i am developing under Linux ubuntu 2.6.32-22-generic x86_64
and this call sequence fails:
// get read buffer and reset it
GLint m_currentReadbuf = 0;
-> it fails at the last line with “Invalid Operation”
Does anyone know why it is not possible to set
a readbuffer to a value that was previously called?
Is it an error ( not here http://www.opengl.org/sdk/docs/man/xhtml/glReadBuffer.xml ) to set a readbuffer to its current value?