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    <p>Basically you could create something like a <code>class OBJModel</code> and then have a <code>OBJModelLoader.load(final InputStream is);</code> which loads the <em>wavefront .obj file</em> and returns an instance of the <code>class OBJModel</code>.</p> <p>Within the <code>class OBJModel</code>, you would have some array storing vertices, normals, texture coordinates, faces, materials, etc.</p> <h1>Loading The Model</h1> <p>If you don't know what all those things inside the <em>.obj</em> file means, then you can read all about it on <a href="http://en.wikipedia.org/wiki/Wavefront_.obj_file" rel="nofollow">Wikipedia click here</a></p> <p>Just to give an idea how you would make the <code>OBJModel load()</code> method, here is an idea:</p> <pre><code>public final static OBJModel load(final InputStream is) { final OBJModel model = new OBJModel(); try (final BufferedReader br = new BufferedReader(new InputStreamReader(is))) { String line; while ((line = br.readLine()) != null) { if (line.isEmpty() || (line.charAt(0) == '#')) { continue; } if (line.contains("#")) { line = line.substring(0, line.indexOf('#')); } line = line.trim(); if (line.isEmpty()) { continue; } if (line.startsWith("v ")) { String[] xyz = line.split(" "); float x = Float.parseFloat(xyz[1]); float y = Float.parseFloat(xyz[2]); float z = Float.parseFloat(xyz[3]); model.addVertex(x, y, z); continue; } else if (line.startsWith("vn ")) { String[] xyz = line.split(" "); float x = Float.parseFloat(xyz[1]); float y = Float.parseFloat(xyz[2]); float z = Float.parseFloat(xyz[3]); model.addNormal(x, y, z); continue; } else if (line.startsWith("vt ")) { String[] uv = line.split(" "); float u = Float.parseFloat(uv[1]); float v = Float.parseFloat(uv[2]); model.addTextureCoordinate(u, v); continue; } else if (line.startsWith("f ")) { </code></pre> <p>As I only made this to give you an idea of how to make it you would have to complete it yourself.</p> <h1>Rendering The Model</h1> <p>When you want to render the model, well just do as you would do regularly when you would render vertices with texture coordinates.</p> <p>Blender supplies with all the correct texture coordinates, so the only thing you need to do is bind the texture before you render all the vertices with their texture coordinates.</p> <p>I will recommend using <code>VAOs</code> for storing and rendering the model, though it depends on the version of OpenGL you're using. If you can't use <code>VAOs</code> then just use regular <code>VBOs</code> using the <code>gl*Pointer</code> calls, but don't use immediate mode for rendering.</p>
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    1. POHow do I load 3D textures onto my 3D model in LWJGL
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