Print Page - intbuffer.put problem

Title: intbuffer.put problem
Post by: pandur on March 04, 2008, 23:48:42

Hi,

i had some troubles using gldrawbuffers, but it works now.

but please can enlighten me what is wrong? :)

this works:

Code Select



IntBuffer ib=BufferUtils.createIntBuffer(2);
ib.put(0, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT);
ib.put(1, EXTFramebufferObject.GL_COLOR_ATTACHMENT1_EXT);
GL20.glDrawBuffers(ib);

this does not work:

Code Select



GL20.glDrawBuffers(BufferUtils.createIntBuffer(2).put(new int[]{EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,	EXTFramebufferObject.GL_COLOR_ATTACHMENT1_EXT}));

i think it should give the same result...

thanks :D

Title: Re: intbuffer.put problem
Post by: Matzon on March 05, 2008, 06:37:32

the latter doesn't work, because the put moves the internal pointer in the buffer. You need to call rewind on it.

LWJGL Forum

Programming => Lightweight Java Gaming Library => Topic started by: pandur on March 04, 2008, 23:48:42