omg ça marche

app/src/main/java/chess/OpenGLMain.java

@@ -16,5 +16,6 @@ public class OpenGLMain {
         commandExecutor.executeCommand(new NewGameCommand());
 
         ddd.run();
+        commandExecutor.close();
     }
 }

app/src/main/java/chess/view/DDDrender/Camera.java

@@ -16,7 +16,7 @@ public class Camera {
     private float pitch = 0.0f;
 
     public Camera() {
-        this.pos = new Vector3f(2, 2.0f, 0);
+        this.pos = new Vector3f(1.5f, 1.5f, 0);
         setRotation(0.0f, -3.14150f / 2.0f);
     }
 

app/src/main/java/chess/view/DDDrender/DDDPlacement.java

@@ -6,15 +6,7 @@ import chess.model.Coordinate;
 
 class DDDPlacement {
 	static public Vector2f coordinates_to_vector(Coordinate coo) {
-		// float newX = switch (x) {
-		// 	case 0 -> -1 + 0.125f;
-		// 	case 1 -> -1 + 0.375f;
-		// 	case 2 -> -1 + 0.625f;
-		// 	case 3 -> -1 + 0.875f;
-
-		// 	default -> 0;
-		// };
-		return new Vector2f(-1.0f + 0.125f + coo.getX() * 0.250f, -1.0f + 0.125f + coo.getY() * 0.250f);
+		return new Vector2f(1.0f - 0.125f - coo.getX() * 0.250f, 1.0f - 0.125f - coo.getY() * 0.250f);
 	}
 	
 }

app/src/main/java/chess/view/DDDrender/ModelLoader.java

@@ -124,10 +124,13 @@ public class ModelLoader {
 
 		AIScene scene = Assimp.aiImportFileFromMemory(
 				data,
-				Assimp.aiProcess_Triangulate | Assimp.aiProcess_PreTransformVertices |
-						Assimp.aiProcess_ValidateDataStructure,
+				Assimp.aiProcess_Triangulate | Assimp.aiProcess_PreTransformVertices | Assimp.aiProcess_GlobalScale
+						| Assimp.aiProcess_ValidateDataStructure,
 				"");
 
+		if (scene == null)
+			System.err.println(Assimp.aiGetErrorString());
+
 		List<VertexArray> vertecies = new ArrayList<>();
 
 		processNode(scene.mRootNode(), scene, vertecies);

app/src/main/java/chess/view/DDDrender/PieceModel.java

@@ -22,7 +22,8 @@ public class PieceModel implements PieceVisitor<String> {
 	public DDDModel getModel(Piece piece) throws IOException {
 		if (piece == null)
 			return null;
-		String path = basePath + colorToString(piece.getColor()) + "-" + visit(piece) + ".glb";
+
+		String path = basePath + colorToString(piece.getColor()) + "-" + visit(piece) + ".fbx";
 		return getModel(path);
 	}
 
@@ -47,7 +48,7 @@ public class PieceModel implements PieceVisitor<String> {
 
 	@Override
 	public String visitPiece(King king) {
-		return "knight";
+		return "king";
 	}
 
 	@Override

app/src/main/java/chess/view/DDDrender/Renderer.java

@@ -80,7 +80,7 @@ public class Renderer {
 		for (int i = 0; i < BOARD_WIDTH; i++) {
 			for (int j = 0; j < BOARD_HEIGHT; j++) {
 				Vector3f color;
-				if ((i + j) % 2 != 0) {
+				if ((i + j) % 2 == 0) {
 					color = new Vector3f(1.0f, 1.0f, 1.0f);
 				} else {
 					color = new Vector3f(0.0f, 0.0f, 0.0f);

app/src/main/java/chess/view/DDDrender/shader/BoardShader.java

@@ -11,13 +11,19 @@ public class BoardShader extends ShaderProgram {
 			layout(location = 1) in vec3 color;
 
 			uniform mat4 camMatrix;
+			uniform vec3 lightPosition;
 
 			flat out vec3 pass_color;
+			out vec3 toLightVector;
 
 			void main(void){
 				gl_Position = camMatrix * vec4(position, 1.0);
+
+				toLightVector = lightPosition - position;
+
 				pass_color = color;
 			}
+
 				""";
 
 	private static String fragmentShader = """
@@ -25,11 +31,34 @@ public class BoardShader extends ShaderProgram {
 
 			flat in vec3 pass_color;
 
+			in vec3 toLightVector;
+
 			out vec4 out_color;
 
 			void main(void){
-				out_color = vec4(pass_color, 1.0);
+				const float shineDamper = 10.0;
+				const float reflectivity = 1.0;
+
+				float lightDistance = length(toLightVector);
+
+				const vec3 attenuation = vec3(0.3, 0.03, 0);
+				float attenuationFactor = attenuation.x + attenuation.y * lightDistance + attenuation.z * lightDistance * lightDistance;
+
+				vec3 unitNormal = vec3(0, 1, 0);
+				vec3 unitLightVector = normalize(toLightVector);
+
+				vec3 lightDirection = -unitLightVector;
+				vec3 reflectedLightDirection = reflect(lightDirection, unitNormal);
+
+				float diffuse = max(0.2, dot(unitNormal, unitLightVector));
+
+				float brightness = diffuse / attenuationFactor;
+
+				out_color = brightness * vec4(pass_color, 1.0);
+				out_color.w = 1.0;
+
 			}
+
 				""";
 
 	private int location_CamMatrix = 0;

app/src/main/java/chess/view/DDDrender/shader/PieceShader.java

@@ -13,11 +13,20 @@ public class PieceShader extends ShaderProgram {
 
 			uniform mat4 camMatrix;
 			uniform mat4 modelTransform;
+			uniform vec3 lightPosition = vec3(0, 1, 0);
+
+			out vec3 toLightVector;
+			out vec3 surfaceNormal;
 
 			flat out vec3 pass_color;
 
 			void main(void){
-				gl_Position = camMatrix * modelTransform * vec4(position, 1.0);
+				vec4 worldPos = modelTransform * vec4(position, 1.0);
+
+				toLightVector = lightPosition - worldPos.xyz;
+				surfaceNormal = (modelTransform * vec4(normal, 0.0)).xyz;
+
+				gl_Position = camMatrix * worldPos;
 				pass_color = position;
 			}
 				""";
@@ -25,12 +34,24 @@ public class PieceShader extends ShaderProgram {
 	private static String fragmentShader = """
 			#version 330
 
+			in vec3 toLightVector;
+			in vec3 surfaceNormal;
+
 			flat in vec3 pass_color;
 
 			out vec4 out_color;
 
 			void main(void){
-				out_color = vec4(pass_color, 1.0);
+				vec3 unitNormal = normalize(surfaceNormal);
+				vec3 unitLightVector = normalize(toLightVector);
+
+				float diffuse = max(0.5, dot(unitNormal, unitLightVector));
+
+				float brightness = diffuse;
+
+				out_color = vec4(pass_color, 1.0) * brightness;
+				out_color.w = 1.0;
+
 			}
 				""";