3D models

.idea/Helium-Engine.iml

@@ -4,6 +4,7 @@
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/resources" isTestSource="false" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />

src/Test.java

@@ -3,6 +3,7 @@ import org.hl.engine.io.Display;
 import org.hl.engine.io.Input;
 import org.hl.engine.math.lalg.Vector3f;
 import org.hl.engine.math.lalg.Vector2f;
+import org.hl.engine.objects.FirstPersonCamera;
 import org.hl.engine.objects.GameObject;
 import org.hl.engine.objects.ThirdPersonCamera;
 import org.hl.engine.utils.FileUtils;
@@ -20,6 +21,8 @@ public class Test implements Game {
 	public Renderer renderer;
 	public Shader shader;
 
+	public Mesh dragon = ModelLoader.loadModel("resources/models/dragon.obj", "resources/textures/b.png");
+
 	public Mesh cube = new Mesh(new Vertex[] {
 			//Back face
 			new Vertex(new Vector3f(-0.5f,  0.5f, -0.5f), new Vector2f(0.0f, 0.0f)),
@@ -84,16 +87,15 @@ public class Test implements Game {
 
 	public boolean lockToggle = false;
 
-	public GameObject[] gameObjects = new GameObject[500];
-
 	public GameObject cubeObject = new GameObject(cube, new Vector3f(0, 0, 0 ), new Vector3f(0, 0, 0), new Vector3f(1, 1, 1));
 
-	//public GameObject planeObject = new GameObject(plane, new Vector3f(0, 0, 0 ), new Vector3f(0, 0, 0), new Vector3f(1, 1, 1));
-
 	public GameObject planeObject = new GameObject("resources/objects/plane.mesh", new Vector3f(0, 0, 0 ), new Vector3f(0, 0, 0), new Vector3f(1, 1, 1));
 
+	public GameObject dragonObject = new GameObject(dragon, new Vector3f(0, 0, 0), new Vector3f(0, 0, 0), new Vector3f(1, 1, 1));
 
-	public ThirdPersonCamera camera = new ThirdPersonCamera(new Vector3f(0, 0, 5), new Vector3f(0, 0, 0), cubeObject, 0.5f, 5, 0.1f, 20f, true, true, true);
+	// public ThirdPersonCamera camera = new ThirdPersonCamera(new Vector3f(0, 0, 5), new Vector3f(0, 0, 0), cubeObject, 0.5f, 5, 0.1f, 20f, false, true, true);
+
+	public FirstPersonCamera camera = new FirstPersonCamera(new Vector3f(0, 0, 5), new Vector3f(0, 0, 0), 0.5f, 0.15f);
 
 	public Test() throws Exception {
 	}
@@ -138,13 +140,10 @@ public class Test implements Game {
 		// rendering the cube and plane
 		renderer.renderMesh(cubeObject, camera);
 		renderer.renderMesh(planeObject, camera);
+		renderer.renderMesh(dragonObject, camera);
 		//swap buffers so the new one will appear
 
-		for (GameObject gameObject : gameObjects) {
-			renderer.renderMesh(gameObject, camera);
-		}
-
-		display.swapBuffers();
+		display.reset();
 	}
 
 
@@ -167,19 +166,12 @@ public class Test implements Game {
 
 		// Creating / displaying the cube and plane
 		planeObject.create();
+		cubeObject.create();
+		dragonObject.create();
 
 		// Creating the shader
 		shader.create();
 
-
-		for (int i = 0; i < gameObjects.length; i ++) {
-			gameObjects[i] = new GameObject(cube, new Vector3f( (float)Math.random()*50 - 25 , (float)Math.random()*50, (float)Math.random()*50 - 25), new Vector3f(0, 0, 0), new Vector3f(1, 1, 1));
-		}
-
-		for (GameObject gameObject : gameObjects) {
-			gameObject.create();
-		}
-
 		// Creating the input
 
 		i = new Input(display);
@@ -195,9 +187,7 @@ public class Test implements Game {
 		shader.destroy();
 		cubeObject.destroy();
 		planeObject.destroy();
-		for (GameObject gameObject : gameObjects) {
-			gameObject.destroy();
-		}
+		dragonObject.destroy();
 	}
 
 	public static void main(String[] args) throws Exception {

src/org/hl/engine/graphics/Mesh.java

@@ -151,4 +151,8 @@ public class Mesh {
 	public boolean isType() {
 		return type;
 	}
+
+	public void setMaterial(Material material) {
+		this.material = material;
+	}
 }

