  */
 package ve.ucv.ciens.ccg.nxtar.components;
 
-import ve.ucv.ciens.ccg.nxtar.graphics.shaders.CustomShaderBase;
-
 import com.artemis.Component;
+import com.badlogic.gdx.graphics.g3d.Shader;
 
-public class ShaderComponent extends Component {
-	public CustomShaderBase shader;
+public class ShaderComponent extends Component{
+	public Shader shader;
 
-	public ShaderComponent(CustomShaderBase shader) throws IllegalArgumentException{
+	public ShaderComponent(Shader shader) throws IllegalArgumentException{
 		if(shader == null)
-			throw new IllegalArgumentException("Shader cannot be null.");
+			throw new IllegalArgumentException("Shader is null.");
 
 		this.shader = shader;
 	}

src/ve/ucv/ciens/ccg/nxtar/entities/MarkerTestEntityCreator.java

@@ -15,79 +15,113 @@
  */
 package ve.ucv.ciens.ccg.nxtar.entities;
 
+import ve.ucv.ciens.ccg.nxtar.components.AnimationComponent;
+import ve.ucv.ciens.ccg.nxtar.components.EnvironmentComponent;
 import ve.ucv.ciens.ccg.nxtar.components.GeometryComponent;
 import ve.ucv.ciens.ccg.nxtar.components.MarkerCodeComponent;
-import ve.ucv.ciens.ccg.nxtar.components.MeshComponent;
+import ve.ucv.ciens.ccg.nxtar.components.ModelComponent;
 import ve.ucv.ciens.ccg.nxtar.components.ShaderComponent;
-import ve.ucv.ciens.ccg.nxtar.exceptions.ShaderFailedToLoadException;
-import ve.ucv.ciens.ccg.nxtar.graphics.shaders.CustomShaderBase;
-import ve.ucv.ciens.ccg.nxtar.graphics.shaders.SingleLightPhongShader;
+import ve.ucv.ciens.ccg.nxtar.graphics.shaders.SingleLightPerPixelShader;
 
 import com.artemis.Entity;
 import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.graphics.GL20;
-import com.badlogic.gdx.graphics.Mesh;
+import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.VertexAttribute;
 import com.badlogic.gdx.graphics.VertexAttributes;
 import com.badlogic.gdx.graphics.VertexAttributes.Usage;
-import com.badlogic.gdx.graphics.g3d.utils.MeshBuilder;
+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.attributes.ColorAttribute;
+import com.badlogic.gdx.graphics.g3d.attributes.FloatAttribute;
+import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
+import com.badlogic.gdx.graphics.g3d.loader.G3dModelLoader;
+import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;
 import com.badlogic.gdx.math.Matrix3;
 import com.badlogic.gdx.math.Vector3;
+import com.badlogic.gdx.utils.JsonReader;
 
 public class MarkerTestEntityCreator extends EntityCreatorBase {
 	private static final String TAG = "MARKER_TEST_ENTITY_CREATOR";
 	private static final String CLASS_NAME = MarkerTestEntityCreator.class.getSimpleName();
 
-	private Mesh markerMesh;
-	private CustomShaderBase phongShader;
+	private Model bombModel;
+	private Model animatedModel;
+	private Model boxModel;
+	private SingleLightPerPixelShader ppShader;
 
 	@Override
 	public void createAllEntities() {
-		MeshBuilder builder;
-		Matrix3 identity = new Matrix3().idt();
-		Entity marker;
+		ModelBuilder builder;
+		Entity bomb, box, anim;
+		G3dModelLoader loader;
+		Environment environment;
+		Material material;
 
 		// Create mesh.
 		Gdx.app.log(TAG, CLASS_NAME + ".createAllEntities(): Creating the meshes.");
-		builder = new MeshBuilder();
-		builder.begin(new VertexAttributes(new VertexAttribute(Usage.Position, 3, "a_position"), new VertexAttribute(Usage.Normal, 3, "a_normal"), new VertexAttribute(Usage.Color, 4, "a_color")), GL20.GL_TRIANGLES);{
-			builder.setColor(1.0f, 1.0f, 1.0f, 1.0f);
-			Vector3 v00 = new Vector3(-0.5f, -0.5f, 0.0f);
-			Vector3 v10 = new Vector3(-0.5f,  0.5f, 0.0f);
-			Vector3 v11 = new Vector3( 0.5f,  0.5f, 0.0f);
-			Vector3 v01 = new Vector3( 0.5f, -0.5f, 0.0f);
-			Vector3 n = new Vector3(0.0f, 1.0f, 0.0f);
-			builder.patch(v00, v10, v11, v01, n, 10, 10);
-		}markerMesh = builder.end();
 
-		// Load the phong shader.
-		Gdx.app.log(TAG, CLASS_NAME + ".createAllEntities(): Loading the phong shader.");
-		try{
-			phongShader = new SingleLightPhongShader().loadShader();
-		}catch(ShaderFailedToLoadException se){
-			Gdx.app.error(TAG, CLASS_NAME + ".InGameState(): " + se.getMessage());
-			Gdx.app.exit();
-		}
+		loader = new G3dModelLoader(new JsonReader());
+
+		bombModel = loader.loadModel(Gdx.files.internal("models/Bomb_test_2.g3dj"));
+		animatedModel = loader.loadModel(Gdx.files.internal("models/cube.g3dj"));
+
+		material = new Material(new FloatAttribute(FloatAttribute.Shininess, 50.0f), new ColorAttribute(ColorAttribute.Diffuse, 1.0f, 1.0f, 1.0f, 1.0f), new ColorAttribute(ColorAttribute.Specular, 1.0f, 1.0f, 1.0f, 1.0f));
+
+		builder = new ModelBuilder();
+		boxModel = builder.createBox(0.5f, 0.5f, 6.0f, material, new VertexAttributes(new VertexAttribute(Usage.Position, 3, "a_position"), new VertexAttribute(Usage.Normal, 3, "a_normal"), new VertexAttribute(Usage.Color, 4, "a_color")).getMask());
+
+		// Load the shader.
+		ppShader = new SingleLightPerPixelShader();
+		ppShader.init();
+
+		environment = new Environment();
+		environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.3f, 0.3f, 0.3f, 1.0f));
+		environment.add(new DirectionalLight().set(new Color(1, 1, 1, 1), new Vector3(1, 0, 0.5f)));
 
