Added support for gpu skinning. Added animation system.

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

@@ -0,0 +1,44 @@
+/*
+ * 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 AnimationComponent(ModelInstance instance) throws IllegalArgumentException{
+		if(instance == null)
+			throw new IllegalArgumentException("Instance is null.");
+
+		controller = new AnimationController(instance);
+		animationsIds = new LinkedList<String>();
+		current = -1;
+		next = -1;
+
+		for(int i = 0; i < instance.animations.size; i++){
+			animationsIds.add(instance.animations.get(i).id);
+		}
+	}
+}

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

@@ -19,6 +19,7 @@ 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;
@@ -30,28 +31,34 @@ 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 program;
+	private ShaderProgram skinningProgram;
+	private ShaderProgram baseProgram;
 	private Camera        camera;
 	private RenderContext context;
 	private Matrix4       normalMatrix;
 
 	// Uniform locations.
-	private int u_geomTrans;
+	private int[]   u_geomTrans;
-	private int u_projTrans;
+	private int[]   u_projTrans;
-	private int u_lightPos;
+	private int[]   u_lightPos;
-	private int u_lightDiffuse;
+	private int[]   u_lightDiffuse;
-	private int u_specular;
+	private int[]   u_specular;
-	private int u_ambient;
+	private int[]   u_ambient;
-	private int u_shiny;
+	private int[]   u_shiny;
-	private int u_cameraPos;
+	private int[]   u_cameraPos;
-	private int u_materialDiffuse;
+	private int[]   u_materialDiffuse;
-	private int u_normalMatrix;
+	private int[]   u_normalMatrix;
+	private int[]   u_bones;
 
 	public SingleLightPerPixelShader(){
-		program = null;
+		skinningProgram = null;
+		baseProgram     = null;
 		camera          = null;
 		context         = null;
 	}
@@ -59,30 +66,65 @@ public class SingleLightPerPixelShader implements Shader{
 	@Override
 	public void init() throws GdxRuntimeException{
 		normalMatrix = new Matrix4().idt();
+		u_bones      = new int[MAX_NUM_BONES];
 
 		// Compile the shader.
-		program = new ShaderProgram(Gdx.files.internal(VERTEX_SHADER_PATH), Gdx.files.internal(FRAGMENT_SHADER_PATH));
+		String vertexCode   = Gdx.files.internal(VERTEX_SHADER_PATH).readString();
+		String fragmentCode = Gdx.files.internal(FRAGMENT_SHADER_PATH).readString();
 
-		if(!program.isCompiled())
+		skinningProgram = new ShaderProgram(INCLUDE_SKINNING + vertexCode, fragmentCode);
-			throw new GdxRuntimeException(program.getLog());
+		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       = program.getUniformLocation("u_projTrans");
+		u_projTrans       [0]        = skinningProgram.getUniformLocation("u_projTrans");
-		u_geomTrans       = program.getUniformLocation("u_geomTrans");
+		u_geomTrans       [0]        = skinningProgram.getUniformLocation("u_geomTrans");
-		u_lightPos        = program.getUniformLocation("u_lightPos");
+		u_lightPos        [0]        = skinningProgram.getUniformLocation("u_lightPos");
-		u_lightDiffuse    = program.getUniformLocation("u_lightDiffuse");
+		u_lightDiffuse    [0]        = skinningProgram.getUniformLocation("u_lightDiffuse");
-		u_specular        = program.getUniformLocation("u_specular");
+		u_specular        [0]        = skinningProgram.getUniformLocation("u_specular");
-		u_ambient         = program.getUniformLocation("u_ambient");
+		u_ambient         [0]        = skinningProgram.getUniformLocation("u_ambient");
-		u_shiny           = program.getUniformLocation("u_shiny");
+		u_shiny           [0]        = skinningProgram.getUniformLocation("u_shiny");
-		u_cameraPos       = program.getUniformLocation("u_cameraPos");
+		u_cameraPos       [0]        = skinningProgram.getUniformLocation("u_cameraPos");
-		u_materialDiffuse = program.getUniformLocation("u_materialDiffuse");
+		u_materialDiffuse [0]        = skinningProgram.getUniformLocation("u_materialDiffuse");
-		u_normalMatrix    = program.getUniformLocation("u_normalMatrix");
+		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(program != null)
+		if(skinningProgram != null) skinningProgram.dispose();
-			program.dispose();
+		if(baseProgram != null)     baseProgram.dispose();
 	}
 
