View Full Version : glUniformMatrix4fv when is the data copied?
04-03-2012, 04:12 PM
Does glUniformMatrix4fv instantly copy data pointed to by the passed in pointer? If not when does it make the copy? Would it be the glDrawElements or glDrawArrays call?
04-03-2012, 04:33 PM
The same time as any pointer data you give OpenGL (unless the function explicitly states otherwise): immediately.
Indeed, the only exceptions are the attribute pointer functions when using client memory. Other than that, every function immediately does its copy when given client memory.
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