 		// Create the entities.
 		Gdx.app.log(TAG, CLASS_NAME + ".createAllEntities(): Creating the enitites.");
-		marker = world.createEntity();
-		marker.addComponent(new GeometryComponent(new Vector3(0.0f, 0.0f, 0.0f), identity, new Vector3(1.0f, 1.0f, 1.0f)));
-		marker.addComponent(new MeshComponent(markerMesh));
-		marker.addComponent(new ShaderComponent(phongShader));
-		marker.addComponent(new MarkerCodeComponent(213));
+		bomb = world.createEntity();
+		bomb.addComponent(new GeometryComponent(new Vector3(0.0f, 0.0f, 0.0f), new Matrix3().idt(), new Vector3(1.0f, 1.0f, 1.0f)));
+		bomb.addComponent(new ModelComponent(bombModel));
+		bomb.addComponent(new EnvironmentComponent(environment));
+		bomb.addComponent(new ShaderComponent(ppShader));
+		bomb.addComponent(new MarkerCodeComponent(1023));
+
+		anim = world.createEntity();
+		anim.addComponent(new GeometryComponent(new Vector3(0.0f, 0.0f, 0.0f), new Matrix3().idt(), new Vector3(0.25f, 0.25f, -0.25f)));
+		anim.addComponent(new ModelComponent(animatedModel));
+		anim.addComponent(new AnimationComponent(anim.getComponent(ModelComponent.class).instance, 0, true));
+		anim.addComponent(new EnvironmentComponent(environment));
+		anim.addComponent(new MarkerCodeComponent(89));
+		anim.addComponent(new ShaderComponent(ppShader));
+
+		box = world.createEntity();
+		box.addComponent(new GeometryComponent(new Vector3(-1.0f, 0.0f, 0.0f), new Matrix3().idt(), new Vector3(1.0f, 1.0f, 1.0f)));
+		box.addComponent(new ModelComponent(boxModel));
+		box.addComponent(new ShaderComponent(ppShader));
+		box.addComponent(new EnvironmentComponent(environment));
 
 		// Add the entities to the world.
 		Gdx.app.log(TAG, CLASS_NAME + ".createAllEntities(): Adding entities to the world.");
-		marker.addToWorld();
+		//sphere.addToWorld();
+		bomb.addToWorld();
+		anim.addToWorld();
+		box.addToWorld();
 	}
 
 	@Override
 	public void dispose() {
-		if(phongShader != null && phongShader.getShaderProgram() != null)
-			phongShader.getShaderProgram().dispose();
+		if(boxModel != null)
+			boxModel.dispose();
 
-		if(markerMesh != null)
-			markerMesh.dispose();
+		if(animatedModel != null)
+			animatedModel.dispose();
+
+		if(bombModel != null)
+			bombModel.dispose();
+
+		if(ppShader != null)
+			ppShader.dispose();
 	}
 }

src/ve/ucv/ciens/ccg/nxtar/entities/TestGameEntityCreator.java

@@ -17,7 +17,7 @@ package ve.ucv.ciens.ccg.nxtar.entities;
 
 import ve.ucv.ciens.ccg.nxtar.components.GeometryComponent;
 import ve.ucv.ciens.ccg.nxtar.components.MeshComponent;
-import ve.ucv.ciens.ccg.nxtar.components.ShaderComponent;
+import ve.ucv.ciens.ccg.nxtar.components.CustomShaderComponent;
 import ve.ucv.ciens.ccg.nxtar.exceptions.ShaderFailedToLoadException;
 import ve.ucv.ciens.ccg.nxtar.graphics.shaders.CustomShaderBase;
 import ve.ucv.ciens.ccg.nxtar.graphics.shaders.SingleLightPhongShader;
@@ -89,22 +89,22 @@ public class TestGameEntityCreator extends EntityCreatorBase {
 		sphere = world.createEntity();
 		sphere.addComponent(new GeometryComponent(new Vector3(0.5f, 0.5f, 0.0f), identity, new Vector3(1.0f, 1.0f, 1.0f)));
 		sphere.addComponent(new MeshComponent(sphereMesh));
-		sphere.addComponent(new ShaderComponent(singleLightPhongShader));
+		sphere.addComponent(new CustomShaderComponent(singleLightPhongShader));
 
 		cube = world.createEntity();
 		cube.addComponent(new GeometryComponent(new Vector3(-0.5f, -0.5f, 0.0f), identity, new Vector3(1.0f, 1.0f, 1.0f)));
 		cube.addComponent(new MeshComponent(cubeMesh));
-		cube.addComponent(new ShaderComponent(singleLightPhongShader));
+		cube.addComponent(new CustomShaderComponent(singleLightPhongShader));
 
 		capsule1 = world.createEntity();
 		capsule1.addComponent(new GeometryComponent(new Vector3(-0.5f, 0.5f, 0.0f), identity, new Vector3(1.5f, 1.0f, 1.0f)));
 		capsule1.addComponent(new MeshComponent(capsuleMesh));
-		capsule1.addComponent(new ShaderComponent(singleLightPhongShader));
+		capsule1.addComponent(new CustomShaderComponent(singleLightPhongShader));
 
 		capsule2 = world.createEntity();
 		capsule2.addComponent(new GeometryComponent(new Vector3(0.5f, -0.5f, 0.0f), identity, new Vector3(1.0f, 1.5f, 1.0f)));
 		capsule2.addComponent(new MeshComponent(capsuleMesh));
-		capsule2.addComponent(new ShaderComponent(singleLightPhongShader));
+		capsule2.addComponent(new CustomShaderComponent(singleLightPhongShader));
 
