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copied!<p>This is the code I wrote to test VBOs with Java. It uses JOGL instead of LWJGL, but that's a minor thing.</p> <p>In addition to glVertexPointer you can also use glTexCoordPointer and glNormalPointer to specify data for texture coordinates and normals and enable them with glEnableClientState(GL.GL_TEXTURE_COORD_ARRAY) and glEnableClientState(GL.GL_NORMAL_ARRAY).</p> <pre><code>import com.sun.opengl.util.*; import javax.media.opengl.*; import javax.swing.*; import java.nio.*; public class VBOTest implements GLEventListener { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); GLCanvas canvas = new GLCanvas(); canvas.addGLEventListener(new VBOTest()); frame.add(canvas); frame.setSize(640, 480); frame.setVisible(true); } private FloatBuffer vertices; private ShortBuffer indices; private int VBOVertices; private int VBOIndices; public void init(GLAutoDrawable drawable) { float[] vertexArray = {-0.5f, 0.5f, 0, 0.5f, 0.5f, 0, 0.5f, -0.5f, 0, -0.5f, -0.5f, 0}; vertices = BufferUtil.newFloatBuffer(vertexArray.length); vertices.put(vertexArray); vertices.flip(); short[] indexArray = {0, 1, 2, 0, 2, 3}; indices = BufferUtil.newShortBuffer(indexArray.length); indices.put(indexArray); indices.flip(); GL gl = drawable.getGL(); int[] temp = new int[2]; gl.glGenBuffers(2, temp, 0); VBOVertices = temp[0]; gl.glBindBuffer(GL.GL_ARRAY_BUFFER, VBOVertices); gl.glBufferData(GL.GL_ARRAY_BUFFER, vertices.capacity() * BufferUtil.SIZEOF_FLOAT, vertices, GL.GL_STATIC_DRAW); gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0); VBOIndices = temp[1]; gl.glBindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, VBOIndices); gl.glBufferData(GL.GL_ELEMENT_ARRAY_BUFFER, indices.capacity() * BufferUtil.SIZEOF_SHORT, indices, GL.GL_STATIC_DRAW); gl.glBindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, 0); } public void display(GLAutoDrawable drawable) { GL gl = drawable.getGL(); gl.glEnableClientState(GL.GL_VERTEX_ARRAY); gl.glBindBuffer(GL.GL_ARRAY_BUFFER, VBOVertices); gl.glVertexPointer(3, GL.GL_FLOAT, 0, 0); gl.glBindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, VBOIndices); gl.glDrawElements(GL.GL_TRIANGLES, indices.capacity(), GL.GL_UNSIGNED_SHORT, 0); gl.glDisableClientState(GL.GL_VERTEX_ARRAY); } public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {} public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {} } </code></pre>

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