Posted by gouessej on Oct 25, 2012; 7:49am
URL: https://forum.jogamp.org/Api-copy-works-when-copying-individual-elements-but-not-the-entire-buffer-tp4026612p4026615.html

Hi

The first put() method you use is relative whereas the second put() method you use is absolute (cf. the Java documentation). In the first case, just call clBuffer.getBuffer().rewind() before calling clQueue.putWriteBuffer(clBuffer, true) and it should work.