 		// Add the entities to the world.
 		Gdx.app.log(TAG, CLASS_NAME + ".createAllEntities(): Adding entities to the world.");

src/ve/ucv/ciens/ccg/nxtar/graphics/shaders/SingleLightPerPixelShader.java

@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.graphics.shaders;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.Camera;
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.VertexAttributes;
+import com.badlogic.gdx.graphics.g3d.Renderable;
+import com.badlogic.gdx.graphics.g3d.Shader;
+import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
+import com.badlogic.gdx.graphics.g3d.attributes.FloatAttribute;
+import com.badlogic.gdx.graphics.g3d.utils.RenderContext;
+import com.badlogic.gdx.graphics.glutils.ShaderProgram;
+import com.badlogic.gdx.math.Matrix4;
+import com.badlogic.gdx.math.Vector3;
+import com.badlogic.gdx.utils.GdxRuntimeException;
+
+public class SingleLightPerPixelShader implements Shader{
+	private static final int     MAX_NUM_BONES        = 4;
+	private static final Matrix4 IDENTITY             = new Matrix4();
+	private static final String  VERTEX_SHADER_PATH   = "shaders/directionalPerPixelSingleLight/directionalPerPixel_vert.glsl";
+	private static final String  FRAGMENT_SHADER_PATH = "shaders/directionalPerPixelSingleLight/directionalPerPixel_frag.glsl";
+	private static final String  INCLUDE_SKINNING     = "#define SKINNING\n";
+
+	private ShaderProgram skinningProgram;
+	private ShaderProgram baseProgram;
+	private Camera        camera;
+	private RenderContext context;
+	private Matrix4       normalMatrix;
+
+	// Uniform locations.
+	private int[]   u_geomTrans;
+	private int[]   u_projTrans;
+	private int[]   u_lightPos;
+	private int[]   u_lightDiffuse;
+	private int[]   u_specular;
+	private int[]   u_ambient;
+	private int[]   u_shiny;
+	private int[]   u_cameraPos;
+	private int[]   u_materialDiffuse;
+	private int[]   u_normalMatrix;
+	private int[]   u_bones;
+
+	public SingleLightPerPixelShader(){
+		skinningProgram = null;
+		baseProgram     = null;
+		camera          = null;
+		context         = null;
+	}
+
+	@Override
+	public void init() throws GdxRuntimeException{
+		normalMatrix = new Matrix4().idt();
+		u_bones      = new int[MAX_NUM_BONES];
+
+		// Compile the shader.
+		String vertexCode   = Gdx.files.internal(VERTEX_SHADER_PATH).readString();
+		String fragmentCode = Gdx.files.internal(FRAGMENT_SHADER_PATH).readString();
+
+		skinningProgram = new ShaderProgram(INCLUDE_SKINNING + vertexCode, fragmentCode);
+		baseProgram     = new ShaderProgram(vertexCode, fragmentCode); 
+
+		if(!skinningProgram.isCompiled())
+			throw new GdxRuntimeException(skinningProgram.getLog());
+
+		if(!baseProgram.isCompiled())
+			throw new GdxRuntimeException(skinningProgram.getLog());
+
+		// Create uniform locations.
+		u_projTrans       = new int[2];
+		u_geomTrans       = new int[2];
+		u_lightPos        = new int[2];
+		u_lightDiffuse    = new int[2];
+		u_specular        = new int[2];
+		u_ambient         = new int[2];
+		u_shiny           = new int[2];
+		u_cameraPos       = new int[2];
+		u_materialDiffuse = new int[2];
+		u_normalMatrix    = new int[2];
+
+		// Cache uniform locations.
+		u_projTrans       [0]        = skinningProgram.getUniformLocation("u_projTrans");
+		u_geomTrans       [0]        = skinningProgram.getUniformLocation("u_geomTrans");
+		u_lightPos        [0]        = skinningProgram.getUniformLocation("u_lightPos");
+		u_lightDiffuse    [0]        = skinningProgram.getUniformLocation("u_lightDiffuse");
+		u_specular        [0]        = skinningProgram.getUniformLocation("u_specular");
+		u_ambient         [0]        = skinningProgram.getUniformLocation("u_ambient");
+		u_shiny           [0]        = skinningProgram.getUniformLocation("u_shiny");
+		u_cameraPos       [0]        = skinningProgram.getUniformLocation("u_cameraPos");
+		u_materialDiffuse [0]        = skinningProgram.getUniformLocation("u_materialDiffuse");
+		u_normalMatrix    [0]        = skinningProgram.getUniformLocation("u_normalMatrix");
+
+		u_projTrans       [1]        = baseProgram.getUniformLocation("u_projTrans");
+		u_geomTrans       [1]        = baseProgram.getUniformLocation("u_geomTrans");
+		u_lightPos        [1]        = baseProgram.getUniformLocation("u_lightPos");
+		u_lightDiffuse    [1]        = baseProgram.getUniformLocation("u_lightDiffuse");
+		u_specular        [1]        = baseProgram.getUniformLocation("u_specular");
+		u_ambient         [1]        = baseProgram.getUniformLocation("u_ambient");
+		u_shiny           [1]        = baseProgram.getUniformLocation("u_shiny");
+		u_cameraPos       [1]        = baseProgram.getUniformLocation("u_cameraPos");
+		u_materialDiffuse [1]        = baseProgram.getUniformLocation("u_materialDiffuse");
+		u_normalMatrix    [1]        = baseProgram.getUniformLocation("u_normalMatrix");
+
+		for(int i = 0; i < MAX_NUM_BONES; i++){
+			u_bones[i] = skinningProgram.getUniformLocation("u_bone" + Integer.toString(i));
+		}
+	}
+
+	@Override
+	public void dispose(){
+		if(skinningProgram != null) skinningProgram.dispose();
+		if(baseProgram != null)     baseProgram.dispose();
+	}
+
+	@Override
+	public int compareTo(Shader other){
+		return 0;
+	}
+
+	@Override
+	public boolean canRender(Renderable renderable){
+		// Check for all needed lighting and material attributes.
+		if(renderable.environment.directionalLights.size < 1)
+			return false;
+
+		if(!renderable.environment.has(ColorAttribute.AmbientLight))
+			return false;
+
+		if(!renderable.material.has(ColorAttribute.Diffuse))
+			return false;
+
+		if(!renderable.material.has(ColorAttribute.Specular))
+			return false;
+
+		if(!renderable.material.has(FloatAttribute.Shininess))
+			return false;
+
+		return true;
+	}
+
+	@Override
+	public void begin(Camera camera, RenderContext context) throws GdxRuntimeException{
+		if(this.camera != null || this.context != null)
+			throw new GdxRuntimeException("Called begin twice before calling end.");
+
+		this.camera  = camera;
+		this.context = context;
+
+		// Set render context.
+		this.context.setDepthTest(GL20.GL_LEQUAL);
+		this.context.setDepthMask(true);
+	}
+
+	@Override
+	public void render(Renderable renderable){
+		ShaderProgram program;
+		int index;
+		boolean bonesEnabled;
+
+		// Get material colors.
+		Vector3 lightPosition   = renderable.environment.directionalLights.get(0).direction;
+		Color diffuseLightColor = renderable.environment.directionalLights.get(0).color;
+		Color diffuseColor      = ((ColorAttribute)renderable.material.get(ColorAttribute.Diffuse)).color;
+		Color specularColor     = ((ColorAttribute)renderable.material.get(ColorAttribute.Specular)).color;
+		Color ambientColor      = ((ColorAttribute)renderable.environment.get(ColorAttribute.AmbientLight)).color;
+		float shininess         = ((FloatAttribute)renderable.material.get(FloatAttribute.Shininess)).value;
+
+		if(renderable.mesh.getVertexAttribute(VertexAttributes.Usage.BoneWeight) != null){
+			program      = skinningProgram;
+			index        = 0;
+			bonesEnabled = true;
+		}else{
+			program      = baseProgram;
+			index        = 1;
+			bonesEnabled = false;
+		}
+
+		program.begin();
+
+		// Set camera dependant uniforms.
+		program.setUniformMatrix(u_projTrans[index], this.camera.combined);
+		program.setUniformf(u_cameraPos[index], this.camera.position);
+
+		// Set model dependant uniforms.
+		program.setUniformMatrix(u_geomTrans[index], renderable.worldTransform);
+		program.setUniformMatrix(u_normalMatrix[index], normalMatrix.idt().mul(renderable.worldTransform).inv().tra());
+		program.setUniformf(u_lightPos[index], lightPosition);
+		program.setUniformf(u_lightDiffuse[index], diffuseLightColor);
+		program.setUniformf(u_materialDiffuse[index], diffuseColor);
+		program.setUniformf(u_specular[index], specularColor);
+		program.setUniformf(u_ambient[index], ambientColor);
+		program.setUniformf(u_shiny[index], shininess);
+
+		// Set the bones uniforms.
+		if(bonesEnabled){
+			for(int i = 0; i < MAX_NUM_BONES; i++){
+				if(renderable.bones != null && i < renderable.bones.length && renderable.bones[i] != null)
+					skinningProgram.setUniformMatrix(u_bones[i], renderable.bones[i]);
+				else
+					skinningProgram.setUniformMatrix(u_bones[i], IDENTITY);
+			}
+		}
+
+		renderable.mesh.render(program, renderable.primitiveType, renderable.meshPartOffset, renderable.meshPartSize);
+
+		program.end();
+	}
+
+	@Override
+	public void end(){
+		this.camera  = null;
+		this.context = null;
+	}
+
+}