 	@Override
@@ -118,11 +160,6 @@ public class SingleLightPerPixelShader implements Shader{
 
 		this.camera  = camera;
 		this.context = context;
-		program.begin();
-
-		// Set camera dependant uniforms.
-		program.setUniformMatrix(u_projTrans, this.camera.combined);
-		program.setUniformf(u_cameraPos, this.camera.position);
 
 		// Set render context.
 		this.context.setDepthTest(GL20.GL_LEQUAL);
@@ -131,6 +168,10 @@ public class SingleLightPerPixelShader implements Shader{
 
 	@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;
@@ -139,24 +180,49 @@ public class SingleLightPerPixelShader implements Shader{
 		Color ambientColor      = ((ColorAttribute)renderable.environment.get(ColorAttribute.AmbientLight)).color;
 		float shininess         = ((FloatAttribute)renderable.material.get(FloatAttribute.Shininess)).value;
 
-		// Set model dependant uniforms.
+		if(renderable.mesh.getVertexAttribute(VertexAttributes.Usage.BoneWeight) != null){
-		program.setUniformMatrix(u_geomTrans, renderable.worldTransform);
+			program      = skinningProgram;
-		program.setUniformMatrix(u_normalMatrix, normalMatrix.idt().mul(renderable.worldTransform).inv().tra());
+			index        = 0;
-		program.setUniformf(u_lightPos, lightPosition);
+			bonesEnabled = true;
-		program.setUniformf(u_lightDiffuse, diffuseLightColor);
+		}else{
-		program.setUniformf(u_materialDiffuse, diffuseColor);
+			program      = baseProgram;
-		program.setUniformf(u_specular, specularColor);
+			index        = 1;
-		program.setUniformf(u_ambient, ambientColor);
+			bonesEnabled = false;
-		program.setUniformf(u_shiny, shininess);
+		}
+
+		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);
+			}
+		}
 
-		// Render.
 		renderable.mesh.render(program, renderable.primitiveType, renderable.meshPartOffset, renderable.meshPartSize);
+
+		program.end();
 	}
 
 	@Override
 	public void end(){
-		program.end();
-
 		this.camera  = null;
 		this.context = null;
 	}

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

@@ -27,6 +27,7 @@ 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;
@@ -191,14 +192,19 @@ public class InGameState extends BaseState{
 
 		// Set up the game world.
 		gameWorld = new World();
+
 		entityCreator = new MarkerTestEntityCreator();
 		entityCreator.setWorld(gameWorld);
 		entityCreator.createAllEntities();
+
 		gameWorld.setSystem(new MarkerPositioningSystem());
+		gameWorld.setSystem(new AnimationSystem());
+
 		markerRenderingSystem = new MarkerRenderingSystem(modelBatch);
 		objectRenderingSystem = new ObjectRenderingSystem(modelBatch);
 		gameWorld.setSystem(markerRenderingSystem, true);
 		gameWorld.setSystem(objectRenderingSystem, true);
+
 		gameWorld.initialize();
 	}
 

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

@@ -15,23 +15,32 @@
  */
 package ve.ucv.ciens.ccg.nxtar.systems;
 
-import ve.ucv.ciens.ccg.nxtar.components.ModelComponent;
+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(ModelComponent.class));
+		super(Aspect.getAspectForAll(AnimationComponent.class));
 	}
 
 	@Override
 	protected void process(Entity e) {
-		// TODO Auto-generated method stub
+		AnimationComponent animation = animationMapper.get(e);
 
+		if(animation.current != animation.next){
+			animation.controller.setAnimation(animation.animationsIds.get(animation.next));
+		}
+
+		animation.controller.update(Gdx.graphics.getDeltaTime());
 	}
 
 }