PyOpenGL Vertex Buffer Object (VBO) utility class

 1from OpenGL.GL import *
 2from OpenGL.raw import GL
 3from OpenGL.arrays import ArrayDatatype as ADT
 4
 5
 6class VertexBuffer(object):
 7
 8  def __init__(self, data, usage):
 9    self.buffer = GL.GLuint(0)
10    glGenBuffers(1, self.buffer)
11    self.buffer = self.buffer.value
12    glBindBuffer(GL_ARRAY_BUFFER_ARB, self.buffer)
13    glBufferData(GL_ARRAY_BUFFER_ARB, ADT.arrayByteCount(data), ADT.voidDataPointer(data), usage)
14
15  def __del__(self):
16    glDeleteBuffers(1, GL.GLuint(self.buffer))
17
18  def bind(self):
19    glBindBuffer(GL_ARRAY_BUFFER_ARB, self.buffer)
20
21  def bind_colors(self, size, type, stride=0):
22    self.bind()
23    glColorPointer(size, type, stride, None)
24
25  def bind_edgeflags(self, stride=0):
26    self.bind()
27    glEdgeFlagPointer(stride, None)
28
29  def bind_indexes(self, type, stride=0):
30    self.bind()
31    glIndexPointer(type, stride, None)
32
33  def bind_normals(self, type, stride=0):
34    self.bind()
35    glNormalPointer(type, stride, None)
36
37  def bind_texcoords(self, size, type, stride=0):
38    self.bind()
39    glTexCoordPointer(size, type, stride, None)
40
41  def bind_vertexes(self, size, type, stride=0):
42    self.bind()
43    glVertexPointer(size, type, stride, None)