src/ve/ucv/ciens/ccg/nxtar/interfaces/ActionResolver.java

@@ -15,7 +15,7 @@
  */
 package ve.ucv.ciens.ccg.nxtar.interfaces;
 
-public interface AndroidFunctionalityWrapper{
+public interface ActionResolver{
 	public void showShortToast(String msg);
 	public void showLongToast(String msg);
 	public void enableMulticast();

src/ve/ucv/ciens/ccg/nxtar/states/CameraCalibrationState.java

@@ -40,6 +40,7 @@ import com.badlogic.gdx.graphics.g2d.NinePatch;
 import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
+import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter;
 import com.badlogic.gdx.graphics.glutils.ShaderProgram;
 import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.math.Vector2;
@@ -93,6 +94,7 @@ public class CameraCalibrationState extends BaseState{
 	public CameraCalibrationState(final NxtARCore core){
 		TextButtonStyle tbs;
 		FreeTypeFontGenerator generator;
+		FreeTypeFontParameter param;
 
 		this.core = core;
 		frameMonitor = VideoFrameMonitor.getInstance();
@@ -124,8 +126,12 @@ public class CameraCalibrationState extends BaseState{
 
 		// Set up the sampling button.
 		// Create the font.
+		param = new FreeTypeFontParameter();
+		param.characters = ProjectConstants.FONT_CHARS;
+		param.size = ProjectConstants.MENU_BUTTON_FONT_SIZE;
+		param.flip = false;
 		generator = new FreeTypeFontGenerator(Gdx.files.internal("data/fonts/d-puntillas-B-to-tiptoe.ttf"));
-		font = generator.generateFont(ProjectConstants.MENU_BUTTON_FONT_SIZE, ProjectConstants.FONT_CHARS, false);
+		font = generator.generateFont(param);
 		generator.dispose();
 
 		// Load the textures.

src/ve/ucv/ciens/ccg/nxtar/states/InGameState.java

@@ -22,10 +22,12 @@ import ve.ucv.ciens.ccg.nxtar.NxtARCore.game_states_t;
 import ve.ucv.ciens.ccg.nxtar.entities.EntityCreatorBase;
 import ve.ucv.ciens.ccg.nxtar.entities.MarkerTestEntityCreator;
 import ve.ucv.ciens.ccg.nxtar.graphics.CustomPerspectiveCamera;
+import ve.ucv.ciens.ccg.nxtar.graphics.LightSource;
 import ve.ucv.ciens.ccg.nxtar.graphics.RenderParameters;
 import ve.ucv.ciens.ccg.nxtar.interfaces.ImageProcessor.MarkerData;
 import ve.ucv.ciens.ccg.nxtar.network.monitors.MotorEventQueue;
 import ve.ucv.ciens.ccg.nxtar.network.monitors.VideoFrameMonitor;
+import ve.ucv.ciens.ccg.nxtar.systems.AnimationSystem;
 import ve.ucv.ciens.ccg.nxtar.systems.MarkerPositioningSystem;
 import ve.ucv.ciens.ccg.nxtar.systems.MarkerRenderingSystem;
 import ve.ucv.ciens.ccg.nxtar.systems.ObjectRenderingSystem;
@@ -36,6 +38,7 @@ import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Input;
 import com.badlogic.gdx.controllers.Controller;
 import com.badlogic.gdx.controllers.mappings.Ouya;
+import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.OrthographicCamera;
 import com.badlogic.gdx.graphics.Pixmap;
@@ -45,6 +48,7 @@ import com.badlogic.gdx.graphics.Texture.TextureFilter;
 import com.badlogic.gdx.graphics.Texture.TextureWrap;
 import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
+import com.badlogic.gdx.graphics.g3d.ModelBatch;
 import com.badlogic.gdx.graphics.glutils.FrameBuffer;
 import com.badlogic.gdx.graphics.glutils.ShaderProgram;
 import com.badlogic.gdx.math.Matrix4;
@@ -59,6 +63,11 @@ public class InGameState extends BaseState{
 	private static final float   FAR                    = 100.0f;
 	private static final float   FAR_PLUS_NEAR          = FAR + NEAR;
 	private static final float   FAR_LESS_NEAR          = FAR - NEAR;
+	private static final Vector3 LIGHT_POSITION         = new Vector3(2.0f, 2.0f, 4.0f);
+	private static final Color   AMBIENT_COLOR          = new Color(0.0f, 0.1f, 0.3f, 1.0f);
+	private static final Color   DIFFUSE_COLOR          = new Color(1.0f, 1.0f, 1.0f, 1.0f);
+	private static final Color   SPECULAR_COLOR         = new Color(1.0f, 0.8f, 0.0f, 1.0f);
+	private static final float   SHINYNESS              = 50.0f;
 
