cache: add .obj model exporter

cache/src/main/java/net/runelite/cache/definitions/ModelDefinition.java

@@ -5,6 +5,7 @@ import net.runelite.cache.models.VertexNormal;
 
 public class ModelDefinition
 {
+	public int id;
 	public short[] texTriangleX;
 	public int[] vertexX;
 	public byte[] faceRenderPriorities;
@@ -44,8 +45,8 @@ public class ModelDefinition
 	public int anInt2595;
 	public int vertexCount = 0;
 	public short[] texturePrimaryColor;
-	public VertexNormal[] normals;
+	public transient VertexNormal[] normals;
-	public FaceNormal[] faceNormals;
+	public transient FaceNormal[] faceNormals;
 
 	public void computeNormals()
 	{

cache/src/main/java/net/runelite/cache/definitions/loaders/ModelLoader.java

@@ -5,9 +5,10 @@ import net.runelite.cache.io.InputStream;
 
 public class ModelLoader
 {
-	public ModelDefinition load(byte[] var1)
+	public ModelDefinition load(int modelId, byte[] var1)
 	{
 		ModelDefinition def = new ModelDefinition();
+		def.id = modelId;
 
 		if (var1[var1.length - 1] == -1 && var1[var1.length - 2] == -1)
 		{

cache/src/main/java/net/runelite/cache/models/ObjExporter.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.cache.models;
+
+import java.awt.Color;
+import java.io.IOException;
+import java.io.PrintWriter;
+import net.runelite.cache.definitions.ModelDefinition;
+
+public class ObjExporter
+{
+	private final ModelDefinition model;
+
+	public ObjExporter(ModelDefinition model)
+	{
+		this.model = model;
+	}
+
+	public void export(PrintWriter objWriter, PrintWriter mtlWriter) throws IOException
+	{
+		model.computeNormals();
+
+		objWriter.println("mtllib " + model.id + ".mtl");
+
+		objWriter.println("o runescapemodel");
+
+		for (int i = 0; i < model.vertexCount; ++i)
+		{
+			objWriter.println("     v " + model.vertexX[i] + " " + model.vertexY[i] + " " + model.vertexZ[i]);
+		}
+
+		for (VertexNormal normal : model.normals)
+		{
+			objWriter.println("     vn " + normal.x + " " + normal.y + " " + normal.z);
+		}
+
+		for (int i = 0; i < model.triangleFaceCount; ++i)
+		{
+			objWriter.println("     usemtl color" + model.faceColor[i]);
+			objWriter.println("             f " + (model.trianglePointsX[i] + 1) + " " + (model.trianglePointsY[i] + 1) + " " + (model.trianglePointsZ[i] + 1));
+			objWriter.println("");
+		}
+
+		for (int i = 0; i < model.faceColor.length; ++i)
+		{
+			mtlWriter.println("newmtl color" + model.faceColor[i]);
+
+			Color color = rs2hsbToColor(model.faceColor[i]);
+
+			double r = color.getRed() / 255.0;
+			double g = color.getGreen() / 255.0;
+			double b = color.getBlue() / 255.0;
+
+			mtlWriter.println("     Kd " + r + " " + g + " " + b);
+
+			if (model.faceAlphas != null)
+			{
+				mtlWriter.println("     d " + (model.faceAlphas[i] & 0xFF) / 255.0);
+			}
+		}
+	}
+
+	private static Color rs2hsbToColor(int hsb)
+	{
+		int decode_hue = (hsb >> 10) & 0x3f;
+		int decode_saturation = (hsb >> 7) & 0x07;
+		int decode_brightness = (hsb & 0x7f);
+		return Color.getHSBColor((float) decode_hue / 63, (float) decode_saturation / 7, (float) decode_brightness / 127);
+	}
+}

cache/src/test/java/net/runelite/cache/ModelDumperTest.java

@@ -69,7 +69,7 @@ public class ModelDumperTest
 				byte[] contents = file.getContents();
 
 				ModelLoader loader = new ModelLoader();
-				loader.load(contents);
+				loader.load(archive.getArchiveId(), contents);
 
 				Files.write(contents, new java.io.File(modelDir, archive.getArchiveId() + ".model"));
 				//Files.write(gson.toJson(loader), new java.io.File(modelDir, archive.getArchiveId() + ".json"), Charset.defaultCharset());

cache/src/test/java/net/runelite/cache/models/ObjExporterTest.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.cache.models;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import net.runelite.cache.definitions.ModelDefinition;
+import net.runelite.cache.definitions.loaders.ModelLoader;
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class ObjExporterTest
+{
+	@Test
+	@Ignore
+	public void testExport() throws Exception
+	{
+		ModelLoader loader = new ModelLoader();
+		ModelDefinition model = loader.load(11048, Files.readAllBytes(new File("D:\\rs\\07\\cache\\models\\11048.model").toPath()));
+
+		ObjExporter exporter = new ObjExporter(model);
+		try (PrintWriter objWriter = new PrintWriter(new FileWriter(new File("C:\\rs\\temp\\11048.obj")));
+			PrintWriter mtlWriter = new PrintWriter(new FileWriter(new File("C:\\rs\\temp\\11048.mtl"))))
+		{
+			exporter.export(objWriter, mtlWriter);
+		}
+	}
+}

model-viewer/src/main/java/net/runelite/modelviewer/ModelViewer.java

@@ -558,7 +558,7 @@ public class ModelViewer
 		{
 			ModelLoader loader = new ModelLoader();
 			byte[] b = Files.readAllBytes(new File("models/" + id + ".model").toPath());
-			md = loader.load(b);
+			md = loader.load(id, b);
 			models[id] = md;
 			return md;
 		}