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glCopyBufferSubData

copy all or part of the data store of a buffer object to the data store of another buffer object

function glCopyBufferSubData(int $readTarget, int $writeTarget, int $readOffset, int $writeOffset, int $size) : void
arguments
  1. int $readTarget Specifies the target to which the source buffer object is bound for glCopyBufferSubData
  2. int $writeTarget Specifies the target to which the destination buffer object is bound for glCopyBufferSubData.
  3. int $readOffset Specifies the offset, in basic machine units, within the data store of the source buffer object at which data will be read.
  4. int $writeOffset Specifies the offset, in basic machine units, within the data store of the destination buffer object at which data will be written.
  5. int $size Specifies the size, in basic machine units, of the data to be copied from the source buffer object to the destination buffer object.
returns

void

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