 	// Background related fields.
 	private float                           uScaling[];
@@ -67,13 +76,16 @@ public class InGameState extends BaseState{
 	private ShaderProgram                   backgroundShader;
 
 	// 3D rendering fields.
+	private ModelBatch                      modelBatch;
 	private Matrix4                         projectionMatrix;
 	private FrameBuffer                     frameBuffer;
 	private Sprite                          frameBufferSprite;
 
-	// Game objects.
+	// Game world objects.
 	private World                           gameWorld;
 	private EntityCreatorBase               entityCreator;
+	private MarkerRenderingSystem           markerRenderingSystem;
+	private ObjectRenderingSystem           objectRenderingSystem;
 
 	// Cameras.
 	private OrthographicCamera              unitaryOrthoCamera;
@@ -171,19 +183,28 @@ public class InGameState extends BaseState{
 		uScaling[1] = Gdx.graphics.getHeight() > Gdx.graphics.getWidth() ? 16.0f : 9.0f;
 
 		// Set up the 3D rendering.
+		modelBatch = new ModelBatch();
 		projectionMatrix = new Matrix4().idt();
 		frameBuffer = null;
 		perspectiveCamera = null;
 		frameBufferSprite = null;
+		RenderParameters.setLightSource1(new LightSource(LIGHT_POSITION, AMBIENT_COLOR, DIFFUSE_COLOR, SPECULAR_COLOR, SHINYNESS));
 
 		// Set up the game world.
 		gameWorld = new World();
+
 		entityCreator = new MarkerTestEntityCreator();
 		entityCreator.setWorld(gameWorld);
 		entityCreator.createAllEntities();
+
 		gameWorld.setSystem(new MarkerPositioningSystem());
-		gameWorld.setSystem(new MarkerRenderingSystem(), true);
-		gameWorld.setSystem(new ObjectRenderingSystem(), true);
+		gameWorld.setSystem(new AnimationSystem());
+
+		markerRenderingSystem = new MarkerRenderingSystem(modelBatch);
+		objectRenderingSystem = new ObjectRenderingSystem(modelBatch);
+		gameWorld.setSystem(markerRenderingSystem, true);
+		gameWorld.setSystem(objectRenderingSystem, true);
+
 		gameWorld.initialize();
 	}
 
@@ -232,11 +253,6 @@ public class InGameState extends BaseState{
 			perspectiveCamera.update();
 		}
 
-		// Apply the undistortion method if the camera has been calibrated already.
-		/*if(core.cvProc.isCameraCalibrated()){
-			frame = core.cvProc.undistortFrame(frame);
-		}*/
-
 		// Attempt to find the markers in the current video frame.
 		data = core.cvProc.findMarkersInFrame(frame);
 
@@ -265,10 +281,9 @@ public class InGameState extends BaseState{
 			// Set the 3D frame buffer for rendering.
 			frameBuffer.begin();{
 				// Set OpenGL state.
-				Gdx.gl.glDisable(GL20.GL_CULL_FACE);
-				Gdx.gl.glEnable(GL20.GL_DEPTH_TEST);
 				Gdx.gl.glClearColor(0, 0, 0, 0);
 				Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
+				Gdx.gl.glDisable(GL20.GL_TEXTURE_2D);
 
 				// Build the projection matrix.
 				focalPointX   = core.cvProc.getFocalPointX();
@@ -302,11 +317,13 @@ public class InGameState extends BaseState{
 				RenderParameters.setEyePosition(perspectiveCamera.position);
 
 				// Call rendering systems.
-				gameWorld.getSystem(MarkerRenderingSystem.class).setMarkerData(data);
-				gameWorld.getSystem(MarkerRenderingSystem.class).process();
-				gameWorld.getSystem(ObjectRenderingSystem.class).process();
+				markerRenderingSystem.begin(perspectiveCamera, data);
+				markerRenderingSystem.process();
+				markerRenderingSystem.end();
 
-				Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
+				objectRenderingSystem.begin(perspectiveCamera);
+				objectRenderingSystem.process();
+				objectRenderingSystem.end();
 			}frameBuffer.end();
 
 			// Set the frame buffer object texture to a renderable sprite.
@@ -375,6 +392,9 @@ public class InGameState extends BaseState{
 
 	@Override
 	public void dispose(){
+		if(modelBatch != null)
+			modelBatch.dispose();
+
 		if(entityCreator != null)
 			entityCreator.dispose();
 

src/ve/ucv/ciens/ccg/nxtar/states/MainMenuStateBase.java

@@ -31,6 +31,7 @@ import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
+import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter;
 import com.badlogic.gdx.graphics.glutils.ShaderProgram;
 import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.math.Vector2;
@@ -90,6 +91,7 @@ public abstract class MainMenuStateBase extends BaseState{
 		TextureRegion region;
 		TextButtonStyle tbs;
 		FreeTypeFontGenerator generator;
+		FreeTypeFontParameter param;
 
 		this.pixelPerfectCamera = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
 
@@ -104,8 +106,12 @@ public abstract class MainMenuStateBase extends BaseState{
 		menuButtonPressed9p = new NinePatch(new TextureRegion(menuButtonPressedTexture, 0, 0, menuButtonPressedTexture.getWidth(), menuButtonPressedTexture.getHeight()), 49, 49, 45, 45);
 
 		// Create the start button font.
+		param = new FreeTypeFontParameter();
+		param.characters = ProjectConstants.FONT_CHARS;
+		param.size = ProjectConstants.MENU_BUTTON_FONT_SIZE;
+		param.flip = false;
 		generator = new FreeTypeFontGenerator(Gdx.files.internal("data/fonts/d-puntillas-B-to-tiptoe.ttf"));
-		font = generator.generateFont(ProjectConstants.MENU_BUTTON_FONT_SIZE, ProjectConstants.FONT_CHARS, false);
+		font = generator.generateFont(param);
 		generator.dispose();
 
 		// Create the start button.