src/org/hl/engine/graphics/ModelLoader.java

@@ -0,0 +1,61 @@
+package org.hl.engine.graphics;
+
+import org.hl.engine.math.lalg.Vector2f;
+import org.hl.engine.math.lalg.Vector3f;
+import org.lwjgl.assimp.*;
+
+public class ModelLoader {
+	public static Mesh loadModel(String path, String texture) throws Exception {
+		AIScene scene = Assimp.aiImportFile(path, Assimp.aiProcess_JoinIdenticalVertices | Assimp.aiProcess_Triangulate);
+
+		if (scene == null) {
+			throw new Exception("Couldn't load model at " + path);
+		}
+
+		AIMesh mesh = AIMesh.create(scene.mMeshes().get(0));
+		int vertexCount = mesh.mNumVertices();
+
+		AIVector3D.Buffer vertices = mesh.mVertices();
+		AIVector3D.Buffer normals = mesh.mNormals();
+
+		Vertex[] vertexList = new Vertex[vertexCount];
+
+		for (int i = 0; i < vertexCount; i ++) {
+			AIVector3D vertex = vertices.get(i);
+			Vector3f engineVertex = new Vector3f(vertex.x(), vertex.y(), vertex.z());
+
+			AIVector3D normal = normals.get(i);
+			Vector3f engineNormal = new Vector3f(normal.x(), normal.y(), normal.z());
+
+			Vector2f meshTextureCoord = new Vector2f(0, 0);
+
+			if (mesh.mNumUVComponents().get(0) != 0) {
+				AIVector3D tex = mesh.mTextureCoords(0).get(i);
+				meshTextureCoord.setX(tex.x());
+				meshTextureCoord.setY(tex.y());
+			}
+
+			vertexList[i] = new Vertex(engineVertex, meshTextureCoord, engineNormal);
+
+		}
+
+		int faceCount = mesh.mNumFaces();
+		AIFace.Buffer indices = mesh.mFaces();
+		int[] indicesList = new int[faceCount*3];
+
+		for (int i = 0; i < faceCount; i ++) {
+			AIFace face = indices.get(i);
+			indicesList[i * 3 + 0] = face.mIndices().get(0);
+			indicesList[i * 3 + 1] = face.mIndices().get(1);
+			indicesList[i * 3 + 2] = face.mIndices().get(2);
+
+		}
+
+		return new Mesh(vertexList, indicesList, new Material(new Texture(texture)), "texture");
+
+
+	}
+}
+
+
+

src/org/hl/engine/graphics/Vertex.java

@@ -8,7 +8,7 @@ public class Vertex {
 
 	// Just a vertex
 
-	private Vector3f position;
+	private Vector3f position, normal;
 	private Vector3f color;
 	private Vector2f textureCoords;
 	private boolean type;
@@ -19,6 +19,13 @@ public class Vertex {
 		this.color = new Vector3f(1, 1, 1);
 	}
 
+	public Vertex(Vector3f position, Vector2f textureCoords, Vector3f normal) {
+		this.position = position;
+		this.textureCoords = textureCoords;
+		this.normal = normal;
+		this.color = new Vector3f(1, 1, 1);
+	}
+
 	public Vertex(Vector3f position, Vector3f color) {
 		this.position = position;
 		this.color = color;
@@ -47,4 +54,8 @@ public class Vertex {
 	public boolean isType() {
 		return type;
 	}
+
+	public Vector3f getNormal() {
+		return normal;
+	}
 }

src/org/hl/engine/io/Display.java

@@ -254,4 +254,8 @@ public class Display {
 	public void setBackgroundColor(float r, float g, float b) {
 		background.setVector(r, g, b);
 	}
+
+	public void reset() {
+		swapBuffers();
+	}
 }

src/org/hl/engine/objects/GameObject.java

@@ -28,9 +28,7 @@ public class GameObject {
 	}
 
 	public GameObject(String meshFileName, Vector3f position, Vector3f rotation, Vector3f scale) throws Exception {
-		if (!meshFileName.endsWith(".mesh")) {
-			throw new Exception("Wrong file type! ");
-		}
+		if (!meshFileName.endsWith(".mesh")) { throw new Exception("Wrong file type! "); }
 		Yaml yaml = new Yaml();
 		FileInputStream inputStream = new FileInputStream(meshFileName);
 		YMesh yMesh = yaml.loadAs(inputStream, YMesh.class);
@@ -54,22 +52,17 @@ public class GameObject {
 		if (!type.equals("texture") && !type.equals("color")) {
 			throw new Exception("Incorrect type. Type can only be texture or color. ");
 		}
-
 		for (int i = 0; i < vertices.length; i ++) {
 			Vertex value = new Vertex(
 					new Vector3f(vertices[i].getVertex().get(0), vertices[i].getVertex().get(1), vertices[i].getVertex().get(2)),
 					new Vector3f(vertices[i].getColor().get(0), vertices[i].getColor().get(1), vertices[i].getColor().get(2)),
-					new Vector2f(vertices[i].getTexture().get(0), vertices[i].getTexture().get(1))
-
-			);
+					new Vector2f(vertices[i].getTexture().get(0), vertices[i].getTexture().get(1)));
 			meshFormat[i] = value;
-
 		}
 		int[] indices = new int[cull.length];
 		for (int j = 0; j < cull.length; j ++) {
 			indices[j] = cull[j];
 		}
-
 		this.mesh = new Mesh(meshFormat, indices, new Material(new Texture(texture)), type);
 		this.position = position;
 		this.scale = scale;