Hi, you have to use direct buffers with native byte ordering for this to work. Instead of
testBuffer = IntBuffer.wrap( testArray ); you have to do a bit more work like this: ByteBuffer buffer = ByteBuffer.allocateDirect( testArray.length * 4 ); buffer.order( ByteOrder.nativeOrder() ); testBuffer = buffer.asIntBuffer(); testBuffer.put( testArray ); testBuffer.flip(); I didn't test this but wrote it from the top of my head. It should work though. hth, Mario On 17 Mrz., 01:23, ac <[email protected]> wrote: > Hello, > > I have experienced some trouble using VBOs, since the method > glBufferData crashes when I try to copy data to the vertex buffer. > Below is the smallest snippet of code that I found to generate the > crash: > > int numVert = 32; > GL11 gl11 = (GL11)gl; > testArray = new int[numVert * 3]; > testBuffer = IntBuffer.wrap(testArray); > gl11.glGenBuffers(1, testID, 0); > gl11.glBindBuffer(GL11.GL_ARRAY_BUFFER, testID[0]); > final int siz = testBuffer.capacity() * Integer.SIZE; > gl11.glBufferData(GL11.GL_ARRAY_BUFFER, siz, testBuffer, > GL11.GL_STATIC_DRAW); > gl11.glBindBuffer(GL11.GL_ARRAY_BUFFER, 0); > > testArray, testBuffer and testID are members of the class containing > this code, declared as follows: > > int[] testArray; > IntBuffer testBuffer; > int[] testID = {0}; > > I tried this code in several OpenGL applications which don't show any > problem otherwise. > > The crash occurs specifically at the glBufferData() method call. If > numVert is set to zero, then the crash doesn't occur. > > Any comments will be greatly appreciated. > > Thanks, > ac -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