src/ve/ucv/ciens/ccg/nxtar/states/OuyaMainMenuState.java

@@ -21,7 +21,7 @@ import ve.ucv.ciens.ccg.nxtar.NxtARCore.game_states_t;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.controllers.Controller;
 import com.badlogic.gdx.controllers.mappings.Ouya;
-import com.badlogic.gdx.graphics.GL10;
+import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
@@ -66,7 +66,7 @@ public class OuyaMainMenuState extends MainMenuStateBase{
 	@Override
 	public void render(float delta) {
 		Gdx.gl.glClearColor(1, 1, 1, 1);
-		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
 
 		core.batch.setProjectionMatrix(pixelPerfectCamera.combined);
 		core.batch.begin();{

src/ve/ucv/ciens/ccg/nxtar/states/TabletMainMenuState.java

@@ -18,7 +18,7 @@ package ve.ucv.ciens.ccg.nxtar.states;
 import ve.ucv.ciens.ccg.nxtar.NxtARCore;
 
 import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.graphics.GL10;
+import com.badlogic.gdx.graphics.GL20;
 
 public class TabletMainMenuState extends MainMenuStateBase{
 
@@ -46,7 +46,7 @@ public class TabletMainMenuState extends MainMenuStateBase{
 	@Override
 	public void render(float delta){
 		Gdx.gl.glClearColor(1, 1, 1, 1);
-		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
 
 		core.batch.setProjectionMatrix(pixelPerfectCamera.combined);
 		core.batch.begin();{

src/ve/ucv/ciens/ccg/nxtar/systems/AnimationSystem.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.systems;
+
+import ve.ucv.ciens.ccg.nxtar.components.AnimationComponent;
+
+import com.artemis.Aspect;
+import com.artemis.ComponentMapper;
+import com.artemis.Entity;
+import com.artemis.annotations.Mapper;
+import com.artemis.systems.EntityProcessingSystem;
+import com.badlogic.gdx.Gdx;
+
+public class AnimationSystem extends EntityProcessingSystem {
+	@Mapper ComponentMapper<AnimationComponent> animationMapper;
+
+	@SuppressWarnings("unchecked")
+	public AnimationSystem(){
+		super(Aspect.getAspectForAll(AnimationComponent.class));
+	}
+
+	@Override
+	protected void process(Entity e) {
+		AnimationComponent animation = animationMapper.get(e);
+
+		if(animation.current != animation.next && animation.next >= 0 && animation.next < animation.animationsIds.size()){
+			if(animation.loop)
+				animation.controller.setAnimation(animation.animationsIds.get(animation.next), -1);
+			else
+				animation.controller.setAnimation(animation.animationsIds.get(animation.next));
+		}
+
+		animation.controller.update(Gdx.graphics.getDeltaTime());
+	}
+
+}

src/ve/ucv/ciens/ccg/nxtar/systems/CollisionDetectionSystem.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.systems;
+
+import ve.ucv.ciens.ccg.nxtar.components.ModelComponent;
+
+import com.artemis.Aspect;
+import com.artemis.Entity;
+import com.artemis.systems.EntityProcessingSystem;
+
+public class CollisionDetectionSystem extends EntityProcessingSystem {
+
+	@SuppressWarnings("unchecked")
+	public CollisionDetectionSystem(){
+		super(Aspect.getAspectForAll(ModelComponent.class));
+	}
+
+	@Override
+	protected void process(Entity e) {
+		// TODO Auto-generated method stub
+
+	}
+
+}

src/ve/ucv/ciens/ccg/nxtar/systems/MarkerPositioningSystem.java

@@ -62,17 +62,16 @@ public class MarkerPositioningSystem extends EntityProcessingSystem {
 		Gdx.app.log(TAG, CLASS_NAME + ".process(): Processing markers.");
 		for(int i = 0; i < ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS; i++){
 			if(markers.markerCodes[i] != 1){
+				Gdx.app.log(TAG, CLASS_NAME + ".process(): Checking marker code: " + Integer.toString(markers.markerCodes[i]));
+				Gdx.app.log(TAG, CLASS_NAME + ".process(): This entity's code is: " + Integer.toString(marker.code));
 				if(markers.markerCodes[i] == marker.code){
 					Gdx.app.log(TAG, CLASS_NAME + ".process(): Processing marker code " + Integer.toString(markers.markerCodes[i]) + ".");
 					geometry.position.set(markers.translationVectors[i]);
 					geometry.rotation.set(markers.rotationMatrices[i]);
-					break;
 				}
 			}else{
 				Gdx.app.log(TAG, CLASS_NAME + ".process(): Skipping marker number " + Integer.toString(i) + ".");
 			}
 		}
-
-		markers = null;
 	}
 }

src/ve/ucv/ciens/ccg/nxtar/systems/MarkerRenderingSystem.java

@@ -1,10 +1,25 @@
+/*
+ * Copyright (C) 2014 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar.systems;
 
+import ve.ucv.ciens.ccg.nxtar.components.EnvironmentComponent;
 import ve.ucv.ciens.ccg.nxtar.components.GeometryComponent;
 import ve.ucv.ciens.ccg.nxtar.components.MarkerCodeComponent;
-import ve.ucv.ciens.ccg.nxtar.components.MeshComponent;
+import ve.ucv.ciens.ccg.nxtar.components.ModelComponent;
 import ve.ucv.ciens.ccg.nxtar.components.ShaderComponent;
-import ve.ucv.ciens.ccg.nxtar.graphics.RenderParameters;
 import ve.ucv.ciens.ccg.nxtar.interfaces.ImageProcessor.MarkerData;
 import ve.ucv.ciens.ccg.nxtar.utils.ProjectConstants;
 
@@ -14,16 +29,18 @@ import com.artemis.Entity;
 import com.artemis.annotations.Mapper;
 import com.artemis.systems.EntityProcessingSystem;
 import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.PerspectiveCamera;
+import com.badlogic.gdx.graphics.g3d.ModelBatch;
 import com.badlogic.gdx.math.Matrix4;
 
 public class MarkerRenderingSystem extends EntityProcessingSystem {
 	@Mapper ComponentMapper<MarkerCodeComponent>   markerMapper;
 	@Mapper ComponentMapper<GeometryComponent>     geometryMapper;
+	@Mapper ComponentMapper<ModelComponent>        modelMapper;
+	@Mapper ComponentMapper<EnvironmentComponent>  environmentMapper;
 	@Mapper ComponentMapper<ShaderComponent>       shaderMapper;
-	@Mapper ComponentMapper<MeshComponent> meshMapper;
 
