/* * Copyright (c) 2010, 2014, Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. * * This file is available and licensed under the following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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. * - Neither the name of Oracle Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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 com.javafx.experiments.importers.obj; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.util.Collections; import java.util.HashMap; import java.util.Map; import java.util.logging.Level; import java.util.logging.Logger; import javafx.scene.image.Image; import javafx.scene.paint.Color; import javafx.scene.paint.Material; import javafx.scene.paint.PhongMaterial; import static com.javafx.experiments.importers.obj.ObjImporter.*; /** Reader for OBJ file MTL material files. */ public class MtlReader { private String baseUrl; public MtlReader(String filename, String parentUrl) { baseUrl = parentUrl.substring(0,parentUrl.lastIndexOf('/')+1); String fileUrl = baseUrl + filename; try { URL mtlUrl = new URL(fileUrl); log("Reading material from filename = " + mtlUrl); read(mtlUrl.openStream()); } catch (FileNotFoundException ex) { System.err.println("No material file found for obj. ["+fileUrl+"]"); } catch (IOException ex) { ex.printStackTrace(); } } private Map materials = new HashMap<>(); private PhongMaterial material = new PhongMaterial(); private boolean modified = false; private void read(InputStream inputStream) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(inputStream)); String line; String name = "default"; while ((line = br.readLine()) != null) { try { if (line.isEmpty() || line.startsWith("#")) { // comments and empty lines are ignored } else if (line.startsWith("newmtl ")) { addMaterial(name); name = line.substring("newmtl ".length()); } else if (line.startsWith("Kd ")) { material.setDiffuseColor(readColor(line.substring(3))); modified = true; } else if (line.startsWith("Ks ")) { material.setSpecularColor(readColor(line.substring(3))); modified = true; } else if (line.startsWith("Ns ")) { material.setSpecularPower(Double.parseDouble(line.substring(3))); modified = true; } else if (line.startsWith("map_Kd ")) { material.setDiffuseColor(Color.WHITE); material.setDiffuseMap(loadImage(line.substring("map_Kd ".length()))); // material.setSelfIlluminationMap(loadImage(line.substring("map_Kd ".length()))); // material.setSpecularColor(Color.WHITE); modified = true; // } else if (line.startsWith("illum ")) { // int illumNo = Integer.parseInt(line.substring("illum ".length())); /* 0 Color on and Ambient off 1 Color on and Ambient on 2 Highlight on 3 Reflection on and Ray trace on 4 Transparency: Glass on Reflection: Ray trace on 5 Reflection: Fresnel on and Ray trace on 6 Transparency: Refraction on Reflection: Fresnel off and Ray trace on 7 Transparency: Refraction on Reflection: Fresnel on and Ray trace on 8 Reflection on and Ray trace off 9 Transparency: Glass on Reflection: Ray trace off 10 Casts shadows onto invisible surfaces */ } else { log("material line ignored for " + name + ": " + line); } } catch (Exception ex) { Logger.getLogger(MtlReader.class.getName()).log(Level.SEVERE, "Failed to parse line:" + line, ex); } } addMaterial(name); } private void addMaterial(String name) { if (modified) { if (!materials.containsKey(name)) { materials.put(name, material); } else { log("This material is already added. Ignoring " + name); } material = new PhongMaterial(Color.WHITE); } } private Color readColor(String line) { String[] split = line.trim().split(" +"); float red = Float.parseFloat(split[0]); float green = Float.parseFloat(split[1]); float blue = Float.parseFloat(split[2]); return Color.color(red, green, blue); } private Image loadImage(String filename) { filename = baseUrl + filename; log("Loading image from " + filename); Image image = new Image(filename); return new Image(filename); } public Map getMaterials() { return Collections.unmodifiableMap(materials); } }