Class pyglet.graphics.vertexbuffer.VertexBufferObject

AbstractBuffer --+
                 |
                VertexBufferObject

Known Subclasses:: MappableVertexBufferObject

Lightweight representation of an OpenGL VBO.

The data in the buffer is not replicated in any system memory (unless it is done so by the video driver). While this can improve memory usage and possibly performance, updates to the buffer are relatively slow.

This class does not implement AbstractMappable, and so has no get_region method. See MappableVertexBufferObject for a VBO class that does implement get_region.

Methods

	__init__(self, size, target, usage)
	bind(self) Bind this buffer to its OpenGL target.
	unbind(self) Reset the buffer's OpenGL target.
	set_data(self, data) Set the entire contents of the buffer.
	set_data_region(self, data, start, length) Set part of the buffer contents.
`POINTER(ctypes.c_ubyte)`	map(self, invalidate=False) Map the entire buffer into system memory.
	unmap(self) Unmap a previously mapped memory block.
	__del__(self)
	delete(self) Delete this buffer, reducing system resource usage.
	resize(self, size) Resize the buffer to a new size.

Instance Variables

int	ptr = `0` Memory offset of the buffer, as used by the `glVertexPointer` family of functions (Inherited from pyglet.graphics.vertexbuffer.AbstractBuffer)
int	size = `0` Size of buffer, in bytes (Inherited from pyglet.graphics.vertexbuffer.AbstractBuffer)
int	target OpenGL buffer target, for example `GL_ARRAY_BUFFER` (Inherited from pyglet.graphics.vertexbuffer.AbstractBuffer)
int	usage OpenGL buffer usage, for example `GL_DYNAMIC_DRAW` (Inherited from pyglet.graphics.vertexbuffer.AbstractBuffer)