-	private static final String TAG = "MARKER_RENDERING_SYSTEM";
+	private static final String TAG = "MODEL_BATCH_MARKER_RENDERING_SYSTEM";
 	private static final String CLASS_NAME = MarkerRenderingSystem.class.getSimpleName();
 
 	/**
@@ -41,43 +58,59 @@ public class MarkerRenderingSystem extends EntityProcessingSystem {
 	 */
 	private Matrix4 scalingMatrix;
 
-	/**
-	 * <p>The total transformation to be applied to an entity.</p>
-	 */
-	private Matrix4 combinedTransformationMatrix;
+	private MarkerData markers;
 
-	MarkerData markers;
+	private PerspectiveCamera camera;
+
+	private ModelBatch batch;
 
 	@SuppressWarnings("unchecked")
-	public MarkerRenderingSystem(){
-		super(Aspect.getAspectForAll(MarkerCodeComponent.class, GeometryComponent.class, ShaderComponent.class, MeshComponent.class));
+	public MarkerRenderingSystem(ModelBatch batch){
+		super(Aspect.getAspectForAll(MarkerCodeComponent.class, GeometryComponent.class, ShaderComponent.class, EnvironmentComponent.class, ModelComponent.class));
 
 		markers           = null;
+		camera            = null;
+		this.batch             = batch;
 		translationMatrix = new Matrix4().setToTranslation(0.0f, 0.0f, 0.0f);
 		rotationMatrix    = new Matrix4().idt();
 		scalingMatrix     = new Matrix4().setToScaling(0.0f, 0.0f, 0.0f);
-		combinedTransformationMatrix = new Matrix4();
 	}
 
-	public void setMarkerData(MarkerData markers){
+	public void begin(PerspectiveCamera camera, MarkerData markers) throws RuntimeException{
+		if(this.camera != null)
+			throw new RuntimeException("Begin called twice without calling end.");
+
+		if(this.markers != null)
+			throw new RuntimeException("Begin called twice without calling end.");
+
 		this.markers = markers;
+		this.camera = camera;
+		batch.begin(camera);
+	}
+
+	public void end(){
+		batch.end();
+		camera = null;
+		markers = null;
 	}
 
 	@Override
 	protected void process(Entity e) {
 		MarkerCodeComponent   marker;
 		GeometryComponent     geometry;
-		ShaderComponent     shaderComp;
-		MeshComponent       meshComp;
+		EnvironmentComponent  environment;
+		ModelComponent        model;
+		ShaderComponent       shader;
 
-		if(markers == null)
+		if(markers == null || camera == null)
 			return;
 
 		Gdx.app.log(TAG, CLASS_NAME + ".process(): Getting components.");
 		marker      = markerMapper.get(e);
 		geometry    = geometryMapper.get(e);
-		shaderComp = shaderMapper.get(e);
-		meshComp   = meshMapper.get(e);
+		model       = modelMapper.get(e);
+		environment = environmentMapper.get(e);
+		shader      = shaderMapper.get(e);
 
 		Gdx.app.log(TAG, CLASS_NAME + ".process(): Processing markers.");
 		for(int i = 0; i < ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS; i++){
@@ -87,41 +120,39 @@ public class MarkerRenderingSystem extends EntityProcessingSystem {
 					// Set the geometric transformations.
 					translationMatrix.setToTranslation(geometry.position);
 
-					rotationMatrix.val[0] = geometry.rotation.val[0];
-					rotationMatrix.val[1] = geometry.rotation.val[1];
-					rotationMatrix.val[2] = geometry.rotation.val[2];
-					rotationMatrix.val[3] = 0;
-					rotationMatrix.val[4] = geometry.rotation.val[3];
-					rotationMatrix.val[5] = geometry.rotation.val[4];
-					rotationMatrix.val[6] = geometry.rotation.val[5];
-					rotationMatrix.val[7] = 0;
-					rotationMatrix.val[8] = geometry.rotation.val[6];
-					rotationMatrix.val[9] = geometry.rotation.val[7];
-					rotationMatrix.val[10] = geometry.rotation.val[8];
-					rotationMatrix.val[11] = 0;
-					rotationMatrix.val[12] = 0;
-					rotationMatrix.val[13] = 0;
-					rotationMatrix.val[14] = 0;
-					rotationMatrix.val[15] = 1;
+					rotationMatrix.val[Matrix4.M00] = geometry.rotation.val[0];
+					rotationMatrix.val[Matrix4.M10] = geometry.rotation.val[1];
+					rotationMatrix.val[Matrix4.M20] = geometry.rotation.val[2];
+					rotationMatrix.val[Matrix4.M30] = 0;
+
+					rotationMatrix.val[Matrix4.M01] = geometry.rotation.val[3];
+					rotationMatrix.val[Matrix4.M11] = geometry.rotation.val[4];
+					rotationMatrix.val[Matrix4.M21] = geometry.rotation.val[5];
+					rotationMatrix.val[Matrix4.M31] = 0;
+
+					rotationMatrix.val[Matrix4.M02] = geometry.rotation.val[6];
+					rotationMatrix.val[Matrix4.M12] = geometry.rotation.val[7];
+					rotationMatrix.val[Matrix4.M22] = geometry.rotation.val[8];
+					rotationMatrix.val[Matrix4.M32] = 0;
+
+					rotationMatrix.val[Matrix4.M03] = 0;
+					rotationMatrix.val[Matrix4.M13] = 0;
+					rotationMatrix.val[Matrix4.M23] = 0;
+					rotationMatrix.val[Matrix4.M33] = 1;
 
 					scalingMatrix.setToScaling(geometry.scaling);
-					combinedTransformationMatrix.idt().mul(translationMatrix).mul(rotationMatrix).mul(scalingMatrix);
-					RenderParameters.setTransformationMatrix(combinedTransformationMatrix);
+
+					// Apply the geometric transformations to the model.
+					model.instance.transform.idt().mul(translationMatrix).mul(rotationMatrix).mul(scalingMatrix);
+					model.instance.calculateTransforms();
 
 					// Render the marker;
-					shaderComp.shader.getShaderProgram().begin();{
-						shaderComp.shader.setUniforms();
-						meshComp.model.render(shaderComp.shader.getShaderProgram(), GL20.GL_TRIANGLES);
-					}shaderComp.shader.getShaderProgram().end();
-
-					break;
+					batch.render(model.instance, environment.environment, shader.shader);
 				}
 			}else{
 				Gdx.app.log(TAG, CLASS_NAME + ".process(): Skipping marker number " + Integer.toString(i) + ".");
 			}
 		}
-
-		markers = null;
 	}
 
 }

src/ve/ucv/ciens/ccg/nxtar/systems/ObjectRenderingSystem.java

@@ -15,22 +15,20 @@
  */
 package ve.ucv.ciens.ccg.nxtar.systems;
 
+import ve.ucv.ciens.ccg.nxtar.components.EnvironmentComponent;
 import ve.ucv.ciens.ccg.nxtar.components.GeometryComponent;
 import ve.ucv.ciens.ccg.nxtar.components.MarkerCodeComponent;
-import ve.ucv.ciens.ccg.nxtar.components.MeshComponent;
+import ve.ucv.ciens.ccg.nxtar.components.ModelComponent;
 import ve.ucv.ciens.ccg.nxtar.components.ShaderComponent;
-import ve.ucv.ciens.ccg.nxtar.graphics.LightSource;
-import ve.ucv.ciens.ccg.nxtar.graphics.RenderParameters;
 
 import com.artemis.Aspect;
 import com.artemis.ComponentMapper;
 import com.artemis.Entity;
 import com.artemis.annotations.Mapper;
 import com.artemis.systems.EntityProcessingSystem;
-import com.badlogic.gdx.graphics.Color;
-import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.PerspectiveCamera;
+import com.badlogic.gdx.graphics.g3d.ModelBatch;
 import com.badlogic.gdx.math.Matrix4;
-import com.badlogic.gdx.math.Vector3;
 
 /**
  * <p>Entity processing system in charge of rendering 3D objects using OpenGL. The
@@ -39,13 +37,8 @@ import com.badlogic.gdx.math.Vector3;
 public class ObjectRenderingSystem extends EntityProcessingSystem {
 	@Mapper ComponentMapper<GeometryComponent>     geometryMapper;
 	@Mapper ComponentMapper<ShaderComponent>       shaderMapper;
-	@Mapper ComponentMapper<MeshComponent> modelMapper;
-
-	private static final Vector3 LIGHT_POSITION = new Vector3(2.0f, 2.0f, 4.0f);
-	private static final Color AMBIENT_COLOR = new Color(0.0f, 0.1f, 0.2f, 1.0f);
-	private static final Color DIFFUSE_COLOR = new Color(1.0f, 1.0f, 1.0f, 1.0f);
-	private static final Color SPECULAR_COLOR = new Color(1.0f, 0.8f, 0.0f, 1.0f);
-	private static final float SHINYNESS = 50.0f;
+	@Mapper ComponentMapper<ModelComponent>        modelMapper;
+	@Mapper ComponentMapper<EnvironmentComponent>  environmentMapper;
 
 	/**
 	 * <p>A matrix representing 3D translations.</p>
@@ -62,21 +55,32 @@ public class ObjectRenderingSystem extends EntityProcessingSystem {
 	 */
 	private Matrix4 scalingMatrix;
 
-	/**
-	 * <p>The total transformation to be applied to an entity.</p>
-	 */
-	private Matrix4 combinedTransformationMatrix;
+	private PerspectiveCamera camera;
+
+	private ModelBatch batch;
 
 	@SuppressWarnings("unchecked")
-	public ObjectRenderingSystem() {
-		super(Aspect.getAspectForAll(GeometryComponent.class, ShaderComponent.class, MeshComponent.class).exclude(MarkerCodeComponent.class));
-
-		RenderParameters.setLightSource1(new LightSource(LIGHT_POSITION, AMBIENT_COLOR, DIFFUSE_COLOR, SPECULAR_COLOR, SHINYNESS));
+	public ObjectRenderingSystem(ModelBatch batch) {
+		super(Aspect.getAspectForAll(GeometryComponent.class, ShaderComponent.class, ModelComponent.class, EnvironmentComponent.class).exclude(MarkerCodeComponent.class));
 
+		camera            = null;
+		this.batch        = batch;
 		translationMatrix = new Matrix4().setToTranslation(0.0f, 0.0f, 0.0f);
 		rotationMatrix    = new Matrix4().idt();
 		scalingMatrix     = new Matrix4().setToScaling(0.0f, 0.0f, 0.0f);
-		combinedTransformationMatrix = new Matrix4();
+	}
+
+	public void begin(PerspectiveCamera camera) throws RuntimeException{
+		if(this.camera != null)
+			throw new RuntimeException("Begin called twice without calling end.");
+
+		this.camera = camera;
+		batch.begin(camera);
+	}
+
+	public void end(){
+		batch.end();
+		camera = null;
 	}
 
 	/**
@@ -87,28 +91,25 @@ public class ObjectRenderingSystem extends EntityProcessingSystem {
 	 */
 	@Override
 	protected void process(Entity e) {
+		EnvironmentComponent  environment;
 		GeometryComponent     geometryComponent;
 		ShaderComponent       shaderComponent;
-		MeshComponent meshComponent;
+		ModelComponent        modelComponent;
 
 		// Get the necessary components.
 		geometryComponent = geometryMapper.get(e);
-		meshComponent = modelMapper.get(e);
+		modelComponent    = modelMapper.get(e);
 		shaderComponent   = shaderMapper.get(e);
+		environment       = environmentMapper.get(e);
 
 		// Calculate the geometric transformation for this entity.
 		translationMatrix.setToTranslation(geometryComponent.position);
 		rotationMatrix.set(geometryComponent.rotation);
 		scalingMatrix.setToScaling(geometryComponent.scaling);
-		combinedTransformationMatrix.idt().mul(translationMatrix).mul(rotationMatrix).mul(scalingMatrix);
-
-		// Set up the global rendering parameters for this frame.
-		RenderParameters.setTransformationMatrix(combinedTransformationMatrix);
+		modelComponent.instance.transform.idt().mul(translationMatrix).mul(rotationMatrix).mul(scalingMatrix);
+		modelComponent.instance.calculateTransforms();
 
 		// Render this entity.
-		shaderComponent.shader.getShaderProgram().begin();{
-			shaderComponent.shader.setUniforms();
-			meshComponent.model.render(shaderComponent.shader.getShaderProgram(), GL20.GL_TRIANGLES);
-		}shaderComponent.shader.getShaderProgram().end();
+		batch.render(modelComponent.instance, environment.environment, shaderComponent.shader);
 	}
 }